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person · Reporting owner

Madigan Catherine

Disclosed activity across 2 companies

Tapewire entity
49881
SEC CIK
0001914577

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Hemab Therapeutics Holdings, Inc.COAG · Entity 4476Chief Medical OfficerJanuary 29, 2026May 04, 2026
Syndax Pharmaceuticals IncSNDX · Entity 4578Chief Medical OfficerFebruary 02, 2023February 03, 2023

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.

Hemab Therapeutics Holdings, Inc.

Report date January 29, 2026 · Filed May 04, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Warrants (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $6.00 · Expires 2036-01-28Direct145,134 Reported balance After 2026-01-29 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-01-29 · Grant · Acquired 145,134 · Balance 145,134

F1: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over four years, with 25% of the shares vesting on January 1, 2027 and the remaining shares vesting in equal monthly installments thereafter.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $18.00 · Expires 2036-04-29Direct49,016 Reported balance After 2026-04-30 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-04-30 · Grant · Acquired 49,016 · Balance 49,016

F2: This option was granted on April 30, 2026. The shares underlying the option will vest over four years in equal monthly installments from May 1, 2026 through May 1, 2030.

Filing footnotes · ownership attribution and instrument terms

F1: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over four years, with 25% of the shares vesting on January 1, 2027 and the remaining shares vesting in equal monthly installments thereafter.

F2: This option was granted on April 30, 2026. The shares underlying the option will vest over four years in equal monthly installments from May 1, 2026 through May 1, 2030.

Syndax Pharmaceuticals Inc

Report date February 02, 2023 · Filed February 03, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Options (Right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $28.55 · Expires 2033-02-02Direct110,000 Reported balance After 2023-02-02 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2023-02-02 · Grant · Acquired 110,000 · Balance 110,000

F1: 1/48th of the shares subject to the option shall vest monthly over a four-year period.

Filing footnotes · ownership attribution and instrument terms

F1: 1/48th of the shares subject to the option shall vest monthly over a four-year period.

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
April 30, 2026 Filed May 4, 2026 20:18 UTC Hemab Therapeutics Holdings, Inc. COAG · Entity 4476 GrantStock Option (Right to Buy) · Derivative 49,016 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0001193125-26-204041 · ownership.xml · derivative · entry 2

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,016

Underlying: Common Stock · 49,016 shares

Expires 2036-04-29

F2 · derivative.exercise_date: This option was granted on April 30, 2026. The shares underlying the option will vest over four years in equal monthly installments from May 1, 2026 through May 1, 2030.

Read SEC document
January 29, 2026 Filed May 4, 2026 20:18 UTC Hemab Therapeutics Holdings, Inc. COAG · Entity 4476 GrantWarrants (Right to Buy) · Derivative 145,134 $0.00 Strike: $6.00 $0.00
Disclosure

SEC source: 0001193125-26-204041 · ownership.xml · derivative · entry 1

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,134

Underlying: Common Stock · 145,134 shares

Expires 2036-01-28

F1 · derivative.exercise_date: The warrant was granted on January 29, 2026. The shares underlying the warrant vest over four years, with 25% of the shares vesting on January 1, 2027 and the remaining shares vesting in equal monthly installments thereafter.

Read SEC document
February 02, 2023 Filed Feb 3, 2023 22:01 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 GrantStock Options (Right to buy) · Derivative 110,000 $28.55 Strike: $28.55 $3,140,500.00
Disclosure

SEC source: 0001562180-23-000954 · primarydocument.xml · derivative · entry 1

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,000

Underlying: Common Stock · 110,000 shares

Expires 2033-02-02

F1 · derivative.exercise_date: 1/48th of the shares subject to the option shall vest monthly over a four-year period.

Read SEC document
March 01, 2022 Filed Mar 3, 2022 21:24 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 GrantStock Options (Right to buy) · Derivative 180,000 $16.06 Strike: $16.06 $2,890,800.00
Disclosure

SEC source: 0001562180-22-002258 · primarydocument.xml · derivative · entry 1

Madigan Catherine · CIK 0001914577 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2032-03-01

F1 · derivative.exercise_date: Twenty five percent (25%) of the total number of shares underlying the option shall vest on March 1, 2023, and one-thirty-sixth (1/36th) of the remaining shares underlying the option shall vest monthly thereafter on the last day of each month, subject to the reporting person's continuous service on the relevant vesting dates.

Read SEC document

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