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person · Reporting owner

Casdin Eli

Disclosed activity across 14 companies

Tapewire entity
36006
SEC CIK
0001534264

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Absci CorpABSI · Entity 4685DirectorJune 08, 2022June 10, 2022
Century Therapeutics, Inc.IPSC · Entity 5739DirectorJune 09, 2022June 10, 2022
EXACT SCIENCES CORPEXAS · Entity 56619DirectorJuly 23, 2020July 24, 2020
GeneDx Holdings Corp.WGS · Entity 1634Director · 10% ownerJune 18, 2026June 23, 2026
STANDARD BIOTOOLS INC.LAB · Entity 6116Director · 10% ownerJune 18, 2026June 23, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Absci Corp

Report date June 08, 2022 · Filed June 10, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.39 · Expires 2032-06-07Direct28,700 Reported balance After 2022-06-08 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2022-06-08 · Grant · Acquired 28,700 · Balance 28,700

F1: The shares subject to this option vest and become exercisable in full on the earlier of (i) the first anniversary of the date of grant and (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such date.

Filing footnotes · ownership attribution and instrument terms

F1: The shares subject to this option vest and become exercisable in full on the earlier of (i) the first anniversary of the date of grant and (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such date.

Century Therapeutics, Inc.

Report date June 09, 2022 · Filed June 10, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $8.56 · Expires 2032-06-09Direct19,872 Reported balance After 2022-06-09 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2022-06-09 · Grant · Acquired 19,872 · Balance 19,872

F1: The option vests on the earlier of (a) June 9, 2023, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The option vests on the earlier of (a) June 9, 2023, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

EXACT SCIENCES CORP

Report date July 23, 2020 · Filed July 24, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect8,820 Reported balance After 2020-07-23 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2020-07-23 · Grant · Acquired 2,558 · Balance 8,820

F1: These shares of restricted stock were issued pursuant to the Company's non-employee director compensation policy.

Common StockSEC Table I · non-derivativeIndirectBy child225 Reported balance Holding disclosure · report date 2020-07-23 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 225

Common StockSEC Table I · non-derivativeIndirectBy child225 Reported balance Holding disclosure · report date 2020-07-23 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 225

Filing footnotes · ownership attribution and instrument terms

F1: These shares of restricted stock were issued pursuant to the Company's non-employee director compensation policy.

GeneDx Holdings Corp.

Report date June 18, 2026 · Filed June 23, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect24,093 Reported balance After 2026-06-18 transaction · row 1
1 source row

Row 1 · 2026-06-18 · Exercise / conversion · Acquired 3,576 · Balance 24,093

F1: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect4,248 Reported balance After 2026-06-18 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-06-18 · Grant · Acquired 4,248 · Balance 4,248

F1: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F5: The entire award shall vest on the earlier of the (i) date of the 2027 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect0 Reported balance After 2026-06-18 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2026-06-18 · Exercise / conversion · Disposed 3,576 · Balance 0

F1: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F6: The entire award vested or vests on the earlier of the: (i) date of the 2026 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

Class A Common StockSEC Table I · non-derivativeIndirectBy Casdin Partners Master Fund, LP3,707,164 Reported balance Holding disclosure · report date 2026-06-18 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 3,707,164

F2: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) the Reporting Person, who is the managing member of Casdin and the GP.

Class A Common StockSEC Table I · non-derivativeIndirectBy Casdin Partners GP, LLC19,247 Reported balance Holding disclosure · report date 2026-06-18 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 19,247

F3: The securities are owned directly by the GP and may be deemed to be indirectly beneficially owned by the Reporting Person, who is the managing member of the GP.

Class A Common StockSEC Table I · non-derivativeIndirectBy CMLS Holdings LLC333,144 Reported balance Holding disclosure · report date 2026-06-18 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 333,144

F4: The securities are owned directly by CMLS Holdings LLC ("CMLS Holdings"). The Board of Managers of CMLS Holdings includes the Reporting Person, who, as a member of the Board of Managers of CMLS Holdings, shares voting and investment discretion with respect to securities held by CMLS Holdings.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F2: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) the Reporting Person, who is the managing member of Casdin and the GP.

F3: The securities are owned directly by the GP and may be deemed to be indirectly beneficially owned by the Reporting Person, who is the managing member of the GP.

F4: The securities are owned directly by CMLS Holdings LLC ("CMLS Holdings"). The Board of Managers of CMLS Holdings includes the Reporting Person, who, as a member of the Board of Managers of CMLS Holdings, shares voting and investment discretion with respect to securities held by CMLS Holdings.

F5: The entire award shall vest on the earlier of the (i) date of the 2027 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

F6: The entire award vested or vests on the earlier of the: (i) date of the 2026 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

STANDARD BIOTOOLS INC.

Report date June 18, 2026 · Filed June 23, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect3,053,169 Reported balance After 2026-06-18 transaction · row 1
1 source row

Row 1 · 2026-06-18 · Grant · Acquired 99,116 · Balance 3,053,169

F1: Represents Restricted Stock Units ("RSUs") that vest in full on the earlier to occur of June 18, 2027 and one day prior to the date of the Company's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date. Each RSU represents the right to receive one share of common stock upon vesting.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.83 · Expires 2036-06-18Direct175,923 Reported balance After 2026-06-18 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-06-18 · Grant · Acquired 175,923 · Balance 175,923

F5: The Option becomes exercisable in twelve equal monthly installments beginning on July 18, 2026, subject to the Reporting Person's continued service through the applicable vesting date.

Common StockSEC Table I · non-derivativeIndirectCasdin Private Growth Equity Fund II, L.P.13,939,637 Reported balance Holding disclosure · report date 2026-06-18 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 13,939,637

F2: The securities are owned directly by Casdin Private Growth Equity Fund II, L.P. (the "Equity Fund II") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Equity Fund II, and (ii) Eli Casdin, the managing member of Casdin.

Common StockSEC Table I · non-derivativeIndirectBy Casdin Private Growth Equity Fund, L.P.2,744,219 Reported balance Holding disclosure · report date 2026-06-18 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 2,744,219

F3: The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the "Equity Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin.

Common StockSEC Table I · non-derivativeIndirectCasdin Partners Master Fund, L.P.72,100,000 Reported balance Holding disclosure · report date 2026-06-18 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 72,100,000

F4: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Filing footnotes · ownership attribution and instrument terms

F1: Represents Restricted Stock Units ("RSUs") that vest in full on the earlier to occur of June 18, 2027 and one day prior to the date of the Company's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date. Each RSU represents the right to receive one share of common stock upon vesting.

F2: The securities are owned directly by Casdin Private Growth Equity Fund II, L.P. (the "Equity Fund II") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Equity Fund II, and (ii) Eli Casdin, the managing member of Casdin.

F3: The securities are owned directly by Casdin Private Growth Equity Fund, L.P. (the "Equity Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Equity Fund, and (ii) Eli Casdin, the managing member of Casdin.

F4: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

F5: The Option becomes exercisable in twelve equal monthly installments beginning on July 18, 2026, subject to the Reporting Person's continued service through the applicable vesting date.

Past disclosures · reporting ended (9)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

2seventy bio, Inc.

Report date May 13, 2025 · Filed May 15, 2025

Jointly reported with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC

Section 16 reporting ended · disclosed 2025-05-15. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.0001 per shareSEC Table I · non-derivativeDirect0 Reported balance After 2025-05-13 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2025-05-13 · Other · Disposed 22,625 · Balance 0

F1: Represents securities that were tendered in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated March 10, 2025, by and among 2seventy bio, Inc. (the "Company"), Daybreak Merger Sub Inc. ("Merger Sub") and Bristol-Myers Squibb Company ("Parent"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the "Company Common Stock") for $5.00 per share (the "Merger Consideration"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the "Merger").

