Stephen Mayo
CIK 1849061 · last filed 2026-06-05
Stephen Mayo is a corporate insider who has filed 21 SEC Form 4 insider transactions across 4 companies since 2021. The most recent filing, for SRPT, was dated Jun 5, 2026. Across all open-market trades the lifetime net is −$645.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $345.4K 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.
$345.4K
4
21
-$645.9K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SRPT | Director | 18,640 | $15.31 | $285.4K | -$603.0K | 9 | 2026-06-05 |
| MRK | Director | 100 | $119.05 | $11.9K | $0 | 6 | 2026-06-02 |
| ALLO | Director | 25,328 | $1.90 | $48.1K | -$42.9K | 5 | 2025-06-23 |
| Merck & Co., Inc. (MRKw) Delisted | Director | 100 | — | — | $0 | 1 | 2021-06-02 |
Recent Filings
21 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-05 | SRPT | Grant (A) | +16,875 | $0 | EDGAR |
| 2026-06-02 | MRK | Grant (A) | — | $0 | EDGAR |
| 2026-03-13 | SRPT | Sell (S) | −7,239 | -$123.2K | EDGAR |
| 2025-06-23 | ALLO | Grant (A) | — | $0 | EDGAR |
| 2025-06-03 | MRK | Grant (A) | — | $0 | EDGAR |
| 2025-03-11 | SRPT | Grant (A) | +2,383 | $0 | EDGAR |
| 2024-06-07 | ALLO | Grant (A) | — | $0 | EDGAR |
| 2024-06-04 | MRK | Grant (A) | — | $0 | EDGAR |
| 2024-03-06 | SRPT | Sell (S) | −3,135 | -$385.5K | EDGAR |
| 2024-03-05 | SRPT | Grant (A) | +1,846 | $0 | EDGAR |