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

Rockefeller 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 Q2	$10.3K	Hold	276	–	–	﹤0.01%	4004
2026 Q1	$4.95K	Sell	276 -307	-53%	-$5.91K	﹤0.01%	4249
2025 Q4	$10.9K	Buy	583 +307	+111%	+$5.01K	﹤0.01%	3773
2025 Q3	$3.8K	Buy	+276	New	+$4.15K	﹤0.01%	3953
2023 Q1	–	Sell	-919	Closed	-$11K	–	3118
2022 Q4	$11K	Sell	919 -61	-6%	-$608	﹤0.01%	3042
2022 Q3	$6K	Buy	980 +488	+99%	+$3.51K	﹤0.01%	3287
2022 Q2	$3K	Buy	492 +216	+78%	+$1.83K	﹤0.01%	3664
2022 Q1	$2K	Hold	276	–	–	﹤0.01%	3619
2021 Q4	$4K	Sell	276 -96	-26%	-$1.58K	﹤0.01%	3358
2021 Q3	$6K	Hold	372	–	–	﹤0.01%	3109
2021 Q2	$7K	Hold	372	–	–	﹤0.01%	2926
2021 Q1	$5K	Buy	+372	New	+$5.48K	﹤0.01%	2897

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

Rockefeller Capital Management's MEC Position: Q2 2026 in Review

Rockefeller Capital Management held its Mayville Engineering Co (MEC) position steady in Q2 2026 at 276 shares worth $10.3K. The position accounts for ﹤0.01% of the portfolio, ranked #4004.

Rockefeller Capital Management first reported a position in MEC in Q1 2021 and has held it in 12 quarters since. The position peaked at $11K in Q4 2022. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

Rockefeller Capital Management held 276 shares of Mayville Engineering Co worth $10.3K as of Q2 2026.
Rockefeller Capital Management left its Mayville Engineering Co share count unchanged in Q2 2026.
Mayville Engineering Co made up ﹤0.01% of Rockefeller Capital Management's portfolio in Q2 2026, its #4004 holding.
Rockefeller Capital Management first reported a position in Mayville Engineering Co in Q1 2021 and has held it in 12 quarters since.
Rockefeller Capital Management's Mayville Engineering Co position peaked at $11K in Q4 2022.
155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

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