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Werewolf Therapeutics, Inc.

HOWL
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001785530

In the last 90 days, Werewolf Therapeutics, Inc. insiders filed 0 open-market purchases and 2 sales; 45 institutions reported holding it in 13F filings for Q2 2026, worth $3.91M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Werewolf Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
2 filings
1 insider, $91.9K in total
Insiders trading
1
Net value
−$91.9K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Werewolf Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Werewolf Therapeutics, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Evnin LukeDirector0IndirectJul 8, 202631
RA Capital Healthcare Fund LP10% Owner303,719IndirectJun 22, 20264
Ra Capital Management, L.P.10% Owner303,719IndirectJun 22, 20264
Kolchinsky Peter10% Owner303,719IndirectJun 22, 20264
Shah Rajeev M.10% Owner303,719IndirectJun 22, 20264
MPM BioVentures 2014, L.P.Other: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM BioVentures 2014 (B), L.P.Other: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM Asset Management Investors BV2014 LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM BioVentures 2014 LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM BioVentures 2014 GP LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
Gadicke AnsbertOther: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM Asset Management LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM BioImpact LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
UBS Oncology Impact Fund L.P.Other: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM Oncology Innovations Fund LPOther: Former 10% Owner4,784,111IndirectDec 4, 20259
Oncology Impact Fund (Cayman) Management L.P.Other: Former 10% Owner4,784,111IndirectDec 4, 20259
MPM Oncology Innovations Fund GP LLCOther: Former 10% Owner4,784,111IndirectDec 4, 20259
Sherman Michael A.Director–Jun 13, 20250
Morrison BriggsDirector–Jun 13, 20250
Lazarus AlonDirector–Jun 13, 20250
Chatterjee MeetaDirector–Jun 13, 20250
Singhal Anil K.Director–Jun 13, 20250
Atkins Michael B.Director–Jun 13, 20250
RA Capital Nexus Fund II, L.P.Director, 10% Owner6,237,482IndirectMay 14, 20250
Bloom Steven H.Chief Business Officer–May 2, 20250
Foley Todd10% Owner3,208,793IndirectApr 30, 20250
Hicklin Daniel JSee Remarks–Jan 6, 20250
Trost Timothy W.Chief Financial Officer–Jan 6, 20250
Isaacs RandiChief Medical Officer–Jan 6, 20250
Lubman EllenChief Business Officer–Jan 6, 20250
Karunatilake ChulaniChief Technology Officer–Jan 6, 20250
DiRocco DerekDirector–May 24, 20240
Seidel-Dugan CynthiaChief Scientific Officer164,888Jan 4, 20240
Leonard ReidChief Operating Officer14,102Jan 9, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 8, 2026 (view filing)5:34 PM ETJul 6-72 daysEvnin LukeDirectorSSale−143.2K$0.3125−$44.7K−100.0%0 after2 lots10b5-1
Jun 29, 2026 (view filing)7:07 PM ETJun 29Same dayEvnin LukeDirectorSSale−157.1K$0.30−$47.1K−52.3%143.2K after10b5-1
