Skip to content
sellWeak cluster of 310b5-1 plan

Francis Lo sold $77k of ADPT

Chief People Officer at Adaptive Biotechnologies Corp. 4,394 shares at an average of $17.50, traded Dec 22, 2025, filed Jan 7, 2026.

Warning score
3
Value
$77k
4,394 shares
Holdings after
315,978
-1% from before
From 52-week low
+190%
low $5.99, close $17.41
From 52-week high
-15%
high $20.46, as of Dec 22, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $77k at market
    +8
  • Share of holdings sold
    Sold 1.4% of holdings
    0
  • Cluster
    3 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 -5.7%, 3m -11.3%, 6m +20.5%.

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 Jan 7, 2026: +51.1%SPY +13.7% · excess +37.4%

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 0001780660-26-000002, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 22, 2025MOption exercise
Common Stock10b5-1
+1,100$7.80$8,580317,078Jan 7, 2026
Dec 22, 2025MOption exercise
Common Stock10b5-1
+1,100$8.46$9,306318,178Jan 7, 2026
Dec 22, 2025MOption exercise
Common Stock10b5-1
+2,194$3.99$8,754320,372Jan 7, 2026
Dec 22, 2025SOpen-market sale
Common Stock10b5-1
-4,394$17.50$77k315,978Jan 7, 2026
Dec 22, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-1,100$0.00$0112,150Jan 7, 2026
Dec 22, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-1,100$0.00$0108,076Jan 7, 2026
Dec 22, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-2,194$0.00$0107,981Jan 7, 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.

Francis Lo sold $77k of ADPT | InsiderTell