SABS 424B3: Secondary offering
SAB Biotherapeutics
Filed with the SEC on · accession 0001193125-26-361180
SABS filed a 424B3 (prospectus (offering)) with the SEC on Aug 21, 2026. The final terms of an offering of shares or bonds. The stock moved +2.2% by the first close after the filing.
Summary of the filing
SAB Biotherapeutics filed a prospectus supplement registering up to 250,000,000 shares of common stock for resale by selling stockholders, consisting of shares issuable upon conversion of Series B Convertible Preferred Stock and related warrants.
Key details
How SABS stock reacted
Close before
$3.70
Aug 20, 2026
First close after
+2.16%
$3.78
5 trading days
+6.22%
$3.93
Since filing
-20.54%
$2.94
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Click hereFrequently asked questions
What did SABS file with the SEC on Aug 21, 2026?
SABS filed a 424B3 (Secondary offering). SAB Biotherapeutics filed a prospectus supplement registering up to 250,000,000 shares of common stock for resale by selling stockholders, consisting of shares issuable upon conversion of Series B Convertible Preferred Stock and related warrants.
What does a secondary offering mean for SABS stock?
New shares dilute existing holders and are often sold at a discount to the market price.
How do I read a 424B3?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
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 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did SABS stock react to this filing?
SABS closed at $3.70 before the filing and $3.78 on Aug 21, 2026 (+2.16%). Five trading days later: $3.93 (+6.22%).
Other SABS SEC filings
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