Mayville Engineering Company, Inc. (MEC) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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