F2: cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock ("Company RSU Award"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors.

F3: The securities were owned directly by Eli Casdin.

Common Stock, par value $0.0001 per shareSEC Table I · non-derivativeIndirectSee footnote0 Reported balance After 2025-05-13 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2025-05-13 · Other · Disposed 2,000,000 · Balance 0

F1: Represents securities that were tendered in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated March 10, 2025, by and among 2seventy bio, Inc. (the "Company"), Daybreak Merger Sub Inc. ("Merger Sub") and Bristol-Myers Squibb Company ("Parent"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the "Company Common Stock") for $5.00 per share (the "Merger Consideration"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the "Merger").

F2: cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock ("Company RSU Award"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors.

F4: The securities were owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to have been indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Stock Options (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.93Direct0 Reported balance After 2025-05-13 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2025-05-13 · Disposition to issuer · Disposed 12,050 · Balance 0

F5: Each option to purchase Company Common Stock ("Company Option"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option.

F3: The securities were owned directly by Eli Casdin.

Stock Options (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.54Direct0 Reported balance After 2025-05-13 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2025-05-13 · Disposition to issuer · Disposed 33,400 · Balance 0

F5: Each option to purchase Company Common Stock ("Company Option"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option.

F3: The securities were owned directly by Eli Casdin.

Filing footnotes · ownership attribution and instrument terms

F1: Represents securities that were tendered in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated March 10, 2025, by and among 2seventy bio, Inc. (the "Company"), Daybreak Merger Sub Inc. ("Merger Sub") and Bristol-Myers Squibb Company ("Parent"). Following completion of a cash tender offer by Merger Sub to acquire all of the issued and outstanding shares of the Company's common stock, par value $0.0001 per share (the "Company Common Stock") for $5.00 per share (the "Merger Consideration"), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a whole owned subsidiary of Parent (the "Merger").

F2: cont'd from footnote (1): Each restricted stock unit in respect of Company Common Stock ("Company RSU Award"), whether vested or unvested, that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company RSU Award immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the Merger Consideration. Additionally, effective as of the Effective Time and as a result of the Merger, Eli Casdin ceased to be a member of the Company's board of directors.

F3: The securities were owned directly by Eli Casdin.

F4: The securities were owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to have been indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

F5: Each option to purchase Company Common Stock ("Company Option"), whether vested or unvested, that was outstanding and unexercised immediately prior to the Effective Time and had a per share exercise price that was less than the Merger Consideration was fully vested, was cancelled and automatically converted into the right to receive, for each share of Company Common Stock underlying such Company Option immediately prior to the Effective Time, an amount (without interest and subject to deduction for any required withholding under applicable law relating to tax) in cash equal to the excess of the Merger Consideration over the per share exercise price of such Company Option.

BIOLIFE SOLUTIONS INC

Report date May 19, 2026 · Filed May 21, 2026

Jointly reported with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC

Section 16 reporting ended · disclosed 2026-05-21. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.001 per shareSEC Table I · non-derivativeIndirectSee footnote4,757,165 Last balance in matching sequence After 2026-05-21 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 1 · 2026-05-19 · Sale · Disposed 300,000 · Balance 5,657,165

F1: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Row 2 · 2026-05-20 · Sale · Disposed 250,000 · Balance 5,407,165

F1: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Row 3 · 2026-05-21 · Sale · Disposed 650,000 · Balance 4,757,165

F1: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Filing footnotes · ownership attribution and instrument terms

F1: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Section 16 reporting ended · disclosed 2018-07-23. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee footnote345,783 Reported balance After 2018-07-23 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2018-07-23 · Conversion · Acquired 345,783 · Balance 345,783

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Common StockSEC Table I · non-derivativeIndirectSee footnote612,450 Reported balance After 2018-07-23 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2018-07-23 · Purchase · Acquired 266,667 · Balance 612,450

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Common StockSEC Table I · non-derivativeIndirectSee footnote158,960 Reported balance After 2018-07-23 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2018-07-23 · Conversion · Acquired 158,960 · Balance 158,960

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F3: These securities are owned directly by Casdin Venture Opportunities Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Venture Opportunities Fund, LP, (ii) Casdin Venture Opportunities Fund GP, LLC, the general partner of Casdin Venture Opportunities Fund, LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Venture Opportunities Fund GP, LLC.

Series E Preferred StockSEC Table II · derivative / convertible securityIndirectSee footnote0 Reported balance After 2018-07-23 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2018-07-23 · Conversion · Disposed 1,333,333 · Balance 0

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Series E-1 Preferred StockSEC Table II · derivative / convertible securityIndirectSee footnote0 Reported balance After 2018-07-23 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2018-07-23 · Conversion · Disposed 342,435 · Balance 0

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Series F Preferred StockSEC Table II · derivative / convertible securityIndirectSee footnote0 Reported balance After 2018-07-23 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2018-07-23 · Conversion · Disposed 1,750,000 · Balance 0

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Series F Preferred StockSEC Table II · derivative / convertible securityIndirectSee footnote0 Reported balance After 2018-07-23 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2018-07-23 · Conversion · Disposed 1,750,000 · Balance 0

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F3: These securities are owned directly by Casdin Venture Opportunities Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Venture Opportunities Fund, LP, (ii) Casdin Venture Opportunities Fund GP, LLC, the general partner of Casdin Venture Opportunities Fund, LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Venture Opportunities Fund GP, LLC.

Filing footnotes · ownership attribution and instrument terms

F1: On July 23, 2018, the Series E-1 and Series F Preferred Stock converted into Common Stock on a 11.009-for-one basis, and the Series E Preferred Stock converted into Common Stock on a 8.56256-for-one basis, upon the closing of the Issuer's initial public offering without payment of consideration. The Series E, Series E-1 and Series F Preferred Stock were convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial pubic offering. The shares had no expiration date.

F2: These securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

F3: These securities are owned directly by Casdin Venture Opportunities Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Venture Opportunities Fund, LP, (ii) Casdin Venture Opportunities Fund GP, LLC, the general partner of Casdin Venture Opportunities Fund, LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Venture Opportunities Fund GP, LLC.

EQRx, Inc.

Report date November 09, 2023 · Filed November 14, 2023

Section 16 reporting ended · disclosed 2023-11-14. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2023-11-09 · Other · Disposed 8,659,372 · Balance 0

F1: The securities were held directly by CMLS Holdings III LLC ("CMLS Holdings III"). Mr. Casdin is a member of the Board of Managers of CMLS Holdings III and as a result shares voting and investment discretion with respect to the securities held by CMLS Holdings III. Mr. Casdin disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2023-11-09 · Other · Disposed 30,214,934 · Balance 0

F2: The securities were owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Master Fund, (ii) Casdin GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP. Mr. Casdin disclaims beneficial ownership of such securities except to the extent of its or his respective pecuniary interest therein.)

Common StockSEC Table I · non-derivativeIndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2023-11-09 · Other · Disposed 3,824,572 · Balance 0

F3: The securities were owned directly by Casdin Venture Opportunities Fund, L.P. (the "Venture Fund") and were deemed to be indirectly bencially owned by (i) Casdin Capital, the investment adviser to the Venture Fund, (ii) Casdin Venture Opportunities Fund GP, LLC (the "Venture GP"), the general partner of the Venture Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Venture GP.

