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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
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

PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
SPPAM
Summit Partners Public Asset Management Boston, Massachusetts $5.69B AUM 259.25% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Harbor Capital Advisors's MEC Position: Q2 2026 in Review

Harbor Capital Advisors increased its Mayville Engineering Co (MEC) stake by 268% in Q2 2026, buying an estimated $557K and bringing the position to 28,625 shares worth $1.07M. The position accounts for 0.07% of the portfolio, ranked #344.

Harbor Capital Advisors first reported a position in MEC in Q2 2024 and has held it in 5 quarters since. The position peaked at $1.67M in Q3 2024. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

  • Harbor Capital Advisors held 28,625 shares of Mayville Engineering Co worth $1.07M as of Q2 2026.
  • Harbor Capital Advisors bought 20,840 Mayville Engineering Co shares in Q2 2026, an estimated $557K.
  • Mayville Engineering Co made up 0.07% of Harbor Capital Advisors's portfolio in Q2 2026, its #344 holding.
  • Harbor Capital Advisors first reported a position in Mayville Engineering Co in Q2 2024 and has held it in 5 quarters since.
  • Harbor Capital Advisors's Mayville Engineering Co position peaked at $1.67M in Q3 2024.
  • 155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

Based on Harbor Capital Advisors's 13F filing for Q2 2026, filed 7 Aug 2026.