MEC Mayville Engineering

• None no insider bought on the open market
• $1.6M sold by 4 insiders outside a trading plan
• $1.7M sold by 1 insider under 10b5-1 plans

1. Insider
   Trade
   Value
   Traded, filed
2. Sean P Leuba SVP, GC & Secretary
   Sale
   $327K 12,855 shares at $25.44 66% of stake
   Traded Aug 6 Filed Aug 7
   ↗
3. Jagadeesh A Reddy CEO
   Planned sale
   $550K 15,688 shares at $35.05 11% of stake
   Traded Jun 11 Filed Jun 12
   ↗
4. Jagadeesh A Reddy CEO
   Planned sale
   $46K 1,300 shares at $35.01 0.9% of stake
   Traded Jun 8 Filed Jun 10
   ↗
5. Jagadeesh A Reddy CEO
   Planned sale
   $519K 17,294 shares at $30.00 11% of stake
   Traded Jun 1 Filed Jun 3
   ↗
6. Ryan F Raber EVP - Strategy, Sales & Mktg
   Sale
   $520K 20,000 shares at $26.00 19% of stake
   Traded May 26 Filed May 27
   ↗
7. Craig D Nichols SVP, Operations & Supply Chain
   Sale
   $93K 4,000 shares at $23.24 97% of stake
   Traded May 21 Filed May 26
   ↗
8. Jagadeesh A Reddy CEO
   Planned sale
   $565K 21,796 shares at $25.93 12% of stake
   Traded May 7 Filed May 11
   ↗
9. Sean P Leuba GC & Secretary
   Sale
   $176K 9,198 shares at $19.15
   Traded Mar 5 Filed Mar 9
   ↗
10. Steven L Fisher Director
    Sale
    $191K 10,000 shares at $19.11 25% of stake
    Traded Dec 11, 2025 Filed Dec 15, 2025
    ↗
11. Ryan F Raber EVP - Strategy, Sales & Mktg
    Sale
    $250K 15,000 shares at $16.68 14% of stake
    Traded Nov 25, 2025 Filed Nov 26, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 16 option exercises, 5 share withholdings for taxes, 1 stock grant, and 1 gift.