XT
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XTX Topco’s Werewolf Therapeutics HOWL Stock Holding History

XTX Topco’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 		$42.4K Buy
+50,929
New +$34.9K ﹤0.01% 3360
2025
Q1 		– Sell
-24,905
Closed -$36.9K – 2681
2024
Q4 		$36.9K Buy
24,905
+3,696
+17% +$7.54K ﹤0.01% 1945
2024
Q3 		$45K Buy
+21,209
New +$48.2K ﹤0.01% 1711

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

XTX Topco's HOWL Position: Q1 2026 in Review

XTX Topco opened a new position in Werewolf Therapeutics (HOWL) in Q1 2026: 50,929 shares worth $42.4K. The stake represents ﹤0.01% of the portfolio and ranks #3360 among its holdings. This is a return to the name: XTX Topco previously reported a position in HOWL as recently as Q4 2024.

XTX Topco first reported a position in HOWL in Q3 2024 and has held it in 3 quarters since. The position peaked at $45K in Q3 2024. 48 funds tracked by Wall St. Rank hold HOWL as of Q1 2026.

  • XTX Topco held 50,929 shares of Werewolf Therapeutics worth $42.4K as of Q1 2026.
  • Werewolf Therapeutics was a new XTX Topco position in Q1 2026.
  • Werewolf Therapeutics made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #3360 holding.
  • XTX Topco first reported a position in Werewolf Therapeutics in Q3 2024 and has held it in 3 quarters since.
  • XTX Topco's Werewolf Therapeutics position peaked at $45K in Q3 2024.
  • 48 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.