Security key
578605107
Mayville Engineering Company, Inc. - COMMON STOCK (MEC)
CUSIP: 578605107
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 13,849,261
- Total 13F value
- $259,718,429
- Share change
- +360,695
- Put/Call ratio
- 96%
- SEC-reported price per share
- $18.72
- Number of holders
- 121
- Value change
- +$8,554,832
- Number of buys
- 59
- Number of sells
- 53
- Shares outstanding
- 25,603,402
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
121
Top holders
10
MEC full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q3 2025
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
Hilve Holdings Ltd
Disclosed value leader
Allspring Global Investme...
Comparable rows
15/15
Latest evidence
27 Oct 2025
13D/G
13F
Lead comparable stake: 4.9%
13D/G row: Hilve Holdings Ltd
Showing 1-6 of 15 holder rows.
Quick read
Hilve Holdings Ltd leads the comparable SEC ownership view at 4.9%.
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 Hilve Holdings Ltd's linked filing trail.
Comparable ownership
Top 5
Hilve Holdings Ltd
4.9%
Allspring Global Investments Hold...
9.4%
BlackRock, Inc.
3.6%
VANGUARD GROUP INC
3.4%
DIMENSIONAL FUND ADVISORS LP
3.3%
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 |
|---|---|---|---|---|---|
| Hilve Holdings Ltd |
13D/G
|
4.9%
|
$18,331,868
995,756 shares
|
$0 | 27 Oct 2025 |
| Allspring Global Investments Holdings, LLC |
13F
Company
|
9.4%
|
$32,887,445
2,411,103 shares
|
— | 30 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
3.6%
|
$12,588,192
914,839 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
3.4%
|
$11,994,028
871,659 shares
|
— | 30 Sep 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
3.3%
|
$11,656,247
847,123 shares
|
— | 30 Sep 2025 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
2.2%
|
$7,798,026
566,717 shares
|
— | 30 Sep 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 Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
121
Shares
13,849,261
Rows available
121
| 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 Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
103
Q4 2025 holders
121
Holder diff
18
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend