Chess Robert insider trades
Chess Robert has filed 28 Form 4s with the SEC that we hold, for Twist Bioscience Corp (TWST) (Director) and Nektar Therapeutics (NKTR) (Director). Across all of them we count 0 purchases worth $0 and 30 sales worth $6.0M reported on Form 4. In the last 12 months: 0 purchases ($0) and 3 sales ($2.6M). The largest single trade was a sale of 18,417 shares of Twist Bioscience Corp worth $2.0M, dated 2026-08-07. The first filing on our record is dated 2021-07-14 and the latest 2026-09-25.
Twist Bioscience Corp (TWST)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-07-12 | S, sale reported on Form 4 | 2,495 | $313.0K | 2021-07-14 |
| 2021-07-12 | S, sale reported on Form 4 | 240 | $31.3K | 2021-07-14 |
| 2021-07-12 | S, sale reported on Form 4 | 300 | $38.5K | 2021-07-14 |
| 2021-07-12 | S, sale reported on Form 4 | 200 | $25.4K | 2021-07-14 |
| 2021-07-12 | S, sale reported on Form 4 | 155 | $19.5K | 2021-07-14 |
| 2021-07-12 | S, sale reported on Form 4 | 610 | $75.9K | 2021-07-14 |
| 2021-09-10 | S, sale reported on Form 4 | 4,000 | $480.9K | 2021-09-14 |
| 2021-10-19 | S, sale reported on Form 4 | 300 | $36.0K | 2021-10-21 |
| 2021-10-21 | S, sale reported on Form 4 | 3,700 | $444.6K | 2021-10-25 |
| 2021-11-01 | S, sale reported on Form 4 | 4,000 | $480.6K | 2021-11-03 |
| 2022-02-04 | S, sale reported on Form 4 | 253 | $14.9K | 2022-02-08 |
| 2024-02-08 | S, sale reported on Form 4 | 4,110 | $143.8K | 2024-02-09 |
| 2024-11-11 | S, sale reported on Form 4 | 1,276 | $60.9K | 2024-11-13 |
| 2024-11-11 | S, sale reported on Form 4 | 2,324 | $109.2K | 2024-11-13 |
| 2024-12-05 | S, sale reported on Form 4 | 709 | $37.2K | 2024-12-30 |
| 2024-12-05 | S, sale reported on Form 4 | 2,795 | $144.5K | 2024-12-30 |
| 2025-01-07 | S, sale reported on Form 4 | 5,000 | $250.0K | 2025-01-10 |
| 2025-02-07 | S, sale reported on Form 4 | 2,940 | $156.2K | 2025-02-11 |
| 2026-02-13 | S, sale reported on Form 4 | 2,184 | $105.4K | 2026-02-18 |
| 2026-03-17 | S, sale reported on Form 4 | 10,000 | $470.0K | 2026-03-19 |
| 2026-08-07 | S, sale reported on Form 4 | 18,417 | $2.0M | 2026-08-11 |
Nektar Therapeutics (NKTR)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-07-20 | S, sale reported on Form 4 | 2,106 | $35.4K | 2021-07-22 |
| 2021-07-21 | S, sale reported on Form 4 | 3,524 | $59.2K | 2021-07-22 |
| 2021-07-22 | S, sale reported on Form 4 | 91 | $1.5K | 2021-07-22 |
| 2021-09-08 | S, sale reported on Form 4 | 8,000 | $128.0K | 2021-09-10 |
| 2021-09-09 | S, sale reported on Form 4 | 10,279 | $164.7K | 2021-09-10 |
| 2021-09-22 | S, sale reported on Form 4 | 4,600 | $82.5K | 2021-09-24 |
| 2022-09-22 | S, sale reported on Form 4 | 5,100 | $16.3K | 2022-09-26 |
| 2022-09-22 | S, sale reported on Form 4 | 10,200 | $6.8K | 2023-09-20 |
| 2024-06-14 | S, sale reported on Form 4 | 19,500 | $23.4K | 2024-06-14 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1227886) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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