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 		$3.04M Buy
61,800
+26,500
+75% +$1.19M ﹤0.01% 5241
2025
Q4 		$1.55M Sell
35,300
-112,300
-76% -$4.21M ﹤0.01% 6432
2025
Q3 		$5.5M Buy
147,600
+98,300
+199% +$3.44M ﹤0.01% 4201
2025
Q2 		$1.75M Buy
49,300
+12,100
+33% +$380K ﹤0.01% 5963
2025
Q1 		$1.2M Sell
37,200
-62,100
-63% -$2.39M ﹤0.01% 6562
2024
Q4 		$4.29M Buy
99,300
+67,800
+215% +$2.21M ﹤0.01% 4206
2024
Q3 		$252K Buy
31,500
+23,900
+314% +$210K ﹤0.01% 9654
2024
Q2 		$63.3K Buy
7,600
+2,100
+38% +$25.7K ﹤0.01% 11504
2024
Q1 		$97.7K Sell
5,500
-16,100
-75% -$253K ﹤0.01% 11387
2023
Q4 		$406K Buy
21,600
+14,500
+204% +$180K ﹤0.01% 8537
2023
Q3 		$50.4K Buy
+7,100
New +$47.7K ﹤0.01% 11754
2023
Q2 		– Sell
-5,300
Closed -$42.4K – 15190
2023
Q1 		$42.4K Buy
5,300
+5,000
+1,667% +$50.7K ﹤0.01% 12374
2022
Q4 		$2.71K Buy
+300
New +$2.41K ﹤0.01% 14295
2022
Q3 		– Sell
-64,300
Closed -$353K – 13562
2022
Q2 		$353K Sell
64,300
-19,400
-23% -$139K ﹤0.01% 9438
2022
Q1 		$1.08M Buy
+83,700
New +$1.43M ﹤0.01% 7517
2021
Q2 		– Sell
-4,200
Closed -$213K – 14387
2021
Q1 		$213K Buy
+4,200
New +$232K ﹤0.01% 11570

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.