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SPRINGER TIMOTHY A

Disclosed activity across 4 companies

Tapewire entity
39790
SEC CIK
0001055624

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Cartesian Therapeutics, Inc.RNAC · Entity 6015Director · 10% ownerJanuary 02, 2026January 06, 2026
Tectonic Therapeutic, Inc.TECX · Entity 5328Director · 10% ownerJune 09, 2026June 10, 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.

Cartesian Therapeutics, Inc.

Report date January 02, 2026 · Filed January 06, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect8,646,285 Reported balance After 2026-01-02 transaction · row 1
1 source row

Row 1 · 2026-01-02 · Grant · Acquired 2,600 · Balance 8,646,285

F1: Each Restricted Stock Unit represents a contingent right to receive one share of common stock, which will vest in full on January 2, 2027.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $6.76 · Expires 2036-01-01Direct7,800 Reported balance After 2026-01-02 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-01-02 · Grant · Acquired 7,800 · Balance 7,800

Common StockSEC Table I · non-derivativeIndirectBy wife330,695 Reported balance Holding disclosure · report date 2026-01-02 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 330,695

Common StockSEC Table I · non-derivativeIndirectSee Footnote656,513 Reported balance Holding disclosure · report date 2026-01-02 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 656,513

F2: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Each Restricted Stock Unit represents a contingent right to receive one share of common stock, which will vest in full on January 2, 2027.

F2: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Tectonic Therapeutic, Inc.

Report date June 09, 2026 · Filed June 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $28.56 · Expires 2036-06-08Direct10,200 Reported balance After 2026-06-09 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-09 · Grant · Acquired 10,200 · Balance 10,200

F1: The option shall vest in full on the earliest of (i) June 9, 2027, (ii) the date of the Issuer's 2027 Annual Meeting of Stockholders, or (iii) a "Change in Control" (as defined in the Issuer's 2024 Equity Incentive Plan) of the Issuer, subject in each case, to the Reporting Person providing continuous service to the Issuer on each such date.

Filing footnotes · ownership attribution and instrument terms

F1: The option shall vest in full on the earliest of (i) June 9, 2027, (ii) the date of the Issuer's 2027 Annual Meeting of Stockholders, or (iii) a "Change in Control" (as defined in the Issuer's 2024 Equity Incentive Plan) of the Issuer, subject in each case, to the Reporting Person providing continuous service to the Issuer on each such date.

Past disclosures · reporting ended (2)

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

Morphic Holding, Inc.

Report date August 16, 2024 · Filed August 20, 2024

Section 16 reporting ended · disclosed 2024-08-20. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2024-08-16 transaction · row 1
1 source row

Row 1 · 2024-08-16 · Other · Disposed 4,608,052 · Balance 0

F1: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

Common StockSEC Table I · non-derivativeIndirectSee TAS Partners LLC0 Reported balance After 2024-08-16 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2024-08-16 · Other · Disposed 2,768,893 · Balance 0

F1: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

F3: The reporting person is the manager of TAS Partners LLC and has sole voting and dispositive power over such shares.

Common StockSEC Table I · non-derivativeIndirectBy Spouse0 Reported balance After 2024-08-16 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2024-08-16 · Other · Disposed 42,873 · Balance 0

F1: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $7.76 · Expires 2029-04-11Direct0 Reported balance After 2024-08-16 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2024-08-16 · Disposition to issuer · Disposed 4,288 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $15.00 · Expires 2029-06-26Direct0 Reported balance After 2024-08-16 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-08-16 · Disposition to issuer · Disposed 24,000 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $15.72 · Expires 2029-12-05Direct0 Reported balance After 2024-08-16 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2024-08-16 · Disposition to issuer · Disposed 90,000 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $22.96 · Expires 2030-06-18Direct0 Reported balance After 2024-08-16 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2024-08-16 · Disposition to issuer · Disposed 12,000 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $64.79 · Expires 2031-06-16Direct0 Reported balance After 2024-08-16 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2024-08-16 · Disposition to issuer · Disposed 9,996 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $24.49 · Expires 2032-06-08Direct0 Reported balance After 2024-08-16 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2024-08-16 · Disposition to issuer · Disposed 17,550 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $56.47 · Expires 2033-05-31Direct0 Reported balance After 2024-08-16 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2024-08-16 · Disposition to issuer · Disposed 12,535 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4: The Company Stock Option ("Option") is fully vested.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $30.52 · Expires 2034-06-03Direct0 Reported balance After 2024-08-16 transaction · row 11 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 11 · 2024-08-16 · Disposition to issuer · Disposed 23,168 · Balance 0

