Mayville Engineering (MEC) director Christine Schyvinck files initial Form 3

Rhea-AI Filing Summary

Mayville Engineering Company, Inc. director Christine M. Schyvinck filed an initial Form 3, which is a required statement of insider holdings when someone becomes a reporting person. This filing reports no transactions or derivative positions and does not list any specific share holdings at this time.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Schyvinck Christine M.

(Last) (First) (Middle)

135 SOUTH 84TH STREET

SUITE 300

(Street)

MILWAUKEE WISCONSIN 53214

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/21/2026

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

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	Garrett F. Bishop, Attorney-in-Fact for Christine M. Schyvinck	04/23/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the Mayville Engineering (MEC) Form 3 filing report?

The Form 3 filing reports that Christine M. Schyvinck is a director of Mayville Engineering Company, Inc. It serves as her initial statement as an insider and shows no reported transactions, derivative positions, or detailed share holdings in this filing.

Who is the reporting person in the Mayville Engineering (MEC) Form 3?

The reporting person is Christine M. Schyvinck, identified in the filing as a director of Mayville Engineering Company, Inc. She is not listed as an officer or 10% owner, and this document establishes her insider reporting status.

Does the MEC Form 3 show any stock purchases or sales by Christine Schyvinck?

No. The Form 3 data show zero buy, sell, acquire, dispose, or other transaction counts and zero related share amounts. It is purely an initial insider reporting statement without any trades or derivative exercises disclosed.

Are any derivative securities reported in the Mayville Engineering (MEC) Form 3?

No derivative securities are reported. The derivative summary is empty, and the exercise-related counts and share amounts are all zero, indicating no options, warrants, or similar derivative positions are disclosed in this initial filing.

Does the MEC Form 3 indicate Christine Schyvinck is a 10% owner?

No. The Form 3 data specifically indicate she is not a 10% owner. She is classified as a director only, with no additional roles such as officer or other insider categories noted in the filing details.