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Werewolf Therapeutics (HOWL) Institutional Ownership

Werewolf Therapeutics logo
$0.96 -0.02 (-2.15%)
Closing price 09/25/2026 04:00 PM Eastern
Extended Trading
$0.95 -0.01 (-1.03%)
As of 09/25/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Werewolf Therapeutics (NASDAQ:HOWL)

Current
Institutional Ownership
Percentage
64.84%
Number of
Institutional Buyers
(last 12 months)
9
Total
Institutional Inflows
(last 12 months)
$904.81K
Number of
Institutional Sellers
(last 12 months)
8
Total
Institutional Outflows
(last 12 months)
$2.72M
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HOWL Institutional Buying and Selling by Quarter

Werewolf Therapeutics Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 Squarepoint Ops LLC103,242$37K0.0%N/A0.212%
8/17/2026 Bank of America Corp DE311,502$112K0.0%N/A0.641%
8/7/2026 BlackRock Inc.101,573$37K0.0%N/A0.209%
5/19/2026 Bank of America Corp DE264,583$220K0.0%-64.1%0.544%
5/14/2026 Renaissance Technologies LLC516,218$430K0.0%-23.8%1.062%
2/18/2026 Millennium Management LLC240,109$152K0.0%-24.3%0.495%
2/18/2026 Bridgeway Capital Management LLC77,000$49K0.0%-24.5%0.159%
2/17/2026 MPM Bioimpact LLC1,393,557$884K0.1%-42.1%2.871%
2/17/2026 Regal Investment Advisors LLC52,593$33K0.0%+93.3%0.108%
2/13/2026 Vontobel Holding Ltd.60,003$38K0.0%+66.7%0.124%
2/12/2026 Jane Street Group LLC157,322$100K0.0%-41.4%0.324%
2/12/2026 Renaissance Technologies LLC677,766$429K0.0%+48.6%1.396%
11/17/2025 Susquehanna International Group LLP93,041$183K0.0%+16.9%0.192%
11/17/2025 Qube Research & Technologies Ltd29,250$58K0.0%-33.9%0.060%
11/17/2025 Millennium Management LLC317,053$625K0.0%-54.5%0.653%
11/17/2025 Citadel Advisors LLC154,534$304K0.0%N/A0.318%
11/17/2025 Bank of America Corp DE1,830,292$3.61M0.0%-14.0%3.771%
11/14/2025 Two Sigma Investments LP20,139$40K0.0%-55.7%0.041%
11/7/2025Vanguard Group Inc.1,408,047$2.77M0.0%+8.5%2.901%
8/15/2025 Bridgeway Capital Management LLC102,000$111K0.0%+157.7%0.227%
8/15/2025 Bank of America Corp DE2,129,024$2.32M0.0%+1.2%4.745%
8/14/2025 Jane Street Group LLC374,939$409K0.0%N/A0.836%
8/14/2025 Qube Research & Technologies Ltd44,261$48K0.0%N/A0.099%
8/13/2025 Marshall Wace LLP103,785$113K0.0%N/A0.231%
8/13/2025 Quadrature Capital Ltd25,791$28K0.0%N/A0.057%
8/8/2025 Geode Capital Management LLC327,955$358K0.0%-54.3%0.731%
8/1/2025 Y Intercept Hong Kong Ltd84,421$92K0.0%N/A0.188%
6/27/2025 Goldman Sachs Group Inc.111,985$109K0.0%-21.0%0.250%
5/16/2025Goldman Sachs Group Inc.111,985$109K0.0%-21.0%0.250%
5/16/2025AQR Capital Management LLC81,669$79K0.0%N/A0.182%
5/15/2025MPM Bioimpact LLC2,408,810$2.34M0.4%+0.9%5.368%
5/15/2025MPM Asset Management LLC4,309,860$4.19M6.0%+0.6%9.604%
5/14/2025Walleye Capital LLC59,347$58K0.0%-38.7%0.132%
5/12/2025Nuveen LLC73,370$71K0.0%N/A0.164%
5/9/2025Charles Schwab Investment Management Inc.95,712$93K0.0%+33.2%0.213%
4/28/2025Vontobel Holding Ltd.35,000$34K0.0%N/A0.078%
2/17/2025Two Sigma Investments LP93,440$138K0.0%-48.3%0.210%
2/17/2025Two Sigma Advisers LP139,100$206K0.0%-45.7%0.312%
2/17/2025Millennium Management LLC596,289$883K0.0%-55.0%1.338%
2/17/2025Deutsche Bank AG101,626$150K0.0%+450.7%0.228%
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2/17/2025D. E. Shaw & Co. Inc.17,776$26K0.0%N/A0.040%
2/17/2025Bridgeway Capital Management LLC109,586$162K0.0%+24.4%0.246%
2/17/2025Bank of America Corp DE2,078,875$3.08M0.0%-3.5%4.665%
