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

CUSIP: 98887Q104

Q2 2026 13F Holders as of 30 Jun 2026

Holder snapshot 6 signals
Share change
-11,575
SEC-reported price per share
$19.00
Number of holders
8
Value change
-$215,165
Number of buys
1
Number of sells
6
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
1,115,674,528

Security key

98887Q104

Report period

Q2 2026

Institutions

8

Top holders

8

Ownership snapshot

Top reported holders of ZLAB - Zai Lab Ltd - Ordinary Shares, par value $0.000006 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
RTW INVESTMENTS, LP
Disclosed value leader
Qiming Venture Partners I...
Comparable rows
15/15
Latest evidence
02 Jun 2026
13D/G 13F Lead comparable stake: 6.3% 13D/G row: RTW INVESTMENTS, LP Showing 1-6 of 15 holder rows.

Quick read

RTW INVESTMENTS, LP leads the comparable SEC ownership view at 6.3%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens RTW INVESTMENTS, LP's linked filing trail.
Comparable ownership Top 5
RTW INVESTMENTS, LP 6.3%
Qiming Venture Partners IV, L.P. 6%
TCG Crossover GP II, LLC 5.3%
RA CAPITAL MANAGEMENT, L.P. 5.2%
Qiming Corporate GP IV, Ltd 4.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
RTW INVESTMENTS, LP
13D/G 13F
Company
6.3%
$1,258,888,889
69,590,320 shares
+$844,379,694 31 Dec 2025
Qiming Venture Partners IV, L.P.
13D/G
Qiming Corporate GP IV, Ltd.
6%
$2,365,303,551
66,329,320 shares
$0 30 Jun 2025
TCG Crossover GP II, LLC
13D/G
Chen Yu
5.3%
$1,210,406,452
59,130,750 shares
$0 02 Jun 2026
RA CAPITAL MANAGEMENT, L.P.
13D/G 13F
Company
5.2%
$1,083,804,677
57,435,330 shares
$0 30 Mar 2026
Qiming Corporate GP IV, Ltd
13D/G
4.4%
$884,305,102
48,883,643 shares
$0 31 Dec 2025
WELLINGTON MANAGEMENT GROUP LLP
13D/G
4.3%
48,112,590 shares
$0 31 Dec 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
8
Shares
586,902
Rows available
8
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders
99
Q2 2026 holders
8
Holder diff
-91
Investor Q1 2026 Shares Q2 2026 Shares Share Diff Share Chg % Q1 2026 value Q2 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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