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sellWeak cluster of 510b5-1 plan

Arjun Kampani sold $3.5M of RKLB

SVP & General Counsel at Rocket Lab USA, Inc.. 23,804 shares at an average of $147.43, traded May 28, 2026, filed Jun 1, 2026.

Warning score
35
Value
$3.5M
23,804 shares
Holdings after
352,705
-6% from before
From 52-week low
+483%
low $25.41, close $148.03
From 52-week high
-1%
high $150.23, as of May 28, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $3.5M at market
    +25
  • Share of holdings sold
    Sold 6.3% 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 12, 2026 · close 65.71
Since filing Jun 1, 2026: -46.3%SPY +3.1% · excess -49.4%

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 0002001011-26-000079, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 28, 2026SOpen-market sale
Common Stock10b5-1
-500$143.15$72k376,009Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-1,900$144.33$274k374,109Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-1,090$145.52$159k373,019Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-4,310$146.62$632k368,709Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-6,698$147.51$988k362,011Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-6,006$148.52$892k356,005Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-3,100$149.39$463k352,905Jun 1, 2026
May 28, 2026SOpen-market sale
Common Stock10b5-1
-200$150.26$30k352,705Jun 1, 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%
26Weak
RKLBsell 510b5-1
Rocket Lab USA, Inc.
Arjun Kampani
SVP & General Counsel
$402k
6,034 shares
-2%
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%

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 $3.5M of RKLB | InsiderTell