Elizabeth M. O'Callahan, Executive Vice President and Chief Administrative Officer at NTAP, has filed 63 Form 4 disclosures, all tied to a single company. Her transaction pattern is overwhelmingly one-directional: she has recorded zero open-market purchases and zero acquisitions by value, while selling a cumulative $3,281,937.75. The recent activity confirms the bias. Between April and October 2026, she filed seven open-market sales, starting at $96,250 on April 10 and rising to $237,420 on October 12. The sales cluster around the 10th of each month, suggesting a scheduled disposal program.
The filings also show a heavy volume of non-discretionary events. Option exercises (code M) and tax withholding shares (code F) appear repeatedly, with the largest F transactions on May 14, 2026, at $728,555.52 and $593,137.16, plus a $458,372.46 withholding on May 15. These are automatic consequences of equity compensation, not independent trading decisions. The grant (code A) on July 1, 2026, adds to the compensation picture. The discretionary component, the S trades, totaled roughly $1.16 million across the seven sales in this window.
The pattern is consistent with an executive who receives equity grants, exercises options, and sells a portion of the resulting shares on a regular cadence. There is no evidence of accumulation or a buy-side conviction. The direction of her discretionary trades, the monthly rhythm, and the absence of any open-market purchases all point to a steady liquidation of awarded stock. The most recent sale, $237,420 on October 12, 2026, is the largest single open-market sale in the recent set, and it came three days before a tax withholding event of $155,317.80.
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