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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
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionSeries B Preferred · Derivative 2,094,875 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · derivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 733,808 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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · price: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.exercise_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.expiration_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionSeries A-3 Preferred · Derivative 1,449,275 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · derivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 507,662 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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · price: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.exercise_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.expiration_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionSeries A-2 Preferred · Derivative 1,491,792 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 522,556 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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · price: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.exercise_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.expiration_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionSeries A-1 Preferred · Derivative 1,000,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 350,287 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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · price: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.exercise_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F1 · derivative.expiration_date: Each share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 275,903 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By TAS Partners, LLC

Disclosed balance after: 275,903

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

F2 · ownership.nature: Timothy Springer is the Managing Member of TAS Partners, LLC.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 PurchaseCommon Stock 71,428 $14.00 $999,992.00
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,273,519

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 299,632 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,202,091

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 733,808 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,902,459

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 507,662 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,168,651

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

Read SEC document
May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 522,556 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,660,989

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

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May 29, 2018 Filed Jun 1, 2018 01:41 UTC Scholar Rock Holding Corp SRRK · Entity 3721 ConversionCommon Stock 350,287 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-18-037312 · a4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,138,433

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 share of Preferred Stock automatically converted into Common Stock, for no payment or additional consideration, on a 2.8548-for-1 basis at the closing of the Issuer's initial public offering on May 29, 2018 and had no expiration date.

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November 14, 2017 Filed Nov 16, 2017 22:14 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 57,598 $9.27 $534,094.73
Disclosure

SEC source: 0001638599-17-001145 · doc4_5080.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 461,349

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $9.11 to $9.625, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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November 10, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 4,752 $9.03 $42,905.81
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 6

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 403,751

F5 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $8.83 to $9.24, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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November 10, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 21,586 $9.04 $195,191.41
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 5

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 398,999

F4 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $8.85 to $9.39, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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November 10, 2017 Filed Mar 29, 2019 20:15 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 4,752 $9.03 $42,905.81
Disclosure

SEC source: 0001055624-19-000002 · wf-form4_155389051295591.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By wife

Disclosed balance after: 9,752

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $8.83 to $9.24, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

F2 · ownership.direct: Reflects a correction to the Reporting Person's end of period holdings to reflect that 4,752 shares previously shown as held directly are held indirectly by the reporting person's wife.

F2 · ownership.nature: Reflects a correction to the Reporting Person's end of period holdings to reflect that 4,752 shares previously shown as held directly are held indirectly by the reporting person's wife.

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November 09, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 100 $9.78 $978.00
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By wife

Disclosed balance after: 5,000

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November 09, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 4,900 $9.33 $45,702.79
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 3

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By wife

Disclosed balance after: 4,900

F3 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $8.75 to $9.735, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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November 09, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 900 $9.74 $8,766.63
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 377,413

F2 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $9.72 to $9.79, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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November 09, 2017 Filed Nov 13, 2017 23:19 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 21,100 $9.33 $196,892.54
Disclosure

SEC source: 0001638599-17-001129 · doc4_5057.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 376,513

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $8.72 to $9.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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June 27, 2017 Filed Jun 28, 2017 20:36 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseWarrant (right to buy) · Derivative 79,130 $0.13 Strike: $17.71 $9,891.25
Disclosure

SEC source: 0001638599-17-000662 · doc4_4824.xml · derivative · entry 4

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,130

Underlying: Common Stock · 79,130 shares

Expires 2022-06-27

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June 27, 2017 Filed Jun 28, 2017 20:36 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 338,791 $17.71 $5,999,988.61
Disclosure

SEC source: 0001638599-17-000662 · doc4_4824.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 355,413

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June 16, 2017 Filed Jun 20, 2017 20:41 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 GrantStock Option (Right to Buy) · Derivative 6,410 $0.00 Strike: $17.47 $0.00
Disclosure

SEC source: 0001638599-17-000638 · doc4_4809.xml · derivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,410

Underlying: Common Stock · 6,410 shares

Expires 2027-06-15

F1 · derivative.exercise_date: The option vests in full on the earlier of June 16, 2018 or the day immediately prior to the company's 2018 annual meeting of shareholders.

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June 01, 2017 Filed Jun 2, 2017 20:05 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 518 $13.75 $7,122.50
Disclosure

SEC source: 0001638599-17-000527 · doc4_4755.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,622

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May 18, 2017 Filed May 19, 2017 20:06 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 4,860 $14.00 $68,040.00
Disclosure

SEC source: 0001144204-17-028639 · v467529_4.xml · nonDerivative · entry 2

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,104

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May 17, 2017 Filed May 19, 2017 20:06 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 PurchaseCommon Stock 11,244 $14.01 $157,483.46
Disclosure

SEC source: 0001144204-17-028639 · v467529_4.xml · nonDerivative · entry 1

SPRINGER TIMOTHY A · CIK 0001055624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,244

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $13.64 to $14.20, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, 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 ranges set forth in this footnote.

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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.