    <SEC-DOCUMENT>0000947484-25-000034-index.html : 20250325
    <SEC-HEADER>0000947484-25-000034.hdr.sgml : 20250325
    <ACCEPTANCE-DATETIME>20250325071735
    ACCESSION NUMBER:		0000947484-25-000034
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20250325
    DATE AS OF CHANGE:		20250325

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ARCH CAPITAL GROUP LTD.
    		CENTRAL INDEX KEY:			0000947484
    		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
    		ORGANIZATION NAME:           	02 Finance
    		EIN:				980374481
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-16209
    		FILM NUMBER:		25765847

    	BUSINESS ADDRESS:
    		STREET 1:		WATERLOO HOUSE, GROUND FLOOR
    		STREET 2:		100 PITTS BAY ROAD
    		CITY:			PEMBROKE
    		STATE:			D0
    		ZIP:			HM 08
    		BUSINESS PHONE:		441-278-9250

    	MAIL ADDRESS:
    		STREET 1:		WATERLOO HOUSE, GROUND FLOOR
    		STREET 2:		100 PITTS BAY ROAD
    		CITY:			PEMBROKE
    		STATE:			D0
    		ZIP:			HM 08

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ARCH CAPITAL GROUP LTD
    		DATE OF NAME CHANGE:	20000508

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RISK CAPITAL HOLDINGS INC
    		DATE OF NAME CHANGE:	19950816

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RISK CAPITAL RE INC
    		DATE OF NAME CHANGE:	19950703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>a2025defa14anotice.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: a2025defa14anotice.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>archcapitalgroupltd_vxnaxp.jpg
    <TEXT>
    Document 2 - file: archcapitalgroupltd_vxnaxp.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>archcapitalgroupltd_vxnaxpa.jpg
    <TEXT>
    Document 3 - file: archcapitalgroupltd_vxnaxpa.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>