Jun 22, 2026 (view filing)6:59 PM ETJun 175 daysRA Capital Healthcare Fund LP and 3 others10% OwnerSSale−416.9K$0.35−$145.9K−57.9%303.7K after2 lots
Jun 16, 2026 (view filing)6:01 PM ETJun 12-164 daysRA Capital Healthcare Fund LP and 3 others10% OwnerSSale−448.8K$0.3871−$173.8K−57.5%331.4K after6 lots
Jun 11, 2026 (view filing)8:13 PM ETJun 9-112 daysRA Capital Healthcare Fund LP and 3 others10% OwnerSSale−678.2K$0.3739−$253.6K−65.2%361.2K after6 lots
Jun 10, 2026 (view filing)5:20 PM ETJun 91 dayEvnin LukeDirectorSSale−76.9K$0.37−$28.5K−20.4%300.3K after10b5-1
Jun 8, 2026 (view filing)6:13 PM ETJun 4-84 daysEvnin LukeDirectorSSale−105.6K$0.4076−$43.0K−21.9%377.2K after3 lots10b5-1
Jun 3, 2026 (view filing)6:42 PM ETJun 1-32 daysEvnin LukeDirectorSSale−139.8K$0.4551−$63.6K−22.5%482.8K after3 lots10b5-1
May 29, 2026 (view filing)6:51 PM ETMay 27-292 daysEvnin LukeDirectorSSale−141.1K$0.4692−$66.2K−18.5%622.6K after3 lots10b5-1
May 26, 2026 (view filing)6:18 PM ETMay 21-265 daysEvnin LukeDirectorSSale−191.8K$0.4514−$86.6K−20.1%763.7K after3 lots10b5-1
May 20, 2026 (view filing)6:08 PM ETMay 18-202 daysEvnin LukeDirectorSSale−171.0K$0.4464−$76.4K−15.2%955.4K after3 lots10b5-1
May 13, 2026 (view filing)May 13Same dayEvnin LukeDirectorSSale−44.7K$0.54−$24.1K−3.8%1.13M after10b5-1
May 12, 2026 (view filing)6:26 PM ETMay 8-124 daysRA Capital Healthcare Fund LP and 3 others10% OwnerSSale−565.2K$0.6913−$390.7K−58.2%406.3K after6 lots
May 12, 2026 (view filing)May 8-124 daysEvnin LukeDirectorSSale−407.6K$0.6875−$280.2K−25.8%1.17M after3 lots10b5-1
May 7, 2026 (view filing)May 5-72 daysEvnin LukeDirectorSSale−100.6K$0.6385−$64.2K−6.0%1.58M after3 lots10b5-1
May 4, 2026 (view filing)Apr 30-May 44 daysEvnin LukeDirectorSSale−274.6K$0.7221−$198.3K−14.1%1.68M after3 lots10b5-1
Apr 29, 2026 (view filing)Apr 27-292 daysEvnin LukeDirectorSSale−205.9K$0.7504−$154.5K−9.5%1.95M after3 lots10b5-1
Jan 20, 2026 (view filing)Jan 164 daysEvnin LukeDirectorSSale−38.8K$0.54−$20.9K−1.8%2.16M after10b5-1
Jan 15, 2026 (view filing)Jan 13-152 daysEvnin LukeDirectorSSale−111.2K$0.5555−$61.8K−4.8%2.20M after3 lots10b5-1
Jan 12, 2026 (view filing)Jan 8-124 daysEvnin LukeDirectorSSale−91.4K$0.5859−$53.5K−3.8%2.31M after3 lots10b5-1
Jan 7, 2026 (view filing)Jan 5-72 daysEvnin LukeDirectorSSale−71.1K$0.6457−$45.9K−2.9%2.40M after3 lots10b5-1
Jan 2, 2026 (view filing)Dec 30, 2025-Jan 2, 20263 daysEvnin LukeDirectorSSale−78.4K$0.6179−$48.4K−3.1%2.47M after3 lots10b5-1
Dec 29, 2025 (view filing)Dec 22-297 daysEvnin LukeDirectorSSale−291.3K$0.6359−$185.2K−10.2%2.55M after5 lots10b5-1
Dec 17, 2025 (view filing)Dec 15-172 daysEvnin LukeDirectorSSale−48.2K$1.08−$52.0K−1.7%2.84M after3 lots10b5-1
Dec 12, 2025 (view filing)Dec 10-122 daysEvnin LukeDirectorSSale−83.0K$1.07−$88.6K−2.8%2.89M after3 lots10b5-1
Dec 9, 2025 (view filing)Dec 5-94 daysEvnin LukeDirectorSSale−95.2K$0.9959−$94.8K−3.1%2.97M after3 lots10b5-1
Dec 4, 2025 (view filing)6:19 PM ETDec 2-42 daysMPM BioVentures 2014, L.P. and 4 othersOther: Former 10% OwnerSSale−199.7K$0.9176−$183.3K−4.0%4.78M after3 lots10b5-1Duplicate filing
Dec 4, 2025 (view filing)6:18 PM ETDec 2-42 daysGadicke Ansbert and 6 othersOther: Former 10% OwnerSSale−199.7K$0.9176−$183.3K−4.0%4.78M after3 lots10b5-1