Common StockSEC Table I · non-derivativeIndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2023-11-09 · Other · Disposed 5,488,164 · Balance 0

F4: The securities were owned directly by Casdin Private Growth Equity Fund, L.P. (the "Private Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Private Fund, (ii) Casdin Private Growth Equity Fund GP, LLC (the "Private GP"), the general partner of the Private Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Private GP

Warrants to purchase Class A Common Stock (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2026-12-17IndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2023-11-09 · Other · Disposed 8,110,001 · Balance 0

F1: The securities were held directly by CMLS Holdings III LLC ("CMLS Holdings III"). Mr. Casdin is a member of the Board of Managers of CMLS Holdings III and as a result shares voting and investment discretion with respect to the securities held by CMLS Holdings III. Mr. Casdin disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein.

Earn-out SharesSEC Table II · derivative / convertible security · Expires 2024-12-17IndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2023-11-09 · Other · Disposed 3,472,300 · Balance 0

F5: The Reporting Person received the right to acquire an aggregate of 4,729,839 shares of the Issuer's Common Stock (the "Earn-out Shares") (i) 3,310,887 of which were to be released from escrow if the value weighted average price ("VWAP") for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $12.50; and (ii) 1,418,952 would have been released from such escrow if the VWAP for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $16.50. Any Earn-out Shares not eligible to be released on or prior to December 17, 2024 would have been forfeited and cancelled, and the maximum number of Earn-out Shares the Reporting Person may be eligible to acquire was subject to adjustment.

F2: The securities were owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Master Fund, (ii) Casdin GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP. Mr. Casdin disclaims beneficial ownership of such securities except to the extent of its or his respective pecuniary interest therein.)

Earn-out SharesSEC Table II · derivative / convertible security · Expires 2024-12-17IndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2023-11-09 · Other · Disposed 526,674 · Balance 0

F5: The Reporting Person received the right to acquire an aggregate of 4,729,839 shares of the Issuer's Common Stock (the "Earn-out Shares") (i) 3,310,887 of which were to be released from escrow if the value weighted average price ("VWAP") for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $12.50; and (ii) 1,418,952 would have been released from such escrow if the VWAP for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $16.50. Any Earn-out Shares not eligible to be released on or prior to December 17, 2024 would have been forfeited and cancelled, and the maximum number of Earn-out Shares the Reporting Person may be eligible to acquire was subject to adjustment.

F3: The securities were owned directly by Casdin Venture Opportunities Fund, L.P. (the "Venture Fund") and were deemed to be indirectly bencially owned by (i) Casdin Capital, the investment adviser to the Venture Fund, (ii) Casdin Venture Opportunities Fund GP, LLC (the "Venture GP"), the general partner of the Venture Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Venture GP.

Earn-out SharesSEC Table II · derivative / convertible security · Expires 2024-12-17IndirectSee footnote0 Reported balance After 2023-11-09 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2023-11-09 · Other · Disposed 755,766 · Balance 0

F5: The Reporting Person received the right to acquire an aggregate of 4,729,839 shares of the Issuer's Common Stock (the "Earn-out Shares") (i) 3,310,887 of which were to be released from escrow if the value weighted average price ("VWAP") for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $12.50; and (ii) 1,418,952 would have been released from such escrow if the VWAP for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $16.50. Any Earn-out Shares not eligible to be released on or prior to December 17, 2024 would have been forfeited and cancelled, and the maximum number of Earn-out Shares the Reporting Person may be eligible to acquire was subject to adjustment.

F4: The securities were owned directly by Casdin Private Growth Equity Fund, L.P. (the "Private Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Private Fund, (ii) Casdin Private Growth Equity Fund GP, LLC (the "Private GP"), the general partner of the Private Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Private GP

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.95 · Expires 2032-09-30Direct0 Reported balance After 2023-11-09 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2023-11-09 · Other · Disposed 101,010 · Balance 0

F6: The shares underlying this option vested and became exercisable in full on September 30, 2023, the one-year anniversary of the grant date, subject to the Reporting Person's continuous service on such vesting date, and subject to full acceleration upon the consummation of a Sale Event (as defined in the Issuer's 2021 Stock Option and Incentive Plan).

Filing footnotes · ownership attribution and instrument terms

F1: The securities were held directly by CMLS Holdings III LLC ("CMLS Holdings III"). Mr. Casdin is a member of the Board of Managers of CMLS Holdings III and as a result shares voting and investment discretion with respect to the securities held by CMLS Holdings III. Mr. Casdin disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein.

F2: The securities were owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Master Fund, (ii) Casdin GP, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP. Mr. Casdin disclaims beneficial ownership of such securities except to the extent of its or his respective pecuniary interest therein.)

F3: The securities were owned directly by Casdin Venture Opportunities Fund, L.P. (the "Venture Fund") and were deemed to be indirectly bencially owned by (i) Casdin Capital, the investment adviser to the Venture Fund, (ii) Casdin Venture Opportunities Fund GP, LLC (the "Venture GP"), the general partner of the Venture Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Venture GP.

F4: The securities were owned directly by Casdin Private Growth Equity Fund, L.P. (the "Private Fund") and were deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to the Private Fund, (ii) Casdin Private Growth Equity Fund GP, LLC (the "Private GP"), the general partner of the Private Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Private GP

F5: The Reporting Person received the right to acquire an aggregate of 4,729,839 shares of the Issuer's Common Stock (the "Earn-out Shares") (i) 3,310,887 of which were to be released from escrow if the value weighted average price ("VWAP") for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $12.50; and (ii) 1,418,952 would have been released from such escrow if the VWAP for at least 20 of any 30 consecutive trading days following December 17, 2022 was at least $16.50. Any Earn-out Shares not eligible to be released on or prior to December 17, 2024 would have been forfeited and cancelled, and the maximum number of Earn-out Shares the Reporting Person may be eligible to acquire was subject to adjustment.

F6: The shares underlying this option vested and became exercisable in full on September 30, 2023, the one-year anniversary of the grant date, subject to the Reporting Person's continuous service on such vesting date, and subject to full acceleration upon the consummation of a Sale Event (as defined in the Issuer's 2021 Stock Option and Incentive Plan).

Fulcrum Therapeutics, Inc.

Report date July 22, 2019 · Filed July 22, 2019

Jointly reported with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC

Section 16 reporting ended · disclosed 2019-07-22. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee footnote604,285 Last balance in matching sequence After 2019-07-22 transaction · row 4 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
4 source rows

Row 1 · 2019-07-22 · Conversion · Acquired 464,285 · Balance 464,285

F1: On July 22, 2019, the Series B Preferred Stock converted into Common Stock on a seven-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date.

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Row 2 · 2019-07-22 · Purchase · Acquired 125,000 · Balance 589,285

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Row 3 · 2019-07-22 · Purchase · Acquired 10,000 · Balance 599,285

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Row 4 · 2019-07-22 · Purchase · Acquired 5,000 · Balance 604,285

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Series B Preferred StockSEC Table II · derivative / convertible securityIndirectSee footnote0 Reported balance After 2019-07-22 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2019-07-22 · Conversion · Disposed 3,250,000 · Balance 0

F1: On July 22, 2019, the Series B Preferred Stock converted into Common Stock on a seven-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date.

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Filing footnotes · ownership attribution and instrument terms

F1: On July 22, 2019, the Series B Preferred Stock converted into Common Stock on a seven-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date.

F2: The securities are owned directly by Casdin Partners Master Fund, LP and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Partners Master Fund, LP, (ii) Casdin Partners GP, LLC, the general partner of Casdin Partners Master Fund LP, and (ii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Generation Bio Co.

