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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.

13F holders, Q2 2025

Institutional positions in Werewolf Therapeutics, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
65
−5 vs. Q1 2025
Shares held
22.3M
−5.12M (−18.7%) vs. Q1 2025
Total value
$24.3M
−$2.35M (−8.8%) vs. Q1 2025
New holders
17
15 more added
Sold out
22
19 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting HOWL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 65 institutions
Q1 2021: 0 institutionsQ2 2021: 45 institutionsQ3 2021: 42 institutionsQ4 2021: 51 institutionsQ1 2022: 49 institutionsQ2 2022: 46 institutionsQ3 2022: 44 institutionsQ4 2022: 39 institutionsQ1 2023: 38 institutionsQ2 2023: 36 institutionsQ3 2023: 35 institutionsQ4 2023: 41 institutionsQ1 2024: 61 institutionsQ2 2024: 71 institutionsQ3 2024: 69 institutionsQ4 2024: 73 institutionsQ1 2025: 70 institutionsQ2 2025: 65 institutionsQ3 2025: 62 institutionsQ4 2025: 51 institutionsQ1 2026: 48 institutionsQ2 2026: 45 institutions
Value heldQ2 2025: $24.3M
Q1 2021: $0Q2 2021: $344.3MQ3 2021: $326.2MQ4 2021: $228.4MQ1 2022: $84.3MQ2 2022: $78.0MQ3 2022: $94.5MQ4 2022: $42.8MQ1 2023: $62.5MQ2 2023: $73.3MQ3 2023: $51.1MQ4 2023: $106.8MQ1 2024: $209.7MQ2 2024: $79.3MQ3 2024: $68.3MQ4 2024: $41.7MQ1 2025: $26.7MQ2 2025: $24.3MQ3 2025: $41.6MQ4 2025: $9.34MQ1 2026: $11.7MQ2 2026: $3.91M
Institutions holding HOWL and their total value by quarter
QuarterHoldersValue
Q2 202645$3.91M
Q1 202648$11.7M
Q4 202551$9.34M
Q3 202562$41.6M
Q2 202565$24.3M
Q1 202570$26.7M
Q4 202473$41.7M
Q3 202469$68.3M
Q2 202471$79.3M
Q1 202461$209.7M
Q4 202341$106.8M
Q3 202335$51.1M
Q2 202336$73.3M
Q1 202338$62.5M
Q4 202239$42.8M
Q3 202244$94.5M
Q2 202246$78.0M
Q1 202249$84.3M
Q4 202151$228.4M
Q3 202142$326.2M
Q2 202145$344.3M
Q1 20210$0

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Werewolf Therapeutics, Inc.; share changes are against Q1 2025.

