AQR Capital Management’s Mayville Engineering Co MEC Stock Holding History

AQR Capital 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 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

Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

PCM

Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

EVR Research Richmond, Virginia $250M AUM 41.5% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

William Blair & Company Chicago, Illinois $34.9B AUM 18.88% 1-Year Est. Return

First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return

GIM

Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return

AQR Capital Management's MEC Position: Q1 2026 in Review

AQR Capital Management reduced its Mayville Engineering Co (MEC) stake by 36% in Q1 2026, selling an estimated $222K and leaving 20,383 shares worth $366K. The position accounts for ﹤0.01% of the portfolio, ranked #3306.

AQR Capital Management first reported a position in MEC in Q1 2022 and has held it in 8 quarters since. The position peaked at $1.13M in Q4 2024. 124 funds tracked by Wall St. Rank hold MEC as of Q1 2026.

AQR Capital Management held 20,383 shares of Mayville Engineering Co worth $366K as of Q1 2026.
AQR Capital Management sold 11,525 Mayville Engineering Co shares in Q1 2026, an estimated $222K.
Mayville Engineering Co made up ﹤0.01% of AQR Capital Management's portfolio in Q1 2026, its #3306 holding.
AQR Capital Management first reported a position in Mayville Engineering Co in Q1 2022 and has held it in 8 quarters since.
AQR Capital Management's Mayville Engineering Co position peaked at $1.13M in Q4 2024.
124 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q1 2026.

Based on AQR Capital Management's 13F filing for Q1 2026, filed 15 May 2026.