Eric J Welak Form 4 Mayville Engineering / Eric J Welak ownership change

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

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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).

1. Name and Address of Reporting Person^*

Welak Eric J

(Last) (First) (Middle)

715 SOUTH STREET

(Street)

MAYVILLE WI 53050

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Mayville Engineering Company, Inc. [ MEC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
EVP - Fabrication

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2021

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/27/2021		M		2,985	A	$0	13,644	D
Common Stock	02/27/2021		F		1,113	D	$14.01	12,531	D
Common Stock								43,827(1)	I	by ESOP and/or 401(k) Plan

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	02/27/2021		M			2,985	(2)	(2)	Common Stock	2,985	$0	2,985	D
Restricted Stock Units	$0	02/28/2021		A		3,391		(3)	(3)	Common Stock	3,391	$0	3,391	D
Stock Option (right to buy)	$14.01	02/28/2021		A		6,855		(4)	02/28/2031	Common Stock	6,855	$0	6,855	D
Stock Option (right to buy)	$7.12							(5)	02/27/2030	Common Stock	14,965		14,965	D
Restricted Stock Units	$0							(6)	(6)	Common Stock	1,250		1,250	D
Stock Option (right to buy)	$17							(7)	05/08/2029	Common Stock	7,002		7,002	D

Explanation of Responses:

1. Reflects the most recent ESOP and 401(k) balance.

2. The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

3. The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

4. The options will vest 50% on each of February 28, 2022 and February 28, 2023.

5. The options will vest 50% on each of February 27, 2021 and February 27, 2022.

6. The restricted stock units will vest 50% on each of May 8, 2020 and May 8, 2021.

7. The options will vest 50% on each of May 8, 2020 and May 8, 2021.

	/s/ Russell E. Ryba, Attorney-in-Fact for Eric J. Welak	03/02/2021
	** 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).
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