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 14,307 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 |
|---|---|---|---|---|
| NETSCOUT SYSTEMS INC | Amended registration | NTCT | 1999-07-20 | View filing |
| ALLIANCE RESOURCE PARTNERS LP | Amended registration | ARLP | 1999-07-20 | 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 | 1999-07-14 | View filing |
| ENCORE CAPITAL GROUP INC | Priced - final prospectus | ECPG | 1999-07-09 | View filing |
| LENNOX INTERNATIONAL INC | Amended registration | LII | 1999-07-09 | View filing |
| ENCORE CAPITAL GROUP INC | Amended registration | ECPG | 1999-07-08 | View filing |
| ZIFF DAVIS, INC. | Amended registration | ZD | 1999-07-08 | View filing |
| BIOMARIN PHARMACEUTICAL INC | Amended registration | BMRN | 1999-07-06 | View filing |
| ALLIANCE RESOURCE PARTNERS LP | Amended registration | ARLP | 1999-06-30 | View filing |
| ENCORE CAPITAL GROUP INC | Amended registration | ECPG | 1999-06-29 | View filing |
| ZIFF DAVIS, INC. | Amended registration | ZD | 1999-06-24 | View filing |
| HEXCEL CORP /DE/ | Priced - final prospectus | HXL | 1999-06-18 | View filing |
| LENNOX INTERNATIONAL INC | Amended registration | LII | 1999-06-16 | View filing |
| UNITED THERAPEUTICS Corp | Amended registration | UTHR | 1999-06-15 | View filing |
| SBA COMMUNICATIONS CORP | Amended registration | SBAC | 1999-06-15 | View filing |
| BIOMARIN PHARMACEUTICAL INC | Amended registration | BMRN | 1999-06-14 | View filing |
| ENCORE CAPITAL GROUP INC | Amended registration | ECPG | 1999-06-14 | View filing |
| 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 |
| AMDOCS LTD | Amended foreign registration | DOX | 1999-06-07 | View filing |
| F5, INC. | Priced - final prospectus | FFIV | 1999-06-04 | 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 |
| AMDOCS LTD | Amended foreign registration | DOX | 1999-05-21 | View filing |
| UNITED THERAPEUTICS Corp | Amended registration | UTHR | 1999-05-20 | View filing |
| ALLIANCE RESOURCE PARTNERS LP | New registration | ARLP | 1999-05-20 | View filing |
| ESTEE LAUDER COMPANIES INC | Priced - final prospectus | EL | 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 |
| IDT CORP | Priced - final prospectus | IDT | 1999-05-14 | View filing |
| CROWN CASTLE INC. | Priced - final prospectus | CCI | 1999-05-13 | View filing |
| CROWN CASTLE INC. | Priced - final prospectus | CCI | 1999-05-13 | View filing |
| WESCO INTERNATIONAL INC | Priced - final prospectus | WCC | 1999-05-13 | View filing |
| Gildan Activewear Inc. | Amended foreign registration | GIL | 1999-05-10 | 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 |
| AMDOCS LTD | Amended foreign registration | DOX | 1999-05-06 | View filing |
| COSTAR GROUP, INC. | Priced - final prospectus | CSGP | 1999-05-05 | View filing |
| NETSCOUT SYSTEMS INC | Amended registration | NTCT | 1999-05-04 | View filing |
| BIOMARIN PHARMACEUTICAL INC | New registration | BMRN | 1999-05-04 | View filing |
| SONIC AUTOMOTIVE INC | Priced - final prospectus | SAH | 1999-05-03 | View filing |
| WESCO INTERNATIONAL INC | Amended registration | WCC | 1999-05-03 | View filing |
| ENCORE CAPITAL GROUP INC | New registration | ECPG | 1999-04-30 | View filing |
| OFG BANCORP | Priced - final prospectus | OFG | 1999-04-30 | View filing |
| COSTAR GROUP, INC. | Amended registration | CSGP | 1999-04-30 | View filing |