Sean P. Leuba - Mar 15, 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Role
SVP, Corp. Development & GC
Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Sean P. Leuba
Stock symbol
MEC
Transactions as of
Mar 15, 2025
Transactions value $
-$46,164
Form type
4
Date filed
3/18/2025, 05:38 PM
Previous filing
Mar 7, 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Options Exercise $0 +7.26K +50.12% $0.00 21.8K Mar 15, 2025 Direct
transaction MEC Common Stock Tax liability -$46.2K -3.22K -14.79% $14.35 18.5K Mar 15, 2025 Direct
holding MEC Common Stock 2K Mar 15, 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 -7.26K -33.34% $0.00 14.5K Mar 15, 2025 Common Stock 7.26K $0.00 Direct F2
transaction MEC Restricted Stock Units Award $0 +13.9K $0.00 13.9K Mar 15, 2025 Common Stock 13.9K $0.00 Direct F3
holding MEC Stock Option (right to buy) 21.6K Mar 15, 2025 Common Stock 21.6K $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 1/3 on each of March 15, 2025, 2026 and 2027.
F3 The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.
F4 The options will vest 50% on each of February 28, 2024 and February 28, 2025.