Security key
578605107
Mayville Engineering Company, Inc. - COMMON STOCK (MEC)
CUSIP: 578605107
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 13,280,220
- Total 13F value
- $183,556,400
- Share change
- +636,625
- SEC-reported price per share
- $13.76
- Number of holders
- 103
- Value change
- +$8,031,418
- Number of buys
- 55
- Number of sells
- 47
- Shares outstanding
- 25,603,402
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
103
Top holders
10
MEC full security history
Ownership snapshot
Full 13F holder table
Mayville Engineering Company, Inc. SEC filings
Mayville Engineering Company, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 578605107
Recent filing periods:
Ownership snapshot
Top reported holders of MEC - Mayville Engineering Company, Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Allspring Global Investme...
Disclosed value leader
Allspring Global Investme...
Comparable rows
15/15
Latest evidence
30 Jun 2025
13F
Lead comparable stake: 9.6%
Showing 1-6 of 15 holder rows.
Quick read
Allspring Global Investments Holdings, LLC leads the comparable SEC ownership view at 9.6%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Allspring Global Investments Holdings, LLC's linked filing trail.
Comparable ownership
Top 5
Allspring Global Investments Hold...
9.6%
BlackRock, Inc.
3.6%
VANGUARD GROUP INC
3.4%
DIMENSIONAL FUND ADVISORS LP
3.2%
TOCQUEVILLE ASSET MANAGEMENT L.P.
2.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC |
13F
Company
|
9.6%
|
$39,773,424
2,446,090 shares
|
— | 30 Jun 2025 |
| BlackRock, Inc. |
13F
Company
|
3.6%
|
$14,574,497
913,189 shares
|
— | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
3.4%
|
$14,079,833
882,195 shares
|
— | 30 Jun 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
3.2%
|
$12,992,327
814,034 shares
|
— | 30 Jun 2025 |
| TOCQUEVILLE ASSET MANAGEMENT L.P. |
13F
Company
|
2.2%
|
$9,116,145
571,187 shares
|
— | 30 Jun 2025 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
2.2%
|
$8,919,230
558,849 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
103
Shares
13,280,220
Rows available
103
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
110
Q3 2025 holders
103
Holder diff
-7
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend