Mayville Engineering Company, Inc.
Mayville Engineering Company, Inc. (MEC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MEC · as of Sep 30, 2024
Ownership Breakdown
118
Institutional Holders
▲ 16 vs Q2
$246.30M
Total Inst. Value
▲ $66.82M vs Q2
20.49M
Shares Outstanding
freeFloat 70.72%
11.68M
13F Shares Held
▲ 911,493 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MEC largest shareholders · institutional ownership
Q3 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC metal forgings & stampings | 2.47M | 11.95% | 11.95% | $52.17B | Oct 18, 2024 | ▼ 104.4K |
BLACKROCK, INC. metal forgings & stampings | 897.6K | 4.33% | 4.33% | $18.92B | Nov 13, 2024 | NEW |
TOCQUEVILLE ASSET MANAGEMENT L.P. metal forgings & stampings | 629.7K | 3.04% | 3.04% | $13.27B | Nov 8, 2024 | ▼ 13.7K |
DIMENSIONAL FUND ADVISORS LP metal forgings & stampings | 619.6K | 2.99% | 2.99% | $13.06B | Nov 7, 2024 | ▲ 102.3K |
VANGUARD GROUP INC metal forgings & stampings | 571.5K | 2.76% | 2.76% | $12.05B | Nov 13, 2024 | ▲ 12.1K |
ROYCE & ASSOCIATES LP metal forgings & stampings | 560.5K | 2.71% | 2.71% | $11.82B | Nov 6, 2024 | ▼ 99.6K |
GRANAHAN INVESTMENT MANAGEMENT, LLC metal forgings & stampings | 338.2K | 1.63% | 1.63% | $7.13B | Nov 14, 2024 | ▲ 13.8K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC metal forgings & stampings | 299.9K | 1.45% | 1.45% | $6.32B | Nov 12, 2024 | ▲ 49.1K |
GEODE CAPITAL MANAGEMENT, LLC metal forgings & stampings | 277.7K | 1.34% | 1.34% | $5.85B | Nov 12, 2024 | ▲ 14.1K |
ANCORA ADVISORS, LLC metal forgings & stampings | 247.0K | 1.19% | 1.19% | $5.21B | Nov 14, 2024 | ▼ 320 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2024 vs prior quarter
Q3 2024
28
Increased
+1.01M shares5
New Positions
first time holders12
Decreased
−377.0K shares0
Sold Out
fully exitedNet shares change (top 50)
+631.9K
+1.01M / −377.0K
Net new holders
+21
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MEC insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
14
Buy transactions
13
Sell transactions
1.08
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Reddy Jagadeesh A President & CEO | Jun 1, 2026 | Sale | 17,294 | $30.00 | $518.8K | 141.1K | Form 4 ↗ |
Reddy Jagadeesh A President & CEO | Jun 1, 2026 | Sale | 17,942 | $30.00 | $538.3K | 140.4K | Form 4 ↗ |
Raber Ryan F EVP - Strategy, Sales & Mktg | May 26, 2026 | Sale | 20,000 | $26.00 | $520.0K | 87.0K | Form 4 ↗ |
Nichols Craig D SVP, Operations & Supply Chain | May 21, 2026 | Sale | 4,000 | $23.24 | $93.0K | 146 | Form 4 ↗ |
Leuba Sean P SVP, GC & Secretary | May 8, 2026 | Gift | 1,015 | — | — | 19.5K | Form 4 ↗ |
Reddy Jagadeesh A President & CEO | May 7, 2026 | Sale | 10,332 | $25.72 | $265.7K | 169.9K | Form 4 ↗ |
Reddy Jagadeesh A President & CEO | May 7, 2026 | Sale | 11,464 | $26.11 | $299.3K | 158.4K | Form 4 ↗ |
Wingfield Tania director | Apr 21, 2026 | Award | 5,959 | — | — | 6.0K | Form 4 ↗ |
Schyvinck Christine M. Chair of the Board | Apr 21, 2026 | Award | 5,959 | — | — | 6.0K | Form 4 ↗ |
Rothman Jay O. director | Apr 21, 2026 | Award | 5,959 | — | — | 71.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Mayville Engineering Company, Inc. (MEC) is primarily owned by institutional investors, who hold approximately 57.0% of total shares outstanding. Company insiders own approximately 29.28%, while retail and public investors account for the remaining 13.71%.
The largest institutional shareholder of Mayville Engineering Company, Inc. is ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC, holding approximately 2.47 million shares — equal to 11.95% of outstanding shares — as of September 30, 2024.
A total of 118 institutional investors currently hold MEC stock, with a combined institutional value of approximately $246,299,344 as of the most recent 13F filing period.
Frequently asked questions
MEC ownershipMayville Engineering Company, Inc. (MEC) is primarily owned by institutional investors, who hold approximately 57.0% of shares. The largest shareholder is ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC with a 11.95% stake. Company insiders hold 29.28%. Data sourced from SEC Form 13F as of September 30, 2024.