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sellWeak cluster of 310b5-1 plan

John Wendell Thompson sold $660k of RBRK

director at Rubrik, Inc.. 13,500 shares at an average of $48.91, traded Apr 1, 2026, filed Apr 2, 2026.

Warning score
35
Value
$660k
13,500 shares
Holdings after
4,653
-60% from before
From 52-week low
+7%
low $45.58, close $48.59
From 52-week high
-51%
high $99.74, as of Apr 1, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $660k at market
    +20
  • Share of holdings sold
    Sold 60% of holdings
    +20
  • Cluster
    3 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.

This signal so far: 1m +7.1%, 3m +62.6%, 6m +124.3%.

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.

RBRKOct 12, 2026 · close 120.01
Since filing Apr 2, 2026: +133.3%SPY +19.2% · excess +114.1%

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 0001207433-26-000010, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Apr 1, 2026SOpen-market sale
Class A Common Stockindirect: By John and Sandra Thompson Trust10b5-1
-2,400$48.93$117k20,100Apr 2, 2026
Apr 1, 2026SOpen-market sale
Class A Common Stockindirect: By John and Sandra Thompson Trust10b5-1
-100$49.60$4,96020,000Apr 2, 2026
Apr 1, 2026CConversion
Class A Common Stock10b5-1
+11,000$0.00$015,653Apr 2, 2026
Apr 1, 2026SOpen-market sale
Class A Common Stock10b5-1
-5,354$48.57$260k10,299Apr 2, 2026
Apr 1, 2026SOpen-market sale
Class A Common Stock10b5-1
-5,646$49.22$278k4,653Apr 2, 2026
Apr 1, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-11,000$0.00$0121,946Apr 2, 2026
Apr 1, 2026MOption exercise
Class B Common Stockderivative10b5-1
+11,000--61,001Apr 2, 2026
Apr 1, 2026CConversion
Class B Common Stockderivative10b5-1
-11,000--50,001Apr 2, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
40Moderate
RBRKsell 310b5-1
Rubrik, Inc.
Arvind Nithrakashyap
Chief Technology Officer
$4.8M
38,460 shares
-13%
24Weak
RBRKsell 310b5-1
Rubrik, Inc.
Yvonne Wassenaar
director
$86k
721 shares
-19%
40Moderate
RBRKsell 310b5-1
Rubrik, Inc.
John Wendell Thompson
director
$1.6M
13,500 shares
-180%
27Weak
RBRKsell 410b5-1
Rubrik, Inc.
Kiran Kumar Choudary
Chief Financial Officer
$1.0M
10,000 shares
-1%
40Moderate
RBRKsell 410b5-1
Rubrik, Inc.
Arvind Nithrakashyap
Chief Technology Officer
$3.5M
38,460 shares
-13%
40Moderate
RBRKsell 410b5-1
Rubrik, Inc.
John Wendell Thompson
director
$1.2M
13,500 shares
-135%
23Weak
RBRKsell 410b5-1
Rubrik, Inc.
Yvonne Wassenaar
director
$65k
721 shares
-16%
27Weak
RBRKsell 310b5-1
Rubrik, Inc.
Kiran Kumar Choudary
Chief Financial Officer
$983k
10,000 shares
-1%
40Moderate
RBRKsell 310b5-1
Rubrik, Inc.
Arvind Nithrakashyap
Chief Technology Officer
$3.0M
38,460 shares
-13%
40Moderate
RBRKsell 310b5-1
Rubrik, Inc.
John Wendell Thompson
director
$1.0M
13,500 shares
-108%

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.

John Wendell Thompson sold $660k of RBRK | InsiderTell