MEC · Mayville Engineering Company, Inc. · Insider Trading

$13.89 -0.05 (-0.36%) At close · Oct 20

Russell 2000 member Rebalance outlook locked

Market Cap

$354.20M

25.50M

Volume · Oct 20 315.45K Avg daily vol (3M) 556.74K

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Query insider transactions through the insider trading API or MCP →

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-1

Net shares bought

-0.05%

Net buy value

-$327,031

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-08-06	Leuba Sean P	SVP, Corp. Development & GC	Sell↓ Filing footnotes — Common Stock (Direct) The price in Column 4 is a weighted average price. The prices actually received ranged from $25.26 to $25.46. 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.	Common Stock	12,855	$25.44	$327,031	6,633
2026-06-11	Reddy Jagadeesh A	Director, President & CEO	Sell↓ Filing footnotes — Common Stock (Direct) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. The price in Column 4 is a weighted average price. The prices actually received ranged from $35.00 to $35.28. 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.	Common Stock	15,688	$35.05	$549,824	124,105
2026-06-08	Reddy Jagadeesh A	Director, President & CEO	Sell↓ Filing footnotes — Common Stock (Direct) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. The price in Column 4 is a weighted average price. The prices actually received ranged from $35.00 to $35.02. 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.	Common Stock	1,300	$35.01	$45,510	139,793
2026-06-01	Reddy Jagadeesh A	Director, President & CEO	Sell↓ Filing footnotes — Common Stock (Direct) 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.	Common Stock	17,294	$30.00	$518,822	141,093
2026-05-26	Raber Ryan F	EVP - Strategy, Sales & Mktg	Sell↓	Common Stock	20,000	$26.00	$520,000	86,970
2026-05-21	Nichols Craig D	SVP, Operations & Supply Chain	Sell↓	Common Stock	4,000	$23.24	$92,960	146
2026-05-08	Leuba Sean P	SVP, Corp. Development & GC	Gift↑	Common Stock	1,015	—	—	19,488
2026-05-07	Reddy Jagadeesh A	Director, President & CEO	Sell↓ Filing footnotes — Common Stock (Direct) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. The price in Column 4 is a weighted average price. The prices actually received ranged from $26.00 to $26.28. 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.	Common Stock	11,464	$26.11	$299,325	158,387
2026-05-07	Reddy Jagadeesh A	Director, President & CEO	Sell↓ Filing footnotes — Common Stock (Direct) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. The price in Column 4 is a weighted average price. The prices actually received ranged from $25.00 to $25.99. 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.	Common Stock	10,332	$25.72	$265,739	169,851
2026-04-21	Fisher Steven L	Director	Convert↑	Common Stock	10,331	—	—	80,713
2026-04-21	Fisher Steven L	Director	Convert↑	Common Stock	14,485	—	—	70,382
2026-04-21	McCormick Robert L	President and CEO	Convert↑	Common Stock	10,331	—	—	29,078
2026-04-21	Fisher Steven L	Director	Convert↓ Filing footnotes — Director Deferred Stock Units (Direct) The balance includes vested RSUs that were deferred by the reporting person, which settled upon the reporting person's retirement or separation from the company.	Director Deferred Stock Units	14,485	—	—	0
2026-04-21	Kent Jennifer J.	EVP, Chief People & Legal Ofcr	Award↑ Filing footnotes — Director Deferred Stock Units (Direct) 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.	Director Deferred Stock Units	5,959	—	—	30,775
2026-04-21	Fisher Steven L	Director	Convert↑	Common Stock	19,532	—	—	55,897
2026-04-21	Fisher Steven L	Director	Convert↑	Common Stock	5,883	—	—	36,365
2026-04-21	Christen Timothy L	Director	Convert↓ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units vested 100% one year from the grant date.	Director Restricted Stock Units	12,397	—	—	0
2026-04-21	Schyvinck Christine M.	Director	Award↑ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units will vest 100% at the earlier of one year or the next annual shareholder meeting.	Director Restricted Stock Units	5,959	—	—	5,959
2026-04-21	Wingfield Tania	Director	Convert↑	Common Stock	5,949	—	—	5,949
2026-04-21	Fisher Steven L	Director	Convert↓ Filing footnotes — Director Deferred Stock Units (Direct) The balance includes vested RSUs that were deferred by the reporting person, which settled upon the reporting person's retirement or separation from the company.	Director Deferred Stock Units	5,883	—	—	34,017
2026-04-21	Wingfield Tania	Director	Award↑ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units will vest 100% at the earlier of one year or the next annual shareholder meeting.	Director Restricted Stock Units	5,959	—	—	5,959
