Updated Jul 16, 2026
Bertolini Mark T has filed 2 SEC Form 4 filings across 1 company in the last 90 days — active on both sides. Lifetime open-market purchases: $11.92M. Lifetime open-market sales: $70.68M.

Mark T. Bertolini is an American businessman known for his role as the Chief Executive Officer of Oscar Health, Inc. He has a background in the healthcare industry and has previously held executive positions at Aetna, where he served as Chairman and CEO. Bertolini is recognized for his contributions to health insurance and technology integration in healthcare services.
| Role | Chief Executive Officer, Director |
|---|---|
| Notability | 75/100 |
| Links | Wikipedia |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-01 | OSCR | Oscar Health, Inc. | S — Open-market sale | 135.6K | $28.97 | $3.93M |
| 2026-07-01 | OSCR | Oscar Health, Inc. | S — Open-market sale | 488.7K | $28.35 | $13.85M |
| 2026-07-01 | OSCR | Oscar Health, Inc. | S — Open-market sale | 58.9K | $30.08 | $1.77M |
| 2026-07-01 | OSCR | Oscar Health, Inc. | S — Open-market sale | 555.8K | $29.17 | $16.21M |
| 2026-06-29 | OSCR | Oscar Health, Inc. | S — Open-market sale | 149.8K | $29.79 | $4.46M |
| 2026-06-29 | OSCR | Oscar Health, Inc. | S — Open-market sale | 441.4K | $29.11 | $12.85M |
| 2026-06-29 | OSCR | Oscar Health, Inc. | S — Open-market sale | 17.2K | $29.08 | $500K |
| 2026-06-29 | OSCR | Oscar Health, Inc. | S — Open-market sale | 597.9K | $28.60 | $17.10M |
| 2026-04-07 | OSCR | Oscar Health, Inc. | P — Open-market purchase [10b5-1] | 1.00M | $11.92 | $11.92M |
| 2026-04-07 | OSCR | Oscar Health, Inc. | F — Tax withholding / forfeiture [10b5-1] | 1.00M | $11.92 | $11.92M |
| 2026-04-07 | OSCR | Oscar Health, Inc. | M — Option exercise [10b5-1] | 5.73M | — | |
| 2026-03-04 | OSCR | Oscar Health, Inc. | A — Grant or award | 1.60M | $0.00 |
Mark T. Bertolini is an American businessman known for his role as the Chief Executive Officer of Oscar Health, Inc. He has a background in the healthcare industry and has previously held executive positions at Aetna, where he served as Chairman and CEO. Bertolini is recognized for his contributions to health insurance and technology integration in healthcare services.…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 1 open-market purchases ($11.92M) and 8 open-market sales ($70.68M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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