Craig D. Nichols - Nov 6, 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Role
SVP, Operations & Supply Chain
Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Craig D. Nichols
Stock symbol
MEC
Transactions as of
Nov 6, 2025
Transactions value $
$18,087
Form type
4
Date filed
11/7/2025, 04:36 PM
Previous filing
Mar 18, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Nichols Craig D SVP, Operations & Supply Chain 135 SOUTH 84TH STREET, SUITE 300, MILWAUKEE /s/ Russell E. Ryba, Attorney-in-Fact for Craig D. Nichols 2025-11-07 0002060070

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Award $18.1K +1.13K $15.95 1.13K Nov 6, 2025 by 401(k) Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding MEC Restricted Stock Units 17.4K Nov 6, 2025 Common Stock 17.4K $0.00 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.