2/14/2025Jane Street Group LLC54,713$81K0.0%+261.2%0.123%
2/14/2025Northern Trust Corp244,390$362K0.0%+7.3%0.548%
2/14/2025Dimensional Fund Advisors LP194,746$288K0.0%-24.5%0.437%
2/13/2025Regal Investment Advisors LLC27,204$40K0.0%+88.1%0.061%
2/13/2025Walleye Capital LLC96,850$143K0.0%-11.1%0.217%
2/13/2025Renaissance Technologies LLC56,900$84K0.0%-62.6%0.128%
2/12/2025Geode Capital Management LLC702,558$1.04M0.0%+2.4%1.577%
2/12/2025JPMorgan Chase & Co.62,928$93K0.0%+372.4%0.141%
2/5/2025Levin Capital Strategies L.P.50,000$74K0.0%N/A0.112%
2/4/2025Bank of New York Mellon Corp71,300$106K0.0%+23.1%0.160%
11/19/2024Barclays PLC54,810$116K0.0%+130.1%0.123%
11/16/2024Geode Capital Management LLC685,989$1.45M0.0%+6.3%1.539%
11/15/2024Barclays PLC54,810$116K0.0%+130.1%0.123%
11/15/2024XTX Topco Ltd21,209$45K0.0%N/A0.048%
11/15/2024Jane Street Group LLC15,149$32K0.0%-47.0%0.034%
11/15/2024State Street Corp476,439$1.01M0.0%+12.4%1.069%
11/15/2024Point72 Asset Management L.P.109,816$233K0.0%-70.5%0.246%
11/14/2024PFM Health Sciences LP3,398,747$7.21M0.4%+4.9%7.627%
11/14/2024Walleye Capital LLC108,968$231K0.0%+10.7%0.245%
10/3/2024SG Americas Securities LLC13,517$29K0.0%N/A0.031%
9/16/2024Point72 DIFC Ltd14,046$34K0.0%N/A0.032%
9/16/2024Cubist Systematic Strategies LLC28,371$69K0.0%-30.2%0.065%
8/16/2024Murchinson Ltd.62,500$152K0.0%N/A0.144%
8/15/2024Millennium Management LLC1,110,298$2.71M0.0%+96.4%2.555%
8/14/2024Cubist Systematic Strategies LLC28,371$69K0.0%-30.2%0.065%
8/14/2024Murchinson Ltd.62,500$152K0.0%N/A0.144%
8/14/2024Point72 DIFC Ltd14,046$34K0.0%N/A0.032%
8/14/2024Marshall Wace LLP134,184$327K0.0%+410.5%0.309%
8/13/2024Rubric Capital Management LP1,333,893$3.26M0.1%-17.7%3.070%
8/9/2024Renaissance Technologies LLC171,000$417K0.0%+103.1%0.394%
8/9/2024Dimensional Fund Advisors LP160,577$392K0.0%+43.9%0.370%
8/8/2024American Century Companies Inc.37,634$92K0.0%+50.7%0.087%
8/6/2024Acadian Asset Management LLC212,296$516K0.0%+22.8%0.489%
8/1/2024Rhumbline Advisers32,547$79K0.0%N/A0.075%
7/26/2024Bank of New York Mellon Corp67,644$165K0.0%N/A0.156%
5/16/2024Janus Henderson Group PLC1,688,054$10.92M0.0%N/A3.884%
5/10/2024Acadian Asset Management LLC172,883$1.12M0.0%+119.8%0.399%
5/10/2024Vanguard Group Inc.1,107,347$7.18M0.0%+26.8%2.554%
5/9/2024HBK Sorce Advisory LLC13,227$86K0.0%-50.0%0.031%
4/19/2024Denali Advisors LLC26,600$172K0.1%N/A0.061%
2/15/2024PFM Health Sciences LP3,468,177$13.39M0.8%+35.6%8.529%
2/14/2024Lighthouse Investment Partners LLC22,472$87K0.0%N/A0.055%
2/5/2024Certuity LLC10,000$39K0.0%N/A0.028%
2/1/2024Financial Perspectives Inc6,750$26K0.0%+80.0%0.019%
8/4/2023HBK Sorce Advisory LLC26,454$81K0.0%-50.0%0.074%
5/15/2023Rubric Capital Management LP1,935,357$5.03M0.1%+5.4%5.449%
5/8/2023Bailard Inc.18,127$47K0.0%N/A0.051%
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2/9/2023Chicago Partners Investment Group LLC10,729$41K0.0%N/A0.035%
11/15/2022PFM Health Sciences LP2,815,654$12.70M0.5%+62.7%9.158%
11/15/2022Platinum Investment Management Ltd.109,530$494K0.0%-48.7%0.356%
11/15/2022Laurion Capital Management LP522,900$2.36M0.0%-2.3%1.700%
11/14/2022Ergoteles LLC114,595$517K0.0%-11.2%0.388%
11/14/2022Rubric Capital Management LP966,879$4.36M0.2%+371.7%3.274%
10/25/2022Denali Advisors LLC5,900$27K0.0%N/A0.020%
8/15/2022Laurion Capital Management LP535,160$2.19M0.0%N/A1.935%
8/8/2022Y Intercept Hong Kong Ltd11,124$45K0.0%N/A0.040%
7/27/2022Bailard Inc.21,200$87K0.0%N/A0.077%


