Werewolf Therapeutics, Inc.
HOWLHealthcare|Biotechnology|US
$1.01
-0.01 (-0.98%)
DCF Value
$1.02
Tangible Book / Share
$0.34
Cash / Share
$0.45
Ownership Breakdown
82.2%
Float
48.6M
Shares Outstanding
39.9M
Float Shares
Major Holders (31)
Combined: 74.9%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Moll Peter | Other | 5.20% | 2,537,138 | Sep 21, 2026 | 13D/G |
| Bank of America Corp /De/ | Holding company | 4.90% | 2,157,395 | Nov 14, 2024 | 13D/G |
| Adage Capital Management, L.P. | IA, PN | 4.58% | 2,000,594 | Nov 12, 2024 | 13D/G |
| Robert Atchinson | HC, IN | 4.58% | 2,000,594 | Nov 12, 2024 | 13D/G |
| Phillip Gross | HC, IN | 4.58% | 2,000,594 | Nov 12, 2024 | 13D/G |
| Peter Kolchinsky | HC, IN | 4.10% | 1,985,541 | Jul 2, 2026 | 13D/G |
| Rajeev Shah | HC, IN | 4.10% | 1,985,541 | Jul 2, 2026 | 13D/G |
| RA Capital Management, L.P. | IA, PN | 4.10% | 1,985,541 | Jul 2, 2026 | 13D/G |
| RA Capital Healthcare Fund, L.P. | Partnership | 3.80% | 1,853,646 | Jul 2, 2026 | 13D/G |
| Ansbert Gadicke | Individual | 3.80% | 1,826,646 | May 12, 2026 | 13D/G |
| Longwood Fund III GP, LLC | Other | 3.50% | 1,677,082 | Feb 11, 2026 | 13D/G |
| Longwood Fund III, L.P. | Partnership | 3.50% | 1,677,082 | Feb 11, 2026 | 13D/G |
| David Rosen | Individual | 3.05% | 1,333,893 | Nov 13, 2024 | 13D/G |
| Rubric Capital Management LP | IA, PN | 3.05% | 1,333,893 | Nov 13, 2024 | 13D/G |
| Luke Evnin | Individual | 2.40% | 1,171,175 | May 12, 2026 | 13D/G |
| MPM BioVentures 2014 LLC | Other | 1.80% | 872,361 | May 12, 2026 | 13D/G |
| Todd Foley | Individual | 1.80% | 872,361 | May 12, 2026 | 13D/G |
| MPM BioVentures 2014 GP LLC | Other | 1.70% | 845,094 | May 12, 2026 | 13D/G |
| MPM BioVentures 2014, L.P. | Partnership | 1.60% | 792,254 | May 12, 2026 | 13D/G |
| UBS Oncology Impact Fund L.P. | Partnership | 1.30% | 655,471 | May 12, 2026 | 13D/G |
| MPM BioImpact LLC | Other | 1.30% | 655,471 | May 12, 2026 | 13D/G |
| Oncology Impact Fund (Cayman) Management L.P. | Partnership | 1.30% | 655,471 | May 12, 2026 | 13D/G |
| PFM Health Sciences, LP | IA, PN | 0.90% | 401,110 | Aug 14, 2025 | 13D/G |
| PFM Health Sciences GP, LLC | HC, OO | 0.90% | 401,110 | Aug 14, 2025 | 13D/G |
| Partner Asset Management, LLC | HC, OO | 0.90% | 401,110 | Aug 14, 2025 | 13D/G |
| Brian D. Grossman | HC, IN | 0.90% | 401,110 | Aug 14, 2025 | 13D/G |
| MPM Oncology Innovations Fund GP LLC | Other | 0.40% | 173,334 | May 12, 2026 | 13D/G |
| MPM Oncology Innovations Fund LP | Partnership | 0.40% | 173,334 | May 12, 2026 | 13D/G |
| MPM Asset Management LLC | Other | 0.30% | 125,480 | May 12, 2026 | 13D/G |
| MPM Asset Management Investors BV2014 LLC | Other | 0.10% | 27,267 | May 12, 2026 | 13D/G |
| MPM BioVentures 2014 (B), L.P. | Partnership | 0.10% | 52,840 | May 12, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 0 acquired · 10,288,118 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| EVNIN LUKE | director | Jul 6, 2026 | SELL | 35,770 | $0.32 | $11.4K | Form 4 |
