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OSCR in the 13F filings

Oscar Health Inc · CUSIP 687793109

Sector · Health care services and researchTheme · Managed care
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
18 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 9 listed it in both
Shares listed
30,423,854
combined, among listed positions
Reported value
$350m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 12 buyers (opened or added shares) and 23 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -6,627,029.

Managers listing OSCR in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

30 of 30 holders

ActionFiling
D. E. Shaw & Co.5,485,285$63munder 0.1%Trimmed-602,07715 May 2026 (the filing on sec.gov)
Citadel Advisors LLC3,466,362$40munder 0.1%Added+888,33915 May 2026 (the filing on sec.gov)
Point72 Asset Management LP3,113,671$36munder 0.1%Added+253,41915 May 2026 (the filing on sec.gov)
Jane Street Group LLC2,904,105$33munder 0.1%Trimmed-2,877,72112 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP2,745,804$31munder 0.1%Added+1,598,91915 May 2026 (the filing on sec.gov)
Two Sigma Investments LP2,349,525$27munder 0.1%Trimmed-1,852,71215 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,913,902$22munder 0.1%Trimmed-846,86315 May 2026 (the filing on sec.gov)
Tudor Investment Corp1,720,794$20munder 0.1%Added+107,74515 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP1,602,569$18m0.13%Added+1,093,63315 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,198,772$14munder 0.1%Trimmed-730,14015 May 2026 (the filing on sec.gov)
Marshall Wace LLP922,646$11munder 0.1%Trimmed-112,49915 May 2026 (the filing on sec.gov)
AllianceBernstein LP358,266$5.1munder 0.1%Added+160,24415 May 2026 (the filing on sec.gov)
Millennium Management LLC414,310$4.8munder 0.1%Trimmed-1,174,70815 May 2026 (the filing on sec.gov)
Dragoneer Investment Group LLC365,573$4.2m0.14%Trimmed-291,86215 May 2026 (the filing on sec.gov)
Wellington Management Group LLP364,566$4.2munder 0.1%Trimmed-9,44915 May 2026 (the filing on sec.gov)
Invesco Ltd321,466$3.7munder 0.1%Added+18,03212 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC294,171$3.4munder 0.1%Trimmed-46,26415 May 2026 (the filing on sec.gov)
Man Group PLC269,106$3.1munder 0.1%Added+40,42515 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP165,533$1.9munder 0.1%Trimmed-178,03814 May 2026 (the filing on sec.gov)
AQR Capital Management LLC98,541$1.1munder 0.1%Trimmed-1,68715 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd85,088$976kunder 0.1%Held018 May 2026 (the filing on sec.gov)
Holocene Advisors LP84,216$966kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Walleye Capital LLC57,215$656kunder 0.1%Trimmed-114,43713 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP47,092$540kunder 0.1%Trimmed-43,43115 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC19,365$220kunder 0.1%Added+3,98113 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
13 in Q3 2024 to 8 in Q2 2026

Tracked managers listing it, at least.

051015202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
OSCR by quarter
QuarterHoldersReported valueBuyersSellers
Q1 202110$987mn.a.n.a.
Q2 20216$645mn.a.n.a.
Q3 20215$541mn.a.n.a.
Q4 20216$302mn.a.n.a.
Q1 20226$389mn.a.n.a.
Q2 20224$153mn.a.n.a.
Q3 20224$178mn.a.n.a.
Q4 20224$49mn.a.n.a.
Q1 20237$186mn.a.n.a.
Q2 20238$203mn.a.n.a.
Q3 20236$123mn.a.n.a.
Q4 20239$266m34
Q1 202412$490m64
Q2 202412$538m62
Q3 202413$667m65
Q4 202411$351m53
Q1 20258$208m34
Q2 202510$229m63
Q3 20258$210m55
Q4 202513$282m1720
Q1 20264$42m1223
Q2 20268$631m2214

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

OSCR and UNH →OSCR and ELV →OSCR and CI →Choose a stock to compare with OSCR →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own OSCR, latest filings →Back to the 13F Explorer →