Report date June 16, 2020 · Filed June 18, 2020

Jointly reported with Casdin Capital, LLC

Section 16 reporting ended · disclosed 2020-06-18. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee Footnote1,611,215 Last balance in matching sequence After 2020-06-16 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2020-06-16 · Conversion · Acquired 961,215 · Balance 961,215

F1: On June 16, 2020, the Series B Preferred Stock automatically converted into Common Stock on approximately a 1.5546-for-one basis (when rounded to the nearest ten-thousandth) without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3: The securities are owned directly by clients of Casdin Capital, LLC and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC as investment adviser to such clients and (ii) Eli Casdin as managing member of Casdin Capital, LLC.

Row 2 · 2020-06-16 · Purchase · Acquired 650,000 · Balance 1,611,215

F3: The securities are owned directly by clients of Casdin Capital, LLC and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC as investment adviser to such clients and (ii) Eli Casdin as managing member of Casdin Capital, LLC.

Series B Preferred StockSEC Table II · derivative / convertible securityIndirectSee Footnote0 Reported balance After 2020-06-16 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2020-06-16 · Conversion · Disposed 1,093,410 · Balance 0

F1: On June 16, 2020, the Series B Preferred Stock automatically converted into Common Stock on approximately a 1.5546-for-one basis (when rounded to the nearest ten-thousandth) without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3: The securities are owned directly by clients of Casdin Capital, LLC and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC as investment adviser to such clients and (ii) Eli Casdin as managing member of Casdin Capital, LLC.

Series C Preferred StockSEC Table II · derivative / convertible securityIndirectSee Footnote0 Reported balance After 2020-06-16 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2020-06-16 · Conversion · Disposed 455,500 · Balance 0

F2: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3: The securities are owned directly by clients of Casdin Capital, LLC and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC as investment adviser to such clients and (ii) Eli Casdin as managing member of Casdin Capital, LLC.

Filing footnotes · ownership attribution and instrument terms

F1: On June 16, 2020, the Series B Preferred Stock automatically converted into Common Stock on approximately a 1.5546-for-one basis (when rounded to the nearest ten-thousandth) without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3: The securities are owned directly by clients of Casdin Capital, LLC and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC as investment adviser to such clients and (ii) Eli Casdin as managing member of Casdin Capital, LLC.

MAXCYTE, INC.

Report date October 03, 2022 · Filed October 05, 2022

Jointly reported with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC

Section 16 reporting ended · disclosed 2022-10-05. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.01 per shareSEC Table I · non-derivativeDirect10,000,000 Reported balance After 2022-10-03 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2022-10-03 · Sale · Disposed 735,786 · Balance 10,000,000

F1: (1) The securities are owned directly by Casdin Partners Master Fund, LP (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Filing footnotes · ownership attribution and instrument terms

F1: (1) The securities are owned directly by Casdin Partners Master Fund, LP (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

SomaLogic, Inc.

Report date January 05, 2024 · Filed January 10, 2024

Section 16 reporting ended · disclosed 2024-01-10. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2024-01-05 transaction · row 1
1 source row

Row 1 · 2024-01-05 · Disposition to issuer · Disposed 3,430 · Balance 0

F1: On October 4, 2023, SomaLogic, Inc., a Delaware corporation (the "Company") entered into the Agreement and Plan of Merger (the "Merger Agreement"), with Standard BioTools Inc., a Delaware corporation ("Parent"), and Martis Merger Sub, Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (the "Merger Sub"). Pursuant to the Merger Agreement, on January 5, 2024, Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (the "Merger").

F2: (Continued from Footnote 1) At the effective time of the Merger (the "Effective Time"), each share of the Company's common stock, par value $0.0001 per share (the "Company Common Stock"), was converted into the right to receive 1.11 shares (the "Exchange Ratio") of the Parent's common stock, par value $0.001(the "Parent Common Stock") and cash in lieu of fractional shares of the Parent Common Stock.

Common StockSEC Table I · non-derivativeIndirectBy CMLS Holdings II LLC0 Reported balance After 2024-01-05 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2024-01-05 · Disposition to issuer · Disposed 6,800,000 · Balance 0

F1: On October 4, 2023, SomaLogic, Inc., a Delaware corporation (the "Company") entered into the Agreement and Plan of Merger (the "Merger Agreement"), with Standard BioTools Inc., a Delaware corporation ("Parent"), and Martis Merger Sub, Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (the "Merger Sub"). Pursuant to the Merger Agreement, on January 5, 2024, Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (the "Merger").

F2: (Continued from Footnote 1) At the effective time of the Merger (the "Effective Time"), each share of the Company's common stock, par value $0.0001 per share (the "Company Common Stock"), was converted into the right to receive 1.11 shares (the "Exchange Ratio") of the Parent's common stock, par value $0.001(the "Parent Common Stock") and cash in lieu of fractional shares of the Parent Common Stock.

F3: The shares are held of record by CMLS Holdings II LLC ("CMLS Holdings II"). The Board of Managers of CMLS Holdings II includes Mr. Casdin, who, as a member of the Board of Managers of CMLS Holdings II, shares voting and investment discretion with respect to the common stock held by CMLS Holdings II. Mr. Casdin may be deemed to have or share beneficial ownership of the securities held by CMLS Holdings II, which include such shares and the warrants referenced in Table II.

Common StockSEC Table I · non-derivativeIndirectBy Casdin Master Fund, L.P.0 Reported balance After 2024-01-05 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2024-01-05 · Disposition to issuer · Disposed 10,132,005 · Balance 0

F1: On October 4, 2023, SomaLogic, Inc., a Delaware corporation (the "Company") entered into the Agreement and Plan of Merger (the "Merger Agreement"), with Standard BioTools Inc., a Delaware corporation ("Parent"), and Martis Merger Sub, Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (the "Merger Sub"). Pursuant to the Merger Agreement, on January 5, 2024, Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (the "Merger").

F2: (Continued from Footnote 1) At the effective time of the Merger (the "Effective Time"), each share of the Company's common stock, par value $0.0001 per share (the "Company Common Stock"), was converted into the right to receive 1.11 shares (the "Exchange Ratio") of the Parent's common stock, par value $0.001(the "Parent Common Stock") and cash in lieu of fractional shares of the Parent Common Stock.

F4: The securities are owned directly by Casdin Partners Master Fund, LP (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

Common StockSEC Table I · non-derivativeIndirectBy Casdin Private Growth Equity Fund, L.P.0 Reported balance After 2024-01-05 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2024-01-05 · Disposition to issuer · Disposed 2,472,270 · Balance 0

F1: On October 4, 2023, SomaLogic, Inc., a Delaware corporation (the "Company") entered into the Agreement and Plan of Merger (the "Merger Agreement"), with Standard BioTools Inc., a Delaware corporation ("Parent"), and Martis Merger Sub, Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (the "Merger Sub"). Pursuant to the Merger Agreement, on January 5, 2024, Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (the "Merger").

F2: (Continued from Footnote 1) At the effective time of the Merger (the "Effective Time"), each share of the Company's common stock, par value $0.0001 per share (the "Company Common Stock"), was converted into the right to receive 1.11 shares (the "Exchange Ratio") of the Parent's common stock, par value $0.001(the "Parent Common Stock") and cash in lieu of fractional shares of the Parent Common Stock.

