TPST 424B3: Secondary offering
Tempest Therapeutics
Filed with the SEC on · accession 0001213900-26-106362
TPST filed a 424B3 (prospectus (offering)) with the SEC on Oct 2, 2026. The final terms of an offering of shares or bonds. The stock moved +0.6% by the first close after the filing.
Summary of the filing
Tempest Therapeutics filed a prospectus for the resale of up to 9,534,164 shares of common stock by selling stockholders, including shares issuable upon exercise of pre-funded warrants, Series C and D warrants, and placement agent warrants, issued in a private placement on September 11, 2026.
Key details
How TPST stock reacted
Close before
$0.81
Oct 1, 2026
First close after
+0.63%
$0.81
5 trading days
-4.48%
$0.77
Since filing
-53.23%
$0.38
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Click hereFrequently asked questions
What did TPST file with the SEC on Oct 2, 2026?
TPST filed a 424B3 (Secondary offering). Tempest Therapeutics filed a prospectus for the resale of up to 9,534,164 shares of common stock by selling stockholders, including shares issuable upon exercise of pre-funded warrants, Series C and D warrants, and placement agent warrants, issued in a private placement on September 11, 2026.
What does a secondary offering mean for TPST 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 TPST stock react to this filing?
TPST closed at $0.81 before the filing and $0.81 on Oct 2, 2026 (+0.63%). Five trading days later: $0.77 (-4.48%).
Other TPST SEC filings
- 8-K · Delisting noticeNov 6, 2026
- 8-K · Cfo changeOct 30, 2026
- DEF 14A · Board changeOct 26, 2026
- 8-K · SEC filingOct 20, 2026
- 8-K · Board changeOct 19, 2026
- EFFECT · Shelf registrationOct 1, 2026
- 8-K · Board changeSep 28, 2026
- S-3 · Shelf registrationSep 25, 2026
- 8-K · Material agreementSep 17, 2026
- 8-K · SEC filingSep 16, 2026
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