Mark T. Bertolini is the Chief Executive Officer at Oscar Health, Inc. (OSCR). SEC records also connect Bertolini to VERIZON COMMUNICATIONS INC (VZ). Bertolini has reported 5 insider filings with the SEC since 2026. The most recent filing was in July 2026.
Every role Mark T. Bertolini has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
Oscar Health, Inc. (OSCR)2 filingsUpdated Aug 31, 2026
Mark T. Bertolini is Chief Executive Officer, Director of Oscar Health, Inc. (OSCR). 5 SEC Form 4 filings on record, most recently on 1 July 2026. Most recent open-market trade: sold $3.93M of OSCR on 1 July 2026. Lifetime open-market purchases: $11.92M. Lifetime open-market sales: $70.68M.
Every recent SEC Form 4 transaction Mark T. Bertolini has reported, most recent first.
InsiderAlpha's records for Mark T. Bertolini go back to 2026: 5 primary Form 4 filings, an average of 5.0 per year. The typical open-market purchase is $11.92M (1 buy totaling $11.92M). The largest single buy on record is $11.92M of OSCR in 2026. Sales side: 8 recorded sales totaling $70.68M, so the filing history runs sell-heavy by dollar value. 8 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Mark T. Bertolini files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Mark T. Bertolini is a corporate insider, tracked as Chief Executive Officer, Director of Oscar Health, Inc. (OSCR). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 1 open-market purchase ($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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