JP Morgan Chase
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JP Morgan Chase’s Mayville Engineering Co MEC Stock Holding History

JP Morgan Chase’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 		$13M Buy
347,224
+341,743
+6,235% +$9.13M ﹤0.01% 2579
2026
Q1 		$95.8K Sell
5,481
-72
-1% -$1.39K ﹤0.01% 5857
2025
Q4 		$104K Sell
5,553
-936
-14% -$15.3K ﹤0.01% 5868
2025
Q3 		$89.3K Sell
6,489
-1,447
-18% -$21.8K ﹤0.01% 5962
2025
Q2 		$127K Buy
7,936
+1,359
+21% +$19.4K ﹤0.01% 5496
2025
Q1 		$88.3K Buy
6,577
+427
+7% +$6.42K ﹤0.01% 5633
2024
Q4 		$96.7K Buy
6,150
+461
+8% +$8.43K ﹤0.01% 5771
2024
Q3 		$120K Sell
5,689
-714
-11% -$13.4K ﹤0.01% 5625
2024
Q2 		$107K Buy
6,403
+1,596
+33% +$24.1K ﹤0.01% 5488
2024
Q1 		$68.9K Sell
4,807
-3,405
-41% -$44.4K ﹤0.01% 5817
2023
Q4 		$118K Buy
8,212
+1,011
+14% +$12.5K ﹤0.01% 5652
2023
Q3 		$79K Sell
7,201
-1,643
-19% -$19K ﹤0.01% 5621
2023
Q2 		$110K Sell
8,844
-39,163
-82% -$495K ﹤0.01% 5423
2023
Q1 		$717K Buy
48,007
+47,554
+10,498% +$693K ﹤0.01% 4269
2022
Q4 		$6K Buy
453
+413
+1,033% +$4.12K ﹤0.01% 6130
2022
Q3 		$0 Hold
40
– – ﹤0.01% 6693
2022
Q2 		$0 Sell
40
-4,201
-99% -$35.6K ﹤0.01% 6712
2022
Q1 		$39K Buy
4,241
+762
+22% +$8.65K ﹤0.01% 5881
2021
Q4 		$52K Sell
3,479
-3,712
-52% -$61.2K ﹤0.01% 5929
2021
Q3 		$136K Sell
7,191
-5,319
-43% -$91.1K ﹤0.01% 5421
2021
Q2 		$252K Sell
12,510
-10,531
-46% -$186K ﹤0.01% 5113
2021
Q1 		$332K Sell
23,041
-351
-2% -$5.17K ﹤0.01% 4912
2020
Q4 		$314K Buy
23,392
+17,143
+274% +$190K ﹤0.01% 4629
2020
Q3 		$57K Sell
6,249
-560
-8% -$4.73K ﹤0.01% 4907
2020
Q2 		$53K Sell
6,809
-3,858
-36% -$23.7K ﹤0.01% 4814
2020
Q1 		$65K Buy
10,667
+2,460
+30% +$18.5K ﹤0.01% 4652
2019
Q4 		$77K Buy
8,207
+6,140
+297% +$63.7K ﹤0.01% 4985
2019
Q3 		$27K Buy
2,067
+335
+19% +$4.48K ﹤0.01% 5341
2019
Q2 		$25K Buy
+1,732
New +$26.7K ﹤0.01% 5399

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

JP Morgan Chase's MEC Position: Q2 2026 in Review

JP Morgan Chase increased its Mayville Engineering Co (MEC) stake by 6,235% in Q2 2026, buying an estimated $9.13M and bringing the position to 347,224 shares worth $13M. The position accounts for ﹤0.01% of the portfolio, ranked #2579.

JP Morgan Chase first reported a position in MEC in Q2 2019 and has held it in 29 quarters since. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

  • JP Morgan Chase held 347,224 shares of Mayville Engineering Co worth $13M as of Q2 2026.
  • JP Morgan Chase bought 341,743 Mayville Engineering Co shares in Q2 2026, an estimated $9.13M.
  • Mayville Engineering Co made up ﹤0.01% of JP Morgan Chase's portfolio in Q2 2026, its #2579 holding.
  • JP Morgan Chase first reported a position in Mayville Engineering Co in Q2 2019 and has held it in 29 quarters since.
  • 155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

Based on JP Morgan Chase's 13F filing for Q2 2026, filed 12 Aug 2026.