Dec 4, 2025 (view filing)Dec 2-42 daysEvnin LukeDirectorSSale−128.2K$0.9176−$117.6K−4.0%3.07M after3 lots10b5-1
Dec 1, 2025 (view filing)6:12 PM ETNov 26-Dec 15 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−141.9K$0.9643−$136.9K−2.8%4.98M after3 lots10b5-1Duplicate filing
Dec 1, 2025 (view filing)6:11 PM ETNov 26-Dec 15 daysGadicke Ansbert and 6 others10% OwnerSSale−141.9K$0.9643−$136.9K−2.8%4.98M after3 lots10b5-1
Dec 1, 2025 (view filing)Nov 26-Dec 15 daysEvnin LukeDirectorSSale−91.1K$0.9643−$87.8K−2.8%3.20M after3 lots10b5-1
Nov 25, 2025 (view filing)6:04 PM ETNov 21-254 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−195.7K$0.9176−$179.6K−3.7%5.13M after3 lots10b5-1Duplicate filing
Nov 25, 2025 (view filing)6:03 PM ETNov 21-254 daysGadicke Ansbert and 6 others10% OwnerSSale−195.7K$0.9176−$179.6K−3.7%5.13M after3 lots10b5-1
Nov 25, 2025 (view filing)Nov 21-254 daysEvnin LukeDirectorSSale−125.6K$0.9176−$115.2K−3.7%3.29M after3 lots10b5-1
Nov 20, 2025 (view filing)5:51 PM ETNov 18-202 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−160.1K$0.9239−$147.9K−2.9%5.32M after3 lots10b5-1Duplicate filing
Nov 20, 2025 (view filing)5:50 PM ETNov 18-202 daysGadicke Ansbert and 6 others10% OwnerSSale−160.1K$0.9239−$147.9K−2.9%5.32M after3 lots10b5-1
Nov 20, 2025 (view filing)Nov 18-202 daysEvnin LukeDirectorSSale−102.8K$0.9239−$94.9K−2.9%3.41M after3 lots10b5-1
Nov 17, 2025 (view filing)7:22 PM ETNov 13-174 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−209.7K$0.9571−$200.7K−3.7%5.48M after3 lots10b5-1Duplicate filing
Nov 17, 2025 (view filing)7:20 PM ETNov 13-174 daysGadicke Ansbert and 6 others10% OwnerSSale−209.7K$0.9571−$200.7K−3.7%5.48M after3 lots10b5-1
Nov 17, 2025 (view filing)Nov 13-174 daysEvnin LukeDirectorSSale−134.6K$0.9571−$128.8K−3.7%3.52M after3 lots10b5-1
Nov 12, 2025 (view filing)7:32 PM ETNov 7-125 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−213.5K$1.13−$241.3K−3.6%5.69M after4 lots10b5-1Duplicate filing
Nov 12, 2025 (view filing)7:31 PM ETNov 7-125 daysGadicke Ansbert and 6 others10% OwnerSSale−213.5K$1.13−$241.3K−3.6%5.69M after4 lots10b5-1
Nov 12, 2025 (view filing)Nov 7-125 daysEvnin LukeDirectorSSale−137.0K$1.13−$154.9K−3.6%3.65M after4 lots10b5-1
Nov 6, 2025 (view filing)7:41 PM ETNov 4-62 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−242.9K$1.22−$295.8K−4.0%5.90M after3 lots10b5-1Duplicate filing
Nov 6, 2025 (view filing)7:40 PM ETNov 4-62 daysGadicke Ansbert and 6 others10% OwnerSSale−242.9K$1.22−$295.8K−4.0%5.90M after3 lots10b5-1
Nov 6, 2025 (view filing)Nov 4-62 daysEvnin LukeDirectorSSale−155.9K$1.22−$189.8K−4.0%3.79M after3 lots10b5-1
Nov 3, 2025 (view filing)7:08 PM ETOct 30-Nov 34 daysMPM BioVentures 2014, L.P. and 4 others10% OwnerSSale−295.0K$1.33−$391.6K−4.6%6.15M after3 lots10b5-1Duplicate filing
Nov 3, 2025 (view filing)7:07 PM ETOct 30-Nov 34 daysGadicke Ansbert and 6 others10% OwnerSSale−295.0K$1.33−$391.6K−4.6%6.15M after3 lots10b5-1
Nov 3, 2025 (view filing)Oct 30-Nov 34 daysEvnin LukeDirectorSSale−189.4K$1.33−$251.3K−4.6%3.94M after3 lots10b5-1