Who owns ACGLWhat ACGL owns — n/a

Who owns ARCH CAPITAL GROUP LTD.?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.

Institutional ownership of ACGL from SEC Form 13F filings across 1,078 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-06-30 reporting period, 1,078 institutions disclosed 458.1M shares of ARCH CAPITAL GROUP LTD. worth $31.31B; the largest disclosed holder is VANGUARD GROUP INC. Source: SEC Form 13F filings, parsed by EvidInvest.

1,078

13F holders

$31.31B

value, 2026 filers

458.1M

shares disclosed

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ACGL's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	VANGUARD GROUP INC	41.3M	$3.96B	0.1%	—	—
2	BlackRock Inc.	32.2M	$3.25B	0.1%	—	—
3	BlackRock, Inc.	31.4M	$3.01B	0.1%	—	—
4	Artisan Partners Limited Partnership	22.7M	$2.18B	3.5%	—	—
5	VANGUARD CAPITAL MANAGEMENT LLC	22.6M	$2.17B	0.0%	—	—
6	BAMCO INC /NY/	16.7M	$1.60B	4.8%	—	—
7	STATE STREET CORP	16.3M	$1.56B	0.1%	—	—
8	WCM INVESTMENT MANAGEMENT, LLC	12.6M	$1.21B	2.8%	—	—
9	GEODE CAPITAL MANAGEMENT, LLC	10.6M	$1.01B	0.1%	—	—
10	JPMORGAN CHASE & CO	6.8M	$648.5M	0.0%	—	—
11	NORGES BANK	4.8M	$463.2M	0.0%	—	—
12	Nuveen Asset Management, LLC	4.9M	$451.5M	0.1%	—	—
13	NORTHERN TRUST CORP	4.5M	$429.3M	0.1%	—	—
14	Madison Investment Advisors, LLC	4.4M	$410.0M	2.3%	—	—
15	MORGAN STANLEY	4.3M	$409.0M	0.0%	—	—
16	DIMENSIONAL FUND ADVISORS LP	4.2M	$400.6M	0.1%	—	—
17	Madison Asset Management, LLC	4.1M	$391.3M	4.9%	—	—
18	Invesco Ltd.	4.1M	$389.7M	0.0%	—	—
19	Allspring Global Investments Holdings, LLC	3.6M	$346.8M	0.6%	—	—
20	ROYAL BANK OF CANADA	3.5M	$339.0M	0.1%	—	—
21	BlackRock Institutional Trust Company, N.A.	3.8M	$327.9M	0.0%	—	—
22	Polar Capital Holdings Plc	3.3M	$316.8M	1.1%	—	—
23	Legal & General Group Plc	3.3M	$315.6M	0.1%	—	—
24	UBS ASSET MANAGEMENT AMERICAS INC	3.2M	$305.2M	0.1%	—	—
25	MARSHFIELD ASSOCIATES	3.1M	$292.9M	5.9%	—	—

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.