Mariner
OSCR icon

Mariner’s Oscar Health OSCR Stock Holding History

Mariner’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
Q2 		$1.42M Buy
+49,684
New +$1.07M ﹤0.01% 1702
2026
Q1 		– Sell
-12,357
Closed -$178K – 3749
2025
Q4 		$178K Sell
12,357
-6,075
-33% -$105K ﹤0.01% 3201
2025
Q3 		$349K Buy
18,432
+2,374
+15% +$39.1K ﹤0.01% 2695
2025
Q2 		$344K Buy
16,058
+1,758
+12% +$26.1K ﹤0.01% 2614
2025
Q1 		$187K Buy
14,300
+642
+5% +$9.53K ﹤0.01% 3027
2024
Q4 		$184K Sell
13,658
-4,472
-25% -$72K ﹤0.01% 3033
2024
Q3 		$384K Sell
18,130
-1,924
-10% -$34.7K ﹤0.01% 2360
2024
Q2 		$318K Sell
20,054
-3,372
-14% -$62K ﹤0.01% 2406
2024
Q1 		$348K Buy
23,426
+12,274
+110% +$168K ﹤0.01% 2316
2023
Q4 		$102K Buy
+11,152
New +$77K ﹤0.01% 2852

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 $153B AUM 38.14% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
TCMNY
Thrive Capital Management (New York) New York $3.81B AUM 45.58% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Mariner's OSCR Position: Q2 2026 in Review

Mariner opened a new position in Oscar Health (OSCR) in Q2 2026: 49,684 shares worth $1.42M. The stake represents ﹤0.01% of the portfolio and ranks #1702 among its holdings. This is a return to the name: Mariner previously reported a position in OSCR as recently as Q4 2025.

Mariner first reported a position in OSCR in Q4 2023 and has held it in 10 quarters since. 403 funds tracked by Wall St. Rank hold OSCR as of Q2 2026.

  • Mariner held 49,684 shares of Oscar Health worth $1.42M as of Q2 2026.
  • Oscar Health was a new Mariner position in Q2 2026.
  • Oscar Health made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1702 holding.
  • Mariner first reported a position in Oscar Health in Q4 2023 and has held it in 10 quarters since.
  • 403 funds tracked by Wall St. Rank held Oscar Health as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.