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6: The Option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

F3: The reporting person is the manager of TAS Partners LLC and has sole voting and dispositive power over such shares.

F4: The Company Stock Option ("Option") is fully vested.

F5: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6: The Option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

Scholar Rock Holding Corp

Report date December 10, 2019 · Filed December 12, 2019

Section 16 reporting ended · disclosed 2019-12-12. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect2,376,567 Reported balance After 2019-12-10 transaction · row 1
1 source row

Row 1 · 2019-12-10 · Gift · Disposed 296,000 · Balance 2,376,567

F1: Represents shares of the Company's common stock transfered as a gift for no consideration to the Institute of Protein Innovation, a not-for-profit research institution.

Common StockSEC Table I · non-derivativeIndirectBy TAS Partners, LLC580,855 Reported balance Holding disclosure · report date 2019-12-10 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 580,855

F2: Timothy Springer is the Managing Member of TAS Partners LLC.

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares of the Company's common stock transfered as a gift for no consideration to the Institute of Protein Innovation, a not-for-profit research institution.

F2: Timothy Springer is the Managing Member of TAS Partners LLC.

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
October 03, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 21,278 $21.17 $450,559.52
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 8

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,935,422

F7 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $20.78 to $21.77. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Read SEC document
October 03, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 50,489 $20.18 $1,018,878.12
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 7

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,914,144

F6 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $19.77 to $20.70. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

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October 03, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 10,249 $19.01 $194,859.11
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 6

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,863,655

F5 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $18.76 to $19.74. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Read SEC document
October 03, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 29,847 $18.25 $544,576.42
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 5

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,853,406

F4 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $17.76 to $18.75. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Read SEC document
October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherWarrant (Right to Buy) · Derivative 20,045 Not disclosed Strike: $46.50 Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · derivative · entry 16

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 20,045

Underlying: Common Stock · 20,045 shares

Expires 2027-04-11

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Read SEC document
October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherWarrant (Right to Buy) · Derivative 113,587 Not disclosed Strike: $46.50 Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · derivative · entry 15

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,587

Underlying: Common Stock · 113,587 shares

Expires 2027-04-11

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Read SEC document
October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherWarrant (Right to Buy) · Derivative 133,632 Not disclosed Strike: $46.50 Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · derivative · entry 14

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 33,408

Underlying: Common Stock · 133,632 shares

Expires 2027-04-11

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F3 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherCommon Stock 317,879 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 330,695

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherCommon Stock 2,119,193 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 529,798

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F3 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Read SEC document
October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 5,514 $17.38 $95,821.74
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,823,559

F2 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $17.17 to $17.50. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

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October 02, 2024 Filed Oct 4, 2024 21:58 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 OtherCommon Stock 1,801,314 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000115 · wk-form4_1728079086.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,818,045

F1 · kind: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

F1 · price: Pro rata distribution for no consideration from TAS Partners LLC to the reporting person or the reporting person's spouse, as the case may be. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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September 26, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 PurchaseCommon Stock 2,400 $30.87 $74,088.00
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 7

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,796,764

F7 · price: The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $30.80 to $30.90 per share, inclusive. The Reporting Person 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 purchased at each separate price within the range set forth in this footnote.

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September 26, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 PurchaseCommon Stock 4,070 $30.10 $122,507.00
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 6

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,794,364

F6 · price: The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $29.75 to $30.63 per share, inclusive. The Reporting Person 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 purchased at each separate price within the range set forth in this footnote.

