### 4/A - FORM 4/A
SEC FORM
4/A SEC Form 4
FORM 4 | UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 | OMB APPROVAL |
OMB Number: | 3235-0287 |
Estimated average burden |
hours per response: | 0.5 |
|
|
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| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue.
See
Instruction 1(b). |
X |
| Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. |
1. Name and Address of Reporting Person * Reddy Jagadeesh A |
(Last) | (First) | (Middle) |
135 SOUTH 84TH STREET |
SUITE 300 |
(Street) MILWAUKEE |
WISCONSIN
| 53214 |
(City) | (State) | (Zip) |
UNITED STATES |
(Country) | 2. Issuer Name and Ticker or Trading Symbol
Mayville Engineering Company, Inc.
[ MEC ]
| 5. Relationship of Reporting Person(s) to Issuer
(Check all applicable) X | Director | | 10% Owner |
X | Officer (give title below) | | Other (specify below) |
| President & CEO | | |
|
2a. Foreign Trading Symbol
|
3. Date of Earliest Transaction
(Month/Day/Year)
06/01/2026 | 6. Individual or Joint/Group Filing (Check Applicable Line)
X | Form filed by One Reporting Person |
| Form filed by More than One Reporting Person |
|
4. If Amendment, Date of Original Filed
(Month/Day/Year)
06/02/2026
|
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned |
1. Title of Security (Instr.
3)
| 2. Transaction Date
(Month/Day/Year) | 2A. Deemed Execution Date, if any
(Month/Day/Year) | 3. Transaction Code (Instr.
8)
| 4. Securities Acquired (A) or Disposed Of (D) (Instr.
3, 4 and 5)
| 5.
Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr.
3 and 4)
| 6. Ownership Form: Direct (D) or Indirect (I) (Instr.
4)
| 7. Nature of Indirect Beneficial Ownership (Instr.
4)
|
Code | V | Amount | (A) or (D) | Price |
Common Stock | 06/01/2026 | | S (1) | | 17,294 (2) | D | $ 30.0001 (3) | 141,093 (2) | D | |
Common Stock | | | | | | | | 2,300 (4) | I | by ESOP and/or 401(k) Plan |
Common Stock | | | | | | | | 380 | I | By Daughter |
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) |
1. Title of Derivative Security (Instr.
3)
| 2. Conversion or Exercise Price of Derivative Security
| 3. Transaction Date
(Month/Day/Year) | 3A. Deemed Execution Date, if any
(Month/Day/Year) | 4. Transaction Code (Instr.
8)
| 5.
Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr.
3, 4 and 5)
| 6. Date Exercisable and Expiration Date
(Month/Day/Year) | 7. Title and Amount of Securities Underlying Derivative Security (Instr.
3 and 4)
| 8. Price of Derivative Security (Instr.
5)
| 9.
Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr.
4)
| 10. Ownership Form: Direct (D) or Indirect (I) (Instr.
4)
| 11. Nature of Indirect Beneficial Ownership (Instr.
4)
|
Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares |
Restricted Stock Units | $ 0 | | | | | | |
(5) |
(5) | Common Shares | 36,317 | | 36,317 | D | |
Restricted Stock Units | $ 0 | | | | | | |
(6) |
(6) | Common Shares | 55,284 | | 55,284 | D | |
Restricted Stock Units | $ 0 | | | | | | |
(7) |
(7) | Common Shares | 74,986 | | 74,986 | D | |
Stock Option (right to buy) | $ 16.22 | | | | | | |
(8) |
(8) | Common Shares | 88,901 | | 88,901 | D | |
Explanation of Responses: |
1. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. |
2. The Form 4 filed on June 2, 2026 reported the sale of 17,942 shares on June 1, 2026. This amended Form 4 is being filed to report that the reporting person actually sold 17,294 shares on June 1, 2026 and to correct the number of shares beneficially owned following the reported transaction. |
3. The price in Column 4 is a weighted average price. The prices actually received ranged from $30.00 to $30.01. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4 utilizing a weighted average price. |
4. Reflects the most recent ESOP and 401(k) balance. |
5. The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027. |
6. The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028. |
7. The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029. |
8. The options will vest 50% on each of February 28, 2024 and February 28, 2025. |
| /s/ Garrett F. Bishop, Attorney-in-Fact for Jagadeesh A. Reddy | 06/03/2026 |
| ** Signature of Reporting Person | Date |
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. |
* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v). |
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations
See
18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient,
see
Instruction 6 for procedure. |
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. |
* Form 4: SEC 1474 (03-26) |
### 4/A - FORM 4/A
X0609
4/A
2026-06-01
2026-06-02
0001766368
Mayville Engineering Company, Inc.
MEC
0001937748
Reddy Jagadeesh A
false
135 SOUTH 84TH STREET
SUITE 300
MILWAUKEE
WI
53214
true
true
false
false
President & CEO
true
Common Stock
2026-06-01
4
S
false
17294
30.0001
D
141093
D
Common Stock
2300
I
by ESOP and/or 401(k) Plan
Common Stock
380
I
By Daughter
Restricted Stock Units
0
Common Shares
36317
36317
D
Restricted Stock Units
0
Common Shares
55284
55284
D
Restricted Stock Units
0
Common Shares
74986
74986
D
Stock Option (right to buy)
16.22
Common Shares
88901
88901
D
The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025.
The Form 4 filed on June 2, 2026 reported the sale of 17,942 shares on June 1, 2026. This amended Form 4 is being filed to report that the reporting person actually sold 17,294 shares on June 1, 2026 and to correct the number of shares beneficially owned following the reported transaction.
The price in Column 4 is a weighted average price. The prices actually received ranged from $30.00 to $30.01. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4 utilizing a weighted average price.
Reflects the most recent ESOP and 401(k) balance.
The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.
The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.
The options will vest 50% on each of February 28, 2024 and February 28, 2025.
/s/ Garrett F. Bishop, Attorney-in-Fact for Jagadeesh A. Reddy
2026-06-03