Skip to content
sellModerate cluster of 510b5-1 plan

Ban Seng Teh sold $41M of STX

EVP & Chief Commercial Officer at Seagate Technology Holdings plc. 52,730 shares at an average of $782.08, traded Sep 15, 2026, filed Sep 16, 2026.

Warning score
40
Value
$41M
52,730 shares
Holdings after
5,810
-90% from before
From 52-week low
+269%
low $209.22, close $771.19
From 52-week high
-29%
high $1,092.38, as of Sep 15, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $41.2M at market
    +25
  • Share of holdings sold
    Sold 90% of holdings
    +20
  • Cluster
    5 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

STXOct 9, 2026 · close 783.00
Since filing Sep 16, 2026: +0.1%SPY +3.5% · excess -3.5%

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 0001137789-26-000251, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 14, 2026MOption exercise
Ordinary Shares10b5-1
+52,730$0.00$058,54025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-914$771.38$705k57,62625 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-3,451$772.65$2.7M54,17525 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,717$774.01$1.3M52,45825 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-2,315$775.01$1.8M50,14325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-3,242$776.20$2.5M46,90125 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-3,987$777.22$3.1M42,91425 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-7,259$778.35$5.7M35,65525 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-6,682$779.27$5.2M28,97325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-2,453$780.29$1.9M26,52025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,600$781.35$1.3M24,92025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-4,147$782.56$3.2M20,77325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,760$783.28$1.4M19,01325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,000$784.45$784k18,01325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,040$786.14$818k16,97325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-120$787.26$94k16,85325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-280$788.43$221k16,57325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,760$789.84$1.4M14,81325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-560$791.36$443k14,25325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,280$794.72$1.0M12,97325 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-2,166$795.95$1.7M10,80725 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-1,587$796.90$1.3M9,22025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-530$797.97$423k8,69025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-400$799.03$320k8,29025 d ago
Sep 15, 2026SOpen-market sale
Ordinary Shares10b5-1
-2,480$800.47$2.0M5,81025 d ago
Sep 14, 2026MOption exercise
Performance-Based Restricted Share Unitsderivative10b5-1
-52,730$0.00$0025 d ago

Related signals

Other insiders at Seagate Technology Holdings plc and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
23Weak
STXsell 210b5-1
Seagate Technology Holdings plc
William D Mosley
CEO
$17M
18,998 shares
-5%
38Weak
STXsell 210b5-1
Seagate Technology Holdings plc
William D Mosley
CEO
$10M
11,002 shares
-3%
30Weak
STXsell 410b5-1
Seagate Technology Holdings plc
John Christopher Morris
EVP & CTO
$8.2M
9,354 shares
-29%
55Moderate
STXsell 5
Seagate Technology Holdings plc
William D Mosley
CEO
$76M
97,889 shares
-21%
50Moderate
STXsell 5
Seagate Technology Holdings plc
John Christopher Morris
EVP & CTO
$12M
15,466 shares
-33%
57Moderate
STXsell 5
Seagate Technology Holdings plc
Gianluca Romano
EVP & CFO
$39M
49,984 shares
-41%
50Moderate
STXsell 5
Seagate Technology Holdings plc
William D Mosley
CEO
$1.5M
1,870 shares
-1%
31Weak
STXsell 5
Seagate Technology Holdings plc
John Christopher Morris
EVP & CTO
$385k
493 shares
-3%
47Moderate
STXsell 510b5-1
Seagate Technology Holdings plc
Gianluca Romano
EVP & CFO
$38M
45,898 shares
-57%
32Weak
STXsell 510b5-1
Seagate Technology Holdings plc
Gianluca Romano
EVP & CFO
$4.7M
5,555 shares
-16%

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.

Ban Seng Teh sold $41M of STX | InsiderTell