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sellWeak cluster of 410b5-1 plan

Julie Rubinstein sold $751k of ADPT

President and COO at Adaptive Biotechnologies Corp. 57,180 shares at an average of $13.14, traded Mar 27, 2026, filed Mar 31, 2026.

Warning score
27
Value
$751k
57,180 shares
Holdings after
455,878
-12% from before
From 52-week low
+82%
low $6.83, close $12.41
From 52-week high
-39%
high $20.46, as of Mar 27, 2026

Score components

  • Role
    President
    +20
  • Trade size
    $751k at market
    +22
  • Share of holdings sold
    Sold 12% of holdings
    +5
  • Cluster
    4 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 +1.6%, 3m +54.5%, 6m +107.3%.

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 31, 2026: +82.1%SPY +20.2% · excess +61.9%

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 0001780664-26-000018, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 27, 2026MOption exercise
Common Stock10b5-1
+14,722$7.27$107k483,614Mar 31, 2026
Mar 27, 2026SOpen-market sale
Common Stock10b5-1
-2,738$12.49$34k480,876Mar 31, 2026
Mar 27, 2026SOpen-market sale
Common Stock10b5-1
-16,322$13.48$220k464,554Mar 31, 2026
Mar 30, 2026MOption exercise
Common Stock10b5-1
+14,722$7.27$107k479,276Mar 31, 2026
Mar 30, 2026SOpen-market sale
Common Stock10b5-1
-19,060$12.63$241k460,216Mar 31, 2026
Mar 31, 2026MOption exercise
Common Stock10b5-1
+14,722$7.27$107k474,938Mar 31, 2026
Mar 31, 2026SOpen-market sale
Common Stock10b5-1
-19,060$13.45$256k455,878Mar 31, 2026
Mar 27, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$0140,607Mar 31, 2026
Mar 30, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$0125,885Mar 31, 2026
Mar 31, 2026MOption exercise
Stock Option (right to buy)derivative10b5-1
-14,722$0.00$0111,163Mar 31, 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 $751k of ADPT | InsiderTell