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 | Open |
|---|---|---|---|---|
| BIOMARIN PHARMACEUTICAL INC | Amended registration | BMRN | 1999-06-14 | View filing |
| ENCORE CAPITAL GROUP INC | Amended registration | ECPG | 1999-06-14 | View filing |
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.
| ZIFF DAVIS, INC. | Amended registration | ZD | 1999-06-14 | View filing |
| UNITED THERAPEUTICS Corp | Amended registration | UTHR | 1999-06-11 | View filing |
| UNITED THERAPEUTICS Corp | Amended registration | UTHR | 1999-06-10 | View filing |
| NETSCOUT SYSTEMS INC | Amended registration | NTCT | 1999-06-03 | View filing |
| F5, INC. | Amended registration | FFIV | 1999-06-02 | View filing |
| LENNOX INTERNATIONAL INC | Amended registration | LII | 1999-05-27 | View filing |
| ZIFF DAVIS, INC. | Amended registration | ZD | 1999-05-26 | View filing |
| F5, INC. | Amended registration | FFIV | 1999-05-25 | View filing |
| UNITED THERAPEUTICS Corp | Amended registration | UTHR | 1999-05-20 | View filing |
| F5, INC. | Amended registration | FFIV | 1999-05-14 | View filing |
| ENCORE CAPITAL GROUP INC | Amended registration | ECPG | 1999-05-14 | View filing |
| CROWN CASTLE INC. | Amended registration | CCI | 1999-05-07 | View filing |
| WESCO INTERNATIONAL INC | Amended registration | WCC | 1999-05-07 | View filing |
| SBA COMMUNICATIONS CORP | Amended registration | SBAC | 1999-05-07 | View filing |
| NETSCOUT SYSTEMS INC | Amended registration | NTCT | 1999-05-04 | View filing |
| WESCO INTERNATIONAL INC | Amended registration | WCC | 1999-05-03 | View filing |
| COSTAR GROUP, INC. | Amended registration | CSGP | 1999-04-30 | View filing |
| CROWN CASTLE INC. | Amended registration | CCI | 1999-04-29 | View filing |
| CNX Resources Corp | Amended registration | CNX | 1999-04-27 | View filing |
| F5, INC. | Amended registration | FFIV | 1999-04-23 | View filing |
| CROWN CASTLE INC. | Amended registration | CCI | 1999-04-22 | View filing |
| CROWN CASTLE INC. | Amended registration | CCI | 1999-04-21 | View filing |
| CNX Resources Corp | Amended registration | CNX | 1999-04-21 | View filing |
| WESCO INTERNATIONAL INC | Amended registration | WCC | 1999-04-19 | View filing |
| CROWN CASTLE INC. | Amended registration | CCI | 1999-04-14 | View filing |
| WESCO INTERNATIONAL INC | Amended registration | WCC | 1999-04-09 | View filing |
| TAKE TWO INTERACTIVE SOFTWARE INC | Amended registration | TTWO | 1999-04-09 | View filing |
| EXTREME NETWORKS INC | Amended registration | EXTR | 1999-04-08 | View filing |
| TREX CO INC | Amended registration | TREX | 1999-04-08 | View filing |
| EXTREME NETWORKS INC | Amended registration | EXTR | 1999-04-07 | View filing |
| EXTREME NETWORKS INC | Amended registration | EXTR | 1999-04-05 | View filing |
| EBAY INC | Amended registration | EBAY | 1999-04-01 | View filing |
| CNX Resources Corp | Amended registration | CNX | 1999-03-24 | View filing |
| TREX CO INC | Amended registration | TREX | 1999-03-24 | View filing |
| MKS INC | Amended registration | MKSI | 1999-03-23 | View filing |
| EXTREME NETWORKS INC | Amended registration | EXTR | 1999-03-22 | View filing |
| PERDOCEO EDUCATION Corp | Amended registration | PRDO | 1999-03-16 | View filing |
| MKS INC | Amended registration | MKSI | 1999-03-15 | View filing |
| EXTREME NETWORKS INC | Amended registration | EXTR | 1999-03-11 | View filing |
| TREX CO INC | Amended registration | TREX | 1999-03-09 | View filing |
| MKS INC | Amended registration | MKSI | 1999-03-02 | View filing |
| PERDOCEO EDUCATION Corp | Amended registration | PRDO | 1999-03-01 | View filing |
| KORN FERRY | Amended registration | KFY | 1999-02-10 | View filing |
| KORN FERRY | Amended registration | KFY | 1999-02-10 | View filing |
| TREX CO INC | Amended registration | TREX | 1999-02-09 | View filing |
| DXP ENTERPRISES INC | Amended registration | DXPE | 1999-02-08 | View filing |
| CNX Resources Corp | Amended registration | CNX | 1999-02-05 | View filing |
| KORN FERRY | Amended registration | KFY | 1999-02-03 | View filing |