Form S-1: registration statement.
Form S-1 is the registration statement a company files to register securities with the SEC, most visibly before an IPO. It contains the prospectus: business description, risk factors, use of proceeds, financial statements and the offering terms.
- Filed by
- Companies registering securities under the Securities Act of 1933
- Deadline
- No filing deadline
- Observed filings
- 21
- Volume rank
- #51 of 162 forms
Who files Form S-1
Companies registering securities under the Securities Act of 1933, most often for an initial public offering.
When it is due
No filing deadline. The registration must be declared effective before the securities are sold.
What it contains
- The preliminary prospectus
- Audited financial statements
- Use of proceeds and dilution
- Underwriting arrangements
Recent Form S-1 filings we observed
| Filed | Company | Form | Accession |
|---|---|---|---|
| 2026-11-09 | Blue Laser Fusion, Inc. | S-1 | 0001193125-26-453492 |
| 2026-11-09 | ConnectM Technology Solutions, Inc. | S-1/A | 0001104659-26-124071 |
| 2026-11-09 | Rezera Inc. | S-1/A | 0001104659-26-124074 |
| 2026-11-09 | Research Alliance Corp V | S-1 | 0001193125-26-452284 |
| 2026-11-06 | EXOZYMES INC. | S-1 | 0001493152-26-050521 |
| 2026-11-06 | Simwon America Corp. | S-1/A | 0001213900-26-116984 |
| 2026-11-06 | Hifortune Holdings Inc | S-1 | 0001185185-26-005243 |
| 2026-11-06 | Alopexx, Inc. | S-1/A | 0001213900-26-116942 |
| 2026-11-06 | AParadise III Acquisition Corp. | S-1 | 0001213900-26-116922 |
| 2026-11-06 | SeeQC, Inc. | S-1/A | 0001213900-26-116829 |
| 2026-10-30 | Capstone Holding Corp. | S-1 | 0001437749-26-034247 |
| 2026-10-30 | UCSB Acquisition Corp. | S-1 | 0001213900-26-114455 |
Variants in the sample: S-1 (11), S-1/A (10).
Get Form S-1 filings through the API
Filter filing metadata by exact form type. Amendments carry their own form label (for example S-1/A), so request them separately.
curl "https://sec-api.dev/api/v1/search?query=%22initial%20public%20offering%22&form=S-1&limit=5" \
-H "Authorization: Bearer $SEC_API_KEY"API reference · Free key, 1,000 requests a month · SEC source for this form
Questions
What is SEC Form S-1?
Form S-1 is the registration statement a company files to register securities with the SEC, most visibly before an IPO. It contains the prospectus: business description, risk factors, use of proceeds, financial statements and the offering terms.
When is Form S-1 due?
No filing deadline. The registration must be declared effective before the securities are sold.
Who files Form S-1?
Companies registering securities under the Securities Act of 1933, most often for an initial public offering.
Does an S-1 mean the IPO happened?
No. An S-1 and its amendments (S-1/A) can be filed for months, and some offerings are withdrawn. Pricing is reported in a later 424(b) prospectus.
Related forms
Plain-text version for agents and LLMs: /sec-forms/s-1.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.