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sellWeak cluster of 610b5-1 plan

Sharon Benzeno sold $212k of ADPT

Chief Commercial Ofc Imm Med at Adaptive Biotechnologies Corp. 12,604 shares at an average of $16.85, traded Dec 4, 2025, filed Dec 8, 2025.

Warning score
7
Value
$212k
12,604 shares
Holdings after
296,791
-4% from before
From 52-week low
+192%
low $5.97, close $17.46
From 52-week high
-15%
high $20.46, as of Dec 4, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $212k at market
    +12
  • Share of holdings sold
    Sold 4.1% of holdings
    0
  • Cluster
    6 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 +11.9%, 3m 0.0%, 6m +11.7%.

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 Dec 8, 2025: +69.1%SPY +15.0% · excess +54.1%

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 0001780854-25-000003, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 4, 2025MOption exercise
Common Stock10b5-1
+4,290$12.14$52k301,081Dec 8, 2025
Dec 4, 2025MOption exercise
Common Stock10b5-1
+4,157$8.46$35k305,238Dec 8, 2025
Dec 4, 2025MOption exercise
Common Stock10b5-1
+4,157$3.99$17k309,395Dec 8, 2025
Dec 4, 2025SOpen-market sale
Common Stock10b5-1
-12,604$16.85$212k296,791Dec 8, 2025
Dec 4, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-4,290$0.00$012,871Dec 8, 2025
Dec 4, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-4,157$0.00$062,360Dec 8, 2025
Dec 4, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-4,157$0.00$0112,247Dec 8, 2025

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.

Sharon Benzeno sold $212k of ADPT | InsiderTell