| EVNIN LUKE | director | Jul 7, 2026 | SELL | 107,429 | $0.31 | $33.3K | Form 4 |
| EVNIN LUKE | director | Jun 29, 2026 | SELL | 157,084 | $0.30 | $47.1K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 17, 2026 | SELL | 389,216 | $0.35 | $136.2K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 17, 2026 | SELL | 27,695 | $0.35 | $9.7K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 12, 2026 | SELL | 159,119 | $0.40 | $63.6K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 15, 2026 | SELL | 120,216 | $0.39 | $46.9K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 16, 2026 | SELL | 139,686 | $0.37 | $51.7K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 12, 2026 | SELL | 11,322 | $0.40 | $4.5K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 15, 2026 | SELL | 8,554 | $0.39 | $3.3K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 16, 2026 | SELL | 9,939 | $0.37 | $3.7K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 9, 2026 | SELL | 345,235 | $0.37 | $127.7K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 10, 2026 | SELL | 42,872 | $0.37 | $15.9K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 11, 2026 | SELL | 245,066 | $0.38 | $93.1K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 9, 2026 | SELL | 24,565 | $0.37 | $9.1K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 10, 2026 | SELL | 3,051 | $0.37 | $1.1K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | Jun 11, 2026 | SELL | 17,437 | $0.38 | $6.6K | Form 4 |
| EVNIN LUKE | director | Jun 9, 2026 | SELL | 76,928 | $0.37 | $28.5K | Form 4 |
| EVNIN LUKE | director | Jun 4, 2026 | SELL | 20,072 | $0.44 | $8.8K | Form 4 |
| EVNIN LUKE | director | Jun 5, 2026 | SELL | 24,946 | $0.40 | $10.0K | Form 4 |
| EVNIN LUKE | director | Jun 8, 2026 | SELL | 60,547 | $0.40 | $24.2K | Form 4 |
| EVNIN LUKE | director | Jun 1, 2026 | SELL | 80,459 | $0.47 | $37.8K | Form 4 |
| EVNIN LUKE | director | Jun 2, 2026 | SELL | 29,595 | $0.45 | $13.3K | Form 4 |
| EVNIN LUKE | director | Jun 3, 2026 | SELL | 29,749 | $0.42 | $12.5K | Form 4 |
| EVNIN LUKE | director | May 27, 2026 | SELL | 80,852 | $0.48 | $38.8K | Form 4 |
| EVNIN LUKE | director | May 28, 2026 | SELL | 27,698 | $0.46 | $12.7K | Form 4 |
| EVNIN LUKE | director | May 29, 2026 | SELL | 32,556 | $0.45 | $14.7K | Form 4 |
| EVNIN LUKE | director | May 21, 2026 | SELL | 36,387 | $0.42 | $15.3K | Form 4 |
| EVNIN LUKE | director | May 22, 2026 | SELL | 87,425 | $0.45 | $39.3K | Form 4 |
| EVNIN LUKE | director | May 26, 2026 | SELL | 67,950 | $0.47 | $31.9K | Form 4 |
| EVNIN LUKE | director | May 18, 2026 | SELL | 22,184 | $0.50 | $11.1K | Form 4 |
| EVNIN LUKE | director | May 19, 2026 | SELL | 62,970 | $0.45 | $28.3K | Form 4 |
| EVNIN LUKE | director | May 20, 2026 | SELL | 85,895 | $0.43 | $36.9K | Form 4 |
| EVNIN LUKE | director | May 13, 2026 | SELL | 44,679 | $0.54 | $24.1K | Form 4 |
