ZLAB 10-Q: Material agreement
Zai Lab's subsidiary
Filed with the SEC on · accession 0001628280-26-070521
ZLAB filed a 10-Q (quarterly report) with the SEC on Nov 5, 2026. Zai Lab's subsidiary entered into Addendum No. 4 to its 2021 Collaboration and License Agreement with argenx BV, expanding development activities for autoimmune indications (AIE, Graves' disease, SN-gMG and oMG) and amending royalty and milestone payment obligations, including a one-time milestone… The stock moved -0.9% by the first close after the filing.
Summary of the filing
Zai Lab's subsidiary entered into Addendum No. 4 to its 2021 Collaboration and License Agreement with argenx BV, expanding development activities for autoimmune indications (AIE, Graves' disease, SN-gMG and oMG) and amending royalty and milestone payment obligations, including a one-time milestone payment upon first regulatory approvals in China.
Key details
How ZLAB stock reacted
Close before
$22.80
Nov 4, 2026
First close after
-0.88%
$22.60
5 trading days
—
Since filing
+6.49%
$24.28
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Click hereFrequently asked questions
What did ZLAB file with the SEC on Nov 5, 2026?
ZLAB filed a 10-Q (Material agreement). Zai Lab's subsidiary entered into Addendum No. 4 to its 2021 Collaboration and License Agreement with argenx BV, expanding development activities for autoimmune indications (AIE, Graves' disease, SN-gMG and oMG) and amending royalty and milestone payment obligations, including a one-time milestone payment upon first regulatory approvals in China.
What does a material agreement mean for ZLAB stock?
A contract important enough that investors need to know about it — a big customer contract, a loan, a merger agreement or a partnership.
How do I read a 10-Q?
The quarterly report: unaudited results for the quarter plus management’s comments. Compare revenue, margins and cash flow with the same quarter last year. Check MD&A for guidance changes and what drove the quarter.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 10-Q (quarterly report): The quarterly report: unaudited results for the quarter plus management’s comments.
How did ZLAB stock react to this filing?
ZLAB closed at $22.80 before the filing and $22.60 on Nov 5, 2026 (-0.88%).
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