List of insiders holdings for Mayville Engineering Company Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Kamphuis Robert D Chairman, Pres. & CEO | 2022-03-18 17:10:57 | 1,498,012 79,820 | 1,577,832 | Form 4 |
| 2 | Butz Todd M Chief Financial Officer | 2025-03-18 17:27:55 | 398,153 40,998 | 439,151 | Form 4 |
| 3 | Reddy Jagadeesh A President & CEO | 2026-06-10 16:47:43 | 395,281 2,680 | 397,961 | Form 4 |
| 4 | Raber Ryan F EVP - Strategy, Sales & Mktg | 2026-05-27 16:53:12 | 339,259 26,287 | 365,546 | Form 4 |
| 5 | Stille Randall P Chief Operating Officer | 2023-03-02 18:53:56 | 278,478 2,331 | 280,809 | Form 4 |
| 6 | Christen Timothy L Director | 2026-04-23 16:56:36 | 160,954 0 | 160,954 | Form 4 |
| 7 | Mance Stephen P. Chief Operating Officer | 2020-03-02 15:01:52 | 147,764 0 | 147,764 | Form 4 |
| 8 | Fisher Steven L Director | 2026-04-23 16:58:56 | 129,215 0 | 129,215 | Form 4 |
| 9 | Sanderson Clifford O Vice President - HR | 2020-03-11 16:25:12 | 87,318 14,814 | 102,132 | Form 4 |
| 10 | Rothman Jay O. Director | 2026-04-23 17:05:05 | 96,172 0 | 96,172 | Form 4 |
| 11 | Welak Eric J EVP - Fabrication | 2021-03-02 14:51:51 | 48,979 43,827 | 92,806 | Form 4 |
| 12 | Lehr Rachele Marie Chief Financial Officer | 2026-03-17 17:21:45 | 92,014 0 | 92,014 | Form 4 |
| 13 | Michels Patrick D Director | 2023-04-20 10:28:35 | 81,135 0 | 81,135 | Form 4 |
| 14 | CARLSON ALLEN J Director | 2025-04-18 16:42:35 | 74,882 0 | 74,882 | Form 4 |
| 15 | Leuba Sean P SVP, GC & Secretary | 2026-05-12 17:49:14 | 71,093 0 | 71,093 | Form 4 |
| 16 | Kent Jennifer J. Director | 2026-04-23 17:00:45 | 55,757 0 | 55,757 | Form 4 |
| 17 | McCormick Robert L Director | 2026-04-23 17:02:58 | 35,037 0 | 35,037 | Form 4 |
| 18 | Nichols Craig D SVP, Operations & Supply Chain | 2026-05-26 17:00:29 | 26,758 1,134 | 27,892 | Form 4 |
| 19 | Johnson Craig E Director | 2021-04-22 11:58:18 | 25,415 0 | 25,415 | Form 4 |
| 20 | Wingfield Tania Director | 2026-04-23 17:09:50 | 11,908 0 | 11,908 | Form 4 |
| 21 | St. Peter John A Director | 2020-05-12 18:24:28 | 8,383 0 | 8,383 | Form 4 |
| 22 | Schyvinck Christine M. Chair of the Board | 2026-04-23 17:07:28 | 5,959 0 | 5,959 | Form 4 |