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sellWeak cluster of 210b5-1 plan

Howard W Robin sold $431k of NKTR

President & CEO at NEKTAR THERAPEUTICS. 11,832 shares at an average of $36.42, traded Sep 4, 2025, filed Sep 8, 2025.

Warning score
35
Value
$431k
11,832 shares
Holdings after
56,008
-17% from before
From 52-week low
+390%
low $7.35, close $35.98
From 52-week high
0%
high $35.98, as of Sep 4, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $431k at market
    +17
  • Share of holdings sold
    Sold 17% of holdings
    +5
  • 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.

This signal so far: 1m +27.6%, 3m +29.2%, 6m +56.0%.

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.

NKTROct 12, 2026 · close 39.84
Since filing Sep 8, 2025: -10.1%SPY +21.5% · excess -31.7%

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 0000950170-25-113691, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 4, 2025SOpen-market sale
Common Stock10b5-1
-1,923$32.37$62k65,917Sep 8, 2025
Sep 4, 2025SOpen-market sale
Common Stock10b5-1
-1,496$33.54$50k64,421Sep 8, 2025
Sep 4, 2025SOpen-market sale
Common Stock10b5-1
-613$34.40$21k63,808Sep 8, 2025
Sep 4, 2025SOpen-market sale
Common Stock10b5-1
-1,134$35.80$41k62,674Sep 8, 2025
Sep 5, 2025SOpen-market sale
Common Stock10b5-1
-3,304$37.87$125k59,370Sep 8, 2025
Sep 5, 2025SOpen-market sale
Common Stock10b5-1
-2,226$38.82$86k57,144Sep 8, 2025
Sep 5, 2025SOpen-market sale
Common Stock10b5-1
-1,136$39.89$45k56,008Sep 8, 2025

Related signals

Other insiders at NEKTAR THERAPEUTICS and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Howard W Robin
President & CEO
$30k
418 shares
-1%
23Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$13k
186 shares
-2%
29Weak
NKTRsell 210b5-1
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$398k
5,681 shares
-37%
48Moderate
NKTRsell 210b5-1
NEKTAR THERAPEUTICS
Howard W Robin
President & CEO
$1.2M
20,000 shares
-27%
28Weak
NKTRsell 210b5-1
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$336k
5,538 shares
-26%
38Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Howard W Robin
President & CEO
$29k
444 shares
-1%
23Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$13k
199 shares
-1%
38Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Howard W Robin
President & CEO
$31k
423 shares
-1%
23Weak
NKTRsell 2
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$13k
180 shares
-1%
11Weak
NKTRsell10b5-1
NEKTAR THERAPEUTICS
Jonathan Zalevsky
Chief R&D Officer
$138k
3,867 shares
-15%

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.

Howard W Robin sold $431k of NKTR | InsiderTell