F5: The shares held by Casdin Private Growth Equity Fund, L.P. may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Private Growth Equity Fund, L.P., (ii) Casdin Private Growth Equity GP, LLC, the general partner of Casdin Private Growth Equity Fund, L.P., and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Private Growth Equity GP, LLC.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.77 · Expires 2031-02-18Direct0 Reported balance After 2024-01-05 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-01-05 · Disposition to issuer · Disposed 41,905 · Balance 0

F7: Pursuant to the Merger Agreement, each option to purchase Company Common Stock (a "Company Option"), whether vested or unvested, that was outstanding immediately prior to the Effective Time, was converted into an option to acquire the number of shares of Parent Common Stock equal to the product of (i) the number of shares subject to such Company Option as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole number of shares of the Parent Common Stock, at an exercise price per share equal to the quotient obtained by dividing the per share exercise price of the Company Option by the Exchange Ratio, rounded up to the nearest whole cent. Each such Company Option shall continue to have, and be subject to, the same terms and conditions applicable to such Company Option immediately prior to the Effective Time, including vesting terms and provisions.

F6: The option vested as to 1/4th of the total grant on February 19, 2022, and thereafter 1/36th of the total grant vests monthly until such time as the option is 100% vested, subject to the continued service of the Reporting Person on each vesting date.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.85 · Expires 2031-10-26Direct0 Reported balance After 2024-01-05 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-01-05 · Disposition to issuer · Disposed 46,705 · Balance 0

F7: Pursuant to the Merger Agreement, each option to purchase Company Common Stock (a "Company Option"), whether vested or unvested, that was outstanding immediately prior to the Effective Time, was converted into an option to acquire the number of shares of Parent Common Stock equal to the product of (i) the number of shares subject to such Company Option as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole number of shares of the Parent Common Stock, at an exercise price per share equal to the quotient obtained by dividing the per share exercise price of the Company Option by the Exchange Ratio, rounded up to the nearest whole cent. Each such Company Option shall continue to have, and be subject to, the same terms and conditions applicable to such Company Option immediately prior to the Effective Time, including vesting terms and provisions.

F8: The option vested as to 1/4th of the total grant on October 27, 2022, and thereafter 1/36th of the total grant vests monthly until such time as the option is 100% vested, subject to the continued service of the Reporting Person on each vesting date.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $9.08 · Expires 2032-02-29Direct0 Reported balance After 2024-01-05 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2024-01-05 · Disposition to issuer · Disposed 20,600 · Balance 0

F7: Pursuant to the Merger Agreement, each option to purchase Company Common Stock (a "Company Option"), whether vested or unvested, that was outstanding immediately prior to the Effective Time, was converted into an option to acquire the number of shares of Parent Common Stock equal to the product of (i) the number of shares subject to such Company Option as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole number of shares of the Parent Common Stock, at an exercise price per share equal to the quotient obtained by dividing the per share exercise price of the Company Option by the Exchange Ratio, rounded up to the nearest whole cent. Each such Company Option shall continue to have, and be subject to, the same terms and conditions applicable to such Company Option immediately prior to the Effective Time, including vesting terms and provisions.

F9: The option is fully vested and exercisable.

Stock Option (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $2.30 · Expires 2033-03-16Direct0 Reported balance After 2024-01-05 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2024-01-05 · Disposition to issuer · Disposed 20,600 · Balance 0

F7: Pursuant to the Merger Agreement, each option to purchase Company Common Stock (a "Company Option"), whether vested or unvested, that was outstanding immediately prior to the Effective Time, was converted into an option to acquire the number of shares of Parent Common Stock equal to the product of (i) the number of shares subject to such Company Option as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole number of shares of the Parent Common Stock, at an exercise price per share equal to the quotient obtained by dividing the per share exercise price of the Company Option by the Exchange Ratio, rounded up to the nearest whole cent. Each such Company Option shall continue to have, and be subject to, the same terms and conditions applicable to such Company Option immediately prior to the Effective Time, including vesting terms and provisions.

F10: The option shall be 100% vested on March 17, 2024, subject to the continued service of the Reporting Person on such vesting date.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect0 Reported balance After 2024-01-05 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2024-01-05 · Disposition to issuer · Disposed 3,430 · Balance 0

F11: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company Common Stock upon settlement for no consideration.

F13: Pursuant to the Merger Agreement, each RSU convertible into shares of Company Common Stock (a "Company RSU") that was outstanding immediately prior to the Effective Time, was converted into an RSU to acquire the number of shares of Parent Common Stock equal to the to the product of (i) the number of shares subject to such Company RSU as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, with the resulting number of shares of Parent Common Stock rounded to the next nearest whole share. Except as noted above, each assumed Company RSU will continue to be governed by the same terms and conditions, including vesting terms and provision, as were applicable to such Company RSU immediately prior to the Effective Time.

F12: The RSUs shall be 100% vested on March 17, 2024, subject to the continued service of the Reporting Person on such vesting date.

Warrant to purchase common stock (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.50 · Expires 2026-09-01IndirectBy CMLS Holdings II LLC0 Reported balance After 2024-01-05 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2024-01-05 · Disposition to issuer · Disposed 4,346,669 · Balance 0

F15: Pursuant to the Merger Agreement, each warrant to purchase Company Common Stock was treated in accordance with its terms on and after the Effective Time and each warrant will convert into the right to receive, upon exercise of such warrant, the number of shares of Parent Common Stock equal to multiplying the number of shares of Company Common Stock subject to such warrant by the Exchange Ratio.

F14: Each warrant is exercisable to purchase one share of Company Common Stock at a price of $11.50 per share, subject to adjustment, as described in the Issuer's Annual Report on Form 10-K, for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission on March 28, 2023.

F3: The shares are held of record by CMLS Holdings II LLC ("CMLS Holdings II"). The Board of Managers of CMLS Holdings II includes Mr. Casdin, who, as a member of the Board of Managers of CMLS Holdings II, shares voting and investment discretion with respect to the common stock held by CMLS Holdings II. Mr. Casdin may be deemed to have or share beneficial ownership of the securities held by CMLS Holdings II, which include such shares and the warrants referenced in Table II.

Filing footnotes · ownership attribution and instrument terms

F1: On October 4, 2023, SomaLogic, Inc., a Delaware corporation (the "Company") entered into the Agreement and Plan of Merger (the "Merger Agreement"), with Standard BioTools Inc., a Delaware corporation ("Parent"), and Martis Merger Sub, Inc., a Delaware corporation and a wholly owned Subsidiary of Parent (the "Merger Sub"). Pursuant to the Merger Agreement, on January 5, 2024, Merger Sub merged with and into the Company, with the Company surviving as a wholly-owned subsidiary of Parent (the "Merger").

F2: (Continued from Footnote 1) At the effective time of the Merger (the "Effective Time"), each share of the Company's common stock, par value $0.0001 per share (the "Company Common Stock"), was converted into the right to receive 1.11 shares (the "Exchange Ratio") of the Parent's common stock, par value $0.001(the "Parent Common Stock") and cash in lieu of fractional shares of the Parent Common Stock.

F3: The shares are held of record by CMLS Holdings II LLC ("CMLS Holdings II"). The Board of Managers of CMLS Holdings II includes Mr. Casdin, who, as a member of the Board of Managers of CMLS Holdings II, shares voting and investment discretion with respect to the common stock held by CMLS Holdings II. Mr. Casdin may be deemed to have or share beneficial ownership of the securities held by CMLS Holdings II, which include such shares and the warrants referenced in Table II.

F4: The securities are owned directly by Casdin Partners Master Fund, LP (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC, the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Partners GP, LLC.

F5: The shares held by Casdin Private Growth Equity Fund, L.P. may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to Casdin Private Growth Equity Fund, L.P., (ii) Casdin Private Growth Equity GP, LLC, the general partner of Casdin Private Growth Equity Fund, L.P., and (iii) Eli Casdin, the managing member of Casdin Capital, LLC and Casdin Private Growth Equity GP, LLC.