| EVNIN LUKE | director | May 8, 2026 | SELL | 305,741 | $0.70 | $214.0K | Form 4 |
| EVNIN LUKE | director | May 11, 2026 | SELL | 33,948 | $0.67 | $22.7K | Form 4 |
| EVNIN LUKE | director | May 12, 2026 | SELL | 67,885 | $0.64 | $43.4K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 8, 2026 | SELL | 351,514 | $0.71 | $249.6K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 11, 2026 | SELL | 81,678 | $0.67 | $54.7K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 12, 2026 | SELL | 94,432 | $0.64 | $60.4K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 8, 2026 | SELL | 25,012 | $0.71 | $17.8K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 11, 2026 | SELL | 5,812 | $0.67 | $3.9K | Form 4 |
| RA CAPITAL MANAGEMENT, L.P. | 10 percent owner | May 12, 2026 | SELL | 6,719 | $0.64 | $4.3K | Form 4 |
| EVNIN LUKE | director | May 5, 2026 | SELL | 6,860 | $0.69 | $4.7K | Form 4 |
| EVNIN LUKE | director | May 6, 2026 | SELL | 14,635 | $0.66 | $9.7K | Form 4 |
| EVNIN LUKE | director | May 7, 2026 | SELL | 79,086 | $0.63 | $49.8K | Form 4 |
| EVNIN LUKE | director | Apr 30, 2026 | SELL | 168,262 | $0.72 | $121.1K | Form 4 |
| EVNIN LUKE | director | May 1, 2026 | SELL | 58,394 | $0.73 | $42.6K | Form 4 |
| EVNIN LUKE | director | May 4, 2026 | SELL | 47,963 | $0.72 | $34.5K | Form 4 |
| EVNIN LUKE | director | Apr 27, 2026 | SELL | 53,940 | $0.85 | $45.8K | Form 4 |
| EVNIN LUKE | director | Apr 28, 2026 | SELL | 95,412 | $0.73 | $69.7K | Form 4 |
| EVNIN LUKE | director | Apr 29, 2026 | SELL | 56,559 | $0.69 | $39.0K | Form 4 |
| Urban Michael J. | VP of Finance & Corp. Contr. | Feb 13, 2026 | OTHER | 0 | — | — | Form 4 |
| Urban Michael J. | VP of Finance & Corp. Contr. | Feb 13, 2026 | OTHER | 52,500 | $3.65 | $191.6K | Form 4 |
| Urban Michael J. | VP of Finance & Corp. Contr. | Feb 13, 2026 | OTHER | 29,365 | $4.64 | $136.3K | Form 4 |
| Urban Michael J. | VP of Finance & Corp. Contr. | Feb 13, 2026 | OTHER | 10,000 | $1.57 | $15.7K | Form 4 |
| Urban Michael J. | VP of Finance & Corp. Contr. | Feb 13, 2026 | OTHER | 54,800 | $1.56 | $85.5K | Form 4 |
| EVNIN LUKE | director | Jan 16, 2026 | SELL | 38,782 | $0.54 | $20.9K | Form 4 |
| EVNIN LUKE | director | Jan 13, 2026 | SELL | 43,198 | $0.55 | $23.8K | Form 4 |
| EVNIN LUKE | director | Jan 14, 2026 | SELL | 30,616 | $0.57 | $17.5K | Form 4 |
| EVNIN LUKE | director | Jan 15, 2026 | SELL | 37,413 | $0.55 | $20.6K | Form 4 |
| EVNIN LUKE | director | Jan 8, 2026 | SELL | 7,716 | $0.63 | $4.9K | Form 4 |
| EVNIN LUKE | director | Jan 9, 2026 | SELL | 24,678 | $0.61 | $15.1K | Form 4 |
| EVNIN LUKE | director | Jan 12, 2026 | SELL | 58,980 | $0.57 | $33.6K | Form 4 |
| EVNIN LUKE | director | Jan 5, 2026 | SELL | 18,378 | $0.64 | $11.8K | Form 4 |
| EVNIN LUKE | director | Jan 6, 2026 | SELL | 40,761 | $0.65 | $26.5K | Form 4 |
| EVNIN LUKE | director | Jan 7, 2026 | SELL | 11,915 | $0.64 | $7.6K | Form 4 |
