Sean P. Leuba - 28 Feb 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Sean P. Leuba
Issuer symbol
MEC
Transactions as of
28 Feb 2025
Net transactions value
-$40,828
Form type
4
Filing time
04 Mar 2025, 18:53:52 UTC
Previous filing
10 Jan 2025
Next filing
07 Mar 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Options Exercise $0 +6,165 +56% $0.000000 17,223 28 Feb 2025 Direct
transaction MEC Common Stock Tax liability $40,828 -2,731 -16% $14.95 14,492 28 Feb 2025 Direct
holding MEC Common Stock 1,000 28 Feb 2025 by ESOP and/or 401(k) Plan F1

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
transaction MEC Restricted Stock Units Options Exercise $0 -6,165 -100% $0.000000 0 28 Feb 2025 Common Stock 6,165 $0.000000 Direct F2
holding MEC Restricted Stock Units 21,790 28 Feb 2025 Common Stock 21,790 $0.000000 Direct F3
holding MEC Stock Option (right to buy) 21,552 28 Feb 2025 Common Stock 21,552 $16.22 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects the most recent ESOP and 401(k) balance.
F2 The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.
F3 The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
F4 The options will vest 50% on each of February 28, 2024 and February 28, 2025.