Mayville Engineering Company, Inc. (MEC) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of MEC are Robert D Kamphuis (Chairman, Pres. Ceo, 420.54K shares), Todd M Butz (Chief Financial Officer, 173.74K shares), Jagadeesh A Reddy (President Ceo, 146.28K 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
Jagadeesh A Reddy President Ceo 180,183 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
Randall P Stille Chief Operating Officer 45,056 0 02 Mar, 2023
Rachele Marie Lehr Chief Financial Officer 30,529 0 17 Mar, 2026
Jay O. Rothman 24,721 0 17 Apr, 2024
Robert L Mccormick 18,747 0 18 Apr, 2025
Sean P Leuba Svp, Corp. Development Gc 18,473 0 17 Mar, 2026
Craig D Nichols Svp, Operations Supply Chain 4,146 0 17 Mar, 2026
Craig D Nichols Svp, Operations Supply Chain 0 1,134 07 Nov, 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
15 Mar, 2026 Jagadeesh A Reddy Common Stock A 36,317 $0.00 182,602 D M
15 Mar, 2026 Sean P Leuba Common Stock A 7,263 $0.00 19,104 D M
15 Mar, 2026 Rachele Marie Lehr Common Stock A 8,560 $0.00 29,321 D M
15 Mar, 2026 Ryan F Raber Common Stock A 17,650 $0.00 108,668 D M
15 Mar, 2026 Craig D Nichols Common Stock A 5,808 $0.00 5,808 D M
15 Mar, 2026 Rachele Marie Lehr Common Stock A 5,808 $0.00 35,129 D M
15 Mar, 2026 Sean P Leuba Common Stock A 4,646 $0.00 23,750 D M
15 Mar, 2026 Craig D Nichols Common Stock D 1,662 $16.67 4,146 D F
15 Mar, 2026 Ryan F Raber Common Stock A 12,452 $0.00 121,120 D M
15 Mar, 2026 Jagadeesh A Reddy Common Stock A 27,643 $0.00 210,245 D M
15 Mar, 2026 Sean P Leuba Common Stock D 5,277 $16.67 18,473 D F
15 Mar, 2026 Jagadeesh A Reddy Common Stock D 30,062 $16.67 180,183 D F
15 Mar, 2026 Ryan F Raber Common Stock D 14,150 $16.67 106,970 D F
15 Mar, 2026 Rachele Marie Lehr Common Stock D 4,600 $16.67 30,529 D F
15 Mar, 2026 Rachele Marie Lehr Restricted Stock Units D 8,560 $0.00 8,560 D M
15 Mar, 2026 Sean P Leuba Restricted Stock Units D 7,263 $0.00 7,263 D M
15 Mar, 2026 Craig D Nichols Restricted Stock Units D 5,808 $0.00 11,614 D M
15 Mar, 2026 Sean P Leuba Restricted Stock Units D 4,646 $0.00 9,292 D M
15 Mar, 2026 Ryan F Raber Restricted Stock Units D 17,650 $0.00 17,650 D M
15 Mar, 2026 Craig D Nichols Restricted Stock Units A 14,998 $0.00 14,998 D A