KRRO SCHEDULE 13G/A: SEC filing
An institutional holder
Filed with the SEC on · accession 0002012383-26-003917
KRRO filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Oct 27, 2026. An institutional holder filed an amended Schedule 13G for Korro Bio, Inc. (KRRO), indicating a change in beneficial ownership position. The stock moved +10.6% by the first close after the filing.
Summary of the filing
An institutional holder filed an amended Schedule 13G for Korro Bio, Inc. (KRRO), indicating a change in beneficial ownership position. The filing is a routine passive ownership update.
Key details
How KRRO stock reacted
Close before
$12.02
Oct 26, 2026
First close after
+10.65%
$13.30
5 trading days
+31.82%
$15.85
Since filing
+29.95%
$15.62
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Click hereFrequently asked questions
What did KRRO file with the SEC on Oct 27, 2026?
KRRO filed a SCHEDULE 13G/A (SEC filing). An institutional holder filed an amended Schedule 13G for Korro Bio, Inc. (KRRO), indicating a change in beneficial ownership position. The filing is a routine passive ownership update.
How do I read a SCHEDULE 13G/A?
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/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).
How did KRRO stock react to this filing?
KRRO closed at $12.02 before the filing and $13.30 on Oct 27, 2026 (+10.65%). Five trading days later: $15.85 (+31.82%).
Other KRRO SEC filings
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