| EVNIN LUKE | director | Dec 30, 2025 | SELL | 34,847 | $0.61 | $21.3K | Form 4 |
| EVNIN LUKE | director | Dec 31, 2025 | SELL | 24,962 | $0.62 | $15.5K | Form 4 |
| EVNIN LUKE | director | Jan 2, 2026 | SELL | 18,568 | $0.63 | $11.7K | Form 4 |
| EVNIN LUKE | director | Dec 22, 2025 | SELL | 59,307 | $0.69 | $40.9K | Form 4 |
| EVNIN LUKE | director | Dec 23, 2025 | SELL | 71,428 | $0.63 | $45.0K | Form 4 |
| EVNIN LUKE | director | Dec 24, 2025 | SELL | 16,310 | $0.65 | $10.6K | Form 4 |
| EVNIN LUKE | director | Dec 26, 2025 | SELL | 35,632 | $0.63 | $22.4K | Form 4 |
| EVNIN LUKE | director | Dec 29, 2025 | SELL | 108,606 | $0.61 | $66.2K | Form 4 |
| EVNIN LUKE | director | Dec 15, 2025 | SELL | 23,640 | $1.07 | $25.3K | Form 4 |
| EVNIN LUKE | director | Dec 16, 2025 | SELL | 14,548 | $1.05 | $15.3K | Form 4 |
| EVNIN LUKE | director | Dec 17, 2025 | SELL | 9,983 | $1.14 | $11.4K | Form 4 |
| EVNIN LUKE | director | Dec 10, 2025 | SELL | 37,104 | $1.06 | $39.3K | Form 4 |
| EVNIN LUKE | director | Dec 11, 2025 | SELL | 28,009 | $1.07 | $30.0K | Form 4 |
| EVNIN LUKE | director | Dec 12, 2025 | SELL | 17,858 | $1.08 | $19.3K | Form 4 |
| EVNIN LUKE | director | Dec 5, 2025 | SELL | 16,568 | $0.97 | $16.1K | Form 4 |
| EVNIN LUKE | director | Dec 8, 2025 | SELL | 34,041 | $0.99 | $33.7K | Form 4 |
| EVNIN LUKE | director | Dec 9, 2025 | SELL | 44,570 | $1.01 | $45.0K | Form 4 |
| EVNIN LUKE | director | Dec 2, 2025 | SELL | 38,043 | $0.89 | $33.9K | Form 4 |
| EVNIN LUKE | director | Dec 3, 2025 | SELL | 36,726 | $0.87 | $32.0K | Form 4 |
| EVNIN LUKE | director | Dec 4, 2025 | SELL | 53,416 | $0.97 | $51.8K | Form 4 |
| MPM BioVentures 2014, L.P. | other: Former 10% Owner | Dec 2, 2025 | SELL | 59,277 | $0.89 | $52.8K | Form 4 |
| MPM BioVentures 2014, L.P. | other: Former 10% Owner | Dec 3, 2025 | SELL | 57,225 | $0.87 | $49.8K | Form 4 |
| MPM BioVentures 2014, L.P. | other: Former 10% Owner | Dec 4, 2025 | SELL | 83,230 | $0.97 | $80.7K | Form 4 |
| GADICKE ANSBERT | other: Former 10% Owner | Dec 2, 2025 | SELL | 59,277 | $0.89 | $52.8K | Form 4 |
| GADICKE ANSBERT | other: Former 10% Owner | Dec 3, 2025 | SELL | 57,225 | $0.87 | $49.8K | Form 4 |
| GADICKE ANSBERT | other: Former 10% Owner | Dec 4, 2025 | SELL | 83,230 | $0.97 | $80.7K | Form 4 |
| EVNIN LUKE | director | Nov 26, 2025 | SELL | 38,978 | $0.98 | $38.2K | Form 4 |
| EVNIN LUKE | director | Nov 28, 2025 | SELL | 13,014 | $0.99 | $12.9K | Form 4 |
| EVNIN LUKE | director | Dec 1, 2025 | SELL | 39,096 | $0.94 | $36.8K | Form 4 |
| MPM BioVentures 2014, L.P. | 10 percent owner | Nov 26, 2025 | SELL | 60,733 | $0.98 | $59.5K | Form 4 |
| MPM BioVentures 2014, L.P. | 10 percent owner | Nov 28, 2025 | SELL | 20,277 | $0.99 | $20.1K | Form 4 |
| MPM BioVentures 2014, L.P. | 10 percent owner | Dec 1, 2025 | SELL | 60,917 | $0.94 | $57.3K | Form 4 |
| GADICKE ANSBERT | 10 percent owner | Nov 26, 2025 | SELL | 60,733 | $0.98 | $59.5K | Form 4 |