Cliff Asness’s Mayville Engineering Co MEC Stock Holding History

Cliff Asness’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	$683K	Sell	18,224 -2,159	-11%	-$57.7K	﹤0.01%	3226
2026 Q1	$366K	Sell	20,383 -11,525	-36%	-$222K	﹤0.01%	3306
2025 Q4	$597K	Sell	31,908 -27,632	-46%	-$451K	﹤0.01%	2820
2025 Q3	$819K	Buy	59,540 +34,166	+135%	+$514K	﹤0.01%	2545
2025 Q2	$405K	Sell	25,374 -44,435	-64%	-$635K	﹤0.01%	2722
2025 Q1	$938K	Sell	69,809 -1,834	-3%	-$27.6K	﹤0.01%	2063
2024 Q4	$1.13M	Buy	71,643 +54,632	+321%	+$999K	﹤0.01%	1826
2024 Q3	$359K	Buy	+17,011	New	+$318K	﹤0.01%	2312
2022 Q2	–	Sell	-10,388	Closed	-$97K	–	2252
2022 Q1	$97K	Buy	+10,388	New	+$118K	﹤0.01%	2140

Other funds holding MEC

PCM

Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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 Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Cliff Asness's MEC Position: Q2 2026 in Review

Cliff Asness reduced its Mayville Engineering Co (MEC) stake by 11% in Q2 2026, selling an estimated $57.7K and leaving 18,224 shares worth $683K. The position accounts for ﹤0.01% of the portfolio, ranked #3226.

Cliff Asness first reported a position in MEC in Q1 2022 and has held it in 9 quarters since. The position peaked at $1.13M in Q4 2024. 153 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

Cliff Asness held 18,224 shares of Mayville Engineering Co worth $683K as of Q2 2026.
Cliff Asness sold 2,159 Mayville Engineering Co shares in Q2 2026, an estimated $57.7K.
Mayville Engineering Co made up ﹤0.01% of Cliff Asness's portfolio in Q2 2026, its #3226 holding.
Cliff Asness first reported a position in Mayville Engineering Co in Q1 2022 and has held it in 9 quarters since.
Cliff Asness's Mayville Engineering Co position peaked at $1.13M in Q4 2024.
153 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

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