2026-04-21	Christen Timothy L	Director	Award↑ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units will vest 100% at the earlier of one year or the next annual shareholder meeting.	Director Restricted Stock Units	7,150	—	—	7,150
2026-04-21	Fisher Steven L	Director	Convert↓ Filing footnotes — Director Deferred Stock Units (Direct) The balance includes vested RSUs that were deferred by the reporting person, which settled upon the reporting person's retirement or separation from the company.	Director Deferred Stock Units	19,532	—	—	14,485
2026-04-21	Rothman Jay O.	Director	Award↑ Filing footnotes — Director Deferred Stock Units (Direct) 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.	Director Deferred Stock Units	5,959	—	—	71,451
2026-04-21	Christen Timothy L	Director	Convert↑	Common Stock	12,397	—	—	153,804
2026-04-21	McCormick Robert L	President and CEO	Award↑ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units will vest 100% at the earlier of one year or the next annual shareholder meeting.	Director Restricted Stock Units	5,959	—	—	5,959
2026-04-21	McCormick Robert L	President and CEO	Convert↓ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units vested 100% one year from the grant date.	Director Restricted Stock Units	10,331	—	—	0
2026-04-21	Fisher Steven L	Director	Convert↓ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units vested 100% one year from the grant date.	Director Restricted Stock Units	10,331	—	—	0
2026-04-21	Wingfield Tania	Director	Convert↓ Filing footnotes — Director Restricted Stock Units (Direct) The restricted stock units vested 100% one year from the grant date.	Director Restricted Stock Units	5,949	—	—	0
2026-03-15	Nichols Craig D	SVP, Operations & Supply Chain	Award↑ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.	Restricted Stock Units	14,998	—	—	14,998
2026-03-15	Lehr Rachele Marie	Chief Financial Officer	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.	Restricted Stock Units	5,808	—	—	11,614
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Tax↓	Common Stock	14,150	$16.67	$235,881	106,970
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Award↑ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.	Restricted Stock Units	29,155	—	—	29,155
2026-03-15	Lehr Rachele Marie	Chief Financial Officer	Award↑ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.	Restricted Stock Units	16,497	—	—	16,497
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.	Restricted Stock Units	12,452	—	—	24,901
2026-03-15	Nichols Craig D	SVP, Operations & Supply Chain	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.	Restricted Stock Units	5,808	—	—	11,614
2026-03-15	Lehr Rachele Marie	Chief Financial Officer	Convert↑	Common Stock	5,808	—	—	35,129
2026-03-15	Leuba Sean P	SVP, Corp. Development & GC	Convert↑	Common Stock	7,263	—	—	19,104
2026-03-15	Nichols Craig D	SVP, Operations & Supply Chain	Convert↑	Common Stock	5,808	—	—	5,808
2026-03-15	Reddy Jagadeesh A	Director, President & CEO	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.	Restricted Stock Units	27,643	—	—	55,284
2026-03-15	Reddy Jagadeesh A	Director, President & CEO	Tax↓	Common Stock	30,062	$16.67	$501,134	180,183
2026-03-15	Lehr Rachele Marie	Chief Financial Officer	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.	Restricted Stock Units	8,560	—	—	8,560
2026-03-15	Leuba Sean P	SVP, Corp. Development & GC	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.	Restricted Stock Units	4,646	—	—	9,292
2026-03-15	Leuba Sean P	SVP, Corp. Development & GC	Tax↓	Common Stock	5,277	$16.67	$87,968	18,473
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Convert↑	Common Stock	12,452	—	—	121,120
2026-03-15	Reddy Jagadeesh A	Director, President & CEO	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.	Restricted Stock Units	36,317	—	—	36,316
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Convert↑	Common Stock	17,650	—	—	108,668
2026-03-15	Leuba Sean P	SVP, Corp. Development & GC	Award↑ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.	Restricted Stock Units	13,498	—	—	13,498
2026-03-15	Reddy Jagadeesh A	Director, President & CEO	Convert↑	Common Stock	27,643	—	—	210,245
2026-03-15	Raber Ryan F	EVP - Strategy, Sales & Mktg	Convert↓ Filing footnotes — Restricted Stock Units (Direct) The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.	Restricted Stock Units	17,650	—	—	17,650

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 395 transactions

Key facts CIK 1766368 CUSIP 578605107 13F (30d) 9 filings 9 filers Visit website Investor relations