DF DENT & CO INC

Position in ONTO — Onto Innovation Inc.

CIK 934999 BALTIMORE, MD

Position in ONTO

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$35,538,347

+$16,347,692 QoQ

Shares Held

93,905

+0.3% QoQ

Ownership

0.191%

of shares outstanding

% of Portfolio

1.33%

of 13F equity value

Holder Rank

#95

of 688 holders

Holding Since

Sep 2025

4 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

DF DENT & CO INC holds $37,735,039 across 3 Semiconductor Equipment & Materials names. ONTO ranks #1 (94.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ONTO	Onto Innovation Inc. This page	93,905	$35,538,347
2	KLAC	Kla Corp	6,060	$1,828,362
3	LRCX	Lam Research Corp	850	$368,330

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$35,538,347	93,905	+0.3%	Shares	Sole	2026-08-14
2026-03-31	$19,190,655	93,581	-23.0%	Shares	Sole	2026-05-15
2025-12-31	$19,187,093	121,545	+51.1%	Shares	Sole	2026-02-17
2025-09-30	$10,392,260	80,423	—	Shares	Sole	2025-11-14
No filing history on record for this holder in this stock.