<SEC-DOCUMENT>0001193125-26-212047-index.html : 20260507
<SEC-HEADER>0001193125-26-212047.hdr.sgml : 20260507
<ACCEPTANCE-DATETIME>20260507161959
ACCESSION NUMBER:		0001193125-26-212047
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20260507
DATE AS OF CHANGE:		20260507

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LeonaBio, Inc.
		CENTRAL INDEX KEY:			0001620463
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				453368487
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91705
		FILM NUMBER:		26953743

	BUSINESS ADDRESS:	
		STREET 1:		18706 NORTH CREEK PARKWAY, SUITE 104
		CITY:			BOTHELL
		STATE:			WA
		ZIP:			98011
		BUSINESS PHONE:		(425) 620-8501

	MAIL ADDRESS:	
		STREET 1:		18706 NORTH CREEK PARKWAY, SUITE 104
		CITY:			BOTHELL
		STATE:			WA
		ZIP:			98011

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Athira Pharma, Inc.
		DATE OF NAME CHANGE:	20190916

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	M3 Biotechnology, Inc.
		DATE OF NAME CHANGE:	20140924

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERCEPTIVE ADVISORS LLC
		CENTRAL INDEX KEY:			0001224962
		ORGANIZATION NAME:           	
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		51 ASTOR PLACE, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003
		BUSINESS PHONE:		646-205-5300

	MAIL ADDRESS:	
		STREET 1:		51 ASTOR PLACE, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>