Jagadeesh A. Reddy - 19 Jul 2025 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Role
President & CEO, Director
Signature
/s/ Russell E. Ryba, Attorney-in-Fact for Jagadeesh A. Reddy
Issuer symbol
MEC
Transactions as of
19 Jul 2025
Net transactions value
-$230,479
Form type
4
Filing time
21 Jul 2025, 17:41:18 UTC
Previous filing
18 Mar 2025
Next filing
08 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Reddy Jagadeesh A President & CEO, Director 135 SOUTH 84TH STREET, SUITE 300, MILWAUKEE /s/ Russell E. Ryba, Attorney-in-Fact for Jagadeesh A. Reddy 21 Jul 2025 0001937748

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MEC Common Stock Options Exercise $0 +32,051 +26% $0.000000 153,849 19 Jul 2025 Direct
transaction MEC Common Stock Tax liability $230,479 -15,064 -9.8% $15.30 138,785 19 Jul 2025 Direct
holding MEC Common Stock 2,300 19 Jul 2025 by ESOP and/or 401(k) Plan F1
holding MEC Common Stock 380 19 Jul 2025 By Daughter

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 -32,051 -100% $0.000000 0 19 Jul 2025 Common Shares 32,051 $0.000000 Direct F2
holding MEC Restricted Stock Units 72,633 19 Jul 2025 Common Shares 72,633 $0.000000 Direct F3
holding MEC Restricted Stock Units 82,927 19 Jul 2025 Common Shares 82,927 $0.000000 Direct F4
holding MEC Stock Option (right to buy) 88,901 19 Jul 2025 Common Shares 88,901 $16.22 Direct F5
* 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 1/3 on each of July 19, 2023, 2024 and 2025.
F3 The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
F4 The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.
F5 The options will vest 50% on each of February 28, 2024 and February 28, 2025.