Tempest Therapeutics, Inc. (TPST) IPO - S-1 Filing, Stock & Insider Activity
Tempest Therapeutics, Inc. IPO - Status & S-1 Filing
- Ticker: TPST
- Status: Registered - S-1 filed with the SEC
- S-1 filed: 2025-12-09
- Exchange: NASDAQ
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- Shares offered: 1,172,414
- SEC CIK: 0001544227 · View the S-1 on SEC EDGAR →
Track every registration update on the InsiderAlpha IPO tracker.
Last SEC filing
Tempest Therapeutics, Inc. (TPST) has filed 3 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-23. Insiders disclosed 3 open-market purchases totaling $500K. 10 Form 8-K material event filings were reported by TPST in the last 90 days. InsiderAlpha tracks every TPST SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Tempest Therapeutics, Inc. (TPST)
Tempest Therapeutics, Inc. trades under the ticker TPST. InsiderAlpha tracks 11 primary SEC Form 4 filings from 9 reporting insiders for TPST since 2026, sourced directly from SEC EDGAR.
| SEC CIK | 0001544227 |
|---|
90-Day SEC Filing Activity
| Insider purchases (90d) | 3 ($500K) |
|---|---|
| Form 4 filings (90d) | 3 |
| Form 8-K filings (90d) | 10 |
| Latest Form 4 filing | 2026-06-23 |
Recent TPST Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Matthew Angel | CEO and President | P - Open-market purchase | 231.5K | $2.16 | $500K | SEC | |
| Matthew Angel | CEO and President | P - Open-market purchase | 231.5K | $2.16 | $500K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Tempest Therapeutics, Inc. (TPST). Updated in real time as new filings are submitted to the SEC.
Most-Active TPST Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Matthew Angel | 3 | $500K |
| William Drake Richey | 1 | - |
| John D. Yee | 1 | - |
Recent TPST Form 8-K Material Events
- - Item 5.07, 8.01 [SEC]
- - Item 1.01, 7.01, 9.01 [SEC]
- - Item 5.07 [SEC]
- - Item 5.02, 7.01, 9.01 [SEC]
- - Item 1.01, 3.02, 9.01 [SEC]
Recent Insider Filings
- - Matthew Angel (CEO and President)
- - John D. Yee (Insider)
- - William Drake Richey (Insider)
- - Justin Trojanowski (Corporate Controller)
- - Nicholas Maestas (Chief Financial Officer)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in TPST insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
TPST Insider Trading - FAQ
- What is the latest insider trade for TPST?
- Tempest Therapeutics, Inc. (TPST) had 3 insider filings in the last 90 days, with the most recent on 2026-06-23. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying TPST stock?
- 3 insider purchases of TPST were filed in the last 90 days, totaling $500K.
- How many insiders are selling TPST stock?
- 0 insider sales of TPST were filed in the last 90 days.
- Where can I see TPST SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks TPST Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live TPST dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.