GAMMA Investing LLC

Position in MLM — Martin Marietta Materials Inc

CIK 2010235 FOSTER CITY, CA

Position in MLM

as of Jun 30, 2026 · filed Jul 7, 2026 Compact

Position Value

$1,681,657

+$186,410 QoQ

Shares Held

2,916

+14.8% QoQ

Ownership

0.005%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

#22

of 78 holders

Holding Since

Dec 2023

11 quarters on record

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

Basic Materials · as of Jun 30, 2026

GAMMA Investing LLC holds $3,998,832 across 14 Building Materials names. MLM ranks #1 (42.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MLM	Martin Marietta Materials Inc This page	2,916	$1,681,657
2	VMC	Vulcan Materials CO	3,611	$1,065,281
3	CRH	Crh Public Ltd Co	5,738	$613,966
4	EXP	Eagle Materials Inc	1,015	$228,375
5	JHX	James Hardie Industries plc	3,597	$94,169
6	CX	Cemex Sab De CV	6,378	$76,536
7	KNF	Knife River Corp	777	$64,996
8	AMRZ	Amrize Ltd	955	$50,901

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,681,657	2,916	+14.8%	Shares	Defined	2026-07-07
2026-03-31	$1,495,247	2,540	+7.8%	Shares	Defined	2026-04-06
2025-12-31	$1,467,609	2,357	+19.4%	Shares	Defined	2026-01-05
2025-09-30	$1,244,172	1,974	+14.5%	Shares	Defined	2025-10-02
2025-06-30	$946,407	1,724	+18.2%	Shares	Defined	2025-07-14
2025-03-31	$697,591	1,459	+22.7%	Shares	Defined	2025-04-15
2024-12-31	$614,118	1,189	+2.2%	Shares	Defined	2025-01-03
2024-09-30	$625,984	1,163	+19.5%	Shares	Defined	2024-10-07
2024-06-30	$527,171	973	+18.9%	Shares	Defined	2024-07-02
2024-03-31	$502,202	818	+22.3%	Shares	Defined	2024-04-05
2023-12-31	$333,770	669	—	Shares	Defined	2024-02-01
No filing history on record for this holder in this stock.