Keystone Acquisition Corp. (KEYY) IPO - S-1 Filing, Stock & Insider Activity
Keystone Acquisition Corp. IPO - Status & S-1 Filing
- Ticker: KEYY
- Status: Priced - IPO complete
- S-1 filed: 2026-05-04
- Effective: 2026-06-02
- IPO / pricing date: 2026-06-03
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- SEC CIK: 0002102771 · View the S-1 on SEC EDGAR →
Keystone Acquisition Corp. is pre-IPO, so no insider Form 4 transactions have been filed yet. Once insiders begin reporting trades after the offering, they will appear on this page automatically.
Track every registration update on the InsiderAlpha IPO tracker.
Keystone Acquisition Corp. (KEYY) - no SEC Form 4 insider filings recorded in the last 90 days. 3 Form 8-K material event filings were reported by KEYY in the last 90 days. InsiderAlpha tracks every KEYY SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Keystone Acquisition Corp. (KEYY)
Keystone Acquisition Corp. trades under the ticker KEYY.
| SEC CIK | 0002102771 |
|---|
90-Day SEC Filing Activity
| Form 8-K filings (90d) | 3 |
|---|
Recent KEYY Form 8-K Material Events
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 KEYY 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 |
KEYY Insider Trading - FAQ
- What is the latest insider trade for KEYY?
- Keystone Acquisition Corp. (KEYY) had 0 insider filings in the last 90 days. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying KEYY stock?
- 0 insider purchases of KEYY were filed in the last 90 days.
- How many insiders are selling KEYY stock?
- 0 insider sales of KEYY were filed in the last 90 days.
- Where can I see KEYY SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks KEYY 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 KEYY dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.