Bertolini Mark T (CIK 1352552) reported 9 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Sell OSCR (555,826 shares), Sell OSCR (58,926 shares), Sell OSCR (488,654 shares), Sell OSCR (135,590 shares), Buy OSCR (5.7M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Sell | 555,826 | $16.2M |
| 2026-07-01 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Sell | 58,926 | $1.8M |
| 2026-07-01 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Sell | 488,654 | $13.9M |
| 2026-07-01 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Sell | 135,590 | $3.9M |
| 2026-04-07 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Buy | 5.7M | $0 |
| 2026-04-07 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Sell | 1.0M | $11.9M |
| 2026-04-07 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Buy | 1.0M | $11.9M |
| 2026-03-04 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Buy | 1.6M | $0 |
| 2025-04-07 | Oscar Health, Inc. (OSCR) | Chief Executive Officer | Buy | 955,556 | $0 |
Source: SEC Form 4 filings · as of 2026-07-01