ARCH CAP GROUP LTD (ACGL) Institutional Ownership Changes & 13F Activity

ARCH CAP GROUP LTD (ACGL). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include California State Teachers Retirement System, Sixth Street Partners Management Company, L.P., Aqr Capital Management Llc, Wells Fargo & Company/Mn, and Ameriprise Financial Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheSell-90,326-21.1%336,952$32.70MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+87,505+166.6%140,023$13.59MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustSell-43-7.0%572$55.52KQ2 2026Sep 04, 2026
Anchor Capital Advisors LlcBuy+436,542+98.5%879,646$85.38MQ2 2026Sep 03, 2026
Allianz Asset Management GmbhBuy+466,341+134.4%813,230$78.85MQ2 2026Sep 02, 2026
Citadel Advisors LlcBuy+445,359+449.1%544,524$52.85MQ2 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Sell-33-34.7%62$6.02KQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+58+46.8%182$17.66KQ2 2026Aug 28, 2026
Corient Private Wealth LlcBuy+72,171+140.5%123,546$11.99MQ2 2026Aug 27, 2026
Vela Investment Management, LlcSell-841-0.7%126,423$12.27MQ2 2026Aug 27, 2026
Wellington Grp LlcBuy+25,83225,832$2.49MQ2 2026Aug 26, 2026
California State Teachers Retirement SystemBuy+47,716,097+10080.9%48,189,430$48.19MQ2 2026Aug 24, 2026
Cyber Hornet Etfs LlcSell-44-4.4%947$91.92KQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+87,489+691.2%100,146$9.72MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+56,475+79.0%127,932$12.42MQ2 2026Aug 19, 2026
Beacon Pointe Advisors, LlcBuy+1,636+18.7%10,366$1.01MQ2 2026Aug 18, 2026
Empowered Funds, LlcBuy+8,672+26.8%41,062$3.99MQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+7,050+6.1%122,747$11.91MQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcSell-2,929-61.6%1,823$176.97KQ2 2026Aug 17, 2026
Jefferies Financial Group Inc.Buy+2,1932,193$212.85KQ2 2026Aug 17, 2026
United Capital Financial Advisors, LlcSell-1,829-1.8%101,476$9.85MQ2 2026Aug 17, 2026
Pure Financial Advisors, LlcBuy+265+10.1%2,876$279.11KQ2 2026Aug 17, 2026
Equitable Holdings, Inc.Sell-65-0.3%18,546$1.80MQ2 2026Aug 17, 2026
Sixth Street Partners Management Company, L.P.Buy+2,177,7132,177,713$211.37MQ2 2026Aug 14, 2026
Aqr Capital Management LlcSell-1,377,778-50.4%1,353,793$131.40MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnSell-1,215,106-51.0%1,165,234$113.10MQ2 2026Aug 14, 2026
Ameriprise Financial IncSell-898,517-56.0%705,273$68.45MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+887,704+21.9%4,947,084$480.16MQ2 2026Aug 14, 2026
Bamco IncSell-837,309-5.0%15,872,450$1.54BQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+696,609+295.0%932,724$90.53MQ2 2026Aug 14, 2026
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Frequently asked questions about ACGL activity

  • Which institutional owners are buying ACGL?

    Institutional owners buying ACGL include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ACGL activity?

    "Buy" means an investor increased their reported position in ACGL compared to the prior reporting period. This reflects growing exposure to ARCH CAP GROUP LTD (ACGL) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ACGL increasing?

    Institutional interest in ACGL can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.