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sellModerate cluster of 8

Robert F. Werner sold $213k of TWST

Chief Accounting Officer at Twist Bioscience Corp. 1,523 shares at an average of $140.02, traded Aug 21, 2026, filed Aug 25, 2026.

Warning score
42
Value
$213k
1,523 shares
Holdings after
44,637
-3% from before
From 52-week low
+503%
low $24.16, close $145.59
From 52-week high
0%
high $145.59, as of Aug 21, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $213k at market
    +12
  • Share of holdings sold
    Sold 3.3% of holdings
    0
  • Cluster
    8 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TWSTOct 9, 2026 · close 159.78
Since filing Aug 25, 2026: +5.5%SPY +1.8% · excess +3.7%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001214659-26-010827, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 21, 2026SOpen-market sale
Common Stock
-669$139.07$93k45,491Aug 25, 2026
Aug 24, 2026SOpen-market sale
Common Stock
-854$140.77$120k44,637Aug 25, 2026

Related signals

Other insiders at Twist Bioscience Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 20, 2026
TWSTsell 6
Twist Bioscience Corp
Adam Laponis
Chief Financial Officer
$385k
2,462 shares
-2%
Pro nowfree Oct 14, 2026
TWSTsell 610b5-1
Twist Bioscience Corp
Emily M. Leproust
Chief Executive Officer
$919k
4,548 shares
-1%
60Notable
TWSTsell 6
Twist Bioscience Corp
Dennis Cho
See Remarks
$1.8M
9,514 shares
-13%
65Notable
TWSTsell 6
Twist Bioscience Corp
Patrick John Finn
President and COO
$4.9M
25,714 shares
-12%
55Moderate
TWSTsell 6
Twist Bioscience Corp
Paula Green
SVP of Human Resources
$1.9M
10,088 shares
-9%
62Notable
TWSTsell 6
Twist Bioscience Corp
Adam Laponis
Chief Financial Officer
$1.5M
8,057 shares
-7%
45Moderate
TWSTsell 610b5-1
Twist Bioscience Corp
Emily M. Leproust
Chief Executive Officer
$8.8M
46,391 shares
-8%
44Moderate
TWSTsell 6
Twist Bioscience Corp
Robert F. Werner
Chief Accounting Officer
$280k
1,482 shares
-3%
44Moderate
TWSTsell 610b5-1
Twist Bioscience Corp
Emily M. Leproust
Chief Executive Officer
$923k
5,203 shares
-1%
37Weak
TWSTsell 6
Twist Bioscience Corp
Dennis Cho
See Remarks
$58k
348 shares
-0%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.