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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 1 sale; 45 institutions reported holding it in 13F filings for Q2 2026, worth $3.91M in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Werewolf Therapeutics, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of HOWL: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders65162−2
Shares22.3M10.2K21.1M−1.20M (−5.4%)
Value$24.3M$11.1K$41.6M+$17.3M (+71.0%)

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (8)

Institutions that held Werewolf Therapeutics, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to HOWL in Q3 2025
InstitutionSharesValue% of portfolio
Citadel Advisors LLC154,534$304.4K0.00%
Cubist Systematic Strategies, LLC46,711$92.0K0.00%
Virtu Financial LLC12,230$24.0K0.00%
Cetera Investment Advisers10,200$20.1K0.00%
Group One Trading, L.P.2,671$5.26K0.00%
Advisory Services Network, LLC157$3090.00%
SRS Capital Advisors, Inc.68$1330.00%
Optiver Holding B.V.22$430.00%

Sold out (10)

Institutions that held Werewolf Therapeutics, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of HOWL in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Marshall Wace, LLP103,785$113.1K
Y-Intercept (Hong Kong) Ltd84,421$92.0K
Jain Global LLC26,983$29.4K
Quadrature Capital Ltd25,791$28.0K
Two Sigma Securities, LLC22,409$24.4K
Jump Financial, LLC11,345$12.4K
Wells Fargo & Company459$500
Point72 (DIFC) Ltd403$439
Essential Partners LLC52$57
True Wealth Design, LLC13$15

Not filed for Q3 2025 yet (1)

Institutions that held Werewolf Therapeutics, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding HOWL in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Avantax Advisory Services, Inc.10,200$11.1K