F6: The option vested as to 1/4th of the total grant on February 19, 2022, and thereafter 1/36th of the total grant vests monthly until such time as the option is 100% vested, subject to the continued service of the Reporting Person on each vesting date.

F7: Pursuant to the Merger Agreement, each option to purchase Company Common Stock (a "Company Option"), whether vested or unvested, that was outstanding immediately prior to the Effective Time, was converted into an option to acquire the number of shares of Parent Common Stock equal to the product of (i) the number of shares subject to such Company Option as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole number of shares of the Parent Common Stock, at an exercise price per share equal to the quotient obtained by dividing the per share exercise price of the Company Option by the Exchange Ratio, rounded up to the nearest whole cent. Each such Company Option shall continue to have, and be subject to, the same terms and conditions applicable to such Company Option immediately prior to the Effective Time, including vesting terms and provisions.

F8: The option vested as to 1/4th of the total grant on October 27, 2022, and thereafter 1/36th of the total grant vests monthly until such time as the option is 100% vested, subject to the continued service of the Reporting Person on each vesting date.

F9: The option is fully vested and exercisable.

F10: The option shall be 100% vested on March 17, 2024, subject to the continued service of the Reporting Person on such vesting date.

F11: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company Common Stock upon settlement for no consideration.

F12: The RSUs shall be 100% vested on March 17, 2024, subject to the continued service of the Reporting Person on such vesting date.

F13: Pursuant to the Merger Agreement, each RSU convertible into shares of Company Common Stock (a "Company RSU") that was outstanding immediately prior to the Effective Time, was converted into an RSU to acquire the number of shares of Parent Common Stock equal to the to the product of (i) the number of shares subject to such Company RSU as of immediately prior to the Effective Time, multiplied by (ii) the Exchange Ratio, with the resulting number of shares of Parent Common Stock rounded to the next nearest whole share. Except as noted above, each assumed Company RSU will continue to be governed by the same terms and conditions, including vesting terms and provision, as were applicable to such Company RSU immediately prior to the Effective Time.

F14: Each warrant is exercisable to purchase one share of Company Common Stock at a price of $11.50 per share, subject to adjustment, as described in the Issuer's Annual Report on Form 10-K, for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission on March 28, 2023.

F15: Pursuant to the Merger Agreement, each warrant to purchase Company Common Stock was treated in accordance with its terms on and after the Effective Time and each warrant will convert into the right to receive, upon exercise of such warrant, the number of shares of Parent Common Stock equal to multiplying the number of shares of Company Common Stock subject to such warrant by the Exchange Ratio.

Tenaya Therapeutics, Inc.

Report date November 17, 2022 · Filed November 26, 2022

Jointly reported with Casdin Capital, LLC

Section 16 reporting ended · disclosed 2022-11-26. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee footnote6,078,860 Reported balance After 2022-11-17 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2022-11-17 · Purchase · Acquired 2,492,042 · Balance 6,078,860

F1: The securities are owned directly by clients of Casdin Capital, LLC ("Casdin Capital") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to such clients and (ii) Eli Casdin, the managing member of Casdin Capital.

WarrantSEC Table II · derivative / convertible security · Conversion / exercise price $0.00IndirectSee footnote1,354,111 Reported balance After 2022-11-17 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2022-11-17 · Purchase · Acquired 1,354,111 · Balance 1,354,111

F2: Each Warrant will be exercisable on or after the date of issuance until the date the Warrant is exercised in full. Each Warrant will be exercisable, in the holder's discretion, by (i) payment in full in immediately available funds for the number of shares of common stock purchased upon such exercise or (ii) a cashless exercise, in which case the holder would receive upon such exercise the net number of shares of common stock determined according to a pre-set formula.

F1: The securities are owned directly by clients of Casdin Capital, LLC ("Casdin Capital") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to such clients and (ii) Eli Casdin, the managing member of Casdin Capital.

Filing footnotes · ownership attribution and instrument terms

F1: The securities are owned directly by clients of Casdin Capital, LLC ("Casdin Capital") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, the investment adviser to such clients and (ii) Eli Casdin, the managing member of Casdin Capital.

F2: Each Warrant will be exercisable on or after the date of issuance until the date the Warrant is exercised in full. Each Warrant will be exercisable, in the holder's discretion, by (i) payment in full in immediately available funds for the number of shares of common stock purchased upon such exercise or (ii) a cashless exercise, in which case the holder would receive upon such exercise the net number of shares of common stock determined according to a pre-set formula.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 18, 2026 Filed Jun 23, 2026 21:41 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 GrantStock Option (Right to buy) · Derivative 175,923 $0.00 Strike: $0.83 $0.00
Disclosure

SEC source: 0001193125-26-279828 · ownership.xml · derivative · entry 5

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,923

Underlying: Common Stock · 175,923 shares

Expires 2036-06-18

F5 · derivative.exercise_date: The Option becomes exercisable in twelve equal monthly installments beginning on July 18, 2026, subject to the Reporting Person's continued service through the applicable vesting date.

Read SEC document
June 18, 2026 Filed Jun 23, 2026 21:41 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 GrantCommon Stock 99,116 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-279828 · ownership.xml · nonDerivative · entry 1

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,053,169

F1 · shares: Represents Restricted Stock Units ("RSUs") that vest in full on the earlier to occur of June 18, 2027 and one day prior to the date of the Company's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date. Each RSU represents the right to receive one share of common stock upon vesting.

Read SEC document
June 18, 2026 Filed Jun 23, 2026 20:25 UTC GeneDx Holdings Corp. WGS · Entity 1634 Exercise / conversionRestricted Stock Unit · Derivative 3,576 $0.00 $0.00
Disclosure

SEC source: 0001534264-26-000002 · form4-06232026_080622.xml · derivative · entry 6

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,576 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F6 · derivative.exercise_date: The entire award vested or vests on the earlier of the: (i) date of the 2026 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

F6 · derivative.expiration_date: The entire award vested or vests on the earlier of the: (i) date of the 2026 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

Read SEC document
June 18, 2026 Filed Jun 23, 2026 20:25 UTC GeneDx Holdings Corp. WGS · Entity 1634 GrantRestricted Stock Unit · Derivative 4,248 $0.00 $0.00
Disclosure

SEC source: 0001534264-26-000002 · form4-06232026_080622.xml · derivative · entry 5

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,248

Underlying: Class A Common Stock · 4,248 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F5 · derivative.exercise_date: The entire award shall vest on the earlier of the (i) date of the 2027 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

F5 · derivative.expiration_date: The entire award shall vest on the earlier of the (i) date of the 2027 annual meeting of the Issuer's stockholders, or (ii) first anniversary of the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date. These RSUs do not have an expiration date; they either vest or are cancelled prior to the vesting date.

