Alistair N. Sporck, vice president of Aehr Test Systems' contractor business unit, has been an active filer in the company's stock, though his recent activity is heavily skewed toward automatic dispositions rather than discretionary trading. Over the past year, Sporck has reported 36 transactions in AEHR, with zero open-market purchases and total sales of approximately $610,586. The bulk of his recent filings are "F" codes—shares withheld to cover tax obligations on vested awards—which are mechanical and not considered a directional signal. These withholdings have been frequent and recurring, appearing nearly every month since October 2025, with values ranging from roughly $1,645 to $186,833.
The discretionary component of Sporck's trading is limited to four open-market sales ("S") between February and April 2026, totaling about $568,196. The largest of these came on April 22, 2026, when he sold $186,990 worth of AEHR, followed by a $163,760 sale on April 16 and a $134,730 sale on April 10. A smaller pair of sales on February 9, 2026, combined for $82,716. These sales cluster in the spring, suggesting a periodic reduction rather than a reaction to a single event. He also received two grants ("A") on July 1, 2026, valued at $0, which are compensation awards rather than purchases, and a "J" transaction on April 1, 2026, worth $13,098, likely a non-cash adjustment.
Overall, Sporck's pattern is one of consistent equity accumulation through compensation, offset by routine tax withholdings and occasional discretionary sales. The absence of any "P" purchases, combined with the steady stream of "F" and "S" transactions, indicates a net selling bias in terms of cash realized, though the magnitudes are modest relative to typical executive activity. His most recent filings—five "F" transactions in July 2026 totaling roughly $257,501—show no new open-market activity, leaving the last discretionary sale in April as the most recent signal of his trading intent.
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