Round Rock Advisors LLC

Position in PRIM — Primoris Services Corp

CIK 1846991 WILTON, CT

Position in PRIM

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$248,317

+$34,300 QoQ

Shares Held

1,736

+0.7% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Industrials · as of Mar 31, 2026

Round Rock Advisors LLC holds $2,445,253 across 4 Engineering & Construction names. PRIM ranks #4 (10.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MYRG	Myr Group Inc.	3,483	$983,320
2	CDNL	Cardinal Infrastructure Group Inc.	18,897	$749,360
3	ACA	Arcosa, Inc.	4,374	$464,256
4	PRIM	Primoris Services Corp This page	1,736	$248,317

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$248,317	1,736	+0.7%	Shares	Sole	2026-05-15
2025-12-31	$214,017	1,724	+15.7%	Shares	Sole	2026-04-07
2025-09-30	$204,621	1,490	—	Shares	Sole	2025-11-14
No filing history on record for this holder in this stock.