Read SEC document
June 18, 2026 Filed Jun 23, 2026 20:25 UTC GeneDx Holdings Corp. WGS · Entity 1634 Exercise / conversionClass A Common Stock 3,576 $0.00 $0.00
Disclosure

SEC source: 0001534264-26-000002 · form4-06232026_080622.xml · nonDerivative · entry 1

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,093

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

Read SEC document
June 05, 2026 Filed Jun 8, 2026 21:25 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseClass A Common Stock, par value $0.0001 per share 50,000 $52.86 $2,642,830.00
Disclosure

SEC source: 0000919574-26-003907 · ownership.xml · nonDerivative · entry 2

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,707,164

F1 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
June 04, 2026 Filed Jun 8, 2026 21:25 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseClass A Common Stock, par value $0.0001 per share 150,000 $56.44 $8,466,735.00
Disclosure

SEC source: 0000919574-26-003907 · ownership.xml · nonDerivative · entry 1

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,657,164

F1 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
May 21, 2026 Filed May 21, 2026 23:10 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 650,000 $23.70 $15,405,000.00
Disclosure

SEC source: 0000919574-26-003646 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 4,757,165

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Read SEC document
May 20, 2026 Filed May 20, 2026 23:45 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseClass A Common Stock, par value $0.0001 per share 140,000 $43.81 $6,132,854.00
Disclosure

SEC source: 0000919574-26-003627 · ownership.xml · nonDerivative · entry 3

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,507,164

F4 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $43.6287 to $44.3384. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
May 20, 2026 Filed May 21, 2026 23:10 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 250,000 $23.70 $5,925,000.00
Disclosure

SEC source: 0000919574-26-003646 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 5,407,165

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Read SEC document
May 19, 2026 Filed May 20, 2026 23:45 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseClass A Common Stock, par value $0.0001 per share 185,000 $42.60 $7,880,334.00
Disclosure

SEC source: 0000919574-26-003627 · ownership.xml · nonDerivative · entry 2

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,367,164

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $42.1118 to $42.6898. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
May 19, 2026 Filed May 21, 2026 23:10 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 300,000 $22.65 $6,795,000.00
Disclosure

SEC source: 0000919574-26-003646 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 5,657,165

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Read SEC document
May 18, 2026 Filed May 20, 2026 23:45 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseClass A Common Stock, par value $0.0001 per share 175,000 $42.55 $7,446,547.50
Disclosure

SEC source: 0000919574-26-003627 · ownership.xml · nonDerivative · entry 1

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,182,164

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $42.4573 to $42.9153. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
May 11, 2026 Filed May 12, 2026 00:43 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseCash Settled Swap · Derivative 50,000 Not disclosed Not disclosed
Disclosure

SEC source: 0000919574-26-002845 · ownership.xml · derivative · entry 3

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 850,000

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

F4 · derivative.exercise_price: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F4 · price: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F4 · derivative.exercise_date: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F4 · derivative.expiration_date: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 50,000 notional shares of the Issuer's Class A Common Stock, at a price of $39.6602 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F2 · ownership.nature: The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

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May 08, 2026 Filed May 12, 2026 00:43 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseCash Settled Swap · Derivative 300,000 Not disclosed Not disclosed
Disclosure

SEC source: 0000919574-26-002845 · ownership.xml · derivative · entry 2

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 800,000

Underlying: Class A Common Stock · 300,000 shares

Expires not disclosed

F3 · derivative.exercise_price: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F3 · price: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F3 · derivative.exercise_date: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F3 · derivative.expiration_date: The Master Fund has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 300,000 notional shares of the Issuer's Class A Common Stock, at a price of $41.0261 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F2 · ownership.nature: The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
May 07, 2026 Filed May 12, 2026 00:43 UTC GeneDx Holdings Corp. WGS · Entity 1634 PurchaseCash Settled Swap · Derivative 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0000919574-26-002845 · ownership.xml · derivative · entry 1

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 500,000

Underlying: Class A Common Stock · 500,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Casdin Partners Master Fund, L.P. (the "Master Fund") has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F1 · price: Casdin Partners Master Fund, L.P. (the "Master Fund") has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F1 · derivative.exercise_date: Casdin Partners Master Fund, L.P. (the "Master Fund") has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F1 · derivative.expiration_date: Casdin Partners Master Fund, L.P. (the "Master Fund") has entered into certain cash-settled swap agreements (the "Swap Agreements"), which represent economic exposure to an aggregate of 500,000 notional shares of the Issuer's Class A Common Stock, at a price of $38.1543 per share. The Swap Agreements provide the Master Fund with economic results that are comparable to the economic results of ownership but do not provide it with the power to vote or direct the voting or dispose of or direct the disposition of the securities that are referenced by the Swap Agreements.

F2 · ownership.nature: The Swap Agreements are owned directly by the Master Fund and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

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February 26, 2026 Filed Mar 3, 2026 01:02 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 GrantCommon Stock 52,991 $1.17 $61,999.47
Disclosure

SEC source: 0001193125-26-086197 · ownership.xml · nonDerivative · entry 1

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,954,053

F1 · shares: Represents Restricted Stock Units ("RSUs") that vest as to 25% on the last day of the last month of each fiscal quarter of 2026, subject to the Reporting Person's continued service through the applicable vesting date.

F2 · balance_after: The RSUs were issued to the Reporting Person, who elected to take RSUs in lieu of $62,000 in cash compensation for services as a board member.

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December 04, 2025 Filed Dec 5, 2025 01:59 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 150,000 $1.45 $217,020.00
Disclosure

SEC source: 0000919574-25-007243 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 72,100,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4331 to $1.4588. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
December 03, 2025 Filed Dec 5, 2025 01:59 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 75,000 $1.44 $108,037.50
Disclosure

SEC source: 0000919574-25-007243 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 71,950,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4403 to $1.4406. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
December 02, 2025 Filed Dec 5, 2025 01:59 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 125,000 $1.42 $177,512.50
Disclosure

SEC source: 0000919574-25-007243 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 71,875,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4050 to $1.4351. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 25, 2025 Filed Nov 26, 2025 21:58 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 7,550,000 $1.30 $9,838,405.00
Disclosure

SEC source: 0000919574-25-007187 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 71,750,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.30 to $1.3843. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 24, 2025 Filed Nov 26, 2025 21:58 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 150,000 $1.43 $214,875.00
Disclosure

SEC source: 0000919574-25-007187 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 64,200,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.4290 to $1.4396. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 20, 2025 Filed Nov 21, 2025 00:45 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 450,000 $1.30 $586,260.00
Disclosure

SEC source: 0000919574-25-007124 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 64,050,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2788 to $1.3500 . The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 19, 2025 Filed Nov 21, 2025 00:45 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 350,000 $1.28 $448,910.00
Disclosure

SEC source: 0000919574-25-007124 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 63,600,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2758 to $1.2870. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 18, 2025 Filed Nov 21, 2025 00:45 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 275,000 $1.23 $339,405.00
Disclosure

SEC source: 0000919574-25-007124 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 63,250,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2247 to $1.2421. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 17, 2025 Filed Nov 17, 2025 23:58 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 225,000 $1.22 $275,580.00
Disclosure

SEC source: 0000919574-25-007087 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 62,975,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2175 to $1.2299. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 14, 2025 Filed Nov 17, 2025 23:58 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 250,000 $1.24 $309,800.00
Disclosure

SEC source: 0000919574-25-007087 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 62,750,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2364 to $1.2434. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 13, 2025 Filed Nov 17, 2025 23:58 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 450,000 $1.20 $541,395.00
Disclosure

SEC source: 0000919574-25-007087 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 62,500,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1978 to $1.2098. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F4 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 12, 2025 Filed Nov 13, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 375,000 $1.19 $445,837.50
Disclosure

SEC source: 0000919574-25-006597 · ownership.xml · nonDerivative · entry 4

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 62,050,000

F4 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1865 to $1.1913. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F5 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 11, 2025 Filed Nov 13, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 300,000 $1.20 $358,800.00
Disclosure

SEC source: 0000919574-25-006597 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 61,675,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1881 to $1.2053. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F5 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 10, 2025 Filed Nov 13, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 275,000 $1.17 $321,915.00
Disclosure

SEC source: 0000919574-25-006597 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 61,375,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1688 to $1.1732. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F5 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
November 07, 2025 Filed Nov 13, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 225,000 $1.12 $252,765.00
Disclosure

