Harbor Capital Advisors
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Harbor Capital Advisors’s Mayville Engineering Co MEC Stock Holding History

Harbor Capital 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
2026
Q3 		– Sell
-28,625
Closed -$1.07M – 1487
2026
Q2 		$1.07M Buy
28,625
+20,840
+268% +$557K 0.07% 344
2026
Q1 		$140K Buy
+7,785
New +$150K 0.01% 615
2025
Q1 		– Sell
-82,413
Closed -$1.3M – 1481
2024
Q4 		$1.3M Buy
82,413
+3,291
+4% +$60.2K 0.06% 404
2024
Q3 		$1.67M Buy
79,122
+43,858
+124% +$821K 0.07% 352
2024
Q2 		$587K Buy
+35,264
New +$533K 0.04% 493

Other funds holding MEC

Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $64.1B AUM 28.9% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $38.6B AUM 22.09% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
CenterBook Partners
CenterBook Partners Greenwich, Connecticut $2.18B AUM 12.5% 1-Year Est. Return
Squarepoint
Squarepoint New York $90.8B AUM 26.98% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Harbor Capital Advisors's MEC Position: Q3 2026 in Review

Harbor Capital Advisors sold out of Mayville Engineering Co (MEC) in Q3 2026, closing a stake of 28,625 shares — an estimated $1.07M sold.

Harbor Capital Advisors first reported a position in MEC in Q2 2024 and held it in 5 quarters. The position peaked at $1.67M in Q3 2024. 55 funds tracked by Wall St. Rank hold MEC as of Q3 2026.

  • Harbor Capital Advisors reported no remaining Mayville Engineering Co position as of Q3 2026 after selling out during the quarter.
  • Harbor Capital Advisors sold 28,625 Mayville Engineering Co shares in Q3 2026, an estimated $1.07M.
  • Harbor Capital Advisors first reported a position in Mayville Engineering Co in Q2 2024 and held it in 5 quarters.
  • Harbor Capital Advisors's Mayville Engineering Co position peaked at $1.67M in Q3 2024.
  • 55 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q3 2026.

Based on Harbor Capital Advisors's 13F filing for Q3 2026, filed 22 Oct 2026.