13 insiders reported 110 Form 4 transactions for Oscar Health, Inc. (OSCR) over the past 18 months (most recent 2026-08-20). Recent activity: Blackley Richard Scott (Chief Financial Officer) Sell 18,750 shares, Schlosser Mario (Director) Buy 47,500 shares, Schlosser Mario (Director) Sell 3,600 shares, Schlosser Mario (Director) Sell 13,672 shares, Schlosser Mario (Director) Sell 30,228 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Blackley Richard Scott | Chief Financial Officer | Sell | 18,750 | $595,125 |
| 2026-07-06 | Schlosser Mario | Director | Buy | 47,500 | $0 |
| 2026-07-06 | Schlosser Mario | Director | Sell | 3,600 | $106,200 |
| 2026-07-06 | Schlosser Mario | Director | Sell | 13,672 | $421,098 |
| 2026-07-06 | Schlosser Mario | Director | Sell | 30,228 | $956,716 |
| 2026-07-01 | Bertolini Mark T | Chief Executive Officer | Sell | 555,826 | $16.2M |
| 2026-07-01 | Bertolini Mark T | Chief Executive Officer | Sell | 58,926 | $1.8M |
| 2026-07-01 | Bertolini Mark T | Chief Executive Officer | Sell | 488,654 | $13.9M |
| 2026-07-01 | Bertolini Mark T | Chief Executive Officer | Sell | 135,590 | $3.9M |
| 2026-06-29 | Bertolini Mark T | Chief Executive Officer | Sell | 597,942 | $17.1M |
| 2026-06-29 | Bertolini Mark T | Chief Executive Officer | Sell | 17,200 | $500,176 |
| 2026-06-29 | Bertolini Mark T | Chief Executive Officer | Sell | 441,373 | $12.8M |
| 2026-06-29 | Bertolini Mark T | Chief Executive Officer | Sell | 149,795 | $4.5M |
| 2026-06-25 | Schlosser Mario | Director | Sell | 33,591 | $993,622 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 286,988 | $8.3M |
| 2026-06-25 | Schlosser Mario | Director | Sell | 591,213 | $17.5M |
| 2026-06-25 | Schlosser Mario | Director | Sell | 1,799 | $54,132 |
| 2026-06-25 | Schlosser Mario | Director | Buy | 50,000 | $0 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 16,307 | $472,088 |
| 2026-06-25 | Schlosser Mario | Director | Buy | 880,000 | $0 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 102 | $3,069 |
| 2026-06-25 | Schlosser Mario | Director | Buy | 50,000 | $0 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 16,306 | $472,059 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 33,592 | $993,651 |
| 2026-06-25 | Schlosser Mario | Director | Sell | 102 | $3,069 |
Source: SEC Form 4 filings · as of 2026-08-20