Ryan F. Raber - Feb 28, 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Ryan F. Raber
Stock symbol
MEC
Transactions as of
Feb 28, 2025
Transactions value $
-$89,879
Form type
4
Date filed
3/4/2025, 06:45 PM
Previous filing
Aug 26, 2024
Next filing
Mar 18, 2025

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Options Exercise $0 +12.8K +14.24% $0.00 103K Feb 28, 2025 Direct F1
transaction MEC Common Stock Tax liability -$89.9K -6.01K -5.86% $14.95 96.6K Feb 28, 2025 Direct F1
holding MEC Common Stock 26.3K Feb 28, 2025 by ESOP and/or 401(k) Plan F2

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 -12.8K -100% $0.00 0 Feb 28, 2025 Common Stock 12.8K $0.00 Direct F3
holding MEC Stock Option (right to buy) 27.6K Feb 28, 2025 Common Stock 27.6K $17.00 Direct F4
holding MEC Stock Option (right to buy) 43.3K Feb 28, 2025 Common Stock 43.3K $14.01 Direct F5
holding MEC Stock Option (right to buy) 77.4K Feb 28, 2025 Common Stock 77.4K $10.32 Direct F6
holding MEC Stock Option (right to buy) 44.7K Feb 28, 2025 Common Stock 44.7K $16.22 Direct F7
holding MEC Restricted Stock Units 53K Feb 28, 2025 Common Stock 53K $0.00 Direct F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The Form 4 filed on February 28, 2023 reported incorrectly the total number of securities owned directly by the reporting person following the reported transaction. As a result of this error, the total amount of securities beneficially owned as reported in Table I of each of those Forms 4 filed subsequent to February 28, 2023 are showing 7,190 more shares than actually owned by the reporting person. As of the date of this filing, the reporting person owns the direct number of shares shown above.
F2 Reflects the most recent ESOP and 401(k) balance.
F3 The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.
F4 The options will vest 50% on each of May 8, 2020 and May 8, 2021.
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 28, 2023 and February 28, 2024.
F7 The options will vest 50% on each of February 28, 2024 and February 28, 2025.
F8 The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.