John Wendell Thompson has filed 103 Form 4 transactions, all in a single company, Rubrik (RBRK). The pattern is one-directional: he has sold $14.2 million worth of stock and bought none. His recent activity, concentrated in the last four months, shows 18 open-market sales with zero purchases.
The sales cluster around the first of each month, paired with option exercises (code M) and conversions (code C) that carry no dollar value. On October 1, 2026, Thompson sold in five separate transactions totaling roughly $1.52 million. The largest single sale that day was $891,044.70, followed by $278,805.24. September 1 brought seven sales worth about $1.13 million combined, with the two biggest at $418,394 and $406,364. August 3 saw five sales totaling approximately $1.0 million, led by $423,210.20 and $391,922.60. July 1 included a $75,231 sale.
The monthly cadence and the pairing with zero-value option exercises suggest these are scheduled dispositions of shares acquired through compensation. Thompson has not made a single open-market purchase (code P) in the entire filing history. The total sell value of $14.2 million, against zero buys, gives him a clear sell-only bias in RBRK. The most recent filing date is October 1, 2026, and the pattern shows no sign of slowing.
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