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 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

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

JB Capital Partners's MEC Position: Q1 2026 in Review

JB Capital Partners held its Mayville Engineering Co (MEC) position steady in Q1 2026 at 250,512 shares worth $4.5M. The position accounts for 0.77% of the portfolio, ranked #20.

JB Capital Partners first reported a position in MEC in Q3 2023 and has held it in 11 quarters since. The position peaked at $5.09M in Q3 2024. 124 funds tracked by Wall St. Rank hold MEC as of Q1 2026.

JB Capital Partners held 250,512 shares of Mayville Engineering Co worth $4.5M as of Q1 2026.
JB Capital Partners left its Mayville Engineering Co share count unchanged in Q1 2026.
Mayville Engineering Co made up 0.77% of JB Capital Partners's portfolio in Q1 2026, its #20 holding.
JB Capital Partners first reported a position in Mayville Engineering Co in Q3 2023 and has held it in 11 quarters since.
JB Capital Partners's Mayville Engineering Co position peaked at $5.09M in Q3 2024.
124 funds tracked by Wall St. Rank held Mayville Engineering Co as of Q1 2026.

Based on JB Capital Partners's 13F filing for Q1 2026, filed 14 May 2026.