PHS
HOWL icon

PFM Health Sciences’s Werewolf Therapeutics HOWL Stock Holding History

PFM Health Sciences’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
Q4 		– Sell
-401,110
Closed -$790K – 88
2025
Q3 		$790K Hold
401,110
– – 0.06% 72
2025
Q2 		$437K Sell
401,110
-2,105,410
-84% -$2.17M 0.04% 57
2025
Q1 		$2.44M Sell
2,506,520
-398,945
-14% -$522K 0.18% 52
2024
Q4 		$4.3M Sell
2,905,465
-493,282
-15% -$1.01M 0.27% 58
2024
Q3 		$7.21M Buy
3,398,747
+157,673
+5% +$359K 0.41% 45
2024
Q2 		$7.91M Buy
3,241,074
+234,340
+8% +$1.13M 0.39% 51
2024
Q1 		$19.5M Sell
3,006,734
-461,443
-13% -$2.69M 0.92% 40
2023
Q4 		$13.4M Buy
3,468,177
+909,895
+36% +$2.32M 0.8% 42
2023
Q3 		$5.47M Buy
2,558,282
+254,391
+11% +$701K 0.26% 63
2023
Q2 		$7.03M Buy
2,303,891
+86,671
+4% +$244K 0.27% 65
2023
Q1 		$5.76M Buy
2,217,220
+923,927
+71% +$2.75M 0.25% 65
2022
Q4 		$2.65M Sell
1,293,293
-1,522,361
-54% -$3.98M 0.09% 78
2022
Q3 		$12.7M Buy
2,815,654
+1,084,931
+63% +$5.89M 0.46% 59
2022
Q2 		$7.08M Buy
1,730,723
+1,145,396
+196% +$5.23M 0.27% 67
2022
Q1 		$2.58M Buy
585,327
+185,327
+46% +$1.3M 0.1% 68
2021
Q4 		$4.76M Hold
400,000
– – 0.16% 64
2021
Q3 		$6.86M Hold
400,000
– – 0.2% 69
2021
Q2 		$6.98M Buy
+400,000
New +$5.48M 0.22% 70

Other funds holding HOWL

RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
MB
MPM BioImpact Boston, Massachusetts $1.29B AUM 141.72% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

PFM Health Sciences's HOWL Position: Q4 2025 in Review

PFM Health Sciences sold out of Werewolf Therapeutics (HOWL) in Q4 2025, closing a stake of 401,110 shares — an estimated $790K sold.

PFM Health Sciences first reported a position in HOWL in Q2 2021 and held it in 18 quarters. The position peaked at $19.5M in Q1 2024. 51 funds tracked by Wall St. Rank hold HOWL as of Q4 2025.

  • PFM Health Sciences reported no remaining Werewolf Therapeutics position as of Q4 2025 after selling out during the quarter.
  • PFM Health Sciences sold 401,110 Werewolf Therapeutics shares in Q4 2025, an estimated $790K.
  • PFM Health Sciences first reported a position in Werewolf Therapeutics in Q2 2021 and held it in 18 quarters.
  • PFM Health Sciences's Werewolf Therapeutics position peaked at $19.5M in Q1 2024.
  • 51 funds tracked by Wall St. Rank held Werewolf Therapeutics as of Q4 2025.

Based on PFM Health Sciences's 13F filing for Q4 2025, filed 17 Feb 2026.