Sean A. McCarthy
CIK 1654058 · CEO · last filed 2026-03-19
Sean A. McCarthy is a CEO who has filed 70 SEC Form 4 insider transactions across 1 company since 2016. The most recent filing shows the insider sold $764.1K of CTMX on Mar 19, 2026. Across all open-market trades the lifetime net is −$8.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.5M 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.
$3.53M
1
70
-$8.95M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CTMX | CEO | 1,172,080 | $3.01 | $3.53M | -$8.95M | 70 | 2026-03-19 |
Recent Filings
70 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-19 | CTMX | Sell (S) | −118,969 | -$764.1K | EDGAR |
| 2026-02-04 | CTMX | Grant (A) | +210,000 | $0 | EDGAR |
| 2025-11-10 | CTMX | Sell (S) | −101,793 | -$461.9K | EDGAR |
| 2025-09-30 | CTMX | Grant (A) | — | $0 | EDGAR |
| 2025-06-17 | CTMX | Mixed | +94,489 | -$149.3K | EDGAR |
| 2025-03-20 | CTMX | Sell (S) | −37,656 | -$22.6K | EDGAR |
| 2025-02-06 | CTMX | Grant (A) | +375,000 | $0 | EDGAR |
| 2024-08-22 | CTMX | Mixed | +23,602 | -$17.1K | EDGAR |
| 2024-03-28 | CTMX | Exer (M) | +109,768 | $172.9K | EDGAR |
| 2024-03-21 | CTMX | Sell (S) | −20,223 | -$42.2K | EDGAR |