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SeaBridge Investment Advisors’s Mayville Engineering Co MEC Stock Holding History

SeaBridge Investment Advisors’s Portfolio MEC Stock Details MEC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-16,356
Closed -$261K – 210
2025
Q2 		$261K Buy
16,356
+11
+0.1% +$157 0.05% 180
2025
Q1 		$220K Buy
+16,345
New +$246K 0.05% 187
2024
Q4 		– Sell
-18,664
Closed -$393K – 208
2024
Q3 		$393K Buy
+18,664
New +$349K 0.1% 126

Other funds holding MEC

Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
RA
Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return
TAM
Tocqueville Asset Management New York $6.74B AUM 32.29% 1-Year Est. Return
2L
22NW LP Seattle, Washington $146M AUM 29.83% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $34.9B AUM 18.88% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

SeaBridge Investment Advisors's MEC Position: Q3 2025 in Review

SeaBridge Investment Advisors sold out of Mayville Engineering Co (MEC) in Q3 2025, closing a stake of 16,356 shares — an estimated $261K sold.

SeaBridge Investment Advisors first reported a position in MEC in Q3 2024 and held it in 3 quarters. The position peaked at $393K in Q3 2024. 104 funds tracked by Wall St. Rank hold MEC as of Q3 2025.

  • SeaBridge Investment Advisors reported no remaining Mayville Engineering Co position as of Q3 2025 after selling out during the quarter.
  • SeaBridge Investment Advisors sold 16,356 Mayville Engineering Co shares in Q3 2025, an estimated $261K.
  • SeaBridge Investment Advisors first reported a position in Mayville Engineering Co in Q3 2024 and held it in 3 quarters.
  • SeaBridge Investment Advisors's Mayville Engineering Co position peaked at $393K in Q3 2024.
  • 104 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q3 2025.

Based on SeaBridge Investment Advisors's 13F filing for Q3 2025, filed 22 Oct 2025.