MICHAEL THOMAS HENDERSON
CIK 1779990 · Chief Executive Officer · last filed 2026-05-29
"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.
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Disclosed Exposure
$125.73M
Companies
4
Total Filings
51
Lifetime Open-Market Net
-$32.60M
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 |
|---|---|---|---|---|---|---|---|
| SYRE | Director | 107,875 | $80.79 | $8.72M | -$5.95M | 6 | 2026-05-29 |
| APGE | Chief Executive Officer | 1,117,328 | $88.33 | $98.69M | -$23.01M | 22 | 2026-05-15 |
| ARYA Sciences Acquisition Corp IV (ARYD) Delisted | Director | — | $6.64 | — | $0 | 1 | 2024-07-31 |
| BBIO | Chief Business Officer | 274,211 | $66.80 | $18.32M | -$3.64M | 22 | 2020-12-17 |
Recent Filings · Page 2 of 6
51 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-12-12 | APGE | Sell (S) | −20,000 | -$1.51M | EDGAR |
| 2025-12-05 | APGE | Sell (S) | −40,000 | -$3.00M | EDGAR |
| 2025-11-13 | APGE | Sell (S) | −20,000 | -$1.26M | EDGAR |
| 2025-06-02 | SYRE | Grant (A) | — | $0 | EDGAR |
| 2025-03-07 | APGE | Sell (S) | −10,000 | -$301.5K | EDGAR |
| 2025-02-07 | APGE | Sell (S) | −15,000 | -$608.7K | EDGAR |
| 2025-01-31 | APGE | Exer (M) | +8,500 | $194.3K | EDGAR |
| 2025-01-14 | SYRE | Other (J) | +105,379 | $0 | EDGAR |
| 2025-01-10 | APGE | Sell (S) | −15,000 | -$732.7K | EDGAR |
| 2024-12-11 | APGE | 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.