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

Role
Chairman, Pres. & CEO, Director
Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Robert D. Kamphuis
Stock symbol
MEC
Transactions as of
Feb 28, 2022
Transactions value $
-$347,093
Form type
4
Date filed
3/2/2022, 06:35 PM
Previous filing
May 11, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Options Exercise $0 +115K +33.76% $0.00 454K Feb 28, 2022 Direct
transaction MEC Common Stock Tax liability -$347K -33.6K -7.41% $10.32 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 Options Exercise $0 -73.9K -100% $0.00* 0 Feb 28, 2022 Common Stock 73.9K $0.00 Direct F2
transaction MEC Restricted Stock Units Options Exercise $0 -40.7K -50% $0.00 40.7K Feb 28, 2022 Common Stock 40.7K $0.00 Direct F3
holding MEC Stock Option (right to buy) 165K Feb 28, 2022 Common Stock 165K $14.01 Direct F4
holding MEC Stock Option (right to buy) 371K Feb 28, 2022 Common Stock 371K $7.12 Direct F5
holding MEC Stock Option (right to buy) 156K Feb 28, 2022 Common Stock 156K $17.00 Direct F6
* 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 27, 2021 and February 27, 2022.
F3 The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.
F4 The options will vest 50% on each of February 28, 2022 and February 28, 2023.
F5 The options will vest 50% on each of February 27, 2021 and February 27, 2022.
F6 The options will vest 50% on each of May 8, 2020 and May 8, 2021.