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sellWeak cluster of 210b5-1 plan

Chris Diorio Ph.d. sold $1.7M of PI

CHIEF EXECUTIVE OFFICER at IMPINJ INC. 9,096 shares at an average of $184.49, traded Sep 15, 2025, filed Sep 16, 2025.

Warning score
38
Value
$1.7M
9,096 shares
Holdings after
297,013
-3% from before
From 52-week low
+205%
low $62.54, close $190.81
From 52-week high
-20%
high $238.58, as of Sep 15, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.7M at market
    +25
  • Share of holdings sold
    Sold 3.0% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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.

PIOct 9, 2026 · close 189.63
Since filing Sep 16, 2025: -2.1%SPY +19.6% · excess -21.7%

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 0001677721-25-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 15, 2025SOpen-market sale
Common Stock10b5-1
-568$179.26$102k305,541Sep 16, 2025
Sep 15, 2025SOpen-market sale
Common Stock10b5-1
-467$180.65$84k305,074Sep 16, 2025
Sep 15, 2025SOpen-market sale
Common Stock10b5-1
-1,909$181.84$347k303,165Sep 16, 2025
Sep 15, 2025SOpen-market sale
Common Stock10b5-1
-1,260$182.77$230k301,905Sep 16, 2025
Sep 15, 2025SOpen-market sale
Common Stock10b5-1
-796$183.47$146k301,109Sep 16, 2025
Sep 16, 2025SOpen-market sale
Common Stock10b5-1
-1,821$186.43$339k299,288Sep 16, 2025
Sep 16, 2025SOpen-market sale
Common Stock10b5-1
-1,073$187.52$201k298,215Sep 16, 2025
Sep 16, 2025SOpen-market sale
Common Stock10b5-1
-850$189.21$161k297,365Sep 16, 2025
Sep 16, 2025SOpen-market sale
Common Stock10b5-1
-340$190.26$65k297,025Sep 16, 2025
Sep 16, 2025SOpen-market sale
Common Stock10b5-1
-12$191.76$2,301297,013Sep 16, 2025

Related signals

Other insiders at IMPINJ INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
35Weak
PIsell 210b5-1
IMPINJ INC
Cary Baker
CHIEF FINANCIAL OFFICER
$1.6M
8,892 shares
-10%
39Weak
PIsell 2
IMPINJ INC
Miron Washington
director
$139k
800 shares
-16%
45Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$42M
280,547 shares
-20%
40Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$14M
87,138 shares
-6%
40Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$7.7M
45,761 shares
-3%
40Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$12M
72,932 shares
-5%
40Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$9.8M
56,853 shares
-3%
40Moderate
PIsell
IMPINJ INC
Daniel Patrick Gibson
director
$13M
78,062 shares
-4%
48Moderate
PIsell 2
IMPINJ INC
Daniel Patrick Gibson
director
$1.7M
11,127 shares
-1%
42Moderate
PIsell 2
IMPINJ INC
Daniel Patrick Gibson
director
$590k
3,772 shares
-0%

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.

Chris Diorio Ph.d. sold $1.7M of PI | InsiderTell