Robert D. Kamphuis - Feb 28, 2022 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Robert D. Kamphuis
Stock symbol
MEC
Transactions as of
Feb 28, 2022
Transactions value $
$0
Form type
4
Date filed
3/18/2022, 05:10 PM
Previous filing
May 11, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding MEC Common Stock 421K Feb 28, 2022 Direct
holding MEC Common Stock 79.8K Feb 28, 2022 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 Award $0 +118K $0.00 118K Feb 28, 2022 Common Stock 118K $0.00 Direct F2
transaction MEC Stock Option (right to buy) Award $0 +228K $0.00 228K Feb 28, 2022 Common Stock 228K $10.32 Direct F3
holding MEC Restricted Stock Units 40.7K Feb 28, 2022 Common Stock 40.7K $0.00 Direct F4
holding MEC Stock Option (right to buy) 165K Feb 28, 2022 Common Stock 165K $14.01 Direct F5
holding MEC Stock Option (right to buy) 371K Feb 28, 2022 Common Stock 371K $7.12 Direct F6
holding MEC Stock Option (right to buy) 156K Feb 28, 2022 Common Stock 156K $17.00 Direct F7
* 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, 2023 and February 28, 2024.
F3 The options 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, 2022 and February 28, 2023.
F5 The options will vest 50% on each of February 28, 2022 and February 28, 2023.
F6 The options will vest 50% on each of February 27, 2021 and February 27, 2022.
F7 The options will vest 50% on each of May 8, 2020 and May 8, 2021.