MPM BioImpact’s Werewolf Therapeutics HOWL Stock Holding History

MPM BioImpact’s Portfolio HOWL Stock Details HOWL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.01M	Sell	1,208,810 -184,747	-13%	-$127K	0.08%	41
2025 Q4	$884K	Sell	1,393,557 -1,015,253	-42%	-$1.23M	0.1%	38
2025 Q3	$4.75M	Hold	2,408,810	–	–	0.78%	31
2025 Q2	$2.63M	Hold	2,408,810	–	–	0.45%	40
2025 Q1	$2.34M	Buy	2,408,810 +20,799	+0.9%	+$27.2K	0.4%	39
2024 Q4	$3.53M	Hold	2,388,011	–	–	0.5%	41
2024 Q3	$5.06M	Hold	2,388,011	–	–	0.76%	37
2024 Q2	$5.83M	Hold	2,388,011	–	–	0.91%	36
2024 Q1	$15.5M	Hold	2,388,011	–	–	2.49%	11
2023 Q4	$9.22M	Hold	2,388,011	–	–	2.16%	20
2023 Q3	$5.11M	Hold	2,388,011	–	–	1.36%	24
2023 Q2	$7.28M	Hold	2,388,011	–	–	1.47%	21
2023 Q1	$6.21M	Hold	2,388,011	–	–	1.61%	18
2022 Q4	$4.9M	Hold	2,388,011	–	–	1.27%	19
2022 Q3	$10.8M	Hold	2,388,011	–	–	2.55%	12
2022 Q2	$9.77M	Hold	2,388,011	–	–	2.71%	10
2022 Q1	$10.5M	Hold	2,388,011	–	–	2.82%	7
2021 Q4	$28.4M	Hold	2,388,011	–	–	5.19%	6
2021 Q3	$41M	Hold	2,388,011	–	–	6.36%	4
2021 Q2	$41.6M	Buy	+2,388,011	New	+$32.7M	6.84%	6

Other funds holding HOWL

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return

Sphera Funds Management Tel Aviv, Israel $581M AUM 108.65% 1-Year Est. Return

DC Funds Mclean, Virginia $1.49M AUM 18.57% 1-Year Est. Return

Squadron Capital Management Westmont, Illinois $250M AUM

Renaissance Technologies

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Bank of America

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM