Jim Simons
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Jim Simons’s Werewolf Therapeutics HOWL Stock Holding History

Jim Simons’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 		$243K Buy
674,632
+158,414
+31% +$96.5K ﹤0.01% 2837
2026
Q1 		$430K Sell
516,218
-161,548
-24% -$111K ﹤0.01% 2664
2025
Q4 		$429K Buy
677,766
+221,766
+49% +$270K ﹤0.01% 2634
2025
Q3 		$898K Buy
456,000
+139,700
+44% +$191K ﹤0.01% 2542
2025
Q2 		$345K Buy
316,300
+252,400
+395% +$260K ﹤0.01% 2993
2025
Q1 		$62.1K Buy
63,900
+7,000
+12% +$9.17K ﹤0.01% 3266
2024
Q4 		$84.2K Sell
56,900
-95,300
-63% -$194K ﹤0.01% 3311
2024
Q3 		$323K Sell
152,200
-18,800
-11% -$42.8K ﹤0.01% 2955
2024
Q2 		$417K Buy
171,000
+86,800
+103% +$417K ﹤0.01% 2781
2024
Q1 		$546K Sell
84,200
-23,306
-22% -$136K ﹤0.01% 2823
2023
Q4 		$415K Buy
107,506
+62,306
+138% +$159K ﹤0.01% 2854
2023
Q3 		$97K Buy
45,200
+2,300
+5% +$6.34K ﹤0.01% 3254
2023
Q2 		$131K Buy
42,900
+8,800
+26% +$24.8K ﹤0.01% 3408
2023
Q1 		$89K Sell
34,100
-44,123
-56% -$132K ﹤0.01% 3525
2022
Q4 		$160K Buy
78,223
+59,923
+327% +$157K ﹤0.01% 3490
2022
Q3 		$83K Buy
18,300
+1,500
+9% +$8.14K ﹤0.01% 3650
2022
Q2 		$69K Buy
+16,800
New +$76.7K ﹤0.01% 3935

Other funds holding HOWL

RA Capital Management
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
LCM
Lynx1 Capital Management San Juan, Puerto Rico $866M AUM 231.68% 1-Year Est. Return
Sphera Funds Management
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
Verdad Advisers
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
XTX Topco
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return

Jim Simons's HOWL Position: Q2 2026 in Review

Jim Simons increased its Werewolf Therapeutics (HOWL) stake by 31% in Q2 2026, buying an estimated $96.5K and bringing the position to 674,632 shares worth $243K. The position accounts for ﹤0.01% of the portfolio, ranked #2837.

Jim Simons first reported a position in HOWL in Q2 2022 and has held it in 17 quarters since. The position peaked at $898K in Q3 2025. 45 funds tracked by Wall St. Rank hold HOWL as of Q2 2026.

  • Jim Simons held 674,632 shares of Werewolf Therapeutics worth $243K as of Q2 2026.
  • Jim Simons bought 158,414 Werewolf Therapeutics shares in Q2 2026, an estimated $96.5K.
  • Werewolf Therapeutics made up ﹤0.01% of Jim Simons's portfolio in Q2 2026, its #2837 holding.
  • Jim Simons first reported a position in Werewolf Therapeutics in Q2 2022 and has held it in 17 quarters since.
  • Jim Simons's Werewolf Therapeutics position peaked at $898K in Q3 2025.
  • 45 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.