OSUR SCHEDULE 13D: Activist campaign
Filed with the SEC on · accession 0000945621-26-001163
OSUR filed a SCHEDULE 13D (schedule 13d) with the SEC on Sep 17, 2026. A report the company filed with the SEC (the US market regulator). The stock moved +0.3% by the first close after the filing.
Summary of the filing
Yorkville Advisors and Islet Management formed a 13D group holding more than 5% of OraSure Technologies and plan to work together to enhance shareholder value, including potentially nominating directors at the 2027 annual meeting.
Key details
How OSUR stock reacted
Close before
$3.48
Sep 16, 2026
First close after
+0.29%
$3.49
5 trading days
+14.66%
$3.99
Since filing
+1.44%
$3.53
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Click hereFrequently asked questions
What did OSUR file with the SEC on Sep 17, 2026?
OSUR filed a SCHEDULE 13D (Activist campaign). Yorkville Advisors and Islet Management formed a 13D group holding more than 5% of OraSure Technologies and plan to work together to enhance shareholder value, including potentially nominating directors at the 2027 annual meeting.
What does a activist campaign mean for OSUR 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 OSUR stock react to this filing?
OSUR closed at $3.48 before the filing and $3.49 on Sep 17, 2026 (+0.29%). Five trading days later: $3.99 (+14.66%).
Other OSUR SEC filings
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