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September 26, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 PurchaseCommon Stock 18,999 $29.13 $553,440.87
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 5

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,790,294

F5 · price: The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $28.69 to $29.68 per share, inclusive. The Reporting Person 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 purchased at each separate price within the range set forth in this footnote.

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September 26, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 PurchaseCommon Stock 24,531 $28.16 $690,792.96
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,771,295

F4 · price: The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $27.68 to $28.66 per share, inclusive. The Reporting Person 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 purchased at each separate price within the range set forth in this footnote.

Read SEC document
September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 1,307 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 6

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 12,816

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

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September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionSeries B Non-Voting Convertible Preferred Stock 1,307 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 5

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 0

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

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September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 721,361 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,648,991

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

F2 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Read SEC document
September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionSeries B Non-Voting Convertible Preferred Stock 721,361 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

F2 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

Read SEC document
September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 1,636,832 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,016,731

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

Read SEC document
September 25, 2024 Filed Sep 27, 2024 20:13 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionSeries B Non-Voting Convertible Preferred Stock 1,636,832 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000112 · wk-form4_1727468009.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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: On September 20, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved the conversion of the issuer's Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") into shares of common stock. On September 25, 2024, the conversion of the majority of the shares of Series B Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series B Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the shares of Series B Preferred Stock beneficially owned by the reporting person converted into shares of common stock.

Read SEC document
September 24, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 OtherCommon Stock 186,134 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 186,134

F3 · kind: Represents the acquisition of the shares from TAS, as more specifically described in Footnote (1) herein.

Read SEC document
September 24, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 OtherCommon Stock 1,054,759 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,746,764

F3 · kind: Represents the acquisition of the shares from TAS, as more specifically described in Footnote (1) herein.

Read SEC document
September 24, 2024 Filed Sep 26, 2024 22:15 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 OtherCommon Stock 1,240,893 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-024003 · form4-09262024_100948.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By LLC

Disclosed balance after: 310,223

F1 · kind: Represents a distribution in kind, for no additional consideration, by TAS Partners, LLC ("TAS") to the Reporting Person and his spouse.

F2 · ownership.nature: These shares are held by TAS. The Reporting Person is the sole managing member of TAS and, as such, has sole voting and dispositive power over the shares held by TAS. The Reporting Person disclaims beneficial ownership of the shares held by TAS except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

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August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 23,168 Not disclosed Strike: $30.52 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 11

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,168 shares

Expires 2034-06-03

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 12,535 Not disclosed Strike: $56.47 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 10

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,535 shares

Expires 2033-05-31

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 17,550 Not disclosed Strike: $24.49 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 9

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,550 shares

Expires 2032-06-08

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 9,996 Not disclosed Strike: $64.79 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 8

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,996 shares

Expires 2031-06-16

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 12,000 Not disclosed Strike: $22.96 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 7

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,000 shares

Expires 2030-06-18

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 90,000 Not disclosed Strike: $15.72 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 6

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 90,000 shares

Expires 2029-12-05

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 24,000 Not disclosed Strike: $15.00 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 5

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 24,000 shares

Expires 2029-06-26

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 Disposition to issuerStock Option (Right to Buy) · Derivative 4,288 Not disclosed Strike: $7.76 Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · derivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,288 shares

Expires 2029-04-11

F5 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F4 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 OtherCommon Stock 42,873 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 OtherCommon Stock 2,768,893 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See TAS Partners LLC

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

F3 · ownership.nature: The reporting person is the manager of TAS Partners LLC and has sole voting and dispositive power over such shares.

Read SEC document
August 16, 2024 Filed Aug 20, 2024 23:10 UTC Morphic Holding, Inc. MORF · Entity 88114 OtherCommon Stock 4,608,052 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-021765 · form4-08202024_110817.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

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August 12, 2024 Filed Aug 14, 2024 20:43 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 8,016 $12.72 $101,967.53
Disclosure

SEC source: 0001453687-24-000106 · wk-form4_1723668232.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 11,509

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $12.48 to $13.05. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

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July 02, 2024 Filed Jul 5, 2024 20:02 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 GrantSeries B Non-Voting Convertible Preferred Stock 1,307 $20.00 $26,140.00
Disclosure

