RhumbLine Advisers’s Mayville Engineering Co MEC Stock Holding History

RhumbLine Advisers’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	$327K	Buy	18,200 +168	+0.9%	+$3.23K	﹤0.01%	2876
2025 Q4	$338K	Sell	18,032 -2,021	-10%	-$33K	﹤0.01%	2899
2025 Q3	$276K	Buy	20,053 +84	+0.4%	+$1.26K	﹤0.01%	3052
2025 Q2	$319K	Buy	19,969 +1,526	+8%	+$21.8K	﹤0.01%	2952
2025 Q1	$248K	Sell	18,443 -742	-4%	-$11.2K	﹤0.01%	3000
2024 Q4	$302K	Buy	19,185 +613	+3%	+$11.2K	﹤0.01%	2982
2024 Q3	$391K	Sell	18,572 -709	-4%	-$13.3K	﹤0.01%	2872
2024 Q2	$321K	Buy	19,281 +6,348	+49%	+$96K	﹤0.01%	2957
2024 Q1	$185K	Sell	12,933 -164	-1%	-$2.14K	﹤0.01%	3220
2023 Q4	$189K	Sell	13,097 -171	-1%	-$2.12K	﹤0.01%	3218
2023 Q3	$146K	Buy	13,268 +518	+4%	+$5.98K	﹤0.01%	3321
2023 Q2	$159K	Buy	+12,750	New	+$161K	﹤0.01%	3357

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

RhumbLine Advisers's MEC Position: Q1 2026 in Review

RhumbLine Advisers increased its Mayville Engineering Co (MEC) stake by 0.93% in Q1 2026, buying an estimated $3.23K and bringing the position to 18,200 shares worth $327K. The position accounts for ﹤0.01% of the portfolio, ranked #2876.

RhumbLine Advisers first reported a position in MEC in Q2 2023 and has held it in 12 quarters since. The position peaked at $391K in Q3 2024. 124 funds tracked by Wall St. Rank hold MEC as of Q1 2026.

RhumbLine Advisers held 18,200 shares of Mayville Engineering Co worth $327K as of Q1 2026.
RhumbLine Advisers bought 168 Mayville Engineering Co shares in Q1 2026, an estimated $3.23K.
Mayville Engineering Co made up ﹤0.01% of RhumbLine Advisers's portfolio in Q1 2026, its #2876 holding.
RhumbLine Advisers first reported a position in Mayville Engineering Co in Q2 2023 and has held it in 12 quarters since.
RhumbLine Advisers's Mayville Engineering Co position peaked at $391K in Q3 2024.
124 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q1 2026.

Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.