HOWL Institutional Ownership - Frequently Asked Questions

During the previous two years, 39 institutional investors and hedge funds held shares of Werewolf Therapeutics. The most heavily invested institutionals were PFM Health Sciences LP ($7.21M), MPM Asset Management LLC ($4.19M), Vanguard Group Inc. ($2.77M), State Street Corp ($1.01M), MPM Bioimpact LLC ($884K), Renaissance Technologies LLC ($430K), and Northern Trust Corp ($362K).Learn more on Werewolf Therapeutics' institutional investors.

64.84% of Werewolf Therapeutics' stock is owned by institutional investors. Learn more on HOWL's institutional investor holdings.

Of the 33 institutional investors that purchased Werewolf Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Jane Street Group LLC ($414.50K), Bank of America Corp DE ($337.38K), Renaissance Technologies LLC ($221.77K), PFM Health Sciences LP ($157.67K), Citadel Advisors LLC ($154.53K), Vanguard Group Inc. ($109.80K), and Marshall Wace LLP ($103.79K).

Institutional investors have bought a total of 1,065,244 shares in the last 24 months. This purchase volume represents approximately $904.81K in transactions.

The following institutional investors have sold Werewolf Therapeutics stock in the last 24 months: MPM Bioimpact LLC ($1.02M), Bank of America Corp DE ($771.70K), Millennium Management LLC ($456.59K), Renaissance Technologies LLC ($161.55K), Jane Street Group LLC ($111.26K), Two Sigma Investments LP ($25.28K), and Bridgeway Capital Management LLC ($25K).

Institutional investors have sold a total of 2,581,635 shares in the last 24 months. This volume of shares sold represents approximately $2.72M in transactions.


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Institutional ownership data for NASDAQ:HOWL is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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