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sellWeak cluster of 410b5-1 plan

Subhashis Banerjee sold $99k of ARTV

Chief Medical Officer at Artiva Biotherapeutics, Inc.. 8,222 shares at an average of $12.01, traded Aug 27, 2026, filed Aug 31, 2026.

Warning score
5
Value
$99k
8,222 shares
Holdings after
142,047
-5% from before
From 52-week low
+424%
low $2.28, close $11.94
From 52-week high
-11%
high $13.39, as of Aug 27, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $99k at market
    +10
  • Share of holdings sold
    Sold 5.5% of holdings
    0
  • 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.

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.

ARTVOct 12, 2026 · close 6.77
Since filing Aug 31, 2026: -40.1%SPY +1.7% · excess -41.8%

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 0001193125-26-377207, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 27, 2026MOption exercise
Common Stock10b5-1
+5,306$1.92$10k150,26944 d ago
Aug 27, 2026SOpen-market sale
Common Stock10b5-1
-8,222$12.01$99k142,04744 d ago
Aug 27, 2026MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-5,306$0.00$074,26544 d ago

Related signals

Other insiders at Artiva Biotherapeutics, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
31Weak
ARTVsell 410b5-1
Artiva Biotherapeutics, Inc.
Fred Aslan
Chief Executive Officer
$169k
23,463 shares
-2%
56Moderate
ARTVsell 4
Artiva Biotherapeutics, Inc.
Fred Aslan
Chief Executive Officer
$422k
61,696 shares
-4%
30Weak
ARTVsell 4
Artiva Biotherapeutics, Inc.
Subhashis Banerjee
Chief Medical Officer
$7,514
1,099 shares
-1%
42Moderate
ARTVsell 4
Artiva Biotherapeutics, Inc.
Jennifer Bush
COO, CLO, Compliance Officer
$57k
8,370 shares
-2%
38Weak
ARTVsell 4
Artiva Biotherapeutics, Inc.
Christopher Horan
Chief Tech Operations Officer
$71k
10,340 shares
-3%
33Weak
ARTVsell 410b5-1
Artiva Biotherapeutics, Inc.
Fred Aslan
Chief Executive Officer
$256k
23,429 shares
-2%
61Notable
ARTVsell 4
Artiva Biotherapeutics, Inc.
Fred Aslan
Chief Executive Officer
$690k
61,888 shares
-4%
30Weak
ARTVsell 4
Artiva Biotherapeutics, Inc.
Subhashis Banerjee
Chief Medical Officer
$12k
1,100 shares
-1%
45Moderate
ARTVsell 4
Artiva Biotherapeutics, Inc.
Jennifer Bush
COO, CLO, Compliance Officer
$94k
8,391 shares
-2%
40Moderate
ARTVsell 4
Artiva Biotherapeutics, Inc.
Christopher Horan
Chief Tech Operations Officer
$116k
10,366 shares
-4%

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.

Subhashis Banerjee sold $99k of ARTV | InsiderTell