Tachibana Aaron 4

What Happened Aaron Tachibana, Personalis' Chief Financial Officer and Chief Operating Officer, received equity awards on 2026-03-15 totaling 240,625 share-equivalents. The filing shows a grant of 34,375 restricted stock units (RSUs) and a derivative award for 206,250 shares (listed at $0.00). These were awards/compensation grants, not open-market purchases or sales, so no cash changed hands at grant.

Key Details

• Transaction date: 2026-03-15; Form 4 filed: 2026-03-17 (appears timely).
• Award amounts and prices: 34,375 RSUs @ $0.00; 206,250 derivative awards (options) @ $0.00.
• Shares owned after transaction: not specified in the Form 4 filing.
• Footnotes:
  • F1: Each of the 34,375 units is an RSU representing a contingent right to one share; RSUs vest in six equal semi-annual installments, first vesting on Sept 15, 2026.
  • F2: The 206,250 derivative award vests in 36 equal monthly installments, with the first installment vesting on April 15, 2026.
• No 10b5-1, tax-withholding sale, or late-filing flag noted in the filing.

Context RSUs are compensation that convert to shares upon vesting and settlement; the derivative award here is an option-style award that vests monthly. Because these are granted as part of compensation, they reflect company pay structure rather than an insider buying stock in the open market. Retail investors should note vesting schedules — these awards only translate to tradable shares over time as they vest.