HOWL insider buying and SEC filings, explained
Werewolf Therapeutics, Inc. · CIK 1785530
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$964K
Planned sales (10b5-1)
$6.5M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jul 6–7, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 143,199 shares indirectly between Jul 6 and Jul 7 at about $0.3125 ($45K), marked as a 10b5-1 plan trade. Indirect holdings down 100% to 0 shares. | SEC filing Filed Jul 8, 2026 |
| Jun 29, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 157,084 shares indirectly at about $0.3000 ($47K), marked as a 10b5-1 plan trade. Indirect holdings down 52% to 143,199 shares. | SEC filing Filed Jun 29, 2026 |
| Jun 17, 2026 | Sale | Peter Kolchinsky (10% owner) sold 416,911 shares indirectly at about $0.3500 ($146K). Indirect holdings down 58% to 303,719 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 3 other reporting owners. | SEC filing Filed Jun 22, 2026 |
| Jun 12–16, 2026 | Sale | Peter Kolchinsky (10% owner) sold 448,836 shares indirectly between Jun 12 and Jun 16 at about $0.3871 ($174K). Indirect holdings down 58% to 331,414 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 3 other reporting owners. | SEC filing Filed Jun 16, 2026 |
| Jun 9–11, 2026 | Sale | Peter Kolchinsky (10% owner) sold 678,226 shares indirectly between Jun 9 and Jun 11 at about $0.3739 ($254K). Indirect holdings down 65% to 361,229 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 3 other reporting owners. | SEC filing Filed Jun 11, 2026 |
| Jun 9, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 76,928 shares indirectly at about $0.3700 ($28K), marked as a 10b5-1 plan trade. Indirect holdings down 20% to 300,283 shares. | SEC filing Filed Jun 10, 2026 |
| Jun 4–8, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 105,565 shares indirectly between Jun 4 and Jun 8 at about $0.4076 ($43K), marked as a 10b5-1 plan trade. Indirect holdings down 22% to 377,211 shares. | SEC filing Filed Jun 8, 2026 |
| Jun 1–3, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 139,803 shares indirectly between Jun 1 and Jun 3 at about $0.4551 ($64K), marked as a 10b5-1 plan trade. Indirect holdings down 22% to 482,776 shares. | SEC filing Filed Jun 3, 2026 |
| May 27–29, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 141,106 shares indirectly between May 27 and May 29 at about $0.4692 ($66K), marked as a 10b5-1 plan trade. Indirect holdings down 18% to 622,579 shares. | SEC filing Filed May 29, 2026 |
| May 21–26, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 191,762 shares indirectly between May 21 and May 26 at about $0.4514 ($87K), marked as a 10b5-1 plan trade. Indirect holdings down 20% to 763,685 shares. | SEC filing Filed May 26, 2026 |
| May 18–20, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 171,049 shares indirectly between May 18 and May 20 at about $0.4464 ($76K), marked as a 10b5-1 plan trade. Indirect holdings down 15% to 955,447 shares. | SEC filing Filed May 20, 2026 |
| May 13, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 44,679 shares indirectly at about $0.5400 ($24K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 1,126,496 shares. | SEC filing Filed May 13, 2026 |
| May 8–12, 2026 | Sale | Peter Kolchinsky (10% owner) sold 565,167 shares indirectly between May 8 and May 12 at about $0.6913 ($391K). Indirect holdings down 58% to 406,282 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 3 other reporting owners. | SEC filing Filed May 12, 2026 |
| May 8–12, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 407,574 shares indirectly between May 8 and May 12 at about $0.6875 ($280K), marked as a 10b5-1 plan trade. Indirect holdings down 26% to 1,171,175 shares. | SEC filing Filed May 12, 2026 |
| May 5–7, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 100,581 shares indirectly between May 5 and May 7 at about $0.6385 ($64K), marked as a 10b5-1 plan trade. Indirect holdings down 6% to 1,578,749 shares. | SEC filing Filed May 7, 2026 |
| Apr 30–May 4, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 274,619 shares indirectly between Apr 30 and May 4 at about $0.7221 ($198K), marked as a 10b5-1 plan trade. Indirect holdings down 14% to 1,679,330 shares. | SEC filing Filed May 4, 2026 |
| Apr 27–29, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 205,911 shares indirectly between Apr 27 and Apr 29 at about $0.7504 ($155K), marked as a 10b5-1 plan trade. Indirect holdings down 10% to 1,953,949 shares. | SEC filing Filed Apr 29, 2026 |
