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Disclosery

HOWL WEREWOLF THERAPEUTICS INC

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CMN (common), issuer CIK 1785530

65 managers (66 13F filers) reported a position in HOWL shares at 2025-06-30, 22,314,680 shares in all. 16 filers opened a position and 22 filers sold out during the quarter.

Managers
65
13F filers
66
New
16
Added
15
Reduced
19
Sold out
22
Shares held by filers
22,314,680

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.6,681,307$7.28M0.12%+536,42613F-HRTimelineGroup
MPM ASSET MANAGEMENT LLC4,309,860$4.7M10.84%013F-HRTimeline
MPM BIOIMPACT LLC2,408,810$2.63M0.45%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,129,024$2.32M<0.01%+25,88213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,298,251$1.42M<0.01%-211,18513F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC696,695$759K<0.01%-87,92213F-HRTimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.626,810$683K0.18%013F-HRTimelineGroup
DC Funds, LP589,102$642K29.83%013F-HRTimeline
PFM Health Sciences, LP401,110$437K0.04%-2,105,41013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC374,939$409K<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.361,983$395K<0.01%-1,309,87213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC327,955$358K<0.01%-389,56913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC316,300$345K<0.01%+252,40013F-HRTimeline
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.235,705$257K<0.01%013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC227,442$248K<0.01%+115,45713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP119,168$130K<0.01%-325,10413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP103,785$113K<0.01%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding102,022$111K-33,110Timeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC102,000$111K<0.01%+62,41413F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC92,168$100K<0.01%+10,49913F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd84,421$92K<0.01%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…79,602$86.8K<0.01%+30,26113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP65,836$71.8K<0.01%-192,62213F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC61,277$66K<0.01%-189,39913F-HRTimelineGroup
EDGEWOOD MANAGEMENT LLC50,000$54.5K<0.01%013F-HRTimeline
Qube Research & Technologies Ltd44,261$48.2K<0.01%new13F-HRTimeline
HRT FINANCIAL LP42,480$46K<0.01%new13F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.40,000$43.6K<0.01%+5,00013F-HRTimelineGroup
Regal Investment Advisors LLC27,204$29.7K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY27,200$29.6K<0.01%-80,62713F-HRTimelineGroup
Jain Global LLC26,983$29.4K<0.01%new13F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd25,791$28K<0.01%new13F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC22,409$24.4K<0.01%new13F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.20,126$21.9K<0.01%new13F-HRTimeline
CERTUITY, LLC15,000$16.4K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…14,377$15.7K<0.01%+5,23513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC13,236$14.4K<0.01%-32,12513F-HR/ATimelineGroup
HBK Sorce Advisory LLC13,227$14.4K<0.01%-31413F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC13,044$14.2K<0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC11,345$12.4K<0.01%new13F-HR/ATimelineGroup
FMR LLCin group FMR LLC11,284$12.3K<0.01%+6,82313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO10,898$11.9K<0.01%-5,11413F-HRTimelineGroup
AVANTAX ADVISORY SERVICES, INC.10,200$11.1K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA10,543$11K<0.01%+7,76413F-HR/ATimelineGroup
Larson Financial Group LLC10,000$10.9K<0.01%013F-HRTimeline
HIGHLINE WEALTH PARTNERS LLC10,000$10.9K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.9,625$10.5K<0.01%013F-HR/ATimelineGroup
CWM, LLCin group CWM, LLC8,448$9K<0.01%+1,66313F-HRTimelineGroup
Financial Perspectives, Inc6,750$7.36K<0.01%013F-HRTimeline
SIMPLEX TRADING, LLC6,999$7K<0.01%+5,10913F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.4,387$4.78K<0.01%-1,74313F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,613$3.94K<0.01%+24813F-HRTimelineGroup
UBS Group AGin group UBS Group AG3,438$3.75K<0.01%-14,25013F-HRTimelineGroup
TFC Financial Management, Inc.2,500$2.73K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,375$1.5K<0.01%new13F-HRTimeline
Rossby Financial, LCC860$937<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN459$500<0.01%-17,39713F-HRTimelineGroup
Point72 (DIFC) Ltd403$439<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC321$350<0.01%-21,58613F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…167$182<0.01%+13213F-HRTimelineGroup
Essential Partners LLC52$57<0.01%13F-HRTimeline
Plante Moran Financial Advisors, LLC50$55<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.40$44<0.01%013F-HRTimeline
True Wealth Design, LLC13$15<0.01%-913F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.