Key facts
- This page summarizes Michael J. Urban's Form 3 filing for Werewolf Therapeutics, Inc. (HOWL).
- 0 reported transactions and 4 derivative rows are listed below.
- Accepted by SEC: 13 Mar 2026, 16:11.
Michael J. Urban - 13 Feb 2026 Form 3 Insider Report for Werewolf Therapeutics, Inc. (HOWL)
- Reporting relationship
- VP of Finance & Corp. Contr.
- Issuer ticker
- HOWL
- Reported as of
- 13 Feb 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Jonathan Owen, Attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Michael J. Urban filed Form 3 for Werewolf Therapeutics, Inc. (HOWL) on 13 Mar 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0002118666
Primary reporting owner
Urban Michael J.
- Relationship
- VP of Finance & Corp. Contr.
- Address
- C/O WEREWOLF THERAPEUTICS, INC., 200 TALCOTT AVENUE, 2ND FLOOR, WATERTOWN
- Signature
- /s/ Jonathan Owen, Attorney-in-fact
- Signature date
- 13 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
HOWL
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 5,284
- Date
- 13 Feb 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
HOWL
holding
Derivative
Stock Option (right to buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 13 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 52,500
- Exercise price
- $3.65
- Footnotes
- F1
HOWL
holding
Derivative
Stock Option (right to buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 13 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 29,365
- Exercise price
- $4.64
- Footnotes
- F2
HOWL
holding
Derivative
Stock Option (right to buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 13 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 10,000
- Exercise price
- $1.57
- Footnotes
- F3
HOWL
holding
Derivative
Stock Option (right to buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 13 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 54,800
- Exercise price
- $1.56
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
The option was granted on June 1, 2023. The shares underlying the option vested as to 25% on May 15, 2024, and the remainder vest in substantially equal monthly installments thereafter through May 15, 2027.
Footnote F2
The option was granted on January 2, 2024 with a Vesting Commencement Date of January 1, 2024. The shares underlying the option vest in substantially equal monthly installments over four years, commencing on the date that is one month following the Vesting Commencement Date and vesting monthly thereafter through January 1, 2028.
Footnote F3
The option was granted on December 19, 2024, and is fully vested.
Footnote F4
The option was granted on January 2, 2025 with a Vesting Commencement Date of January 1, 2025. The shares underlying the option vest in substantially equal monthly installments over four years, commencing on the date that is one month following the Vesting Commencement Date and vesting monthly thereafter through January 1, 2029.
SEC remarks
Exhibit List: Exhibit 24 - Power of Attorney