RTSN SCHEDULE 13D: Activist campaign
A Schedule 13D was
Filed with the SEC on · accession 0001213900-26-109425
RTSN filed a SCHEDULE 13D (schedule 13d) with the SEC on Oct 14, 2026. A Schedule 13D was filed regarding Retension Pharmaceuticals, Inc. (RTSN), indicating a reporting person has acquired a greater than 5% beneficial ownership stake with potential plans or proposals for the company. The stock moved +0.1% by the first close after the filing.
Summary of the filing
A Schedule 13D was filed regarding Retension Pharmaceuticals, Inc. (RTSN), indicating a reporting person has acquired a greater than 5% beneficial ownership stake with potential plans or proposals for the company. The filing details are not fully available in the provided text.
Key details
How RTSN stock reacted
Close before
$11.63
Oct 13, 2026
First close after
+0.09%
$11.64
5 trading days
+39.12%
$16.18
Since filing
-5.07%
$11.04
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Click hereFrequently asked questions
What did RTSN file with the SEC on Oct 14, 2026?
RTSN filed a SCHEDULE 13D (Activist campaign). A Schedule 13D was filed regarding Retension Pharmaceuticals, Inc. (RTSN), indicating a reporting person has acquired a greater than 5% beneficial ownership stake with potential plans or proposals for the company. The filing details are not fully available in the provided text.
What does a activist campaign mean for RTSN stock?
A settlement removes uncertainty; the stock often reacts to whether the amount is bigger or smaller than investors expected.
How do I read a SCHEDULE 13D?
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 13D (schedule 13d): A report the company filed with the SEC (the US market regulator).
How did RTSN stock react to this filing?
RTSN closed at $11.63 before the filing and $11.64 on Oct 14, 2026 (+0.09%). Five trading days later: $16.18 (+39.12%).
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