What smart money is saying about Mayville Engineering Company
5 funds in our archive have pitched Mayville Engineering Company, most recently Rewey AM Smid Value Strategy in September 2026.
Mayville Engineering Company, Inc., together with its subsidiaries, engages in the production, design, prototyping and tooling, fabrication, aluminum extrusion, coating, and assembling of aftermarket components in the United States. It supplies engineered components to original equipment manufacturers. The company serves heavy and medium duty commercial vehicles, construction and access equipment, powersports, data center and critical power, agriculture, military, and other end markets. Mayville Engineering Company, Inc. was founded in 1945 and is headquartered in Milwaukee, Wisconsin.
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Fund signal · last 12 months
7 lettersFunds are split between buying and selling
Moves described in fund letters in our archive. A sentence published word for word by several funds of one house in the same quarter counts once.
Position history
Between Q3 2025 and Q3 2026, 7 fund letters reported a position in Mayville Engineering Company, with 2 buys (opened or added) and 3 sells (trimmed or exited).
| Quarter | Letters | Bought | Sold | Theses |
|---|---|---|---|---|
| Q3 2026 | 4 | 2 | 1 | 3 |
| Q2 2026 | 2 | 0 | 1 | 1 |
| Q4 2025 | 1 | 0 | 1 | 0 |
| Q3 2025 | 0 | 0 | 0 | 1 |
Bought and Sold count moves: the same sentence published by several funds of one house in a quarter counts once.
Fund activity · 7 positions · 5 moves
- September 2026
“• Mayville Engineering, a leading US contract metal fabricator, was added to the portfolio as we see an attractive opportunity for earnings growth.”
Mayville Engineering Company - New positionRewey AM Smid Value StrategySeptember 2026
“Mayville Engineering Company (MEC) We reestablished a position in Mayville Engineering company in the quarter.”
Mayville Engineering Company - September 2026
“Mayville Engineering (Industrials, Special Situation) Mayville declined meaningfully, reversing much of its second-quarter gain, although it remains a positive contributor year to date. Second-quarter sales grew 23% and the company won approximately $40 million of new Datacenter and Critical Power projects. Project launch costs, capital spending and negative free cash flow have delayed earnings conversion from that growth. We are focused on evidence that the ramp can produce stronger margins and cash generation.”
Mayville Engineering Company - September 2026
“We exited Mayville Engineering (MEC) following its second-quarter report.”
Mayville Engineering Company - June 2026
“Mayville Engineering (Industrials, Special Situation) Mayville Engineering contributed as investors responded to tangible evidence of the operational inflection that had been central to the investment thesis.”
Mayville Engineering Company - June 2026
“Mayville Engineering Company (MEC) Mayville Engineering, the Wisconsin-based metal fabrication and manufacturing solutions provider, was the portfolio's largest contributor as shares gained approximately 109% during the quarter. The company's trucking, agriculture, and military end markets began to inflect at the same time as investors rediscovered domestic manufacturing capacity as a scarce asset and management moved into data center rack fabrication. With the stock more than doubling, we trimmed the position in stages during the quarter, consistent with our sizing discipline in names that have run sharply.”
Mayville Engineering Company - TrimmedRewey Asset ManagementDecember 2025
“As a result, we modestly trimmed our position.”
Mayville Engineering Company
Fund coverage · 5 theses
- Rewey AM Smid Value StrategySeptember 2026
Mayville Engineering Company offers a compelling valuation opportunity as its balance sheet improves, demand reaccelerates across multiple end markets, and cash flow and margins are expected to recover.
Read the full thesis - Diamond Hill Small Cap FundSeptember 2026
Mayville Engineering is a contract metal fabricator with earnings growth potential from recovering core markets and rising data center demand.
Read the full thesis - Granahan Investment Management Microcap GrowthSeptember 2026
Mayville Engineering is winning new datacenter and critical power projects, with the thesis centered on converting sales growth into stronger margins and cash flow.
Read the full thesis Mayville Engineering is benefiting from an operational inflection and a strategic acquisition that expands exposure to data-center infrastructure and improves normalized earnings power.
Read the full thesis- Royce InvestSeptember 2025
Mayville Engineering is transitioning from cyclical heavy vehicle manufacturing to higher-margin data center infrastructure, supported by lean operations and a focus on domestic sourcing, aiming for significant sales growth in 2026.
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