RTW INVESTMENTS, LP

Holdings History for Zai Lab Ltd - Ordinary Shares, par value $0.000006 per share (ZLAB)

Symbol: ZLAB on Nasdaq
Investment type: Equity / Ordinary Shares, par value $0.000006 per share
Latest Disclosed Shares Owned: 69,590,320 shares
Security Ownership %: 6.3%

Shares, Excluding Options vs Price

Value, Excluding Options

RTW Investments, LP ownership in Zai Lab Ltd Ordinary Shares, par value $0.000006 per share (ZLAB)

17 Feb 2026 - RTW Investments, LP has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 69,590,320 shares of Zai Lab Ltd Ordinary Shares, par value $0.000006 per share (ZLAB). This represents 6.3% ownership of the company. In their previous filing dated 14 Nov 2025, RTW INVESTMENTS, LP had reported owning 22,913,720 shares, indicating an increase of +204%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
RTW Investments, LP	6.3%	+210%	$1,258,888,889	69,590,320	+46,676,600	+204%	$18.09	13G	31 Dec 2025	17 Feb 2026, 08:56
RTW Investments, LP	2.1%	-60%	$776,545,971	22,913,720	-32,455,040	-59%	$33.89	13G/A	30 Sep 2025	14 Nov 2025, 08:35
RTW Investments, LP	5.1%		$1,974,449,982	55,368,760			$35.66	13G	30 Jun 2025	14 Aug 2025, 08:14

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	1.2%	+0.82%	$122,757,324	6,959,032	+4,667,660	+204%	$17.64	Q4 2025
30 Sep 2025	0.96%	-1.4%	$77,654,597	2,291,372	-3,245,504	-59%	$33.89	Q3 2025
30 Jun 2025	2.8%	+1.2%	$193,624,554	5,536,876	+2,400,196	+77%	$34.97	Q2 2025
31 Mar 2025	1.7%	+0.35%	$113,359,615	3,136,680	+627,561		$36.14	Q1 2025
31 Dec 2024	0.99%	+0.99%	$65,713,827	2,509,119	+2,509,119	NEW	$26.19	Q4 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.