Ken Griffin
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Ken Griffin’s Oscar Health OSCR Stock Holding History

Ken Griffin’s Portfolio OSCR Stock Details OSCR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$24.7M Sell
2,154,200
-292,400
-12% -$4.12M ﹤0.01% 2073
2025
Q4 		$35.2M Sell
2,446,600
-65,500
-3% -$1.13M 0.01% 1755
2025
Q3 		$47.6M Buy
2,512,100
+565,600
+29% +$9.32M 0.01% 1432
2025
Q2 		$41.7M Buy
1,946,500
+1,515,200
+351% +$22.5M 0.01% 1379
2025
Q1 		$5.65M Sell
431,300
-14,400
-3% -$214K ﹤0.01% 3684
2024
Q4 		$5.99M Buy
445,700
+82,100
+23% +$1.32M ﹤0.01% 3676
2024
Q3 		$7.71M Sell
363,600
-143,400
-28% -$2.58M ﹤0.01% 3290
2024
Q2 		$8.02M Buy
507,000
+78,300
+18% +$1.44M ﹤0.01% 3061
2024
Q1 		$6.37M Buy
428,700
+375,800
+710% +$5.15M ﹤0.01% 3585
2023
Q4 		$484K Sell
52,900
-80,000
-60% -$552K ﹤0.01% 8192
2023
Q3 		$740K Sell
132,900
-15,500
-10% -$108K ﹤0.01% 7227
2023
Q2 		$1.2M Sell
148,400
-50,000
-25% -$369K ﹤0.01% 6087
2023
Q1 		$1.3M Buy
198,400
+41,100
+26% +$168K ﹤0.01% 6241
2022
Q4 		$387K Buy
157,300
+41,200
+35% +$129K ﹤0.01% 8785
2022
Q3 		$579K Buy
116,100
+7,400
+7% +$43.2K ﹤0.01% 8144
2022
Q2 		$462K Sell
108,700
-9,600
-8% -$61.1K ﹤0.01% 8822
2022
Q1 		$1.18M Buy
118,300
+54,900
+87% +$408K ﹤0.01% 7330
2021
Q4 		$498K Sell
63,400
-137,300
-68% -$1.72M ﹤0.01% 9705
2021
Q3 		$3.49M Buy
200,700
+171,600
+590% +$2.91M ﹤0.01% 5033
2021
Q2 		$626K Sell
29,100
-25,900
-47% -$620K ﹤0.01% 9515
2021
Q1 		$1.48M Buy
+55,000
New +$1.72M ﹤0.01% 7147

Other funds holding OSCR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
TCMNY
Thrive Capital Management (New York) New York $344M AUM 25.6% 1-Year Est. Return
BC
BIT Capital Berlin, Germany $3.38B AUM 214.12% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Ken Griffin's OSCR Position: Q1 2026 in Review

Ken Griffin increased its Oscar Health (OSCR) stake by 34% in Q1 2026, buying an estimated $12.5M and bringing the position to 3,466,362 shares worth $39.8M. The position accounts for 0.01% of the portfolio, ranked #1572.

Ken Griffin first reported a position in OSCR in Q2 2021 and has held it in 20 quarters since. The position peaked at $94.8M in Q3 2024. 332 funds tracked by Wall St. Rank hold OSCR as of Q1 2026.

  • Ken Griffin held 3,466,362 shares of Oscar Health worth $39.8M as of Q1 2026.
  • Ken Griffin bought 888,339 Oscar Health shares in Q1 2026, an estimated $12.5M.
  • Oscar Health made up 0.01% of Ken Griffin's portfolio in Q1 2026, its #1572 holding.
  • Ken Griffin first reported a position in Oscar Health in Q2 2021 and has held it in 20 quarters since.
  • Ken Griffin's Oscar Health position peaked at $94.8M in Q3 2024.
  • 332 funds tracked by Wall St. Rank held Oscar Health as of Q1 2026.

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