Updated Jul 16, 2026 · Last SEC filing 2026-07-13
Oscar Health, Inc. (OSCR) has filed 19 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-13. 5 Form 8-K material event filings were reported by OSCR in the last 90 days. 11 Form 144 notices of proposed sale were filed for OSCR stock. InsiderAlpha tracks every OSCR SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Hospital & Medical Service Plans (SIC 6324) |
|---|---|
| SEC CIK | 0001568651 |
| Form 4 filings (90d) | 19 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 11 |
| Latest Form 4 filing | 2026-07-13 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Schlosser Mario | Director | S — Open-market sale | 30.2K | $31.65 | $957K | SEC | |
| Schlosser Mario | Director | S — Open-market sale | 13.7K | $30.80 | $421K | SEC | |
| Schlosser Mario | Director | J — Other acquisition / disposition | 47.5K | — | — | SEC | |
| Schlosser Mario | Director | S — Open-market sale | 3.6K | $29.50 | $106K | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 135.6K | $28.97 | $3.93M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 488.7K | $28.35 | $13.85M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 555.8K | $29.17 | $16.21M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 58.9K | $30.08 | $1.77M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 149.8K | $29.79 | $4.46M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 441.4K | $29.11 | $12.85M | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 17.2K | $29.08 | $500K | SEC | |
| Bertolini Mark T | Chief Executive Officer | S — Open-market sale | 597.9K | $28.60 | $17.10M | SEC | |
| Schlosser Mario | Director | S — Open-market sale | 33.6K | $29.58 | $994K | SEC | |
| Schlosser Mario | Director | S — Open-market sale | 16.3K | $28.95 | $472K | SEC | |
| Schlosser Mario | Director | S — Open-market sale | 102 | $30.09 | $3K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Oscar Health, Inc. (OSCR). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Schlosser Mario | 29 | $38.85M |
| Bertolini Mark T | 8 | $70.68M |
| Blackley Richard Scott | 5 | $5.76M |
| Gassen William | 2 | $21K |
| McAnaney Adam | 2 | $216K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in OSCR insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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