CHESS ROBERT — SEC Form 4 filings
SEC reporting owner CIK 1227886. 12 Form 4 filings on record with FilingPulse; latest filed 2026-08-11.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-02-09 to 2026-08-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 11 legs across 9 filings — 69,255 shares, $3,542,899 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: sale of 18,417 shares @ $110.89 ($2,042,261) in Twist Bioscience Corp, filed 2026-08-11.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Twist Bioscience Corp (TWST) | Director | 10 | — | 10 legs · 49,755 sh · $3,519,499 | 11 |
| NEKTAR THERAPEUTICS (NKTR) | Director | 2 | — | 1 leg · 19,500 sh · $23,400 | 1 |
Form 4 filings — CHESS ROBERT
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-11 | 4 | Twist Bioscience Corp (TWST) | Option exercise (M): 18,417 @ $11.89 · Sale (S): 18,417 @ $110.89 · Option exercise (M): 18,417 (derivative) @ $0 | EDGAR |
| 2026-03-19 | 4 | Twist Bioscience Corp (TWST) | Option exercise (M): 10,000 @ $11.89 · Sale (S): 10,000 @ $47 · Option exercise (M): 10,000 (derivative) @ $0 | EDGAR |
| 2026-02-18 | 4 | Twist Bioscience Corp (TWST) | Sale (S): 2,184 @ $48.26 | EDGAR |
| 2026-02-09 | 4 | Twist Bioscience Corp (TWST) | Grant/award (A): 5,095 @ $0 | EDGAR |
| 2025-10-01 | 4 | NEKTAR THERAPEUTICS (NKTR) | Grant/award (A): 8,000 (derivative) @ $0 | EDGAR |
| 2025-02-11 | 4 | Twist Bioscience Corp (TWST) | Sale (S): 2,940 @ $53.13 | EDGAR |
| 2025-02-07 | 4 | Twist Bioscience Corp (TWST) | Grant/award (A): 4,472 @ $0 | EDGAR |
| 2025-01-10 | 4 | Twist Bioscience Corp (TWST) | Sale (S): 5,000 @ $50 | EDGAR |
| 2024-12-30 | 4 | Twist Bioscience Corp (TWST) | Option exercise (M): 3,504 @ $8.82 · Sale (S): 2,795 @ $51.70 · Sale (S): 709 @ $52.45 · Option exercise (M): 3,504 (derivative) @ $0 | EDGAR |
| 2024-11-13 | 4 | Twist Bioscience Corp (TWST) | Option exercise (M): 3,600 @ $8.82 · Sale (S): 2,324 @ $46.99 · Sale (S): 1,276 @ $47.76 · Option exercise (M): 3,600 (derivative) @ $0 | EDGAR |
| 2024-06-14 | 4 | NEKTAR THERAPEUTICS (NKTR) | Sale (S): 19,500 @ $1.20 | EDGAR |
| 2024-02-09 | 4 | Twist Bioscience Corp (TWST) | Grant/award (A): 5,815 @ $0 · Sale (S): 4,110 @ $34.98 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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