SummerHaven Investment Management, LLC

Position in MEC — Mayville Engineering Company, Inc.

CIK 1846436 STAMFORD, CT

Position in MEC

as of Mar 31, 2026 · filed Apr 24, 2026 Compact

Position Value

$813,583

-$154,709 QoQ

Shares Held

45,325

-12.4% QoQ

Ownership

0.221%

of shares outstanding

% of Portfolio

0.50%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 0.ToString("F0")% None 100.ToString("F0")%

Industrials · as of Mar 31, 2026

SummerHaven Investment Management, LLC holds $2,371,035 across 3 Metal Fabrication names. MEC ranks #2 (34.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CMC	COMMERCIAL METALS Co	14,297	$878,264
2	MEC	Mayville Engineering Company, Inc. This page	45,325	$813,583
3	RYZ	Ryerson Holding Corp	30,213	$679,188

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$813,583	45,325	-12.4%	Shares	Sole	2026-04-24
2025-12-31	$968,292	51,725	0.0%	Shares	Sole	2026-02-03
2025-09-30	$711,736	51,725	—	Shares	Sole	2025-11-03
No filing history on record for this holder in this stock.