Mayville Engineering Company's top three insider shareholders as of April 28, 2026 are Robert D Kamphuis (Chairman, Pres. Ceo, 420.54K shares), Jagadeesh A Reddy (President Ceo, 180.18K shares), Jagadeesh A Reddy (President Ceo, 180.18K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert D Kamphuis | Chairman, Pres. Ceo | 420,536 | 0 | 02 Mar, 2022 |
| Jagadeesh A Reddy | President Ceo | 180,183 | 0 | 17 Mar, 2026 |
| Jagadeesh A Reddy | President Ceo | 180,183 | 0 | 17 Mar, 2026 |
| Todd M Butz | Chief Financial Officer | 173,743 | 0 | 18 Mar, 2025 |
| Timothy L Christen | - | 153,804 | 0 | 23 Apr, 2026 |
| Ryan F Raber | Evp Strategy, Sales Mktg | 106,970 | 0 | 17 Mar, 2026 |
| Ryan F Raber | Evp Strategy, Sales Mktg | 106,970 | 0 | 17 Mar, 2026 |
| Patrick D Michels | - | 81,135 | 0 | 19 Apr, 2023 |
| Patrick D Michels | - | 81,135 | 0 | 19 Apr, 2023 |
| Steven L Fisher | - | 80,713 | 0 | 23 Apr, 2026 |
| Allen J Carlson | - | 74,882 | 0 | 18 Apr, 2025 |
| Randall P Stille | Chief Operating Officer | 45,056 | 0 | 02 Mar, 2023 |
| Randall P Stille | Chief Operating Officer | 45,056 | 0 | 02 Mar, 2023 |
| Todd M Butz | Chief Financial Officer | 0 | 40,998 | 08 Nov, 2024 |
| Rachele Marie Lehr | Chief Financial Officer | 30,529 | 0 | 17 Mar, 2026 |
| Robert L Mccormick | - | 29,078 | 0 | 23 Apr, 2026 |
| Jennifer J. Kent | - | 24,982 | 0 | 18 Apr, 2025 |
| Jay O. Rothman | - | 24,721 | 0 | 17 Apr, 2024 |
| Sean P Leuba | Svp, Corp. Development Gc | 18,473 | 0 | 17 Mar, 2026 |
| Tania Wingfield | - | 5,949 | 0 | 23 Apr, 2026 |
| Craig D Nichols | Svp, Operations Supply Chain | 4,146 | 0 | 17 Mar, 2026 |
| Craig D Nichols | Svp, Operations Supply Chain | 4,146 | 0 | 17 Mar, 2026 |
| Jagadeesh A Reddy | President Ceo | 0 | 1,560 | 19 Mar, 2024 |
| Jagadeesh A Reddy | President Ceo | 0 | 1,560 | 19 Mar, 2024 |
| Craig D Nichols | Svp, Operations Supply Chain | 0 | 1,134 | 07 Nov, 2025 |
| Craig D Nichols | Svp, Operations Supply Chain | 0 | 1,134 | 07 Nov, 2025 |
| Jagadeesh A Reddy | President Ceo | 0 | 380 | 13 Mar, 2025 |
| Jagadeesh A Reddy | President Ceo | 0 | 380 | 13 Mar, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Apr, 2026 | Tania Wingfield | Common Stock | A | 5,949 | $0.00 | 5,949 | D | M |
| 21 Apr, 2026 | Tania Wingfield | Common Stock | A | 5,949 | $0.00 | 5,949 | D | M |
| 21 Apr, 2026 | Steven L Fisher | Common Stock | A | 5,883 | $0.00 | 36,365 | D | M |
| 21 Apr, 2026 | Robert L Mccormick | Common Stock | A | 10,331 | $0.00 | 29,078 | D | M |
| 21 Apr, 2026 | Steven L Fisher | Common Stock | A | 5,883 | $0.00 | 36,365 | D | M |
| 21 Apr, 2026 | Robert L Mccormick | Common Stock | A | 10,331 | $0.00 | 29,078 | D | M |
| 21 Apr, 2026 | Tania Wingfield | Common Stock | A | 5,949 | $0.00 | 5,949 | D | M |
| 21 Apr, 2026 | Christine M. Schyvinck | Director Restricted Stock Units | A | 5,959 | $0.00 | 5,959 | D | A |
| 21 Apr, 2026 | Robert L Mccormick | Common Stock | A | 10,331 | $0.00 | 29,078 | D | M |
| 21 Apr, 2026 | Timothy L Christen | Common Stock | A | 12,397 | $0.00 | 153,804 | D | M |
| 21 Apr, 2026 | Christine M. Schyvinck | Director Restricted Stock Units | A | 5,959 | $0.00 | 5,959 | D | A |
| 21 Apr, 2026 | Tania Wingfield | Common Stock | A | 5,949 | $0.00 | 5,949 | D | M |
| 21 Apr, 2026 | Timothy L Christen | Common Stock | A | 12,397 | $0.00 | 153,804 | D | M |
| 21 Apr, 2026 | Steven L Fisher | Common Stock | A | 5,883 | $0.00 | 36,365 | D | M |
| 21 Apr, 2026 | Steven L Fisher | Common Stock | A | 5,883 | $0.00 | 36,365 | D | M |
| 21 Apr, 2026 | Timothy L Christen | Common Stock | A | 12,397 | $0.00 | 153,804 | D | M |
| 21 Apr, 2026 | Christine M. Schyvinck | Director Restricted Stock Units | A | 5,959 | $0.00 | 5,959 | D | A |
| 21 Apr, 2026 | Timothy L Christen | Common Stock | A | 12,397 | $0.00 | 153,804 | D | M |
| 21 Apr, 2026 | Robert L Mccormick | Common Stock | A | 10,331 | $0.00 | 29,078 | D | M |
| 21 Apr, 2026 | Christine M. Schyvinck | Director Restricted Stock Units | A | 5,959 | $0.00 | 5,959 | D | A |