<SEC-DOCUMENT>0001628280-26-032335-index.html : 20260507
<SEC-HEADER>0001628280-26-032335.hdr.sgml : 20260507
<ACCEPTANCE-DATETIME>20260507172104
ACCESSION NUMBER:		0001628280-26-032335
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20260507
DATE AS OF CHANGE:		20260507

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cayson Acquisition Corp
		CENTRAL INDEX KEY:			0002024203
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-94630
		FILM NUMBER:		26954925

	BUSINESS ADDRESS:	
		STREET 1:		205 W 37TH ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		203-998-5540

	MAIL ADDRESS:	
		STREET 1:		205 W 37TH ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BERKLEY W R CORP
		CENTRAL INDEX KEY:			0000011544
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		ORGANIZATION NAME:           	02 Finance
		EIN:				221867895
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		475 STEAMBOAT ROAD
		STREET 2:		.
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		2036293000

	MAIL ADDRESS:	
		STREET 1:		475 STEAMBOAT ROAD
		STREET 2:		.
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>exhibit991.pdf
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: exhibit991.pdf

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>exhibit992amendment_capn.pdf
<DESCRIPTION>EX-99.2
<TEXT>
Document 3 - file: exhibit992amendment_capn.pdf

</DOCUMENT>
</SEC-DOCUMENT>