Jane Street
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Jane Street’s Werewolf Therapeutics HOWL Stock Holding History

Jane Street’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 		$69K Sell
82,836
-74,486
-47% -$51K ﹤0.01% 10830
2025
Q4 		$99.7K Sell
157,322
-111,255
-41% -$135K ﹤0.01% 10192
2025
Q3 		$529K Sell
268,577
-106,362
-28% -$146K ﹤0.01% 7743
2025
Q2 		$409K Buy
+374,939
New +$386K ﹤0.01% 7314
2025
Q1 		– Sell
-54,713
Closed -$81K – 9901
2024
Q4 		$81K Buy
54,713
+39,564
+261% +$80.7K ﹤0.01% 8836
2024
Q3 		$32.1K Sell
15,149
-13,431
-47% -$30.6K ﹤0.01% 9238
2024
Q2 		$69.7K Sell
28,580
-128,646
-82% -$618K ﹤0.01% 8847
2024
Q1 		$1.02M Buy
157,226
+142,739
+985% +$832K ﹤0.01% 5378
2023
Q4 		$55.9K Buy
+14,487
New +$37K ﹤0.01% 8758
2023
Q1 		– Sell
-22,064
Closed -$45.2K – 9398
2022
Q4 		$45.2K Buy
+22,064
New +$57.7K ﹤0.01% 8400

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
MB
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
DF
DC Funds Mclean, Virginia $1.49M AUM 18.57% 1-Year Est. Return
SCM
Squadron Capital Management Westmont, Illinois $273M 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

Jane Street's HOWL Position: Q1 2026 in Review

Jane Street reduced its Werewolf Therapeutics (HOWL) stake by 47% in Q1 2026, selling an estimated $51K and leaving 82,836 shares worth $69K. The position accounts for ﹤0.01% of the portfolio, ranked #10830.

Jane Street first reported a position in HOWL in Q4 2022 and has held it in 10 quarters since. The position peaked at $1.02M in Q1 2024. 48 funds tracked by Wall St. Rank hold HOWL as of Q1 2026.

  • Jane Street held 82,836 shares of Werewolf Therapeutics worth $69K as of Q1 2026.
  • Jane Street sold 74,486 Werewolf Therapeutics shares in Q1 2026, an estimated $51K.
  • Werewolf Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10830 holding.
  • Jane Street first reported a position in Werewolf Therapeutics in Q4 2022 and has held it in 10 quarters since.
  • Jane Street's Werewolf Therapeutics position peaked at $1.02M in Q1 2024.
  • 48 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.