VANDERPLOEG MARTIN J. 4

What Happened

• Martin J. Vanderploeg, a director of Workiva Inc. (WK), reported a large gift and a small share delivery for tax withholding. On January 21, 2026 he disposed of (gifted) 491,270 derivative shares for no cash consideration. On February 1, 2026 he delivered 560 shares to the issuer at $77.02 per share (total ~$43,131) to satisfy withholding taxes upon vesting of restricted stock units.

Key Details

• Transaction dates & prices:
  • 2026-01-21: Gift (code G) — 491,270 derivative shares, $0 consideration.
  • 2026-02-01: Tax withholding (code F) — 560 shares delivered at $77.02 each, proceeds/value $43,131.
• Shares owned after transaction: Not specified in the filing.
• Relevant footnotes:
  • F1: The 560 shares were delivered to the issuer to pay withholding taxes due on vesting of previously granted restricted stock units.
  • F2: The gifted shares are derivative Class B common stock, each convertible into one share of Class A common stock (conversion rules and automatic conversion conditions described in the issuer’s charter).
• Filing timeliness: Report filed Feb 3, 2026 covering transactions through Feb 1, 2026 — no late filing is indicated.

Context

• Gifts are transfers and do not necessarily signal the insider’s view of the company’s prospects. They can be estate- or family-related transfers or other non-market moves.
• The 560-share delivery was a routine tax-withholding action (shares surrendered to the company to cover taxes on vested RSUs), not an open-market sale.