Arch Capital Group Ownership | Who Owns Arch Capital Group?

Overview Forecast RevenueFinancials Chart Transcripts

Arch Capital Group Ownership Summary

Arch Capital Group is owned by 23.26% institutional investors, 3.22% insiders, and 73.52% retail investors. Vanguard group is the largest institutional shareholder, holding 11.19% of ACGL shares. Artisan International Value is the top mutual fund, with 4.73% of its assets in Arch Capital Group shares.

ACGL Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Arch Capital Group	23.26%	3.22%	73.52%
Sector	Financial Services Stocks	32.19%	15.44%	52.37%
Industry	Diversified Insurance Stocks	36.79%	11.93%	51.28%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	41.29M	11.19%	$3.96B
Blackrock	32.18M	8.68%	$3.25B
Blackrock funding, inc. /de	31.35M	8.50%	$3.01B
Artisan partners limited partnership	22.67M	6.14%	$2.18B
Bamco inc /ny/	16.71M	4.53%	$1.60B
State street	16.25M	4.40%	$1.56B
Wcm investment management	12.60M	3.42%	$1.21B
Geode capital management	10.59M	2.87%	$1.01B
Jpmorgan chase	6.78M	1.84%	$648.46M
Nuveen asset management	4.89M	1.31%	$451.50M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
High ground investment management llp	1.79M	31.97%	$172.19M
Philosmith capital	287.57K	7.87%	$27.60M
Robertson opportunity capital	202.11K	7.46%	$19.40M
Bancreek capital management, lp	16.37K	6.80%	$1.57M
Fpr partners	666.11K	6.76%	$61.51M
Maren capital	1.18M	5.92%	$113.16M
New vernon investment management	57.70K	5.88%	$5.54M
Marshfield associates	3.05M	5.87%	$292.91M
Madison asset management	4.08M	4.85%	$391.30M
Bamco inc /ny/	16.71M	4.84%	$1.60B

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	4.83M	0.05%	4.83M
Blackrock	32.18M	0.07%	4.51M
Madison investment advisors	4.44M	4.62%	4.44M
Jones financial companies lllp	2.11M	0.09%	2.10M
Boston partners	2.09M	0.21%	2.09M

Top Sellers

Holder	Shares	% Assets	Change
Capital world investors	-	-	-1.71M
Bamco inc /ny/	16.71M	4.84%	-1.28M
Principal financial group	3.27M	0.17%	-1.25M
Orbis allan gray	-	-	-1.03M
Vanguard group	41.29M	0.06%	-1.02M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	4.83M	0.05%	4.83M	$463.21M
Madison investment advisors	4.44M	4.62%	4.44M	$410.01M
Boston partners	2.09M	0.21%	2.09M	$200.89M
Vanguard fiduciary trust	2.00M	0.05%	2.00M	$191.56M
Vanguard global advisers	788.38K	0.04%	788.38K	$75.68M

Sold Out

Holder	Change
Murphy & mullick capital management	-1.00
Td capital management	-4.00
Creative financial designs inc /adv	-5.00
Sugar maple asset management	-5.00
Old second national bank of aurora	-5.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	406	-52.29%	85,831,470	-73.68%	23	0.30%	199	-51.11%	139	-57.10%
Sep 30, 2025	451	-47.62%	110,997,990	-66.93%	29	0.37%	220	-51.11%	164	-42.86%
Jun 30, 2025	855	-	334,038,350	1.41%	89	1.24%	449	6.15%	283	-9.00%
Mar 31, 2025	19	-97.77%	25,442,535	-92.53%	6	0.08%	4	-99.09%	9	-96.98%
Dec 31, 2024	823	-3.86%	339,338,151	3.54%	90	1.18%	414	-8.41%	293	2.81%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Artisan International Value	16.68M	4.73%	-447.08K
Artisan International Value Investor	16.68M	4.73%	-447.08K
Vanguard US Total Market Shares ETF	11.33M	3.02%	51.94K
Vanguard Total Stock Mkt Idx Inv	10.73M	3.01%	-156.73K
Vanguard Institutional 500 Index Trust	10.66M	2.85%	74.30K
Vanguard 500 Index Investor	9.10M	2.55%	-186.49K
Baron Small Cap Growth Strategy	8.43M	2.25%	-125.00K
Vanguard Mid Cap Index Institutional	7.30M	2.05%	-185.62K
Baron Partners Retail	6.17M	1.73%	-
Baron Growth Retail	5.99M	1.68%	-1.14M

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 11, 2026	Posner Brian S	-	Sell	$34.28K
Apr 30, 2026	Houston Daniel Joseph	-	Buy	$498.65K
Mar 11, 2026	Posner Brian S	-	Sell	$51.34K
Mar 10, 2026	Gansberg David	President, Arch Capital Group	Sell	$569.27K
Mar 10, 2026	Papadopoulo Nicolas	CEO	Sell	$2.11M

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	1	1
2026 Q1	-	4
2025 Q4	-	4
2025 Q3	1	1
2025 Q2	-	5

ACGL Ownership FAQ

Who Owns Arch Capital Group?

Arch Capital Group shareholders are primarily institutional investors at 23.26%, followed by 3.22% insiders and 73.52% retail investors. The average institutional ownership in Arch Capital Group's industry, Diversified Insurance Stocks, is 36.79%, which Arch Capital Group falls below.

Who owns the most shares of Arch Capital Group?

Arch Capital Group’s largest shareholders are Vanguard group (41.29M shares, 11.19%), Blackrock (32.18M shares, 8.68%), and Blackrock funding, inc. /de (31.35M shares, 8.50%). Together, they hold 28.36% of Arch Capital Group’s total shares outstanding.

Does Blackrock own Arch Capital Group?

Yes, BlackRock owns 8.68% of Arch Capital Group, totaling 32.18M shares as of Jun 2024. This represents 0.07% of BlackRock's total assets, with a market value of 3.25B$. In the last quarter, BlackRock increased its holdings by 4.51M shares, a 16.28% change.

Who is Arch Capital Group’s biggest shareholder by percentage of total assets invested?

High ground investment management llp is Arch Capital Group’s biggest shareholder by percentage of total assets invested, with 31.97% of its assets in 1.79M Arch Capital Group shares, valued at 172.19M$.

Who is the top mutual fund holder of Arch Capital Group shares?

Artisan International Value is the top mutual fund holder of Arch Capital Group shares, with 4.73% of its total shares outstanding invested in 16.68M Arch Capital Group shares.

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