Simplex Trading’s Werewolf Therapeutics HOWL Stock Holding History

Simplex Trading’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
2025 Q2	–	Sell	-3,400	Closed	-$3K	–	9106
2025 Q1	$3K	Sell	3,400 -1,100	-24%	-$1.44K	﹤0.01%	7817
2024 Q4	$6K	Buy	+4,500	New	+$9.18K	﹤0.01%	7501
2024 Q2	–	Sell	-2,600	Closed	-$16K	–	9211
2024 Q1	$16K	Buy	+2,600	New	+$15.2K	﹤0.01%	7265
2023 Q3	–	Sell	-500	Closed	-$1K	–	9123
2023 Q2	$1K	Hold	500	–	–	﹤0.01%	8629
2023 Q1	$1K	Buy	+500	New	+$1.49K	﹤0.01%	8704
2022 Q3	–	Sell	-300	Closed	-$1K	–	10315
2022 Q2	$1K	Buy	+300	New	+$1.37K	﹤0.01%	9590

Other funds holding HOWL

RCM

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

MPM BioImpact Boston, Massachusetts $1.29B AUM 141.72% 1-Year Est. Return

LCM

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

SFM

Sphera Funds Management Tel Aviv, Israel $630M AUM 108.65% 1-Year Est. Return

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

SCM

Squadron Capital Management Westmont, Illinois $273M AUM

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

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

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

Simplex Trading's HOWL Position: Q1 2026 in Review

Simplex Trading increased its Werewolf Therapeutics (HOWL) stake by 35% in Q1 2026, buying an estimated $5.8K and bringing the position to 32,526 shares worth $27.1K. The position accounts for ﹤0.01% of the portfolio, ranked #6494.

Simplex Trading first reported a position in HOWL in Q2 2023 and has held it in 12 quarters since. The position peaked at $30K in Q3 2025. 48 funds tracked by Wall St. Rank hold HOWL as of Q1 2026.

Simplex Trading held 32,526 shares of Werewolf Therapeutics worth $27.1K as of Q1 2026.
Simplex Trading bought 8,472 Werewolf Therapeutics shares in Q1 2026, an estimated $5.8K.
Werewolf Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6494 holding.
Simplex Trading first reported a position in Werewolf Therapeutics in Q2 2023 and has held it in 12 quarters since.
Simplex Trading's Werewolf Therapeutics position peaked at $30K in Q3 2025.
48 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.