CMPX SCHEDULE 13G: SEC filing
State Street Corporation
Filed with the SEC on · accession 0000093751-26-000634
CMPX filed a SCHEDULE 13G (schedule 13g) with the SEC on Nov 10, 2026. State Street Corporation filed a Schedule 13G reporting beneficial ownership of 7,737,938 shares, or 4.3%, of Compass Therapeutics, Inc. common stock as of September 30, 2026. The stock moved +0.1% by the first close after the filing.
Summary of the filing
State Street Corporation filed a Schedule 13G reporting beneficial ownership of 7,737,938 shares, or 4.3%, of Compass Therapeutics, Inc. common stock as of September 30, 2026. The filing is a passive institutional ownership disclosure.
Key details
How CMPX stock reacted
Close before
$0.84
Nov 9, 2026
First close after
+0.13%
$0.84
5 trading days
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Since filing
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Click hereFrequently asked questions
What did CMPX file with the SEC on Nov 10, 2026?
CMPX filed a SCHEDULE 13G (SEC filing). State Street Corporation filed a Schedule 13G reporting beneficial ownership of 7,737,938 shares, or 4.3%, of Compass Therapeutics, Inc. common stock as of September 30, 2026. The filing is a passive institutional ownership disclosure.
How do I read a SCHEDULE 13G?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
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 SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).
How did CMPX stock react to this filing?
CMPX closed at $0.84 before the filing and $0.84 on Nov 10, 2026 (+0.13%).
Other CMPX SEC filings
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