Driehaus Capital Management LLC

Position in MKTX — Marketaxess Holdings Inc

CIK 938206 Chicago, IL

Position in MKTX

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

Position Value

$39,472,454

+$29,518,060 QoQ

Shares Held

239,256

+515.8% QoQ

Ownership

0.673%

of shares outstanding

% of Portfolio

0.29%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

7 quarters on record

Voting authority Sole 83.46582739826796.ToString("F0")% Shared 0.ToString("F0")% None 16.534172601732035.ToString("F0")%

Financial Services · as of Mar 31, 2026

Driehaus Capital Management LLC holds $221,744,468 across 5 Capital Markets names. MKTX ranks #3 (17.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WULF	Terawulf Inc.	6,063,000	$87,489,090
2	SNEX	StoneX Group Inc.	861,530	$69,482,394
3	MKTX	Marketaxess Holdings Inc This page	239,256	$39,472,454
4	MIAX	Miami International Holdings, Inc.	396,698	$15,439,486
5	HUT	Hut 8 Corp.	210,212	$9,861,044

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$39,472,454	239,256	+515.8%	Shares	Sole	2026-05-15
2024-09-30	$9,954,394	38,854	-23.6%	Shares	Sole	2024-11-14
2023-03-31	$19,903,748	50,867	+3777.1%	Shares	Sole	2023-05-15
2020-12-31	$748,574	1,312	-1.2%	Shares	Sole	2021-02-16
2020-09-30	$639,551	1,328	-10.7%	Shares	Sole	2020-11-16
2020-06-30	$744,868	1,487	+129.5%	Shares	Sole	2020-08-14
2020-03-31	$215,505	648	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.