SEC source: 0001453687-24-000095 · wk-form4_1720209722.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife

Disclosed balance after: 1,307

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July 02, 2024 Filed Jul 5, 2024 20:02 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 GrantSeries B Non-Voting Convertible Preferred Stock 721,361 $20.00 $14,427,220.00
Disclosure

SEC source: 0001453687-24-000095 · wk-form4_1720209722.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 721,361

F1 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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July 02, 2024 Filed Jul 5, 2024 20:02 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 GrantSeries B Non-Voting Convertible Preferred Stock 1,636,832 $20.00 $32,736,640.00
Disclosure

SEC source: 0001453687-24-000095 · wk-form4_1720209722.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,636,832

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June 20, 2024 Filed Jun 24, 2024 20:30 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 GrantStock Option (Right to Buy) · Derivative 11,760 $0.00 Strike: $16.80 $0.00
Disclosure

SEC source: 0001415889-24-017984 · form4-06242024_080610.xml · derivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,760

Underlying: Common Stock · 11,760 shares

Expires 2034-06-19

F4 · derivative.exercise_date: 1/3rd of the shares subject to the option will vest on June 20, 2025, and the balance will vest in equal monthly installments thereafter over the next 24 months, subject in each case to the continuous service of the Reporting Person to the Issuer through the applicable vesting date.

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June 20, 2024 Filed Jun 24, 2024 20:30 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 GrantCommon Stock 1,551,116 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-017984 · form4-06242024_080610.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By LLC

Disclosed balance after: 1,551,116

F2 · price: Received in exchange for 2,902,429 shares of common stock of Tectonic on the same terms and conditions as set forth in footnote (1) herein.

F3 · ownership.nature: These shares are held by TAS Partners, LLC ("TAS"). The Reporting Person is the sole managing member of TAS and, as such, has sole voting and dispositive power over the shares held by TAS. The Reporting Person disclaims beneficial ownership of the shares held by TAS except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

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June 20, 2024 Filed Jun 24, 2024 20:30 UTC Tectonic Therapeutic, Inc. TECX · Entity 5328 GrantCommon Stock 2,692,005 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-24-017984 · form4-06242024_080610.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,692,005

F1 · price: Received in exchange for 5,037,245 shares of common stock of Tectonic Therapeutic, Inc., a Delaware corporation ("Tectonic"), pursuant to an Agreement and Plan of Merger dated as of January 30, 2024 (the "Merger Agreement") by and among AVROBIO, Inc., a Delaware corporation ("AVROBIO"), Tectonic and Alpine Merger Subsidiary, Inc., a direct, wholly owned subsidiary of AVROBIO (the "Merger Sub"). Under the terms of the Merger Agreement, on June 20, 2024, Merger Sub merged with and into Tectonic (the "Merger"), with Tectonic surviving the Merger as a wholly owned subsidiary of AVROBIO. Upon the closing of the Merger, each share of Tectonic common stock was converted into the right to receive 0.534419990 shares of the Issuer's common stock, after giving effect to a reverse stock split of the Issuer's common stock of 1-for-12. Subsequent to the Merger, the name of the Issuer was changed from AVROBIO, Inc. to Tectonic Therapeutic, Inc.

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June 04, 2024 Filed Jun 5, 2024 23:14 UTC Morphic Holding, Inc. MORF · Entity 88114 GrantCommon Stock · Derivative 23,168 $0.00 Strike: $30.52 $0.00
Disclosure

SEC source: 0001415889-24-015670 · form4-06052024_110616.xml · derivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,168

Underlying: Common Stock · 23,168 shares

Expires 2034-06-03

F1 · derivative.exercise_date: The option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

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April 08, 2024 Filed Apr 11, 2024 01:40 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 826,169 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000063 · wk-form4_1712799609.xml · nonDerivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,927,630

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: On March 27, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved a 1-for-30 reverse stock split (the "Reverse Stock Split") of the issuer's common stock ("Common Stock") and the conversion of the issuer's Series A Non-Voting Convertible Preferred Stock ("Series A Preferred Stock") into shares of Common Stock. On April 8, 2024, the conversion of the majority of the shares of Series A Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series A Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the reporting person's shares of Series A Preferred Stock converted into shares of Common Stock.

