Every company that wants to go public in the US must first register with the SEC - US companies file an S-1, foreign companies an F-1, and the final priced prospectus arrives as a 424B4 just before shares trade. This tracker lists 6,495 registration filings, newest first, parsed directly from SEC EDGAR. Companies in registration usually have no ticker yet; tickers appear once assigned.
| Company | Stage | Ticker | Filed |
|---|---|---|---|
| Enphase Energy, Inc. | Amended registration | ENPH | 2011-09-23 |
| CervoMed Inc. | Amended registration | CRVO | 2011-09-22 |
| SOLLENSYS CORP. | Amended registration | SOLS | 2011-09-21 |
| Permianville Royalty Trust | Amended registration | PVL | 2011-09-19 |
| Ubiquiti Inc. | Amended registration |
An S-1 is the first public look at a private company - financials, risk factors, and how it plans to use the money. Most companies amend the registration several times (S-1/A) as the SEC reviews it and terms firm up. When you see the final priced prospectus (424B4), the IPO is days or hours away. Once a company starts trading you can follow it in the market cap rankings with full financial statements and filing history.
| UI |
| 2011-09-16 |
| Bristow Group Inc. | Amended registration | VTOL | 2011-09-14 |
| Cellectar Biosciences, Inc. | Amended registration | CLRB | 2011-09-14 |
| Artisan Partners Asset Management Inc. | Amended registration | APAM | 2011-09-12 |
| MACOM Technology Solutions Holdings, Inc. | Amended registration | MTSI | 2011-09-09 |
| SUMISHO AIR LEASE CORP | Amended registration | AL | 2011-09-02 |
| ASPEN AEROGELS INC | Amended registration | ASPN | 2011-09-01 |
| Proto Labs Inc | Amended registration | PRLB | 2011-08-31 |
| BOSTON OMAHA Corp | Amended registration | BOC | 2011-08-30 |
| EPAM Systems, Inc. | Amended registration | EPAM | 2011-08-26 |
| Enphase Energy, Inc. | Amended registration | ENPH | 2011-08-24 |
| SUMISHO AIR LEASE CORP | Amended registration | AL | 2011-08-22 |
| Aptiv PLC | Amended registration | APTV | 2011-08-19 |
| Ally Financial Inc. | Amended registration | ALLY | 2011-08-18 |
| LyondellBasell Industries N.V. | Amended registration | LYB | 2011-08-17 |
| LyondellBasell Industries N.V. | Amended registration | LYB | 2011-08-17 |
| Zurn Elkay Water Solutions Corp | Amended registration | ZWS | 2011-08-15 |
| Cellectar Biosciences, Inc. | Amended registration | CLRB | 2011-08-15 |
| SOLLENSYS CORP. | Amended registration | SOLS | 2011-08-12 |
| Ubiquiti Inc. | Amended registration | UI | 2011-08-12 |
| SUMISHO AIR LEASE CORP | Amended registration | AL | 2011-08-12 |
| Allison Transmission Holdings Inc | Amended registration | ALSN | 2011-08-10 |
| UNITED COMMUNITY BANKS INC | Amended registration | UCB | 2011-08-10 |
| Mechanics Bancorp | Amended registration | MCHB | 2011-08-09 |
| USA Compression Partners, LP | Amended registration | USAC | 2011-08-08 |
| ASPEN AEROGELS INC | Amended registration | ASPN | 2011-08-08 |
| Permianville Royalty Trust | Amended registration | PVL | 2011-08-03 |
| Aptiv PLC | Amended registration | APTV | 2011-08-01 |
| Permianville Royalty Trust | Amended registration | PVL | 2011-08-01 |
| Customers Bancorp, Inc. | Amended registration | CUBI | 2011-07-29 |
| Permianville Royalty Trust | Amended registration | PVL | 2011-07-29 |
| Ubiquiti Inc. | Amended registration | UI | 2011-07-28 |
| SUMISHO AIR LEASE CORP | Amended registration | AL | 2011-07-28 |
| Chefs' Warehouse, Inc. | Amended registration | CHEF | 2011-07-27 |
| Mechanics Bancorp | Amended registration | MCHB | 2011-07-26 |
| ASPEN AEROGELS INC | Amended registration | ASPN | 2011-07-26 |
| Enphase Energy, Inc. | Amended registration | ENPH | 2011-07-25 |
| Permianville Royalty Trust | Amended registration | PVL | 2011-07-25 |
| EPAM Systems, Inc. | Amended registration | EPAM | 2011-07-22 |
| Chefs' Warehouse, Inc. | Amended registration | CHEF | 2011-07-15 |
| SOLLENSYS CORP. | Amended registration | SOLS | 2011-07-14 |
| IMPINJ INC | Amended registration | PI | 2011-07-14 |
| Chefs' Warehouse, Inc. | Amended registration | CHEF | 2011-07-14 |
| Aptiv PLC | Amended registration | APTV | 2011-07-13 |
| ASSEMBLY BIOSCIENCES, INC. | Amended registration | ASMB | 2011-07-13 |
| Artisan Partners Asset Management Inc. | Amended registration | APAM | 2011-07-11 |