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Insider

Robert Chess

Director

Robert Chess (Director) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales), most often in Twist Bioscience Corporation (TWST). The largest single filing was $2.0M of TWST (18,417 sh × $110.89, as filed), executed Aug 7.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
3
0 buys · 3 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$2.6M
shares × price, as filed
Last traded
Aug 7
Filed Aug 11

Median ADV $206.2M across their filed names

Open performance
Volume by month
$2.0M$1.0M$0Oct 2024Apr 2025Oct 2025Apr 2026Nov 2024 · sells $109KDec 2024 · sells $145KJan 2025 · sells $250KFeb 2025 · sells $156KFeb 2026 · sells $105KMar 2026 · sells $470KAug 2026 · sells $2.0M
Buys $0 Sells $3.3M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 3 filings

Sector per market data · by filing · past 12 months

Most traded names
TWST Twist Bioscience Corporation TWST · 0 buys · 7 sells 7 filings
Recent filings
TWSTSALE Twist Bioscience Corporation View filing → $2.0M
18,417 sh × $110.89
Exec Aug 7
Filed Aug 11 · 4:05 PM ET
TWSTSALE Twist Bioscience Corporation View filing → $470K
10,000 sh × $47.00
Exec Mar 17
Filed Mar 19 · 5:30 PM ET
TWSTSALE Twist Bioscience Corporation View filing → $105K
2,184 sh × $48.26
Exec Feb 13
Filed Feb 18 · 5:30 PM ET
TWSTSALE Twist Bioscience Corporation View filing → $156K
2,940 sh × $53.14
Exec Feb 7 2025
Filed Feb 11 2025 · 5:30 PM ET
TWSTSALE Twist Bioscience Corporation View filing → $250K
5,000 sh × $50.00
Exec Jan 7 2025
Filed Jan 10 2025 · 5:30 PM ET †
TWSTSALE Twist Bioscience Corporation View filing → $145K
2,795 sh × $51.70
Exec Dec 5 2024
Filed Dec 30 2024 · 5:30 PM ET †
TWSTSALE Twist Bioscience Corporation View filing → $109K
2,324 sh × $46.99
Exec Nov 11 2024
Filed Nov 13 2024 · 5:30 PM ET