Robert Chess sold Twist Bioscience Corp ($TWST) shares once on the open market in the last 365 days, totaling $105,402. His most recent sale occurred on February 13, 2026. These sales rank 9,492nd among 11,678 individual insiders, far below the average of $8.6 million per insider and 6.4 transactions. Chess made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 17, 2026 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Common Stock | 10000 | $11.89 | 73,612.0000 | 61,311,704 | 15.72% | 0.02% |
| March 17, 2026 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Stock Option (right to buy) | 10000 | $0.00 | 18,417.0000 | 61,311,704 | 35.19% | 0.02% |
| March 17, 2026 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 10000 | $47.00 | 63,612.0000 | 61,311,704 | 13.58% | 0.02% |
| Feb. 13, 2026 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 2184 | $48.26 | 63,612.0000 | 61,311,704 | 3.32% | 0.00% |
| Feb. 5, 2026 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | A | Common Stock | 5095 | $0.00 | 65,796.0000 | 61,311,704 | 8.39% | 0.01% |
| Sept. 30, 2025 | NEKTAR THERAPEUTICS | $NKTR | CHESS ROBERT | Not found | A | Stock Option | 8000 | $0.00 | 8,000.0000 | 205,661,000 | 9999.99% | 0.00% |
| Feb. 7, 2025 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 2940 | $53.14 | 60,701.0000 | 58,016,000 | 4.62% | 0.01% |
| Feb. 5, 2025 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | A | Common Stock | 4472 | $0.00 | 63,641.0000 | 58,016,000 | 7.56% | 0.01% |
| Sept. 18, 2024 | NEKTAR THERAPEUTICS | $NKTR | CHESS ROBERT | Not found | A | Stock Option | 120000 | $0.00 | 120,000.0000 | 190,001,000 | 9999.99% | 0.06% |
| Jan. 7, 2025 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 5000 | $50.00 | 59,169.0000 | 58,016,000 | 7.79% | 0.01% |
| Dec. 5, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Common Stock | 3504 | $8.82 | 67,673.0000 | 58,016,000 | 5.46% | 0.01% |
| Dec. 5, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 2795 | $51.70 | 64,878.0000 | 58,016,000 | 4.13% | 0.00% |
| Dec. 5, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Stock Option (right to buy) | 3504 | $0.00 | 0.0000 | 58,016,000 | 100.00% | 0.01% |
| Dec. 5, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 709 | $52.45 | 64,169.0000 | 58,016,000 | 1.09% | 0.00% |
| Nov. 11, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Common Stock | 3600 | $8.82 | 67,769.0000 | 58,016,000 | 5.61% | 0.01% |
| Nov. 11, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 2324 | $46.99 | 65,445.0000 | 58,016,000 | 3.43% | 0.00% |
| Nov. 11, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 1276 | $47.76 | 64,169.0000 | 58,016,000 | 1.95% | 0.00% |
| Nov. 11, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | M | Stock Option (right to buy) | 3600 | $0.00 | 3,504.0000 | 58,016,000 | 50.68% | 0.01% |
| June 14, 2024 | NEKTAR THERAPEUTICS | $NKTR | CHESS ROBERT | Not found | S | Common Stock | 19500 | $1.20 | 261,573.0000 | 190,001,000 | 6.94% | 0.01% |
| Feb. 8, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | S | Common Stock | 4110 | $34.98 | 64,169.0000 | 56,885,000 | 6.02% | 0.01% |
| Feb. 6, 2024 | Twist Bioscience Corp | $TWST | CHESS ROBERT | Not found | A | Common Stock | 5815 | $0.00 | 68,279.0000 | 56,885,000 | 9.31% | 0.01% |