Institutions holding HOWL in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Ra Capital Management, L.P.6,681,307$7.28M0.12%+536,426+8.7%Added
MPM Asset Management LLC4,309,860$4.70M10.84%00.0%Unchanged
MPM Oncology Impact Management LP2,408,810$2.63M0.45%00.0%Unchanged
Bank of America Corp2,129,024$2.32M0.00%+25,882+1.2%Added
Vanguard Group Inc1,298,251$1.42M0.00%−211,185−14.0%Reduced
Millennium Management LLC696,695$759.4K0.00%−87,922−11.2%Reduced
Sphera Funds Management Ltd.626,810$683.2K0.18%00.0%Unchanged
DC Funds, LP589,102$642.1K29.83%00.0%Unchanged
PFM Health Sciences, LP401,110$437.2K0.04%−2,105,410−84.0%Reduced
Jane Street Group, LLC374,939$408.7K0.00%+374,939New
BlackRock, Inc.361,983$394.6K0.00%−1,309,872−78.3%Reduced
Geode Capital Management, LLC327,955$357.6K0.00%−389,569−54.3%Reduced
Renaissance Technologies LLC316,300$344.8K0.00%+252,400+395.0%Added
Alyeska Investment Group, L.P.235,705$256.9K0.00%00.0%Unchanged
Goldman Sachs Group Inc227,442$247.9K0.00%+115,457+103.1%Added
State Street Corp119,168$129.9K0.00%−325,104−73.2%Reduced
Marshall Wace, LLP103,785$113.1K0.00%+103,785New
Bridgeway Capital Management, LLC102,000$111.2K0.00%+62,414+157.7%Added
AQR Capital Management LLC92,168$100.5K0.00%+10,499+12.9%Added
Y-Intercept (Hong Kong) Ltd84,421$92.0K0.00%+84,421New
Susquehanna International Group, LLP79,602$86.8K0.00%+30,261+61.3%Added
Northern Trust Corp65,836$71.8K0.00%−192,622−74.5%Reduced
Acadian Asset Management LLC61,277$66.0K0.00%−189,399−75.6%Reduced
Two Sigma Advisers, LP56,600$61.7K0.00%−20,400−26.5%Reduced
Edgewood Management LLC50,000$54.5K0.00%00.0%Unchanged
Two Sigma Investments, LP45,422$49.5K0.00%−12,710−21.9%Reduced
Qube Research & Technologies Ltd44,261$48.2K0.00%+44,261New
HRT Financial LP42,480$46.0K0.00%+42,480New
Vontobel Holding Ltd.40,000$43.6K0.00%+5,000+14.3%Added
Regal Investment Advisors LLC27,204$29.7K0.00%00.0%Unchanged
Morgan Stanley27,200$29.6K0.00%−80,627−74.8%Reduced
Jain Global LLC26,983$29.4K0.00%+26,983New
Quadrature Capital Ltd25,791$28.0K0.00%+25,791New
Two Sigma Securities, LLC22,409$24.4K0.00%+22,409New
Royal Bank of Canada21,086$22.0K0.00%+18,307+658.8%Added
Point72 Asia (Singapore) Pte. Ltd.20,126$21.9K0.00%+20,126New
Camden Capital, LLC15,000$16.4K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)14,377$15.7K0.00%+5,235+57.3%Added
Barclays PLC13,236$14.4K0.00%−32,125−70.8%Reduced
HBK Sorce Advisory LLC13,227$14.4K0.00%−314−2.3%Reduced
Raymond James Financial Inc13,044$14.2K0.00%+13,044New
Jump Financial, LLC11,345$12.4K0.00%+11,345New
FMR LLC11,284$12.3K0.00%+6,823+152.9%Added
JPMorgan Chase & Co10,898$11.9K0.00%−5,114−31.9%Reduced
Avantax Advisory Services, Inc.10,200$11.1K0.00%+10,200New
Larson Financial Group LLC10,000$10.9K0.00%00.0%Unchanged
Highline Wealth Partners LLC10,000$10.9K0.00%+10,000New
Advisor Group Holdings, Inc.9,625$10.5K0.00%00.0%Unchanged
CWM, LLC8,448$9.00K0.00%+1,663+24.5%Added
Financial Perspectives, Inc6,750$7.36K0.00%00.0%Unchanged
Simplex Trading, LLC6,999$7.00K0.00%+5,109+270.3%Added
Federated Hermes, Inc.4,387$4.78K0.00%−1,743−28.4%Reduced
BNP Paribas Arbitrage, SA3,613$3.94K0.00%+248+7.4%Added
UBS Group AG3,438$3.75K0.00%−14,250−80.6%Reduced
TFC Financial Management2,500$2.73K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC1,375$1.50K0.00%+1,375New
Rossby Financial, LCC860$9370.00%00.0%Unchanged
Wells Fargo & Company459$5000.00%−17,397−97.4%Reduced
Point72 (DIFC) Ltd403$4390.00%+403New
Citigroup Inc321$3500.00%−21,586−98.5%Reduced
EverSource Wealth Advisors, LLC167$1820.00%+132+377.1%Added
Essential Partners LLC52$570.00%+52New
Plante Moran Financial Advisors, LLC50$550.00%+50New
SBI Securities Co., Ltd.40$440.00%00.0%Unchanged
True Wealth Design, LLC13$150.00%−9−40.9%Reduced
Rubric Capital Management LP0$00.00%−1,333,893−100.0%Sold out
Deutsche Bank AG0$00.00%−101,626−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−95,712−100.0%Sold out
Dimensional Fund Advisors LP0$00.00%−84,607−100.0%Sold out
Nuveen, LLC0$00.00%−73,370−100.0%Sold out
Bank of New York Mellon Corp0$00.00%−62,407−100.0%Sold out
Walleye Capital LLC0$00.00%−59,347−100.0%Sold out
Rhumbline Advisers0$00.00%−31,231−100.0%Sold out
Intech Investment Management LLC0$00.00%−22,239−100.0%Sold out
SEI Investments Co0$00.00%−21,322−100.0%Sold out
Mirae Asset Global ETFs Holdings Ltd.0$00.00%−18,651−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−15,355−100.0%Sold out
Invesco Ltd.0$00.00%−14,232−100.0%Sold out
Squarepoint Ops LLC0$00.00%−11,828−100.0%Sold out
Ieq Capital, LLC0$00.00%−10,837−100.0%Sold out
New York State Common Retirement Fund0$00.00%−5,100−100.0%Sold out
Ameritas Investment Partners, Inc.0$00.00%−2,987−100.0%Sold out
Legal & General Group Plc0$00.00%−2,642−100.0%Sold out
California State Teachers Retirement System0$00.00%−2,209−100.0%Sold out
Amalgamated Bank0$00.00%−1,055−100.0%Sold out
Sterling Capital Management LLC0$00.00%−414−100.0%Sold out
IFP Advisors, Inc0$00.00%−1−100.0%Sold out