Werewolf Therapeutics Inc

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Werewolf Therapeutics Inc
TickerHOWL
CIK #0001785530
CUSIP95075A107
SectorLife Sciences - Pharmaceutical Preparations
Address1030 Massachusetts Avenue Suite 210, Cambridge, MA 02138
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Werewolf Therapeutics Inc 2021-01-07 72.1 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001785530] 10-K
[0001785530] 10-Q
[0001785530] 3
[0001785530] 4
[0001785530] 8-K
[0001785530] D
[0001785530] SC 13D
[0001785530] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Bank of America Corp /DE/ Werewolf Therapeutics Inc [2024-02-13] 5.8
Adage Capital Partners GP LLC Werewolf Therapeutics Inc [2023-12-21] 8.38
Rubric Capital Management LP Werewolf Therapeutics Inc [2023-02-10] 5.97
PFM Health Sciences LP Werewolf Therapeutics Inc [2023-01-17] 5.3
PFM Health Sciences LP Werewolf Therapeutics Inc [2022-05-02] 5.5
Longwood Fund III GP LLC Werewolf Therapeutics Inc [2021-05-14] 6.1
MPM BioVentures 2014 LP Werewolf Therapeutics Inc [2021-05-14] 10.6
Taiho Ventures LLC Werewolf Therapeutics Inc [2021-05-13] 7.51
Arkin Moshe Werewolf Therapeutics Inc [2021-05-10] 7.4
RA Capital Management LP Werewolf Therapeutics Inc [2021-05-06] 14.4
Flynn James E Werewolf Therapeutics Inc [2021-05-04] 9.27
Form 3/4/5 Filer 2011 - 2026
Werewolf Therapeutics Inc
Evnin Luke
Shah Rajeev M
RA Capital Healthcare Fund LP
RA Capital Management LP
Kolchinsky Peter
Urban Michael J
Oncology Impact Fund Cayman Management LP
MPM Oncology Innovations Fund LP
MPM BioImpact LLC
Gadicke Ansbert
UBS Oncology Impact Fund LP
MPM Asset Management LLC
MPM Oncology Innovations Fund GP LLC
MPM BioVentures 2014 LP
MPM BioVentures 2014 GP LLC
MPM Asset Management Investors BV2014 LLC
MPM BioVentures 2014 LLC
MPM BioVentures 2014 B LP
Chatterjee Meeta
Atkins Michael B
Singhal Anil K
Sherman Michael A
Lazarus Alon
Morrison Briggs
RA Capital Nexus Fund II LP
Bloom Steven H
Foley Todd
Lubman Ellen
Hicklin Daniel J
Karunatilake Chulani
Isaacs Randi
Trost Timothy W
DiRocco Derek
Seidel-Dugan Cynthia
Leonard Reid
MPM Oncology Impact Management GP LLC
HBM BioVentures Cayman Ltd
Sphera Global Healthcare GP Ltd
Sphera Global Healthcare Management LP
Sphera Funds Management Ltd
Deerfield Management Company LP
Deerfield Capital LP
Deerfield Partners LP
Flynn James E
Arkin Bio Ventures 2 LP
Arkin Bio Ventures GPGP Ltd
Arkin Moshe
Taiho Ventures LLC
Asanuma Sakae
Longwood Fund III GP LLC
Longwood Fund III LP
UPMC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Evnin Luke
Common Stock
2026-01-16 Sell 38,782 $0.54 20,942
Evnin Luke
Common Stock
2026-01-15 Sell 37,413 $0.55 20,577
Evnin Luke
Common Stock
2026-01-14 Sell 30,616 $0.57 17,451
Evnin Luke
Common Stock
2026-01-13 Sell 43,198 $0.55 23,759
Evnin Luke
Common Stock
2026-01-12 Sell 58,980 $0.57 33,619
Evnin Luke
Common Stock
2026-01-09 Sell 24,678 $0.61 15,054
Evnin Luke
Common Stock
2026-01-08 Sell 7,716 $0.63 4,861
Evnin Luke
Common Stock
2026-01-07 Sell 11,915 $0.64 7,626
Evnin Luke
Common Stock
2026-01-06 Sell 40,761 $0.65 26,495
Evnin Luke
Common Stock
2026-01-05 Sell 18,378 $0.64 11,762
Evnin Luke
Common Stock
2026-01-02 Sell 18,568 $0.63 11,698
Evnin Luke
Common Stock
2025-12-31 Sell 24,962 $0.62 15,476
Evnin Luke
Common Stock
2025-12-30 Sell 34,847 $0.61 21,257
Evnin Luke
Common Stock
2025-12-29 Sell 108,606 $0.61 66,250
Evnin Luke
Common Stock
2025-12-26 Sell 35,632 $0.63 22,448
Evnin Luke
Common Stock
2025-12-24 Sell 16,310 $0.65 10,602
Evnin Luke
Common Stock
2025-12-23 Sell 71,428 $0.63 45,000
Evnin Luke
Common Stock
2025-12-22 Sell 59,307 $0.69 40,922
Evnin Luke
Common Stock
2025-12-17 Sell 9,983 $1.14 11,381
Evnin Luke
Common Stock
2025-12-16 Sell 14,548 $1.05 15,275
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 48 13,999,916
2025-12-31 51 14,735,271
2025-09-30 62 21,109,510
2025-06-30 66 22,325,223
2025-03-31 72 27,460,026
2024-12-31 76 28,203,793
2024-09-30 70 32,220,260
2024-06-30 72 32,340,540
2024-03-31 62 32,364,220
2023-12-31 42 27,674,482
2023-09-30 35 23,833,269
2023-06-30 37 24,045,139
Form 13F Holdings
Firm Period DFND Voting Shares
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