Werewolf Therapeutics, Inc. (HOWL)
Werewolf Therapeutics, Inc. (HOWL) Insider Trading
Directors, officers and holders of more than 10% of HOWL report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 197 transactions on file: 0 with code P, 50 with code S and 0 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 7, 2026 | EVNIN LUKE | Director | S Sale | 107,429 | $0.3100 | $33,303 |
| Jul 6, 2026 | EVNIN LUKE | Director | S Sale | 35,770 | $0.3200 | $11,446 |
| Jun 29, 2026 | EVNIN LUKE | Director | S Sale | 157,084 | $0.3000 | $47,125 |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 27,695 | $0.3500 | $9,693 |
| Jun 17, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 389,216 | $0.3500 | $136,226 |
| Jun 16, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 9,939 | $0.3700 | $3,677 |
| Jun 16, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 139,686 | $0.3700 | $51,684 |
| Jun 15, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 8,554 | $0.3900 | $3,336 |
| Jun 15, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 120,216 | $0.3900 | $46,884 |
| Jun 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 159,119 | $0.4000 | $63,648 |
| Jun 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 11,322 | $0.4000 | $4,529 |
| Jun 11, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 245,066 | $0.3800 | $93,125 |
| Jun 11, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 17,437 | $0.3800 | $6,626 |
| Jun 10, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 42,872 | $0.3700 | $15,863 |
| Jun 10, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 3,051 | $0.3700 | $1,129 |
| Jun 9, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 345,235 | $0.3700 | $127,737 |
| Jun 9, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 24,565 | $0.3700 | $9,089 |
| Jun 9, 2026 | EVNIN LUKE | Director | S Sale | 76,928 | $0.3700 | $28,463 |
| Jun 8, 2026 | EVNIN LUKE | Director | S Sale | 60,547 | $0.4000 | $24,219 |
| Jun 5, 2026 | EVNIN LUKE | Director | S Sale | 24,946 | $0.4000 | $9,978 |
| Jun 4, 2026 | EVNIN LUKE | Director | S Sale | 20,072 | $0.4400 | $8,832 |
| Jun 3, 2026 | EVNIN LUKE | Director | S Sale | 29,749 | $0.4200 | $12,495 |
| Jun 2, 2026 | EVNIN LUKE | Director | S Sale | 29,595 | $0.4500 | $13,318 |
| Jun 1, 2026 | EVNIN LUKE | Director | S Sale | 80,459 | $0.4700 | $37,816 |
| May 29, 2026 | EVNIN LUKE | Director | S Sale | 32,556 | $0.4500 | $14,650 |
| May 28, 2026 | EVNIN LUKE | Director | S Sale | 27,698 | $0.4600 | $12,741 |
| May 27, 2026 | EVNIN LUKE | Director | S Sale | 80,852 | $0.4800 | $38,809 |
| May 26, 2026 | EVNIN LUKE | Director | S Sale | 67,950 | $0.4700 | $31,937 |
| May 22, 2026 | EVNIN LUKE | Director | S Sale | 87,425 | $0.4500 | $39,341 |
| May 21, 2026 | EVNIN LUKE | Director | S Sale | 36,387 | $0.4200 | $15,283 |
| May 20, 2026 | EVNIN LUKE | Director | S Sale | 85,895 | $0.4300 | $36,935 |
| May 19, 2026 | EVNIN LUKE | Director | S Sale | 62,970 | $0.4500 | $28,337 |
| May 18, 2026 | EVNIN LUKE | Director | S Sale | 22,184 | $0.5000 | $11,092 |
| May 13, 2026 | EVNIN LUKE | Director | S Sale | 44,679 | $0.5400 | $24,127 |
| May 12, 2026 | EVNIN LUKE | Director | S Sale | 67,885 | $0.6400 | $43,446 |
| May 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 94,432 | $0.6400 | $60,436 |
| May 12, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 6,719 | $0.6400 | $4,300 |
| May 11, 2026 | EVNIN LUKE | Director | S Sale | 33,948 | $0.6700 | $22,745 |
| May 11, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 81,678 | $0.6700 | $54,724 |
| May 11, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 5,812 | $0.6700 | $3,894 |
| May 8, 2026 | EVNIN LUKE | Director | S Sale | 305,741 | $0.7000 | $214,019 |
| May 8, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 351,514 | $0.7100 | $249,575 |
| May 8, 2026 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | S Sale | 25,012 | $0.7100 | $17,759 |
| May 7, 2026 | EVNIN LUKE | Director | S Sale | 79,086 | $0.6300 | $49,824 |
| May 6, 2026 | EVNIN LUKE | Director | S Sale | 14,635 | $0.6600 | $9,659 |
| May 5, 2026 | EVNIN LUKE | Director | S Sale | 6,860 | $0.6900 | $4,733 |
| May 4, 2026 | EVNIN LUKE | Director | S Sale | 47,963 | $0.7200 | $34,533 |
| May 1, 2026 | EVNIN LUKE | Director | S Sale | 58,394 | $0.7300 | $42,628 |
| Apr 30, 2026 | EVNIN LUKE | Director | S Sale | 168,262 | $0.7200 | $121,149 |
| Apr 29, 2026 | EVNIN LUKE | Director | S Sale | 56,559 | $0.6900 | $39,026 |
The full Form 4 history is on the HOWL company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.