Simplex Trading
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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
2026
Q2 		$91 Sell
255
-32,271
-99% -$19.7K ﹤0.01% 9104
2026
Q1 		$27.1K Buy
32,526
+8,472
+35% +$5.8K ﹤0.01% 6494
2025
Q4 		$15.3K Buy
24,054
+8,418
+54% +$10.2K ﹤0.01% 6705
2025
Q3 		$30K Buy
15,636
+8,637
+123% +$11.8K ﹤0.01% 6972
2025
Q2 		$7K Buy
6,999
+5,109
+270% +$5.26K ﹤0.01% 7551
2025
Q1 		$1K Buy
1,890
+256
+16% +$335 ﹤0.01% 8216
2024
Q4 		$2K Sell
1,634
-1,805
-52% -$3.68K ﹤0.01% 8016
2024
Q3 		$7K Buy
3,439
+3,303
+2,429% +$7.51K ﹤0.01% 7426
2024
Q2 		$0 Sell
136
-66
-33% -$317 ﹤0.01% 9212
2024
Q1 		$1K Sell
202
-5,496
-96% -$32K ﹤0.01% 8577
2023
Q4 		$21K Sell
5,698
-257
-4% -$656 ﹤0.01% 6883
2023
Q3 		$12K Buy
5,955
+5,326
+847% +$14.7K ﹤0.01% 7044
2023
Q2 		$1K Buy
+629
New +$1.77K ﹤0.01% 8630

Other funds holding HOWL

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
LCM
Lynx1 Capital Management San Juan, Puerto Rico $866M AUM 231.68% 1-Year Est. Return
SFM
Sphera Funds Management Tel Aviv, Israel $767M AUM 119.71% 1-Year Est. Return
DF
DC Funds Mclean, Virginia $1.25M AUM 26.51% 1-Year Est. Return
VA
Verdad Advisers Boston, Massachusetts $104M AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Simplex Trading's HOWL Position: Q2 2026 in Review

Simplex Trading reduced its Werewolf Therapeutics (HOWL) stake by 99% in Q2 2026, selling an estimated $19.7K and leaving 255 shares worth $91. The position accounts for ﹤0.01% of the portfolio, ranked #9104.

Simplex Trading first reported a position in HOWL in Q2 2023 and has held it in 13 quarters since. The position peaked at $30K in Q3 2025. 45 funds tracked by Wall St. Rank hold HOWL as of Q2 2026.

  • Simplex Trading held 255 shares of Werewolf Therapeutics worth $91 as of Q2 2026.
  • Simplex Trading sold 32,271 Werewolf Therapeutics shares in Q2 2026, an estimated $19.7K.
  • Werewolf Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #9104 holding.
  • Simplex Trading first reported a position in Werewolf Therapeutics in Q2 2023 and has held it in 13 quarters since.
  • Simplex Trading's Werewolf Therapeutics position peaked at $30K in Q3 2025.
  • 45 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.