Frichtl Mark, Chief Technology Officer of Ouster (OUST), has been a consistent seller of company stock over the past month, with Form 4 filings showing 19 open-market sales since early May 2026. The transactions are concentrated in OUST shares and total roughly $27.5 million in sell value across all recent filings, with no corresponding open-market purchases. The selling pattern is heavily clustered around late May, with the largest single-day activity occurring on May 26, when six separate sales totaled approximately $10.8 million, including individual transactions of $3.06 million, $2.89 million, and $2.02 million. Earlier in the month, sales on May 13 and May 22 each exceeded $4 million in aggregate, with multiple smaller dispositions interspersed.
The filings also reveal a recurring mechanical component: Frichtl executed several option exercises (coded "M") on the same days as the sales, including exercises valued at $711,896 on May 22, $568,800 on May 14, and $303,469 on May 13. These exercises are typically paired with same-day sales, a pattern consistent with a cashless exercise-and-sell arrangement rather than a discretionary accumulation of shares. Notably, there are no grants, gifts, or purchases in the recent data, and the total buy value across all 44 filings is zero, underscoring a one-directional bias toward liquidation.
The most recent transaction, a $714,887 sale on June 12, suggests the selling cadence has continued into the current month, though at a smaller scale than the late-May cluster. Across the entire filing history, Frichtl has transacted exclusively in OUST, with total sell value of $27.48 million and no acquired shares outside of option exercises. The data indicates a sustained reduction in his direct and indirect holdings, driven by open-market sales that are frequently tied to the exercise of existing options, with no evidence of new share accumulation.
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