Werewolf Therapeutics, Inc. - HOWL

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
DC Funds, LP History No change 589,102 373,196 25.69% 37.3% 1 0 0.0% Q4 2025 Feb 13, 2026
RA CAPITAL MANAGEMENT, L.P. History No change 6,681,307 4,232 0.04% 0.16% 2 0 0.0% Q4 2025 Feb 17, 2026
VANGUARD GROUP INC History No change 1,408,047 892 0.0% 0.0% 3 0 0.0% Q4 2025 Jan 29, 2026
MPM BioImpact LLC History Reduced 1,393,557 883 0.1% 0.78% 4 -1,015,253 -42.15% Q4 2025 Feb 17, 2026
BANK OF AMERICA CORP /DE/ History Reduced 737,550 466 0.0% 0.0% 5 -1,092,742 -59.7% Q4 2025 Feb 17, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 677,766 429 0.0% 0.0% 6 +221,766 48.63% Q4 2025 Feb 12, 2026
Lynx1 Capital Management LP History New 655,926 415 0.08% 7 +655,926 New Q4 2025 Feb 17, 2026
SPHERA FUNDS MANAGEMENT LTD. History No change 626,810 397 0.08% 0.26% 8 0 0.0% Q4 2025 Feb 17, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 335,886 212 0.0% 0.0% 9 +5,099 1.54% Q4 2025 Feb 09, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 240,109 152 0.0% 0.0% 10 -76,944 -24.27% Q4 2025 Feb 17, 2026
Alyeska Investment Group, L.P. History No change 235,705 149 0.0% 0.0% 11 0 0.0% Q4 2025 Feb 13, 2026
JANE STREET GROUP, LLC History Reduced 157,322 99 0.0% 0.0% 12 -111,255 -41.42% Q4 2025 Feb 12, 2026
STATE STREET CORP History No change 119,168 75 0.0% 0.0% 13 0 0.0% Q4 2025 Feb 13, 2026
BlackRock, Inc. History Added to 101,643 64 0.0% 0.0% 14 +320 0.32% Q4 2025 Feb 12, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 99,829 63 0.0% 0.0% 15 +6,788 7.3% Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Added to 86,851 55 0.0% 0.0% 16 +21,015 31.92% Q4 2025 Feb 17, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 77,000 48 0.0% 0.0% 17 -25,000 -24.51% Q4 2025 Feb 17, 2026
UBS Group AG History Added to 60,708 38 0.0% 0.0% 19 +47,932 375.17% Q4 2025 Jan 29, 2026
Vontobel Holding Ltd. History Added to 60,003 38 0.0% 0.0% 18 +24,003 66.68% Q4 2025 Feb 13, 2026
Regal Investment Advisors LLC History Added to 52,593 33 0.0% 0.0% 20 +25,389 93.33% Q4 2025 Feb 17, 2026
EDGEWOOD MANAGEMENT LLC History No change 50,000 31 0.0% 0.0% 21 0 0.0% Q4 2025 Feb 12, 2026
MORGAN STANLEY History Added to 46,002 29 0.0% 0.0% 22 +26,750 138.95% Q4 2025 Feb 13, 2026
GOLDMAN SACHS GROUP INC History Reduced 34,073 21 0.0% 0.0% 23 -26,268 -43.53% Q4 2025 Mar 25, 2026
SIMPLEX TRADING, LLC History Added to 24,054 15 0.0% 0.0% 24 +8,418 53.84% Q4 2025 Feb 11, 2026
Delta Investment Management, LLC History New 14,925 9 0.0% 26 +14,925 New Q4 2025 Jan 30, 2026
Point72 Asset Management, L.P. History New 14,483 9 0.0% 25 +14,483 New Q4 2025 Feb 17, 2026
CERTUITY, LLC History No change 15,000 9 0.0% 0.0% 27 0 0.0% Q4 2025 Jan 30, 2026
Larson Financial Group LLC History Added to 13,052 8 0.0% 0.0% 30 +3,052 30.52% Q4 2025 Feb 06, 2026
BARCLAYS PLC History Reduced 13,236 8 0.0% 0.0% 28 -39 -0.29% Q4 2025 Feb 13, 2026
HBK Sorce Advisory LLC History No change 13,227 8 0.0% 0.0% 29 0 0.0% Q4 2025 Feb 09, 2026
Engineers Gate Manager LP History New 12,185 7 0.0% 31 +12,185 New Q4 2025 Feb 17, 2026
