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Ownership

Who owns Zai Lab Ltd, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).

Stakes over 5%

Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.

TCG Crossover GP II, LLC, TCG Crossover Fund II, L.P., TCG Crossover GP III, LLC June 11, 2026

TCG Crossover GP II, LLC: 2.6% · 29,565,330 shares — TCG Crossover Fund II, L.P.: 2.6% · 29,565,330 shares — TCG Crossover GP III, LLC: 2.6% · 29,565,420 shares

RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah April 06, 2026

RA Capital Management, L.P.: 5.2% · 57,435,330 shares — Peter Kolchinsky: 5.2% · 57,435,330 shares — Rajeev Shah: 5.2% · 57,435,330 shares

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Super investors holding ZLAB

Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Zai Lab Ltd they hold. Together these 154 managers report 4.29% of shares outstanding.

Investor Position value Shares % of their portfolio % of company As of
RTW INVESTMENTS, LP $125M 6,574,032 1.07% 0.59% June 30, 2026
TCG Crossover Management, LLC $117M 6,137,627 2.80% 0.55% June 30, 2026

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Funds holding ZLAB

Funds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 52 funds hold 1.77% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.

Fund Position value % of net assets % of company As of
Baron Emerging Markets Fund $26M 0.65% 0.12% June 30, 2026
iShares Core MSCI Emerging Markets ETF $22.6M 0.02% 1.06% February 28, 2026

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