AI Biotechnology LLC - 26 Feb 2026 Form 4 Insider Report for Zura Bio Ltd (ZURA)

Role: 10%+ Owner
Signature: /s/ Alejandro Moreno for AI Biotechnology LLC
Issuer symbol: ZURA
Transactions as of: 26 Feb 2026
Net transactions value: +$12,500,000
Form type: 4
Filing time: 02 Mar 2026, 17:55:03 UTC
Previous filing: 28 May 2025
SEC: View on sec.gov

Reporting Owners (4)

Name	Relationship	Address	Signature	Signature date	CIK
AI Biotechnology LLC	10%+ Owner	C/O ACCESS INDUSTRIES, INC., 40 WEST 57TH STREET, 28TH FLOOR, NEW YORK	/s/ Alejandro Moreno for AI Biotechnology LLC	02 Mar 2026	0001942670
Access Industries Holdings LLC	10%+ Owner	C/O ACCESS INDUSTRIES, INC., 40 WEST 57TH STREET, 28TH FLOOR, NEW YORK	/s/ Alejandro Moreno for Access Industries Holdings LLC	02 Mar 2026	0001391297
ACCESS INDUSTRIES MANAGEMENT, LLC	10%+ Owner	C/O ACCESS INDUSTRIES, INC., 40 WEST 57TH STREET, 28TH FLOOR, NEW YORK	/s/ Alejandro Moreno for Access Industries Management, LLC	02 Mar 2026	0001508226
Blavatnik Len	10%+ Owner	C/O ACCESS INDUSTRIES, INC., 40 WEST 57TH STREET, 28TH FLOOR, NEW YORK	/s/ Alejandro Moreno, as Attorney-in-Fact for Mr. Blavatnik	02 Mar 2026	0001326628

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZURA	Class A Ordinary Shares	Purchase	$12,500,000	+2,000,000	+44%	$6.25	6,552,725	26 Feb 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares of Class A Ordinary Shares acquired pursuant to a registered offering of Class A Ordinary Shares by the Issuer.
F2	The securities reported are held directly by AI Biotechnology LLC ("AIB") and may be deemed to be beneficially owned by Access Industries Holdings LLC ("AIH"), Access Industries Management, LLC ("AIM") and Len Blavatnik because (i) Mr. Blavatnik controls AIM and AIH, (ii) AIM controls AIH, and (iii) AIH owns all of the voting units of AIB. Each of AIH, AIM and Mr. Blavatnik, and each of their affiliated entities and the officers, partners, members and managers thereof, disclaims beneficial ownership of these securities, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form.

Content

Shares of Class A Ordinary Shares acquired pursuant to a registered offering of Class A Ordinary Shares by the Issuer.

The securities reported are held directly by AI Biotechnology LLC ("AIB") and may be deemed to be beneficially owned by Access Industries Holdings LLC ("AIH"), Access Industries Management, LLC ("AIM") and Len Blavatnik because (i) Mr. Blavatnik controls AIM and AIH, (ii) AIM controls AIH, and (iii) AIH owns all of the voting units of AIB. Each of AIH, AIM and Mr. Blavatnik, and each of their affiliated entities and the officers, partners, members and managers thereof, disclaims beneficial ownership of these securities, except to the extent of its or his pecuniary interest therein, and this form shall not be construed as an admission that any such reporting person is the beneficial owner of any of the securities reported on this form.