Ranch Capital Advisors Inc. History New 12,000 7 0.0% 32 +12,000 New Q4 2025 Feb 05, 2026
HIGHLINE WEALTH PARTNERS LLC History Added to 12,000 7 0.0% 0.0% 33 +7,000 140.0% Q4 2025 Jan 15, 2026
TWO SIGMA ADVISERS, LP History Reduced 10,300 6 0.0% 0.0% 35 -24,300 -70.23% Q4 2025 Feb 17, 2026
StoneX Group Inc. History New 10,511 6 0.0% 34 +10,511 New Q4 2025 Feb 12, 2026
Cetera Investment Advisers History No change 10,200 6 0.0% 0.0% 36 0 0.0% Q4 2025 Feb 17, 2026
OSAIC HOLDINGS, INC. History Reduced 8,625 5 0.0% 0.0% 37 -1,000 -10.39% Q4 2025 Feb 17, 2026
Financial Perspectives, Inc History No change 6,750 4 0.0% 0.0% 38 0 0.0% Q4 2025 Jan 28, 2026
FMR LLC History Reduced 3,631 2 0.0% 0.0% 39 -7,653 -67.82% Q4 2025 Feb 17, 2026
TFC Financial Management, Inc. History Added to 4,500 2 0.0% 0.0% 41 +2,000 80.0% Q4 2025 Jan 23, 2026
FEDERATED HERMES, INC. History No change 4,387 2 0.0% 0.0% 40 0 0.0% Q4 2025 Feb 12, 2026
JPMORGAN CHASE & CO History Added to 2,072 1 0.0% 0.0% 42 +949 84.51% Q4 2025 Feb 11, 2026
GROUP ONE TRADING LLC History Reduced 1,871 1 0.0% 0.0% 43 -800 -29.95% Q4 2025 Feb 12, 2026
PFM Health Sciences, LP History Closed out 0 0 0.06% -401,110 -100.0% Q3 2025 Nov 14, 2025
CITADEL ADVISORS LLC History Closed out 0 0 0.0% -154,534 -100.0% Q3 2025 Nov 14, 2025
HRT FINANCIAL LP History Closed out 0 0 0.0% -39,859 -100.0% Q3 2025 Nov 14, 2025
ACADIAN ASSET MANAGEMENT LLC History Closed out 0 0 0.0% -34,285 -100.0% Q3 2025 Nov 13, 2025
Qube Research & Technologies Ltd History Closed out 0 0 0.0% -29,250 -100.0% Q3 2025 Nov 14, 2025
TWO SIGMA INVESTMENTS, LP History Closed out 0 0 0.0% -20,139 -100.0% Q3 2025 Nov 14, 2025
AQR CAPITAL MANAGEMENT LLC History Closed out 0 0 0.0% -17,807 -100.0% Q3 2025 Nov 14, 2025
RAYMOND JAMES FINANCIAL INC History Closed out 0 0 0.0% -14,436 -100.0% Q3 2025 Nov 14, 2025
Virtu Financial LLC History Closed out 0 0 0.0% -12,230 -100.0% Q3 2025 Nov 14, 2025
CITIGROUP INC History Reduced 1 0 0.0% -8,660 -99.99% Q4 2025 Feb 13, 2026
Tower Research Capital LLC (TRC) History Closed out 0 0 0.0% -6,004 -100.0% Q3 2025 Nov 14, 2025
CWM, LLC History Closed out 0 0 0.0% -1,569 -100.0% Q3 2025 Oct 15, 2025
NISA INVESTMENT ADVISORS, LLC History Reduced 345 0 0.0% -1,030 -74.91% Q4 2025 Jan 15, 2026
Rossby Financial, LCC History Closed out 0 0 0.0% -860 -100.0% Q3 2025 Nov 10, 2025
Advisory Services Network, LLC History Closed out 0 0 -157 -100.0% Q3 2025 Nov 18, 2025
ROYAL BANK OF CANADA History New 62 0 +62 New Q4 2025 Feb 17, 2026
Plante Moran Financial Advisors, LLC History Closed out 0 0 -50 -100.0% Q3 2025 Nov 05, 2025
EverSource Wealth Advisors, LLC History Closed out 0 0 -35 -100.0% Q3 2025 Nov 10, 2025
Arax Advisory Partners History Reduced 39 0 -29 -42.65% Q4 2025 Feb 13, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History New 4 0 +4 New Q4 2025 Feb 10, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 792 0 0.0% -1 -0.13% Q4 2025 Feb 10, 2026
SBI Securities Co., Ltd. History Reduced 40 0 -1 -2.44% Q4 2025 Feb 03, 2026
Optiver Holding B.V. History No change 22 0 0 0.0% Q4 2025 Feb 17, 2026