RENAISSANCE TECHNOLOGIES LLC
Position in MEC — Mayville Engineering Company, Inc.
CIK 1037389
NEW YORK, NY
Position in MEC
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$1,048,880
-$80,175 QoQ
Shares Held
28,000
-55.5% QoQ
Ownership
0.110%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#81
of 154 holders
Holding Since
Dec 2020
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MEC Over Time
Shares Held
Position Value (USD)
Position in Metal Fabrication
Industrials · as of Jun 30, 2026RENAISSANCE TECHNOLOGIES LLC holds $77,655,748 across 9 Metal Fabrication names. MEC ranks #6 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PRLB |
Proto Labs Inc
|
469,251 | $38,248,649 | |
| 2 | ESAB |
ESAB Corp
|
155,900 | $15,376,417 | |
| 3 | MLI |
Mueller Industries Inc
|
220,400 | $13,546,886 | |
| 4 | WOR |
Worthington Enterprises, Inc.
|
73,800 | $3,967,488 | |
| 5 | AP |
Ampco Pittsburgh Corp
|
414,419 | $3,584,724 | |
| 6 | MEC |
Mayville Engineering Company, Inc.
This page
|
28,000 | $1,048,880 | |
| 7 | TG |
Tredegar Corp
|
112,300 | $893,908 | |
| 8 | RYZ |
Ryerson Holding Corp
|
35,502 | $873,704 |
All Filings in MEC
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,048,880 | 28,000 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $1,129,055 | 62,900 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $1,332,864 | 71,200 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $2,132,800 | 155,000 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $2,298,240 | 144,000 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $1,153,637 | 85,900 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $1,771,644 | 112,700 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $2,674,862 | 126,891 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $371,518 | 22,300 | Shares | Sole | 2024-08-09 | |
| 2023-06-30 | $198,114 | 15,900 | Shares | Sole | 2023-08-11 | |
| 2022-09-30 | $438,754 | 67,397 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $720,872 | 93,136 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $113,377 | 12,100 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $530,796 | 35,600 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $2,666,272 | 141,823 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $1,438,327 | 71,523 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $591,348 | 41,123 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $134,508 | 10,023 | Shares | Sole | 2021-02-10 | |
| No filing history on record for this holder in this stock. | ||||||