| Jan 16, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 38,782 shares indirectly at about $0.5400 ($21K), marked as a 10b5-1 plan trade. Indirect holdings down 2% to 2,159,860 shares. | SEC filing Filed Jan 20, 2026 |
| Jan 13–15, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 111,227 shares indirectly between Jan 13 and Jan 15 at about $0.5555 ($62K), marked as a 10b5-1 plan trade. Indirect holdings down 5% to 2,198,642 shares. | SEC filing Filed Jan 15, 2026 |
| Jan 8–12, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 91,374 shares indirectly between Jan 8 and Jan 12 at about $0.5859 ($54K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 2,309,869 shares. | SEC filing Filed Jan 12, 2026 |
| Jan 5–7, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 71,054 shares indirectly between Jan 5 and Jan 7 at about $0.6457 ($46K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 2,401,243 shares. | SEC filing Filed Jan 7, 2026 |
| Dec 30, 2025–Jan 2, 2026 | Planned (10b5-1) | Luke Evnin (Director) sold 78,377 shares indirectly between Dec 30, 2025 and Jan 2 at about $0.6179 ($48K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 2,472,297 shares. | SEC filing Filed Jan 2, 2026 |
| Dec 22–29, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 291,283 shares indirectly between Dec 22, 2025 and Dec 29, 2025 at about $0.6359 ($185K), marked as a 10b5-1 plan trade. Indirect holdings down 10% to 2,550,674 shares. | SEC filing Filed Dec 29, 2025 |
| Dec 15–17, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 48,171 shares indirectly between Dec 15, 2025 and Dec 17, 2025 at about $1.08 ($52K), marked as a 10b5-1 plan trade. Indirect holdings down 2% to 2,841,957 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 10–12, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 82,971 shares indirectly between Dec 10, 2025 and Dec 12, 2025 at about $1.07 ($89K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 2,890,128 shares. | SEC filing Filed Dec 12, 2025 |
| Dec 5–9, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 95,179 shares indirectly between Dec 5, 2025 and Dec 9, 2025 at about $0.9959 ($95K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 2,973,099 shares. | SEC filing Filed Dec 9, 2025 |
| Dec 2–4, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (Former 10% Owner) sold 199,732 shares indirectly between Dec 2, 2025 and Dec 4, 2025 at about $0.9176 ($183K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 4,784,111 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Dec 4, 2025 |
| Dec 2–4, 2025 | Planned (10b5-1) | Ansbert Gadicke (Former 10% Owner) sold 199,732 shares indirectly between Dec 2, 2025 and Dec 4, 2025 at about $0.9176 ($183K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 4,784,111 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Dec 4, 2025 |
| Dec 2–4, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 128,185 shares indirectly between Dec 2, 2025 and Dec 4, 2025 at about $0.9176 ($118K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 3,068,278 shares. | SEC filing Filed Dec 4, 2025 |
| Nov 26–Dec 1, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 141,927 shares indirectly between Nov 26, 2025 and Dec 1, 2025 at about $0.9643 ($137K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 4,983,843 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Dec 1, 2025 |
| Nov 26–Dec 1, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 141,927 shares indirectly between Nov 26, 2025 and Dec 1, 2025 at about $0.9643 ($137K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 4,983,843 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Dec 1, 2025 |
| Nov 26–Dec 1, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 91,088 shares indirectly between Nov 26, 2025 and Dec 1, 2025 at about $0.9643 ($88K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 3,196,463 shares. | SEC filing Filed Dec 1, 2025 |
| Nov 21–25, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 195,666 shares indirectly between Nov 21, 2025 and Nov 25, 2025 at about $0.9176 ($180K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,125,770 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 25, 2025 |
| Nov 21–25, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 195,666 shares indirectly between Nov 21, 2025 and Nov 25, 2025 at about $0.9176 ($180K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,125,770 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 25, 2025 |
| Nov 21–25, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 125,576 shares indirectly between Nov 21, 2025 and Nov 25, 2025 at about $0.9176 ($115K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 3,287,551 shares. | SEC filing Filed Nov 25, 2025 |
| Nov 18–20, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 160,103 shares indirectly between Nov 18, 2025 and Nov 20, 2025 at about $0.9239 ($148K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 5,321,436 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 20, 2025 |
| Nov 18–20, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 160,103 shares indirectly between Nov 18, 2025 and Nov 20, 2025 at about $0.9239 ($148K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 5,321,436 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 20, 2025 |
| Nov 18–20, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 102,753 shares indirectly between Nov 18, 2025 and Nov 20, 2025 at about $0.9239 ($95K), marked as a 10b5-1 plan trade. Indirect holdings down 3% to 3,413,127 shares. | SEC filing Filed Nov 20, 2025 |
| Nov 13–17, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 209,652 shares indirectly between Nov 13, 2025 and Nov 17, 2025 at about $0.9571 ($201K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,481,539 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 17, 2025 |
| Nov 13–17, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 209,652 shares indirectly between Nov 13, 2025 and Nov 17, 2025 at about $0.9571 ($201K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,481,539 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 17, 2025 |
| Nov 13–17, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 134,553 shares indirectly between Nov 13, 2025 and Nov 17, 2025 at about $0.9571 ($129K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 3,515,880 shares. | SEC filing Filed Nov 17, 2025 |
| Nov 7–12, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 213,529 shares indirectly between Nov 7, 2025 and Nov 12, 2025 at about $1.13 ($241K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,691,191 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 12, 2025 |
| Nov 7–12, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 213,529 shares indirectly between Nov 7, 2025 and Nov 12, 2025 at about $1.13 ($241K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,691,191 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 12, 2025 |
| Nov 7–12, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 137,041 shares indirectly between Nov 7, 2025 and Nov 12, 2025 at about $1.13 ($155K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 3,650,433 shares. | SEC filing Filed Nov 12, 2025 |
| Nov 4–6, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 242,890 shares indirectly between Nov 4, 2025 and Nov 6, 2025 at about $1.22 ($296K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,904,720 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 6, 2025 |
| Nov 4–6, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 242,890 shares indirectly between Nov 4, 2025 and Nov 6, 2025 at about $1.22 ($296K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 5,904,720 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 6, 2025 |
| Nov 4–6, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 155,885 shares indirectly between Nov 4, 2025 and Nov 6, 2025 at about $1.22 ($190K), marked as a 10b5-1 plan trade. Indirect holdings down 4% to 3,787,474 shares. | SEC filing Filed Nov 6, 2025 |
| Oct 30–Nov 3, 2025 | Planned (10b5-1) | MPM BioVentures 2014, L.P. (10% owner) sold 295,043 shares indirectly between Oct 30, 2025 and Nov 3, 2025 at about $1.33 ($392K), marked as a 10b5-1 plan trade. Indirect holdings down 5% to 6,147,610 shares. Filed jointly with 4 other reporting owners. | SEC filing Filed Nov 3, 2025 |
| Oct 30–Nov 3, 2025 | Planned (10b5-1) | Ansbert Gadicke (10% owner) sold 295,043 shares indirectly between Oct 30, 2025 and Nov 3, 2025 at about $1.33 ($392K), marked as a 10b5-1 plan trade. Indirect holdings down 5% to 6,147,610 shares. Filed jointly with 6 other reporting owners. | SEC filing Filed Nov 3, 2025 |
| Oct 30–Nov 3, 2025 | Planned (10b5-1) | Luke Evnin (Director) sold 189,356 shares indirectly between Oct 30, 2025 and Nov 3, 2025 at about $1.33 ($251K), marked as a 10b5-1 plan trade. Indirect holdings down 5% to 3,943,359 shares. | SEC filing Filed Nov 3, 2025 |
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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