$MEC

$13.86 +$0.76 (5.8%) Close

$MEC Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 25.5M shares outstanding

Who owns MEC?

By type of holder

Institutions 82.7% Insiders 3.7% Everyone else 13.6%

Concentration Top 10 holders own 37.1%

Allspring Global Investments Holdings, LLC 4.2% · Portolan Capital Management, LLC 5.1%

Institutional ownership

82.7%

+26.3 pts vs last qtr

Institutional holders

154

+30 vs last qtr

Net shares bought

+6.7M

by institutions in Q2 2026

New / sold out

52 / 22

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +1.3M
Driehaus Capital Management LLC NEW +846.4K

Biggest sellers in Q2 2026

Allspring Global Investments Holdings, LLC −927.4K
Ameriprise Financial Inc SOLD OUT −351.8K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.55M

4 notices from 2 people

Shares covered

56.1K

0.22% of the company

Arranged in advance

100%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Jagadeesh Reddy Director 10b5-1 $1.04M
Jagadeesh A Reddy Director 10b5-1 $509K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2019–FY2025

+17.3%

+2.70% a year

Each share's claim on the business

−14.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$25.4M vs $29.9M

over 7 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years24% 3–5 years21% 1–3 years7% Under 1 year48%

Quarterly turnover

45.3%

of institutional shares changed hands

Top 10 managers, median time held

4.3 years

Super Investors

Investment managers reporting MEC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AG Allspring Global Investments Holdings, LLC	1.1M	4.21%	−927.4K (−46.4%)	2021	0.1%
Shares held by quarter Peak holding2.5M (Q3'24) Change over 8 quarters−1.4M Share of the company4.210% Allspring Global Investments Holdings, LLC's full portfolio →
PC Portolan Capital Management, LLC	1.3M	5.10%	+478.1K (+58.2%)	Q4 '25	1.8%
Shares held by quarter Peak holding1.3M (Q2'26) Change over 8 quarters+1.3M Share of the company5.100% Portolan Capital Management, LLC's full portfolio →

Allspring Global Investments Holdings, LLC

1.1M

% of company

4.21%

Change vs last qtr

−927.4K (−46.4%)

Held since

2021

Portolan Capital Management, LLC

1.3M

% of company

5.10%

Change vs last qtr

+478.1K (+58.2%)

Held since

Q4 '25

28 more super investors behind a free account

See every manager holding Mayville Engineering Company Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MEC on Form N-PORT; together they hold 34.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
AS Allspring Special Small Cap Value Fund Allspring Funds Trust	$26.8M	715.7K	2.81%	0.91%	June 30, 2026
FG Fidelity Growth Strategies Fund Fidelity Mt. Vernon Street Trust	$24.8M	1.3M	5.03%	0.63%	August 31, 2026

Allspring Special Small Cap Value Fund

Allspring Funds Trust

Position value

$26.8M

% of company

2.81%

% of the fund

0.91%

As of

June 30, 2026

Fidelity Growth Strategies Fund

Fidelity Mt. Vernon Street Trust

Position value

$24.8M

% of company

5.03%

% of the fund

0.63%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding Mayville Engineering Company Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
BT Butz Todd M Insider	251.7K	0.99%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.990% Butz Todd M's insider activity →
CT Christen Timothy L Insider	153.8K	0.60%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.600% Christen Timothy L's insider activity →

Butz Todd M

Insider

251.7K

% of company

0.99%

Change vs last qtr

—

Held since

—

Christen Timothy L

Insider

153.8K

% of company

0.60%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Mayville Engineering Company Inc.

Comments