Ken Griffin
SRRK icon

Ken Griffin’s Scholar Rock SRRK Stock Holding History

Ken Griffin’s Portfolio SRRK Stock Details SRRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$44.3M Buy
900,799
+404,853
+82% +$18.1M 0.01% 1473
2025
Q4 		$21.8M Buy
495,946
+361,336
+268% +$13.6M ﹤0.01% 2250
2025
Q3 		$5.01M Sell
134,610
-842,015
-86% -$29.5M ﹤0.01% 4360
2025
Q2 		$34.6M Buy
976,625
+9,076
+0.9% +$285K 0.01% 1541
2025
Q1 		$31.1M Sell
967,549
-750,510
-44% -$28.9M 0.01% 1561
2024
Q4 		$74.3M Buy
1,718,059
+934,585
+119% +$30.4M 0.01% 945
2024
Q3 		$6.28M Buy
783,474
+670,478
+593% +$5.89M ﹤0.01% 3589
2024
Q2 		$941K Sell
112,996
-531,793
-82% -$6.5M ﹤0.01% 6706
2024
Q1 		$11.5M Buy
644,789
+105,939
+20% +$1.67M ﹤0.01% 2770
2023
Q4 		$10.1M Buy
538,850
+493,130
+1,079% +$6.13M ﹤0.01% 2823
2023
Q3 		$325K Buy
+45,720
New +$307K ﹤0.01% 9016
2023
Q2 		– Sell
-108,134
Closed -$865K – 15191
2023
Q1 		$865K Sell
108,134
-8,029
-7% -$81.4K ﹤0.01% 7108
2022
Q4 		$1.05M Sell
116,163
-186,963
-62% -$1.5M ﹤0.01% 6721
2022
Q3 		$2.1M Buy
303,126
+83,259
+38% +$694K ﹤0.01% 5495
2022
Q2 		$1.21M Sell
219,867
-3,846
-2% -$27.6K ﹤0.01% 6588
2022
Q1 		$2.88M Buy
+223,713
New +$3.82M ﹤0.01% 5290
2021
Q4 		– Sell
-81,570
Closed -$2.69M – 14714
2021
Q3 		$2.69M Sell
81,570
-69,011
-46% -$2.42M ﹤0.01% 5623
2021
Q2 		$4.35M Buy
150,581
+101,706
+208% +$3.11M ﹤0.01% 4736
2021
Q1 		$2.48M Sell
48,875
-88,591
-64% -$4.9M ﹤0.01% 5901
2020
Q4 		$6.67M Buy
137,466
+53,859
+64% +$1.96M ﹤0.01% 3199
2020
Q3 		$1.48M Buy
83,607
+37,338
+81% +$555K ﹤0.01% 5295
2020
Q2 		$842K Buy
46,269
+30,430
+192% +$519K ﹤0.01% 6153
2020
Q1 		$192K Sell
15,839
-18,769
-54% -$252K ﹤0.01% 8049
2019
Q4 		$456K Buy
34,608
+1,663
+5% +$16K ﹤0.01% 6964
2019
Q3 		$295K Buy
32,945
+9,010
+38% +$108K ﹤0.01% 7581
2019
Q2 		$380K Buy
+23,935
New +$443K ﹤0.01% 7229

Other funds holding SRRK

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
RG
Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Ken Griffin's SRRK Position: Q1 2026 in Review

Ken Griffin increased its Scholar Rock (SRRK) stake by 82% in Q1 2026, buying an estimated $18.1M and bringing the position to 900,799 shares worth $44.3M. The position accounts for 0.01% of the portfolio, ranked #1473.

Ken Griffin first reported a position in SRRK in Q2 2019 and has held it in 26 quarters since. The position peaked at $74.3M in Q4 2024. 274 funds tracked by Wall St. Rank hold SRRK as of Q1 2026.

  • Ken Griffin held 900,799 shares of Scholar Rock worth $44.3M as of Q1 2026.
  • Ken Griffin bought 404,853 Scholar Rock shares in Q1 2026, an estimated $18.1M.
  • Scholar Rock made up 0.01% of Ken Griffin's portfolio in Q1 2026, its #1473 holding.
  • Ken Griffin first reported a position in Scholar Rock in Q2 2019 and has held it in 26 quarters since.
  • Ken Griffin's Scholar Rock position peaked at $74.3M in Q4 2024.
  • 274 funds tracked by Wall St. Rank held Scholar Rock as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.