Morgan Stanley
MEC icon

Morgan Stanley’s Mayville Engineering Co MEC Stock Holding History

Morgan Stanley’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 		$3.75M Buy
100,159
+76,325
+320% +$2.04M ﹤0.01% 4431
2026
Q1 		$428K Sell
23,834
-58,556
-71% -$1.13M ﹤0.01% 5554
2025
Q4 		$1.54M Buy
82,390
+47,389
+135% +$773K ﹤0.01% 4961
2025
Q3 		$482K Sell
35,001
-27,301
-44% -$411K ﹤0.01% 5509
2025
Q2 		$994K Buy
62,302
+33,451
+116% +$478K ﹤0.01% 5101
2025
Q1 		$387K Sell
28,851
-16,015
-36% -$241K ﹤0.01% 5443
2024
Q4 		$705K Sell
44,866
-12,584
-22% -$230K ﹤0.01% 5270
2024
Q3 		$1.21M Buy
57,450
+27,059
+89% +$506K ﹤0.01% 4934
2024
Q2 		$506K Buy
30,391
+9,273
+44% +$140K ﹤0.01% 5287
2024
Q1 		$303K Sell
21,118
-6,540
-24% -$85.3K ﹤0.01% 5555
2023
Q4 		$399K Buy
27,658
+14,123
+104% +$175K ﹤0.01% 5408
2023
Q3 		$148K Buy
13,535
+377
+3% +$4.35K ﹤0.01% 5708
2023
Q2 		$164K Sell
13,158
-140,867
-91% -$1.78M ﹤0.01% 5729
2023
Q1 		$2.3M Buy
154,025
+124,600
+423% +$1.82M ﹤0.01% 4371
2022
Q4 		$373K Sell
29,425
-6,154
-17% -$61.4K ﹤0.01% 5384
2022
Q3 		$232K Buy
35,579
+9,466
+36% +$68.1K ﹤0.01% 5658
2022
Q2 		$203K Buy
26,113
+11,395
+77% +$96.7K ﹤0.01% 5886
2022
Q1 		$139K Sell
14,718
-9,077
-38% -$103K ﹤0.01% 6120
2021
Q4 		$354K Buy
23,795
+7,985
+51% +$132K ﹤0.01% 5755
2021
Q3 		$298K Buy
15,810
+6,361
+67% +$109K ﹤0.01% 5790
2021
Q2 		$190K Sell
9,449
-4,228
-31% -$74.6K ﹤0.01% 6044
2021
Q1 		$197K Sell
13,677
-6,970
-34% -$103K ﹤0.01% 5668
2020
Q4 		$277K Buy
20,647
+7,921
+62% +$87.6K ﹤0.01% 5420
2020
Q3 		$118K Sell
12,726
-1,655
-12% -$14K ﹤0.01% 5352
2020
Q2 		$114K Buy
14,381
+4,054
+39% +$24.9K ﹤0.01% 5341
2020
Q1 		$64K Sell
10,327
-20,478
-66% -$154K ﹤0.01% 5365
2019
Q4 		$288K Sell
30,805
-48,932
-61% -$508K ﹤0.01% 5244
2019
Q3 		$1.05M Buy
79,737
+19,336
+32% +$258K ﹤0.01% 4271
2019
Q2 		$834K Buy
+60,401
New +$930K ﹤0.01% 4317

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

Morgan Stanley's MEC Position: Q2 2026 in Review

Morgan Stanley increased its Mayville Engineering Co (MEC) stake by 320% in Q2 2026, buying an estimated $2.04M and bringing the position to 100,159 shares worth $3.75M. The position accounts for ﹤0.01% of the portfolio, ranked #4431.

Morgan Stanley 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.

  • Morgan Stanley held 100,159 shares of Mayville Engineering Co worth $3.75M as of Q2 2026.
  • Morgan Stanley bought 76,325 Mayville Engineering Co shares in Q2 2026, an estimated $2.04M.
  • Mayville Engineering Co made up ﹤0.01% of Morgan Stanley's portfolio in Q2 2026, its #4431 holding.
  • Morgan Stanley 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 Morgan Stanley's 13F filing for Q2 2026, filed 13 Aug 2026.