OBX SCHEDULE 13G: SEC filing
Filed with the SEC on · accession 0001346824-26-000218
OBX filed a SCHEDULE 13G (schedule 13g) with the SEC on Aug 10, 2026. RA Capital Management, Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund filed a joint filing agreement as an exhibit to a Schedule 13G regarding their beneficial ownership of Obsidian Therapeutics common stock. The stock moved +27.3% by the first close after the filing.
Summary of the filing
RA Capital Management, Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund filed a joint filing agreement as an exhibit to a Schedule 13G regarding their beneficial ownership of Obsidian Therapeutics common stock. The agreement allows the filers to file a single Schedule 13G/13D on behalf of all parties.
Key details
How OBX stock reacted
Close before
$27.50
Aug 7, 2026
First close after
+27.27%
$35.00
5 trading days
-35.38%
$17.77
Since filing
-49.58%
$13.87
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Click hereFrequently asked questions
What did OBX file with the SEC on Aug 10, 2026?
OBX filed a SCHEDULE 13G (SEC filing). RA Capital Management, Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund filed a joint filing agreement as an exhibit to a Schedule 13G regarding their beneficial ownership of Obsidian Therapeutics common stock. The agreement allows the filers to file a single Schedule 13G/13D on behalf of all parties.
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 OBX stock react to this filing?
OBX closed at $27.50 before the filing and $35.00 on Aug 10, 2026 (+27.27%). Five trading days later: $17.77 (-35.38%).
Other OBX SEC filings
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