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 		$1.17M Sell
23,900
-18,800
-44% -$842K ﹤0.01% 7290
2025
Q4 		$1.88M Sell
42,700
-104,600
-71% -$3.92M ﹤0.01% 6040
2025
Q3 		$5.49M Buy
147,300
+107,300
+268% +$3.75M ﹤0.01% 4206
2025
Q2 		$1.42M Buy
40,000
+12,000
+43% +$377K ﹤0.01% 6374
2025
Q1 		$900K Sell
28,000
-36,200
-56% -$1.39M ﹤0.01% 7198
2024
Q4 		$2.77M Buy
64,200
+33,800
+111% +$1.1M ﹤0.01% 4966
2024
Q3 		$244K Buy
30,400
+16,600
+120% +$146K ﹤0.01% 9741
2024
Q2 		$115K Buy
13,800
+3,700
+37% +$45.2K ﹤0.01% 10716
2024
Q1 		$179K Buy
10,100
+7,100
+237% +$112K ﹤0.01% 10495
2023
Q4 		$56.4K Buy
3,000
+100
+3% +$1.24K ﹤0.01% 11652
2023
Q3 		$20.6K Buy
+2,900
New +$19.5K ﹤0.01% 12609
2023
Q2 		– Sell
-2,500
Closed -$20K – 15192
2023
Q1 		$20K Buy
2,500
+1,100
+79% +$11.2K ﹤0.01% 13071
2022
Q4 		$12.7K Buy
+1,400
New +$11.2K ﹤0.01% 13492
2021
Q2 		– Sell
-4,200
Closed -$213K – 14388
2021
Q1 		$213K Buy
+4,200
New +$232K ﹤0.01% 11571

Other funds holding SRRK

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 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.