John Brendan Doyle
CIK 1840738 · Chief Financial Officer · last filed 2026-05-04
John Brendan Doyle is a Chief Financial Officer who has filed 14 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing shows the insider had shares withheld for taxes covering $11.0K of CGTX on May 4, 2026. Across all open-market trades the lifetime net is +$11.3K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $748.9K 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.
$748.9K
2
14
$11.3K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CGTX | Chief Financial Officer | 618,942 | $1.21 | $748.9K | $11.3K | 12 | 2026-05-04 |
| CHIASMA, INC (CHMA) Delisted | Chief Financial Officer | — | $3.76 | — | $0 | 2 | 2021-08-05 |
Recent Filings
14 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-04 | CGTX | Tax (F) | −8,567 | -$11.0K | EDGAR |
| 2026-04-20 | CGTX | Buy (P) | +10,000 | $11.3K | EDGAR |
| 2026-02-18 | CGTX | Tax (F) | −1,560 | -$1.7K | EDGAR |
| 2026-02-05 | CGTX | Mixed | +173,079 | -$27.7K | EDGAR |
| 2025-12-22 | CGTX | Mixed | +20,640 | -$14.0K | EDGAR |
| 2025-07-31 | CGTX | Mixed | +20,640 | -$6.3K | EDGAR |
| 2025-05-02 | CGTX | Tax (F) | −9,692 | -$4.3K | EDGAR |
| 2025-02-18 | CGTX | Tax (F) | −1,723 | -$1.0K | EDGAR |
| 2025-02-04 | CGTX | Grant (A) | +295,000 | $0 | EDGAR |
| 2024-05-03 | CGTX | Tax (F) | −8,699 | -$17.0K | EDGAR |