Mayville Engineering Company, Inc.
US ˙ NYSE ˙ US5786051079

SecurityMEC / Mayville Engineering Company, Inc.
InstitutionTocqueville Asset Management L.p.
Latest Disclosed Ownership71,100 shares
Latest Disclosed Value $ 1,276,245
Tocqueville Asset Management L.p. ownership in MEC / Mayville Engineering Company, Inc.

On May 12, 2026 - Tocqueville Asset Management L.p. filed a 13F-HR form disclosing ownership of 71,100 shares of Mayville Engineering Company, Inc. (US:MEC) valued at $1,276,245 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 71,100 shares of Mayville Engineering Company, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,364,075 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F MAYVILLE ENGR COM 578605107 71,100 0 0.00 1,276 -4.06 0.0189
2026-02-12 2025-12-31 13F MAYVILLE ENGR COM 578605107 71,100 -450,000 -86.36 1,331 -81.45 0.0194
2025-11-13 2025-09-30 13F MAYVILLE ENGR COM 578605107 521,100 -50,087 -8.77 7,170 -21.35 0.1042
2025-08-12 2025-06-30 13F MAYVILLE ENGR COM 578605107 571,187 -50,017 -8.05 9,116 9.28 0.1388
2025-05-13 2025-03-31 13F MAYVILLE ENGR COM 578605107 621,204 -8,510 -1.35 8,343 -15.73 0.1362
2025-02-10 2024-12-31 13F MAYVILLE ENGR COM 578605107 629,714 0 0.00 9,899 -25.43 0.1553
2024-11-08 2024-09-30 13F MAYVILLE ENGR COM 578605107 629,714 -13,686 -2.13 13,274 23.84 0.2085
2024-08-12 2024-06-30 13F MAYVILLE ENGR COM 578605107 643,400 0 0.00 10,719 16.27 0.1769
2024-05-09 2024-03-31 13F MAYVILLE ENGR COM 578605107 643,400 3,000 0.47 9,220 -0.16 0.1506
2024-02-12 2023-12-31 13F MAYVILLE ENGR COM 578605107 640,400 -9,310 -1.43 9,235 29.56 0.1674
2023-11-09 2023-09-30 13F MAYVILLE ENGR COM 578605107 649,710 62,500 10.64 7,127 -2.58 0.1354
2023-08-11 2023-06-30 13F MAYVILLE ENGR COM 578605107 587,210 18,460 3.25 7,317 -13.78 0.1310
2023-05-10 2023-03-31 13F MAYVILLE ENGR COM 578605107 568,750 -29,261 -4.89 8,486 12.09 0.1603
2023-02-09 2022-12-31 13F MAYVILLE ENGR COM 578605107 598,011 -79,510 -11.74 7,571 71.62 0.1438
2022-11-10 2022-09-30 13F MAYVILLE ENGR COM 578605107 677,521 16,750 2.53 4,411 -13.75 0.0899
2022-08-12 2022-06-30 13F MAYVILLE ENGR COM 578605107 660,771 42,700 6.91 5,114 -11.69 0.0935
2022-05-16 2022-03-31 13F Mayville Engineering COM 578605107 618,071 114,050 22.63 5,791 -22.94 0.0875
2022-02-14 2021-12-31 13F MAYVILLE ENGR COM 578605107 504,021 -15,200 -2.93 7,515 -23.01 0.1034
2021-11-15 2021-09-30 13F MAYVILLE ENGR COM 578605107 519,221 202,948 64.17 9,761 53.47 0.1446
2021-08-16 2021-06-30 13F MAYVILLE ENGR COM 578605107 316,273 32,820 11.58 6,360 56.04 0.0919
2021-05-17 2021-03-31 13F MAYVILLE ENGINEERING COM 578605107 283,453 -49,590 -14.89 4,076 -8.79 0.0627
2021-02-16 2020-12-31 13F MAYVILLE ENGINEERING COM 578605107 333,043 -59,700 -15.20 4,469 23.83 0.0746
2020-11-16 2020-09-30 13F MAYVILLE ENGINEERING COM 578605107 392,743 -6,700 -1.68 3,609 14.35 0.0690
2020-08-12 2020-06-30 13F MAYVILLE ENGINEERING COM 578605107 399,443 258,009 182.42 3,156 264.01 0.0658
2020-05-15 2020-03-31 13F MAYVILLE ENGINEERING COM 578605107 141,434 47,534 50.62 867 -1.59 0.0215
2020-01-14 2019-12-31 13F Mayville Engineering COM 578605107 93,900 93,900 881 0.0130
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.