Yuen Maggie 4

What Happened

• Maggie Yuen, Chief Financial Officer of Penumbra, was granted restricted stock units (RSUs) and experienced a tax-withholding share disposition. She received 2,630 RSUs on February 13, 2026 (reporting code A) and another 2,630 RSUs on February 17, 2026 (A). On February 15, 2026, 481 shares were withheld/disposed at $339.30 per share to satisfy tax withholding obligations, totaling $163,203 (reporting code F). The RSU grants show $0.00 acquisition price because they are awards, not purchases.

Key Details

• Transactions:
  • 2026-02-13: RSU grant — 2,630 RSUs (acquired, $0.00) (See footnote re vesting).
  • 2026-02-15: Shares withheld for tax — 481 shares disposed @ $339.30 = $163,203.
  • 2026-02-17: RSU grant — 2,630 RSUs (acquired, $0.00).
• Shares owned after the transactions: Not specified in the Form 4 filing.
• Vesting and acceleration (footnotes):
  • Feb 13 grant: 1/4 vests on Feb 15 each year 2026–2029; unvested RSUs accelerate and fully vest upon the merger Closing (Boston Scientific) if the Reporting Person remains in service through that date.
  • Feb 17 grant: 1/4 vests annually beginning Feb 15, 2027; also subject to acceleration on the Closing.
• Withholding: Shares were withheld by the issuer to satisfy tax withholding obligations (a cashless-type withholding, not an open-market sale by the insider).
• Filing timing: Form was filed on Feb 18, 2026. That filing date appears to fall outside the two-business-day SEC window for the Feb 13 and Feb 15 transactions, meaning those items were effectively reported late.

Context

• These transactions are equity compensation events (RSU grants) and a tax-withholding disposition. Withholding is routine when RSUs vest and does not necessarily reflect the insider selling shares on the open market. The RSUs include standard time-based vesting and a potential merger-related acceleration, which could cause unvested awards to vest at the Closing of the Boston Scientific transaction.