SEC source: 0000919574-25-006597 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 61,100,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.1153 to $1.1321. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F5 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
October 15, 2025 Filed Oct 17, 2025 23:55 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 750,000 $28.55 $21,410,325.00
Disclosure

SEC source: 0000919574-25-006180 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · Footonote

Disclosed balance after: 5,957,165

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $28.50 to $28.8354. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Read SEC document
September 09, 2025 Filed Sep 12, 2025 01:03 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 100,000 $1.29 $128,920.00
Disclosure

SEC source: 0000919574-25-005636 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 60,875,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2889 to $1.2895. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
September 04, 2025 Filed Sep 5, 2025 23:08 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 250,000 $1.28 $319,350.00
Disclosure

SEC source: 0000919574-25-005603 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 60,775,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2621 to $1.2930. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
September 03, 2025 Filed Sep 5, 2025 23:08 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 250,000 $1.27 $316,400.00
Disclosure

SEC source: 0000919574-25-005603 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 60,525,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2414 to $1.2765. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 26, 2025 Filed Aug 27, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 125,000 $1.26 $157,937.50
Disclosure

SEC source: 0000919574-25-005152 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 60,275,000

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 25, 2025 Filed Aug 27, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 200,000 $1.24 $248,180.00
Disclosure

SEC source: 0000919574-25-005152 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 60,150,000

F2 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2311 to $1.2475. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 22, 2025 Filed Aug 22, 2025 22:55 UTC GeneDx Holdings Corp. WGS · Entity 1634 SaleClass A Common Stock 500,000 $120.90 $60,451,950.00
Disclosure

SEC source: 0000919574-25-005084 · ownership.xml · nonDerivative · entry 1

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,007,164

F1 · ownership.nature: The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 22, 2025 Filed Aug 27, 2025 00:46 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock, $0.001 par value per share 200,000 $1.26 $252,680.00
Disclosure

SEC source: 0000919574-25-005152 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Casdin Eli · CIK 0001534264 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 59,950,000

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 15, 2025 Filed Aug 16, 2025 01:18 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock 150,000 $1.22 $183,210.00
Disclosure

SEC source: 0000919574-25-004979 · ownership.xml · nonDerivative · entry 3

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 59,750,000

F3 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.2179 to $1.2232. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 15, 2025 Filed Aug 22, 2025 01:10 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 500,000 $24.40 $12,200,000.00
Disclosure

SEC source: 0000919574-25-005051 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote.

Disclosed balance after: 6,707,165

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

Read SEC document
August 14, 2025 Filed Aug 16, 2025 01:18 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock 133,220 $1.21 $161,542.57
Disclosure

SEC source: 0000919574-25-004979 · ownership.xml · nonDerivative · entry 2

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 59,600,000

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

Read SEC document
August 13, 2025 Filed Aug 16, 2025 01:18 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 PurchaseCommon Stock 75,000 $1.31 $98,280.00
Disclosure

SEC source: 0000919574-25-004979 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · Director · 10% owner

Casdin Eli · CIK 0001534264 · Director · 10% owner

Casdin Capital, LLC · CIK 0001534261 · Director · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · Director · 10% owner

Casdin Private Growth Equity Fund II, L.P. · CIK 0001891102 · Director

Casdin Private Growth Equity Fund II GP, LLC · CIK 0001919480 · Director

Casdin Private Growth Equity Fund, L.P. · CIK 0001823061 · Director

CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC · CIK 0001864554 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 59,466,780

F1 · price: The price reported in Column 4 is a weighted average price. These shares were bought in multiple transactions within the range of $1.3075 to $1.3118. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares bought at each separate price within the range set forth in this footnote.

F2 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC (the "GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin and the GP.

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August 11, 2025 Filed Aug 13, 2025 22:43 UTC BIOLIFE SOLUTIONS INC BLFS · Entity 4614 SaleCommon Stock, par value $0.001 per share 500,000 $22.60 $11,300,000.00
Disclosure

SEC source: 0000919574-25-004702 · ownership.xml · nonDerivative · entry 1

Casdin Partners Master Fund, L.P. · CIK 0001534265 · 10% owner

Casdin Capital, LLC · CIK 0001534261 · 10% owner

Casdin Partners GP, LLC · CIK 0001534260 · 10% owner

Casdin Eli · CIK 0001534264 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 7,207,165

F1 · ownership.nature: The securities are owned directly by Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC ("Casdin Capital"), the investment adviser to the Master Fund, (ii) Casdin Partners GP, LLC ("Casdin GP"), the general partner of the Master Fund, and (iii) Eli Casdin, the managing member of Casdin Capital and Casdin GP.

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June 20, 2025 Filed Jun 24, 2025 22:57 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 GrantStock Option (Right to buy) · Derivative 125,660 $0.00 Strike: $1.05 $0.00
Disclosure

SEC source: 0000950170-25-089651 · ownership.xml · derivative · entry 5

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,660

Underlying: Common Stock · 125,660 shares

Expires 2035-06-20

F5 · derivative.exercise_date: The Option becomes exercisable in twelve equal monthly installments beginning on July 20, 2025, subject to the Reporting Person's continued service through the applicable vesting date.

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June 20, 2025 Filed Jun 24, 2025 22:57 UTC STANDARD BIOTOOLS INC. LAB · Entity 6116 GrantCommon Stock 94,592 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-089651 · ownership.xml · nonDerivative · entry 1

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,901,062

F1 · shares: Represents Restricted Stock Units ("RSUs") that vest in full on the earlier to occur of June 20, 2026 and one day prior to the date of the Company's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date. Each RSU represents the right to receive one share of common stock upon vesting.

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June 18, 2025 Filed Jun 23, 2025 21:50 UTC GeneDx Holdings Corp. WGS · Entity 1634 Exercise / conversionRestricted Stock Unit · Derivative 12,924 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-017994 · form4-06232025_090651.xml · derivative · entry 6

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 12,924 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F5 · derivative.exercise_date: The RSUs shall vest the earlier of (a) the date of the next annual meeting of the Issuer's shareholders following the grant date, and (b) the first anniversary of the grant date, subject to the Reporting Person continuing to provide services to the Issuer through each vesting date.

F5 · derivative.expiration_date: The RSUs shall vest the earlier of (a) the date of the next annual meeting of the Issuer's shareholders following the grant date, and (b) the first anniversary of the grant date, subject to the Reporting Person continuing to provide services to the Issuer through each vesting date.

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June 18, 2025 Filed Jun 23, 2025 21:50 UTC GeneDx Holdings Corp. WGS · Entity 1634 GrantRestricted Stock Unit · Derivative 3,576 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-017994 · form4-06232025_090651.xml · derivative · entry 5

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,576

Underlying: Class A Common Stock · 3,576 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

F5 · derivative.exercise_date: The RSUs shall vest the earlier of (a) the date of the next annual meeting of the Issuer's shareholders following the grant date, and (b) the first anniversary of the grant date, subject to the Reporting Person continuing to provide services to the Issuer through each vesting date.

F5 · derivative.expiration_date: The RSUs shall vest the earlier of (a) the date of the next annual meeting of the Issuer's shareholders following the grant date, and (b) the first anniversary of the grant date, subject to the Reporting Person continuing to provide services to the Issuer through each vesting date.

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June 18, 2025 Filed Jun 23, 2025 21:50 UTC GeneDx Holdings Corp. WGS · Entity 1634 Exercise / conversionClass A Common Stock 12,924 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-017994 · form4-06232025_090651.xml · nonDerivative · entry 1

Casdin Eli · CIK 0001534264 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,518

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement for no consideration.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.