Ryan F. Raber - 26 May 2026 Form 4 Insider Report for Mayville Engineering Company, Inc. (MEC)

Reporting relationship
EVP - Strategy, Sales & Mktg
Issuer ticker
MEC
Reported as of
26 May 2026
Net transaction value
-$520,000
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
27 May 2026, 16:53:12 UTC
Prior SEC filing
17 Mar 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Garrett F. Bishop, Attorney-in-Fact for Ryan F. Raber

Key filing fact

Ryan F. Raber filed Form 4 for Mayville Engineering Company, Inc. (MEC) on 27 May 2026.

Key facts

  • This page summarizes Ryan F. Raber's Form 4 filing for Mayville Engineering Company, Inc. (MEC).
  • 1 reported transaction and 7 derivative rows are listed below.
  • Accepted by SEC: 27 May 2026, 16:53.

Change

  • Previous filing in this sequence was filed on 17 Mar 2026.
  • Current net transaction value: -$520,000.

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 0001775978 Primary reporting owner

Raber Ryan F

Relationship
EVP - Strategy, Sales & Mktg
Address
135 SOUTH 84TH STREET, SUITE 300, MILWAUKEE
Signature
/s/ Garrett F. Bishop, Attorney-in-Fact for Ryan F. Raber
Signature date
27 May 2026

Reported non-derivative transactions

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

MEC transaction

Common Stock

Sale

Transaction value
$520,000
Shares
-20,000
Change %
-19%
Price
$26.00
Shares after
86,970
Date
26 May 2026
Ownership
Direct
MEC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
26,287
Date
26 May 2026
Ownership
by ESOP and/or 401(k) Plan
Footnotes
F1

Reported derivative securities

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

MEC holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
27,595
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
27,595
Exercise price
$17.00
Footnotes
F2
MEC holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
43,291
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
43,291
Exercise price
$14.01
Footnotes
F3
MEC holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
77,426
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
77,426
Exercise price
$10.32
Footnotes
F4
MEC holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
44,720
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
44,720
Exercise price
$16.22
Footnotes
F5
MEC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
17,650
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
17,650
Exercise price
$0.000000
Footnotes
F6
MEC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
12,452
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
12,452
Exercise price
$0.000000
Footnotes
F7
MEC holding Derivative

Restricted Stock Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
29,155
Date
26 May 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
29,155
Exercise price
$0.000000
Footnotes
F8
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

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

Footnote F2

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

Footnote F3

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

Footnote F4

The options will vest 50% on each of February 28, 2023 and February 28, 2024.

Footnote F5

The options will vest 50% on each of February 28, 2024 and February 28, 2025.

Footnote F6

The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

Footnote F7

The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.

Footnote F8

The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.

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