Jay O Rothman - 21 Apr 2026 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Reporting relationship: Director
Issuer ticker: MEC
Reported as of: 21 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Apr 2026, 17:05:05 UTC
Prior SEC filing: 23 May 2025
Next SEC filing: 22 May 2026
Source filing: View source filing
Reporting owner signature: Garrett F. Bishop, Attorney-in-Fact for Jay O. Rothman

Key filing fact

Jay O Rothman filed Form 4 for Mayville Engineering Company, Inc. (MEC) on 23 Apr 2026.

Key facts

This page summarizes Jay O Rothman's Form 4 filing for Mayville Engineering Company, Inc. (MEC).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 23 Apr 2026, 17:05.

Change

Previous filing in this sequence was filed on 23 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001705018 Primary reporting owner

Rothman Jay O.

Relationship: Director
Address: 135 SOUTH 84TH STREET, SUITE 300, MILWAUKEE
Signature: Garrett F. Bishop, Attorney-in-Fact for Jay O. Rothman
Signature date: 23 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MEC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 24,721
Date: 21 Apr 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MEC transaction Derivative

Director Deferred Stock Units

Award

Transaction value
Shares: +5,959
Change %: +9.1%
Price: $0.000000^*
Shares after: 71,451
Date: 21 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,959
Exercise price: $0.000000
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The balance includes vested RSUs that were deferred by the reporting person, which will be settled upon the reporting person's retirement or separation from the company.