Stephen Mayo
CIK 1849061 · last filed 2026-06-05
"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.
Loading insider history…
Disclosed Exposure
$345.4K
Companies
4
Total Filings
21
Lifetime Open-Market Net
-$645.9K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 3
21 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-08-09 | ALLO | Sell (S) | −10,000 | -$42.9K | EDGAR |
| 2023-06-15 | ALLO | Grant (A) | — | $0 | EDGAR |
| 2023-05-31 | MRK | Grant (A) | — | $0 | EDGAR |
| 2023-03-08 | SRPT | Grant (A) | +1,523 | $0 | EDGAR |
| 2022-11-21 | SRPT | Sell (S) | −858 | -$94.3K | EDGAR |
| 2022-07-12 | ALLO | Grant (A) | +35,328 | $0 | EDGAR |
| 2022-06-01 | MRK | Grant (A) | — | $0 | EDGAR |
| 2022-03-09 | SRPT | Grant (A) | +2,953 | $0 | EDGAR |
| 2021-11-17 | SRPT | Grant (A) | +4,292 | $0 | EDGAR |
| 2021-06-02 | Merck & Co., Inc. (MRKw) Delisted | Grant (A) | — | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.