Mark T Bertolini insider trades: Oscar Health (OSCR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mark reports to the SEC
Open-market buys and sales
11 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | OSCR | ↓ Sell | 1,238,996 | $28.87 | $35.8M | Direct | Jul 1, 2026 (1d) |
| Jun 26, 2026 | OSCR | ↓ Sell | 1,206,310 | $28.94 | $34.9M | Direct | Jun 29, 2026 (3d) |
| Apr 6, 2026 | OSCR | ↑ Buy | 1,000,000 | $11.92 | $11.9M | Direct | Apr 7, 2026 (1d) |
| May 17, 2017 | AET | ↓ Sell | 103,547 | $140.79 | $14.6M | Direct | May 18, 2017 (1d) |
| May 3, 2016 | AET | ↓ Sell | 33,510 | $114.00 | $3.8M | Direct | May 4, 2016 (1d) |
| Dec 22, 2015 | AET | ↓ Sell | 26,996 | $110.00 | $3.0M | Direct | Dec 23, 2015 (1d) |
| Dec 30, 2013 | AET | ↓ Sell | 130,272 | $68.08 | $8.9M | Direct | Jan 2, 2014 (3d) |
| Dec 20, 2012 | AET | ↓ Sell | 112,000 | $46.84 | $5.2M | Direct | Dec 20, 2012 (0d) |
| Dec 28, 2011 | AET | ↓ Sell | 200,000 | $42.89 | $8.6M | Direct | Dec 30, 2011 (2d) |
| May 9, 2006 | AET | ↑ Buy | 1,570 | $38.03 | $60K | Direct | May 10, 2006 (1d) |
| May 4, 2006 | AET | ↑ Buy | 5,300 | $37.07 | $196K | Direct | May 4, 2006 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other OSCR insiders
Open-market trades in the last 12 months
About Mark T Bertolini's insider trades
Mark T Bertolini is Chief Executive Officer at Oscar Health (OSCR). Since May 4, 2006, Mark has reported 3 open-market purchases worth $12.2M and 8 sales worth $114.7M on SEC Form 4. In the last 12 months: 1 buy ($11.9M) and 2 sales ($70.7M).
Their filings also include grants and awards (40 filings), option exercises (32 filings), shares withheld for taxes (26 filings), gifts (5 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every OSCR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.