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HOWL WEREWOLF THERAPEUTICS INC

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CMN (common), issuer CIK 1785530

70 managers (71 13F filers) reported a position in HOWL shares at 2025-03-31, 27,446,126 shares in all. 6 filers opened a position and 9 filers sold out during the quarter.

Managers
70
13F filers
71
New
6
Added
24
Reduced
19
Sold out
9
Shares held by filers
27,446,126

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, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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.6,144,881$5.97M0.1%013F-HRTimelineGroup
MPM ASSET MANAGEMENT LLC4,309,860$4.19M6.03%+25,68813F-HRTimeline
PFM Health Sciences, LP2,506,520$2.44M0.19%-398,94513F-HRTimeline
MPM BIOIMPACT LLC2,408,810$2.34M0.4%+20,79913F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,103,142$2.04M<0.01%+24,26713F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.1,671,855$1.63M<0.01%-28,57713F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,509,436$1.47M<0.01%+88,46713F-HRTimelineGroup
Rubric Capital Management LP1,333,893$1.3M0.02%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC784,617$763K<0.01%+188,32813F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC717,524$698K<0.01%+14,96613F-HRTimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.626,810$609K0.15%013F-HRTimelineGroup
DC Funds, LP589,102$573K27.71%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP444,272$432K<0.01%+17,50013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP258,458$251K<0.01%+14,06813F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC250,676$242K<0.01%+8,41213F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.235,705$229K<0.01%013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding135,132$131K-97,408Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC111,985$109K<0.01%-29,84513F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY107,827$105K<0.01%-30,31513F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\101,626$98.6K<0.01%013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co95,712$93.1K<0.01%+23,85213F-HR/ATimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP84,607$82.4K<0.01%-110,13913F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC81,669$79.4K<0.01%new13F-HRTimelineGroup
Nuveen, LLCin group TIAA73,370$71.3K<0.01%13F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC63,900$62.1K<0.01%+7,00013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp62,407$60.7K<0.01%-8,89313F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC59,347$57.7K<0.01%-37,50313F-HRTimelineGroup
EDGEWOOD MANAGEMENT LLC50,000$48.6K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…49,341$48K<0.01%+15,47913F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC45,361$44.1K<0.01%-14,38713F-HR/ATimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC39,586$38.5K<0.01%-70,00013F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.35,000$34K<0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS31,231$30.3K<0.01%+2,31513F-HR/ATimeline
Regal Investment Advisors LLC27,204$26.4K<0.01%013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC22,239$21.6K<0.01%+7,37313F-HRTimeline
CITIGROUP INCin group CITIGROUP INC21,907$21.3K<0.01%-1,82213F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO21,322$20.7K<0.01%013F-HR/ATimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…18,651$18.1K<0.01%+78013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN17,856$17.4K<0.01%+87513F-HRTimelineGroup
UBS Group AGin group UBS Group AG17,688$17.2K<0.01%-12,80513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO16,012$15.6K<0.01%-46,91613F-HRTimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.15,355$14.9K<0.01%+19913F-HRTimelineGroup
CERTUITY, LLC15,000$14.6K<0.01%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.14,232$13.8K<0.01%-35713F-HRTimelineGroup
HBK Sorce Advisory LLC13,541$13.2K<0.01%-1,81613F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC11,828$11.5K<0.01%new13F-HR/ATimelineGroup
IEQ CAPITAL, LLC10,837$10.5K<0.01%new13F-HRTimeline
Larson Financial Group LLC10,000$9.72K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.9,625$9.34K<0.01%+1,05013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…9,142$8.89K<0.01%+3,28613F-HRTimelineGroup
CWM, LLCin group CWM, LLC6,785$7K<0.01%+6,47813F-HRTimelineGroup
Financial Perspectives, Inc6,750$6.56K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.6,130$5.96K<0.01%+5,71613F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND5,100$4.96K<0.01%013F-HR/ATimeline
FMR LLCin group FMR LLC4,461$4.34K<0.01%+2,63013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,365$3.27K<0.01%-3,46713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,779$3K<0.01%-59713F-HR/ATimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,987$2.9K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc2,642$2.57K<0.01%013F-HRTimelineGroup
TFC Financial Management, Inc.2,500$2.43K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,209$2.15K<0.01%013F-HRTimeline
SIMPLEX TRADING, LLC1,890$1K<0.01%+25613F-HRTimeline
AMALGAMATED BANK1,055$1K<0.01%013F-HRTimeline
Rossby Financial, LCC860$766<0.01%new13F-HRTimeline
Sterling Capital Management LLC414$402<0.01%-35713F-HRTimeline
SBI Securities Co., Ltd.40$39<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…35$34<0.01%+213F-HRTimelineGroup
True Wealth Design, LLC22$22<0.01%new13F-HRTimeline
IFP Advisors, Inc1$1<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.