ROBERT CHESS
CIK 1227886 · Chairman of the Board · last filed 2026-03-19
ROBERT CHESS is a Chairman of the Board who has filed 84 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for TWST, was dated Mar 19, 2026. Across all open-market trades the lifetime net is −$13.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $20.1M 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.
$20.13M
3
84
-$13.52M
Holdings By Company
Recent Filings
84 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-19 | TWST | Mixed | — | -$351.1K | EDGAR |
| 2026-02-18 | TWST | Sell (S) | −2,184 | -$105.4K | EDGAR |
| 2026-02-09 | TWST | Grant (A) | +5,095 | $0 | EDGAR |
| 2025-10-01 | NKTR | Grant (A) | — | $0 | EDGAR |
| 2025-02-11 | TWST | Sell (S) | −2,940 | -$156.2K | EDGAR |
| 2025-02-07 | TWST | Grant (A) | +4,472 | $0 | EDGAR |
| 2025-01-10 | TWST | Sell (S) | −5,000 | -$250.0K | EDGAR |
| 2024-12-30 | TWST | Mixed | — | -$150.8K | EDGAR |
| 2024-11-13 | TWST | Mixed | — | -$138.4K | EDGAR |
| 2024-06-14 | NKTR | Sell (S) | −19,500 | -$23.4K | EDGAR |