Nichols Craig D 4

What Happened
Craig D. Nichols, Senior VP of Operations & Supply Chain at Mayville Engineering (MEC), exercised/converted 5,808 derivative shares and concurrently had 5,808 derivative shares reported as disposed. He also received 14,998 restricted stock units (RSUs) as an award. To cover tax withholding, 1,662 shares were surrendered/withheld at $16.67 per share for a tax payment of $27,706. The filing shows acquisition entries at $0.00 per share for the exercises/awards, and the withholding was recorded at $16.67/share.

Key Details

• Transaction date (Period of Report): March 15, 2026; Form 4 filed March 17, 2026 (appears timely).
• Transactions reported:
  • M (exercise/conversion): 5,808 shares acquired (reported at $0.00) and 5,808 derivative shares disposed (reported at $0.00).
  • A (award/grant): 14,998 RSUs acquired at $0.00.
  • F (tax withholding/payment): 1,662 shares withheld/disposed at $16.67 for $27,706.
• Shares owned after transaction: not specified in this filing.
• Footnotes: two RSU schedules noted — one vests 1/3 on each of Mar 15, 2026/2027/2028; the other vests 1/3 on each of Mar 15, 2027/2028/2029.
• Codes: M = exercise/conversion of derivative; A = award/grant; F = shares withheld for tax liability.

Context

• The filing shows exercise/conversion of derivative securities with a simultaneous disposal of the same 5,808 shares, which is commonly seen when shares are sold or transferred immediately upon conversion (a cashless exercise or immediate sale). The 1,662-share disposition is explicitly for tax withholding.
• RSU awards vest over multi-year schedules per the footnotes; vesting, not a market purchase, is the source of the acquired shares.
• These are routine company compensation events (awards, vesting, tax withholding and conversion) rather than an open-market purchase that might signal new insider buying.