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sellWeak cluster of 510b5-1 plan

Arjun Kampani sold $402k of RKLB

SVP & General Counsel at Rocket Lab USA, Inc.. 6,034 shares at an average of $66.65, traded Aug 27, 2026, filed Aug 28, 2026.

Warning score
26
Value
$402k
6,034 shares
Holdings after
250,917
-2% from before
From 52-week low
+71%
low $39.48, close $67.53
From 52-week high
-55%
high $150.23, as of Aug 27, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $402k at market
    +16
  • Share of holdings sold
    Sold 2.3% of holdings
    0
  • Cluster
    5 insiders selling within 14 days
    +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.

RKLBOct 9, 2026 · close 68.21
Since filing Aug 28, 2026: +5.9%SPY +1.4% · excess +4.5%

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 0002001011-26-000132, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 27, 2026SOpen-market sale
Common Stock10b5-1
-4,600$66.50$306k252,351Aug 28, 2026
Aug 27, 2026SOpen-market sale
Common Stock10b5-1
-1,434$67.16$96k250,917Aug 28, 2026

Related signals

Other insiders at Rocket Lab USA, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
17Weak
RKLBsell10b5-1
Rocket Lab USA, Inc.
Adam C. Spice
Chief Financial Officer
$9.9M
140,157 shares
-11%
32Weak
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Adam C. Spice
Chief Financial Officer
$8.8M
140,157 shares
-11%
40Moderate
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Frank Klein
Chief Operations Officer
$2.4M
35,558 shares
-4%
40Moderate
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Marvin Bradford Clevenger
President, Rocket Lab USA, Inc
$1.0M
15,051 shares
-3%
29Weak
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Arjun Kampani
SVP & General Counsel
$540k
7,754 shares
-3%
40Moderate
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Frank Klein
Chief Operations Officer
$3.2M
45,692 shares
-5%
36Weak
RKLBsell 5
Rocket Lab USA, Inc.
Agostino Ricupati
VP Corp Controller & CAO
$47k
669 shares
-2%
37Weak
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Adam C. Spice
Chief Financial Officer
$674k
9,677 shares
-1%
50Moderate
RKLBsell10b5-1
Rocket Lab USA, Inc.
Peter Beck
CEO
$286M
3,275,779 shares
-66%
45Moderate
RKLBsell
Rocket Lab USA, Inc.
Arjun Kampani
SVP & General Counsel
$9.5M
88,000 shares
-25%

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.

Arjun Kampani sold $402k of RKLB | InsiderTell