JB Capital Partners’s Mayville Engineering Co MEC Stock Holding History

JB Capital Partners’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	$9.38M	Hold	250,512	–	–	1.45%	15
2026 Q1	$4.5M	Hold	250,512	–	–	0.77%	20
2025 Q4	$4.69M	Hold	250,512	–	–	0.81%	18
2025 Q3	$4.46M	Hold	250,512	–	–	0.76%	19
2025 Q2	$4M	Hold	250,512	–	–	0.74%	20
2025 Q1	$3.36M	Hold	250,512	–	–	0.71%	21
2024 Q4	$3.94M	Buy	250,512 +8,906	+4%	+$163K	0.75%	23
2024 Q3	$5.09M	Hold	241,606	–	–	0.98%	18
2024 Q2	$4.03M	Buy	241,606 +41,603	+21%	+$629K	0.89%	18
2024 Q1	$2.87M	Buy	200,003 +30,000	+18%	+$391K	0.54%	26
2023 Q4	$2.45M	Buy	170,003 +21,525	+14%	+$267K	0.49%	31
2023 Q3	$1.63M	Buy	+148,478	New	+$1.71M	0.4%	39

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

JB Capital Partners's MEC Position: Q2 2026 in Review

JB Capital Partners held its Mayville Engineering Co (MEC) position steady in Q2 2026 at 250,512 shares worth $9.38M. The position accounts for 1.45% of the portfolio, ranked #15.

JB Capital Partners first reported a position in MEC in Q3 2023 and has held it in 12 quarters since. 155 funds tracked by Wall St. Rank hold MEC as of Q2 2026.

JB Capital Partners held 250,512 shares of Mayville Engineering Co worth $9.38M as of Q2 2026.
JB Capital Partners left its Mayville Engineering Co share count unchanged in Q2 2026.
Mayville Engineering Co made up 1.45% of JB Capital Partners's portfolio in Q2 2026, its #15 holding.
JB Capital Partners first reported a position in Mayville Engineering Co in Q3 2023 and has held it in 12 quarters since.
155 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q2 2026.

Based on JB Capital Partners's 13F filing for Q2 2026, filed 11 Aug 2026.