Rachele M. Lehr - Feb 28, 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Rachele M. Lehr
Stock symbol
MEC
Transactions as of
Feb 28, 2025
Transactions value $
-$42,368
Form type
4
Date filed
3/4/2025, 06:56 PM
Previous filing
Nov 8, 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 +8.85K +117.71% $0.00 16.4K Feb 28, 2025 Direct
transaction MEC Common Stock Tax liability -$42.4K -2.83K -17.31% $14.95 13.5K Feb 28, 2025 Direct

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 -1.77K -100% $0.00 0 Feb 28, 2025 Common Stock 1.77K $0.00 Direct F1
transaction MEC Restricted Stock Units Options Exercise $0 -7.08K -100% $0.00 0 Feb 28, 2025 Common Stock 7.08K $0.00 Direct F2
holding MEC Restricted Stock Units 25.7K Feb 28, 2025 Common Stock 25.7K $0.00 Direct F3
holding MEC Stock Option (right to buy) 24.8K Feb 28, 2025 Common Stock 24.8K $14.12 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.
F2 The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.
F3 The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
F4 The options will vest 50% on each of February 28, 2024 and February 28, 2025.