Sean P. Leuba - 15 Mar 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
Issuer symbol
MEC
Transactions as of
15 Mar 2025
Net transactions value
-$46,164
Form type
4
Filing time
18 Mar 2025, 17:38:44 UTC
Previous filing
07 Mar 2025
Next filing
11 Aug 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 +7,264 +50% $0.000000 21,756 15 Mar 2025 Direct
transaction MEC Common Stock Tax liability $46,164 -3,217 -15% $14.35 18,539 15 Mar 2025 Direct
holding MEC Common Stock 2,000 15 Mar 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 -7,264 -33% $0.000000 14,526 15 Mar 2025 Common Stock 7,264 $0.000000 Direct F2
transaction MEC Restricted Stock Units Award $0 +13,938 $0.000000 13,938 15 Mar 2025 Common Stock 13,938 $0.000000 Direct F3
holding MEC Stock Option (right to buy) 21,552 15 Mar 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 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.