Randall P. Stille - 28 Feb 2023 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Role
Chief Operating Officer
Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Randall P. Stille
Issuer symbol
MEC
Transactions as of
28 Feb 2023
Net transactions value
+$538,469
Form type
4
Filing time
02 Mar 2023, 17:53:56 UTC
Previous filing
18 Mar 2022
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 +25,472 +95% $0.000000 52,340 28 Feb 2023 Direct
transaction MEC Common Stock Tax liability $116,981 -7,284 -14% $16.06 45,056 28 Feb 2023 Direct
holding MEC Common Stock 2,331 28 Feb 2023 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 -8,030 -100% $0.000000* 0 28 Feb 2023 Common Stock 8,030 $0.000000 Direct F2
transaction MEC Restricted Stock Units Options Exercise $0 -17,442 -50% $0.000000 17,442 28 Feb 2023 Common Stock 17,442 $0.000000 Direct F3
transaction MEC Restricted Stock Units Award $0 +23,120 $0.000000 23,120 28 Feb 2023 Common Stock 23,120 $0.000000 Direct F4
transaction MEC Stock Option (right to buy) Award $655,450 +40,410 $16.22 40,410 28 Feb 2023 Common Stock 40,410 $16.22 Direct F5
holding MEC Stock Option (right to buy) 67,165 28 Feb 2023 Common Stock 67,165 $10.32 Direct F6
holding MEC Stock Option (right to buy) 32,468 28 Feb 2023 Common Stock 32,468 $14.01 Direct F7
holding MEC Stock Option (right to buy) 52,817 28 Feb 2023 Common Stock 52,817 $7.12 Direct F8
* 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, 2022 and February 28, 2023.
F3 The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024
F4 The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.
F5 The options will vest 50% on each of February 28, 2024 and February 28, 2025.
F6 The options will vest 50% on each of February 28, 2023 and February 28, 2024.
F7 The options will vest 50% on each of February 28, 2022 and February 28, 2023.
F8 The options will vest 50% on each of February 27, 2021 and February 27, 2022.