Form S-1 registration statements
Every Form S-1 registration statement and amendment since 1994: IPOs, follow on offerings and resale registrations, with offering terms as JSON.
curl -H "Authorization: Bearer $SECFEED_KEY" \ "https://secfeedapi.com/v1/filings?query=formType:%22S-1%22%20AND%20filedAt:%5B2026-01-01%20TO%202026-12-31%5D&size=2"
import os, requests
r = requests.get(
"https://secfeedapi.com/v1/filings",
params={'query': 'formType:"S-1" AND filedAt:[2026-01-01 TO 2026-12-31]', 'size': '2'},
headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
)
print(r.json())What is S-1?
Form S-1 is the general registration statement under the Securities Act of 1933. Companies going public file it for their IPO, and companies not eligible for the short form S-3 use it for later offerings and resale registrations.
An S-1 contains the full prospectus: business, risk factors, use of proceeds, dilution, MD&A, management, principal shareholders and audited financials. The amendments (S-1/A) show the deal taking shape, including the price range, and S-1MEF adds shares at pricing.
Domestic companies registering securities under the Securities Act, including first time issuers and companies not eligible for Form S-3.
Before the offering. Emerging growth companies may submit drafts confidentially (DRS) and must file publicly at least 15 days before the roadshow.
Filings per year
Every S-1 filing on EDGAR, counted from the SecFeed index, amendments included. Updated daily.
What is inside
| Section | Contents |
|---|---|
| Prospectus summary | Business overview, the offering and summary financial data. |
| Risk factors | Risks of the business and of the offering. |
| Use of proceeds and dilution | What the money is for and the dilution to new investors. |
| MD&A | Discussion of results, liquidity and capital resources. |
| Management and compensation | Officers, directors and executive pay. |
| Principal and selling stockholders | Who owns what before and after the offering. |
| Underwriting | Underwriters, discounts, lockups and the over allotment option. |
Get S-1 data with SecFeed
Search the filings with formType:"S-1" AND filedAt:[2026-01-01 TO 2026-12-31], read any document as text or PDF, and use these APIs for structured data:
IPO and follow-on registration statements and final prospectuses with offering terms: shares, price, proceeds, ticker, exchange and underwriters.
EDGAR Filing Query APISearch every SEC EDGAR filing since 1993 with Lucene-style queries over ticker, CIK, form type, filing date, company, SIC and 8-K items.
Full-Text Search APISearch every word of every EDGAR filing and exhibit since 2001. Exact phrases, form type, CIK and date filters, results as JSON.
Latest S-1 filings
| Company | Form | Filed | |
|---|---|---|---|
| Patriot Mobile Inc. | S-1 | 2026-10-09 | EDGAR ↗ |
| Aspen Neuroscience, Inc. | S-1 | 2026-10-09 | EDGAR ↗ |
| Bambusa Therapeutics, Inc. | S-1 | 2026-10-09 | EDGAR ↗ |
| SPECIFICITY, INC. | S-1 | 2026-10-09 | EDGAR ↗ |
| Simwon America Corp. | S-1 | 2026-10-09 | EDGAR ↗ |
| GT Biopharma, Inc. | S-1 | 2026-10-09 | EDGAR ↗ |
| BIO KEY INTERNATIONAL INC | S-1 | 2026-10-09 | EDGAR ↗ |
| CITY THERAPEUTICS, INC. | S-1/A | 2026-10-09 | EDGAR ↗ |
Use cases
- Track the IPO pipeline from first public filing to pricing
- Extract risk factors and business descriptions of new issuers
- Analyze underwriter league tables
- Compare price range changes across S-1 amendments
Tutorials
Turn any EDGAR filing search into a CSV file for Excel, Google Sheets or pandas, using the /v1/filings/csv endpoint.
OfferingsTrack IPO pricing from 424B4 prospectusesGet final IPO terms from 424B4 prospectuses: shares offered, price, ticker, exchange, proceeds and underwriters, as JSON.
SetupLucene query syntax for SEC filing searchEvery field and operator the SecFeed filing search supports: ticker, cik, formType, filedAt ranges, sic, lists, AND, OR and NOT, with real results.
Related forms
Every 424B4 final prospectus since 1994: the priced IPO and offering prospectus with shares sold, price per share, proceeds and underwriters.
F-1Foreign registrationEvery Form F-1 since 1996: IPO and offering registrations by foreign private issuers listing shares or ADRs in the United States.
DRSDraft registrationsDraft registration statements (DRS) submitted confidentially before IPOs and offerings, made public once the company files publicly.
S-3Shelf registrationsEvery Form S-3 and automatic shelf S-3ASR since 1994: shelf registrations by seasoned issuers for future debt and equity offerings.
FAQ
What is the difference between S-1 and S-3?
S-1 is the long form for any issuer, including IPOs. S-3 is a short form for seasoned issuers that can incorporate their Exchange Act reports by reference.
What is an S-1/A?
An amendment to the registration statement, filed in response to SEC comments or to add the price range and final details.
Every S-1 filing, one API call away
500 free calls a month. JSON, CSV, PDF and a Python SDK.