Werewolf Therapeutics, Inc. (HOWL) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

8,282,641Shares held by institutions

$6,592,154Value of institutional holdings

49.70%Institutional ownership %

-12.66%Shares Changed QoQ

64No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Werewolf Therapeutics, Inc. (NASDAQ:HOWL) is held by 51 institutional investors per 13F filings through December 2025.

Their combined ownership stood at 32.2% of outstanding shares in December 2025, down from 50.1% in September 2025.
They decreased total shares held in Werewolf Therapeutics by -17.45% from the prior quarter, while the number of investors in HOWL decreased 31.08% year over year.
Among the 51 funds, 20 bought more Werewolf Therapeutics shares, 19 sold down, and 12 held their ground.
Institutional investors collectively held 14.74Mn shares in Werewolf Therapeutics as of December 2025, down by 3.12Mn shares quarter on quarter, and down 13.72Mn shares year over year.
RA CAPITAL MANAGEMENT, L.P. leads ownership in HOWL with 6.68Mn shares as of December 31, 2025, equal to 14.59% of outstanding shares.
Top purchasers of HOWL stock for the quarter ending December 2025 included Lynx1 Capital Management LP (655.93K), RENAISSANCE TECHNOLOGIES LLC (221.77K), UBS Group AG (47.93K), Morgan Stanley (26.75K), Regal Investment Advisors LLC (25.39K).
Leading sellers of Werewolf Therapeutics shares for the quarter ending December 2025 were Bank Of America Corp /De/ (2.92Mn), MPM BioImpact LLC (1.02Mn), JANE STREET GROUP, LLC (111.26K), MILLENNIUM MANAGEMENT LLC (76.94K), Goldman Sachs Group Inc (26.27K).
According to Business Quant data, leading holders of HOWL for December 2025 are RA CAPITAL MANAGEMENT, L.P. (6.68Mn), VANGUARD GROUP INC (1.41Mn), MPM BioImpact LLC (1.39Mn), Bank Of America Corp /De/ (737.55K), RENAISSANCE TECHNOLOGIES LLC (677.77K), Lynx1 Capital Management LP (655.93K), SPHERA FUNDS MANAGEMENT LTD. (626.81K), DC Funds, LP (589.1K), GEODE CAPITAL MANAGEMENT, LLC (335.89K), MILLENNIUM MANAGEMENT LLC (240.11K).

51 Institutional Holders

8,282,641 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	320	0.32%	$0.00
RA CAPITAL MANAGEMENT, L.P.	31 Dec, 2025	0	0.00%	$0.00
MPM BioImpact LLC	31 Dec, 2025	-1,015,253	-42.15%	$0.00
Barclays Plc	31 Dec, 2025	-54,849	-80.56%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	0	0.00%	$0.00
Lynx1 Capital Management LP	31 Dec, 2025	655,926	0.00%	$0.00
Bank Of America Corp /De/	31 Dec, 2025	-2,923,034	-79.85%	$0.00
DC Funds, LP	31 Dec, 2025	0	0.00%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	221,766	48.63%	$0.00
UBS Group AG	31 Dec, 2025	47,932	375.17%	$0.00
SPHERA FUNDS MANAGEMENT LTD.	31 Dec, 2025	0	0.00%	$0.00
CERTUITY, LLC	31 Dec, 2025	0	0.00%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	5,099	1.54%	$0.00
Delta Investment Management, LLC	31 Dec, 2025	14,925	0.00%	$0.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	-76,944	-24.27%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	14,483	0.00%	$0.00
Alyeska Investment Group, L.P.	31 Dec, 2025	0	0.00%	$0.00
Larson Financial Group LLC	31 Dec, 2025	3,052	30.52%	$0.00
JANE STREET GROUP, LLC	31 Dec, 2025	-111,255	-41.42%	$0.00
Engineers Gate Manager LP	31 Dec, 2025	12,185	0.00%	$0.00

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