SEC Insider Transactions from CHESS ROBERT.

Last updated: 2026-03-19 21:03 UTC | Total transactions: 21

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.

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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%