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sellWeak cluster of 810b5-1 plan

Julie Rubinstein sold $762k of ADPT

President and COO at Adaptive Biotechnologies Corp. 57,180 shares at an average of $13.33, traded Mar 16, 2026, filed Mar 18, 2026.

Warning score
27
Value
$762k
57,180 shares
Holdings after
494,920
-11% from before
From 52-week low
+95%
low $6.83, close $13.32
From 52-week high
-35%
high $20.46, as of Mar 16, 2026

Score components

  • Role
    President
    +20
  • Trade size
    $762k at market
    +22
  • Share of holdings sold
    Sold 11% of holdings
    +5
  • Cluster
    8 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.

This signal so far: 1m +9.0%, 3m +26.4%, 6m +108.4%.

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.

ADPTOct 13, 2026 · close 25.28
Since filing Mar 18, 2026: +90.4%SPY +18.5% · excess +71.8%

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 0001780664-26-000012, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 16, 2026MOption exercise
Common Stock10b5-1
+14,722$6.55$96k522,656Mar 18, 2026
Mar 16, 2026SOpen-market sale
Common Stock10b5-1
-19,060$13.41$256k503,596Mar 18, 2026
Mar 17, 2026MOption exercise
Common Stock10b5-1
+14,722$6.55$96k518,318Mar 18, 2026
Mar 17, 2026SOpen-market sale
Common Stock10b5-1
-19,060$13.40$255k499,258Mar 18, 2026
Mar 18, 2026MOption exercise
Common Stock10b5-1
+14,722$6.55$96k513,980Mar 18, 2026
Mar 18, 2026SOpen-market sale
Common Stock10b5-1
-19,060$13.18$251k494,920Mar 18, 2026
Mar 16, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$048,105Mar 18, 2026
Mar 17, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$033,383Mar 18, 2026
Mar 18, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$018,661Mar 18, 2026

Related signals

Other insiders at Adaptive Biotechnologies Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 20, 2026
ADPTsell 310b5-1
Adaptive Biotechnologies Corp
Julie Rubinstein
President and COO
$920k
35,643 shares
-9%
Pro nowfree Oct 15, 2026
ADPTsell 310b5-1
Adaptive Biotechnologies Corp
Julie Rubinstein
President and COO
$948k
35,643 shares
-9%
Pro nowfree Oct 15, 2026
ADPTsell 310b5-1
Adaptive Biotechnologies Corp
Susan Bobulsky
Chief Commercial Officer, MRD
$193k
6,444 shares
-2%
22Weak
ADPTsell 310b5-1
Adaptive Biotechnologies Corp
Francis Lo
Chief People Officer
$758k
26,792 shares
-11%
25Weak
ADPTsell 310b5-1
Adaptive Biotechnologies Corp
Julie Rubinstein
President and COO
$1.0M
35,643 shares
-9%
23Weak
ADPTsell 210b5-1
Adaptive Biotechnologies Corp
Francis Lo
Chief People Officer
$3.2M
115,406 shares
-34%
8Weak
ADPTsell 210b5-1
Adaptive Biotechnologies Corp
Susan Bobulsky
Chief Commercial Officer, MRD
$32k
1,195 shares
-0%
48Moderate
ADPTsell 4
Adaptive Biotechnologies Corp
Katey Einterz Owen
director
$250k
9,615 shares
-11%
46Moderate
ADPTsell 5
Adaptive Biotechnologies Corp
Robert Hershberg
director
$748k
30,664 shares
-40%
50Moderate
ADPTsell 5
Adaptive Biotechnologies Corp
Peter M Neupert
director
$3.1M
124,690 shares
-49%

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.

Julie Rubinstein sold $762k of ADPT | InsiderTell