F2 · balance_after: On April 4, 2024, the issuer effected the "Reverse Stock Split". The amount of securities reported on this Form 4 has been adjusted to reflect the Reverse Stock Split.

F3 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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April 08, 2024 Filed Apr 11, 2024 01:40 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionSeries A Non-Voting Convertible Preferred Stock 24,785.081 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000063 · wk-form4_1712799609.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

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: On March 27, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved a 1-for-30 reverse stock split (the "Reverse Stock Split") of the issuer's common stock ("Common Stock") and the conversion of the issuer's Series A Non-Voting Convertible Preferred Stock ("Series A Preferred Stock") into shares of Common Stock. On April 8, 2024, the conversion of the majority of the shares of Series A Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series A Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the reporting person's shares of Series A Preferred Stock converted into shares of Common Stock.

F3 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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April 08, 2024 Filed Apr 11, 2024 01:40 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 4,130,846 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000063 · wk-form4_1712799609.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,379,899

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: On March 27, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved a 1-for-30 reverse stock split (the "Reverse Stock Split") of the issuer's common stock ("Common Stock") and the conversion of the issuer's Series A Non-Voting Convertible Preferred Stock ("Series A Preferred Stock") into shares of Common Stock. On April 8, 2024, the conversion of the majority of the shares of Series A Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series A Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the reporting person's shares of Series A Preferred Stock converted into shares of Common Stock.

F2 · balance_after: On April 4, 2024, the issuer effected the "Reverse Stock Split". The amount of securities reported on this Form 4 has been adjusted to reflect the Reverse Stock Split.

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April 08, 2024 Filed Apr 11, 2024 01:40 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionSeries A Non-Voting Convertible Preferred Stock 123,925.407 Not disclosed Not disclosed
Disclosure

SEC source: 0001453687-24-000063 · wk-form4_1712799609.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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: On March 27, 2024, the issuer held a special meeting of stockholders (the "Special Meeting"). At the Special Meeting, the stockholders of the issuer approved a 1-for-30 reverse stock split (the "Reverse Stock Split") of the issuer's common stock ("Common Stock") and the conversion of the issuer's Series A Non-Voting Convertible Preferred Stock ("Series A Preferred Stock") into shares of Common Stock. On April 8, 2024, the conversion of the majority of the shares of Series A Preferred Stock occurred automatically (the "Automatic Conversion"). The remaining shares of Series A Preferred Stock remain subject to certain beneficial ownership limitations described in the issuer's filings with the Securities and Exchange Commission. At the time of the Automatic Conversion, all of the reporting person's shares of Series A Preferred Stock converted into shares of Common Stock.

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March 26, 2024 Filed Mar 26, 2024 20:32 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionWarrant (Right to Buy) · Derivative 1,970,443 $0.00 Strike: $1.46 $0.00
Disclosure

SEC source: 0001453687-24-000045 · wk-form4_1711485128.xml · derivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,970,443 shares

Expires 2024-12-23

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 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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March 26, 2024 Filed Mar 26, 2024 20:32 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 Exercise / conversionCommon Stock 1,970,443 $1.46 $2,876,846.78
Disclosure

SEC source: 0001453687-24-000045 · wk-form4_1711485128.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 33,043,849

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 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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March 18, 2024 Filed Mar 20, 2024 21:09 UTC Cartesian Therapeutics, Inc. RNAC · Entity 6015 PurchaseCommon Stock 19,044 $0.60 $11,397.83
Disclosure

SEC source: 0001453687-24-000043 · wk-form4_1710968926.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 31,073,406

F1 · price: The price reported is a weighted average price. The shares were purchased in multiple transactions at per share prices ranging from $0.575 to $0.60. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2 · ownership.nature: Held by TAS Partners LLC. The reporting person is the managing member of TAS Partners LLC. The reporting person disclaims beneficial ownership of the securities held by TAS Partners LLC except to the extent of his pecuniary interest therein, if any.

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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.