Marshall Wace’s Oscar Health OSCR Stock Holding History

Marshall Wace’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	$17.1M	Sell	598,147 -324,499	-35%	-$6.99M	0.01%	795
2026 Q1	$10.6M	Sell	922,646 -112,499	-11%	-$1.58M	0.01%	953
2025 Q4	$14.9M	Sell	1,035,145 -102,694	-9%	-$1.78M	0.01%	736
2025 Q3	$21.5M	Buy	1,137,839 +1,108,638	+3,797%	+$18.3M	0.02%	623
2025 Q2	$626K	Buy	+29,201	New	+$434K	﹤0.01%	2059
2025 Q1	–	Sell	-44,400	Closed	-$597K	–	2968
2024 Q4	$597K	Sell	44,400 -298,338	-87%	-$4.8M	﹤0.01%	1972
2024 Q3	$7.27M	Sell	342,738 -246,964	-42%	-$4.45M	0.01%	872
2024 Q2	$9.33M	Buy	+589,702	New	+$10.8M	0.01%	760
2024 Q1	–	Sell	-16,008	Closed	-$146K	–	2712
2023 Q4	$146K	Buy	+16,008	New	+$110K	﹤0.01%	2016
2021 Q2	–	Sell	-14,448	Closed	-$388K	–	2963
2021 Q1	$388K	Buy	+14,448	New	+$452K	﹤0.01%	2034

Other funds holding OSCR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Marshall Wace's OSCR Position: Q2 2026 in Review

Marshall Wace reduced its Oscar Health (OSCR) stake by 35% in Q2 2026, selling an estimated $6.99M and leaving 598,147 shares worth $17.1M. The position accounts for 0.01% of the portfolio, ranked #795.

Marshall Wace first reported a position in OSCR in Q1 2021 and has held it in 10 quarters since. The position peaked at $21.5M in Q3 2025. 404 funds tracked by Wall St. Rank hold OSCR as of Q2 2026.

Marshall Wace held 598,147 shares of Oscar Health worth $17.1M as of Q2 2026.
Marshall Wace sold 324,499 Oscar Health shares in Q2 2026, an estimated $6.99M.
Oscar Health made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #795 holding.
Marshall Wace first reported a position in Oscar Health in Q1 2021 and has held it in 10 quarters since.
Marshall Wace's Oscar Health position peaked at $21.5M in Q3 2025.
404 funds tracked by Wall St. Rank held Oscar Health as of Q2 2026.

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