Oscar Health, Inc.
Oscar Health, Inc. (OSCR) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · OSCR · as of Sep 30, 2025
Ownership Breakdown
386
Institutional Holders
▲ 15 vs Q2
$3.52B
Total Inst. Value
▼ $94.46M vs Q2
259.27M
Shares Outstanding
freeFloat 95.17%
149.90M
13F Shares Held
▼ 18.71M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
OSCR largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC hospital & medical service plans | 20.16M | 7.96% | 7.96% | $381.64B | Nov 7, 2025 | ▲ 423.2K |
BLACKROCK, INC. hospital & medical service plans | 16.19M | 6.39% | 6.39% | $306.41B | Nov 12, 2025 | ▲ 426.9K |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. hospital & medical service plans | 8.31M | 3.28% | 3.28% | $157.26B | Nov 14, 2025 | ▼ 4.34M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP hospital & medical service plans | 7.43M | 2.93% | 2.93% | $140.64B | Nov 14, 2025 | ▲ 4.95M |
THRIVE CAPITAL MANAGEMENT, LLC hospital & medical service plans | 6.34M | 2.50% | 2.50% | $120.08B | Nov 14, 2025 | — held |
AMERICAN CENTURY COMPANIES INC hospital & medical service plans | 5.30M | 2.09% | 2.09% | $100.30B | Nov 12, 2025 | ▲ 2.50M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP hospital & medical service plans | 5.14M | 2.03% | 2.03% | $97.30B | Nov 14, 2025 | ▲ 2.41M |
STATE STREET CORP hospital & medical service plans | 5.13M | 2.03% | 2.03% | $97.15B | Nov 14, 2025 | ▼ 268.6K |
MORGAN STANLEY hospital & medical service plans | 4.77M | 1.88% | 1.88% | $90.30B | May 27, 2026 | ▲ 2.04M |
GEODE CAPITAL MANAGEMENT, LLC hospital & medical service plans | 4.68M | 1.85% | 1.85% | $88.64B | Nov 12, 2025 | ▲ 175.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
32
Increased
+34.47M shares6
New Positions
first time holders9
Decreased
−17.07M shares0
Sold Out
fully exitedNet shares change (top 50)
+17.40M
+34.47M / −17.07M
Net new holders
+29
6 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
OSCR insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
6
Buy transactions
15
Sell transactions
0.40
Buy/Sell ratio
$7M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Lang Laura W director | Jun 4, 2026 | Award | 8,475 | — | — | 82.8K | Form 4 ↗ |
Plouffe David director | Jun 4, 2026 | Award | 8,475 | — | — | 137.1K | Form 4 ↗ |
Sankaran Sid director | Jun 4, 2026 | Award | 8,475 | — | — | 22.6K | Form 4 ↗ |
Gassen William director | Jun 4, 2026 | Award | 8,475 | — | — | 82.8K | Form 4 ↗ |
WITTMAN VANESSA AMES director | Jun 4, 2026 | Award | 8,475 | — | — | 137.1K | Form 4 ↗ |
Baltrus Victoria Chief Accounting Officer | Jun 2, 2026 | Sale | 1,091 | $21.74 | $23.7K | 215.0K | Form 4 ↗ |
Baltrus Victoria Chief Accounting Officer | Jun 2, 2026 | Sale | 432 | $22.45 | $9.7K | 214.6K | Form 4 ↗ |
Schlosser Mario director | Jun 2, 2026 | Sale | 24,452 | $21.74 | $531.6K | 490.5K | Form 4 ↗ |
Schlosser Mario director | Jun 2, 2026 | Sale | 9,668 | $22.45 | $217.0K | 480.9K | Form 4 ↗ |
McAnaney Adam Chief Legal Officer | Jun 2, 2026 | Sale | 7,065 | $21.74 | $153.6K | 220.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Oscar Health, Inc. (OSCR) is primarily owned by institutional investors, who hold approximately 57.8% of total shares outstanding. Company insiders own approximately 4.83%, while retail and public investors account for the remaining 37.36%.
The largest institutional shareholder of Oscar Health, Inc. is VANGUARD GROUP INC, holding approximately 20.16 million shares — equal to 7.96% of outstanding shares — as of September 30, 2025.
A total of 386 institutional investors currently hold OSCR stock, with a combined institutional value of approximately $3.52 billion as of the most recent 13F filing period.
Frequently asked questions
OSCR ownershipOscar Health, Inc. (OSCR) is primarily owned by institutional investors, who hold approximately 57.8% of shares. The largest shareholder is VANGUARD GROUP INC with a 7.96% stake. Company insiders hold 4.83%. Data sourced from SEC Form 13F as of September 30, 2025.