InsiderTrades

Form 4 for MEC Mayville Engineering Company, Inc.

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0000897069-26-000717 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DM 2026-03-17 2026-03-15 MEC Reddy Jagadeesh A Pres, CEO, Dir M - OptEx $0.00 +64.0K 210.2K +44% $0
D 2026-03-17 2026-03-15 MEC Reddy Jagadeesh A Pres, CEO, Dir F - Tax $16.67 -30.1K 180.2K -14% -$501.1K
DM 2026-03-17 2026-03-15 MEC Reddy Jagadeesh A Pres, CEO, Dir M - OptEx $0.00 -64.0K 55.3K -54% $0
D 2026-03-17 2026-03-15 MEC Reddy Jagadeesh A Pres, CEO, Dir A - Grant $0.00 +75.0K 75.0K New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-15 M A 36,317 $0.00 182,602 D — —
2 Common Common Stock 2026-03-15 F D 30,062 $16.67 180,183 D — —
3 Common Common Stock 2026-03-15 M A 27,643 $0.00 210,245 D — —
4 Derivative Restricted Stock Units 2026-03-15 M D 36,317 $0.00 36,316 D $0.00 · — to — 36,317 Common Shares (F2) The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
5 Derivative Restricted Stock Units 2026-03-15 M D 27,643 $0.00 55,284 D $0.00 · — to — 27,643 Common Shares (F3) The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.
6 Derivative Restricted Stock Units 2026-03-15 A A 74,986 $0.00 74,986 D $0.00 · — to — 74,986 Common Shares (F4) The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.