ARCH CAPITAL GROUP LTD. (ACGL)

Financials · Fire, Marine & Casualty Insurance

ARCH CAPITAL GROUP LTD. (ACGL) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.

Top institutional holders (2026-Q3)

InstitutionSharesValue% Outstanding
COOKE & BIELER LP 1,831,651 69.17M —
Sumitomo Mitsui Trust Group, Inc. 853,270 $78.81M —
WEDBUSH SECURITIES INC 740,334 $387 —
GENERAL AMERICAN INVESTORS CO INC 530,200 $48.97M —
TSFG, LLC 338,865 — —
CONFLUENCE INVESTMENT MANAGEMENT LLC 315,201 $29.11M —
ARGA Investment Management, LP 288,612 $26.66M —
PhiloSmith Capital Corp 286,070 $26.42M —

Recent insider transactions

DateInsiderTitleTypeValue
2026-08-18 Morin Francois CFO and Treasurer Sale .09M
2026-06-03 Posner Brian S Director Sale $59.0K
2026-05-11 Posner Brian S Director Sale $34.3K
2026-04-30 Houston Daniel Joseph Director Purchase $498.7K
2026-03-11 Posner Brian S Director Sale $51.3K
2026-03-10 Gansberg David President, Arch Capital Group Sale $569.3K
2026-03-10 Papadopoulo Nicolas CEO, Director Sale $2.11M

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Holdings from SEC 13F. Insider trades from Form 4. Congress from House and Senate PTRs. Real-time market prices via TradingView.