Michael Stuart Rosenthal
CIK 1832050 · Chief Operating Officer · last filed 2026-06-10
Michael Stuart Rosenthal is a Chief Operating Officer who has filed 25 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing shows the insider bought $543.0K of MP on Jun 10, 2026. Across all open-market trades the lifetime net is −$8.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $84.6M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$84.62M
2
25
-$8.05M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MP | Chief Operating Officer | 1,470,295 | $57.55 | $84.62M | -$8.05M | 23 | 2026-06-10 |
| MP Materials Corp. / DE (MP.WS) Delisted | Chief Operating Officer | 1,567,765 | $19.62 | $30.76M | $0 | 2 | 2021-03-17 |
Recent Filings
25 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-10 | MP | Buy (P) | +10,000 | $543.0K | EDGAR |
| 2026-05-20 | MP | Buy (P) | +17,000 | $962.5K | EDGAR |
| 2026-01-14 | MP | Mixed | +32,264 | -$1.27M | EDGAR |
| 2025-08-29 | MP | Sell (S) | −150,000 | -$10.80M | EDGAR |
| 2025-03-18 | MP | Tax (F) | −384 | -$10.3K | EDGAR |
| 2025-01-14 | MP | Mixed | +34,202 | -$259.4K | EDGAR |
| 2024-12-11 | MP | Other (J) | +169,078 | $0 | EDGAR |
| 2024-11-18 | MP | Tax (F) | −171,462 | -$3.13M | EDGAR |
| 2024-08-08 | MP | Buy (P) | +30,000 | $325.2K | EDGAR |
| 2024-02-20 | MP | Tax (F) | −171,462 | -$2.84M | EDGAR |