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Needham Investment Management’s Mayville Engineering Co MEC Stock Holding History

Needham Investment Management’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 		$4.12M Buy
110,000
+90,000
+450% +$2.41M 0.12% 125
2026
Q1 		$359K Buy
+20,000
New +$385K 0.02% 162

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

Needham Investment Management's MEC Position: Q2 2026 in Review

Needham Investment Management increased its Mayville Engineering Co (MEC) stake by 450% in Q2 2026, buying an estimated $2.41M and bringing the position to 110,000 shares worth $4.12M. The position accounts for 0.12% of the portfolio, ranked #125.

Needham Investment Management first reported a position in MEC in Q1 2026 and has held it in 2 quarters since. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

  • Needham Investment Management held 110,000 shares of Mayville Engineering Co worth $4.12M as of Q2 2026.
  • Needham Investment Management bought 90,000 Mayville Engineering Co shares in Q2 2026, an estimated $2.41M.
  • Mayville Engineering Co made up 0.12% of Needham Investment Management's portfolio in Q2 2026, its #125 holding.
  • Needham Investment Management first reported a position in Mayville Engineering Co in Q1 2026 and has held it in 2 quarters since.
  • 155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

Based on Needham Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.