Driehaus Capital Management LLC

Position in ESE — Esco Technologies Inc

CIK 938206 Chicago, IL

Position in ESE

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

Position Value

$100,809,769

+$48,557,954 QoQ

Shares Held

287,995

+55.1% QoQ

Ownership

1.11%

of shares outstanding

% of Portfolio

0.59%

of 13F equity value

Holder Rank

#26

of 447 holders

Holding Since

Mar 2020

7 quarters on record

Voting authority Sole 82% Shared 0% None 18%

Technology · as of Jun 30, 2026

Driehaus Capital Management LLC holds $244,471,611 across 5 Scientific & Technical Instruments names. ESE ranks #2 (41.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COHR	Coherent Corp.	259,497	$102,363,781
2	ESE	Esco Technologies Inc This page	287,995	$100,809,769
3	TDY	Teledyne Technologies Inc	59,258	$39,519,160
4	CGNX	Cognex Corp	14,166	$1,025,901
5	KEYS	Keysight Technologies, Inc.	2,151	$753,000

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$100,809,769	287,995	+55.1%	Shares	Sole	2026-08-14
2026-03-31	$52,251,815	185,705	-17.6%	Shares	Sole	2026-05-15
2025-12-31	$44,048,916	225,441	-3.8%	Shares	Sole	2026-02-17
2025-09-30	$49,461,384	234,292	-17.6%	Shares	Sole	2025-11-14
2025-06-30	$54,548,449	284,299	+33.9%	Shares	Sole	2025-08-14
2025-03-31	$33,783,721	212,316	+4826.1%	Shares	Sole	2025-05-15
2020-03-31	$327,172	4,310	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.