Round Rock Advisors LLC

Position in KLAC — Kla Corp

CIK 1846991 WILTON, CT

Position in KLAC

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$675,830

+$354,845 QoQ

Shares Held

2,240

+2.8% QoQ

Ownership

0.000%

of shares outstanding

% of Portfolio

0.18%

of 13F equity value

Holder Rank

#1,627

of 2,471 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Technology · as of Jun 30, 2026

Round Rock Advisors LLC holds $3,559,079 across 4 Semiconductor Equipment & Materials names. KLAC ranks #3 (19.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LRCX	Lam Research Corp	3,213	$1,392,289
2	AMAT	Applied Materials Inc /De	1,333	$963,759
3	KLAC	Kla Corp This page	2,240	$675,830
4	ASML	Asml Holding NV	265	$527,201

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$675,830	2,240	+927.5%	Shares	Sole	2026-08-12
2026-03-31	$320,985	218	—	Shares	Sole	2026-05-15
No filing history on record for this holder in this stock.