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ACGL · Arch Capital Group Ltd. · Holdings

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$94.36 +0.76 (+0.81%)
Market Cap
$32.36B
Shares
341.23M
Volume · Oct 5 2.41M Avg daily vol (3M) 2.71M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 913
Total Value: $30,385,378,567
Total Shares: 313,072,779
Showing 1–100 of 928 holdings by value · page 1 of 10

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 914 13F filers
Top Holder
9.7%
Sep 2023 → Jun 2026 · range 9.7% – 13.0%
of institutional value
Top 5
33.9%
Sep 2023 → Jun 2026 · range 33.9% – 41.0%
of institutional value
Top 10
49.5%
Sep 2023 → Jun 2026 · range 49.5% – 54.5%
of institutional value
HHI
330
Sep 2023 → Jun 2026 · range 330 – 444
Broadly held
Showing 100 of 928
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 947484 CUSIP G0450A105 13F (30d) 26 filings 15 filers Visit website Investor relations