Who Just RaisedSan Leandro, CA · Manufacturing · Form D filed Sep 18, 2026
SirenOpt Inc. raised $19.4M
SirenOpt Inc. is a manufacturing company based in San Leandro, California. In a Form D filed with the SEC on September 18, 2026, it reported raising $19,428,895 from 17 investors as part of an offering of up to $32,411,720. The first sale in the offering took place on September 10, 2026.
SirenOpt platforms provide non-destructive, real-time, inline and off-line materials characterization and classification solutions for manufacturers
- 2nd Form D since 2024. Earlier new notices: Jul 12, 2024. All filings on EDGAR
- Still raising. $13M of the $32.4M offering was still unsold at filing.
$29.1M raised since 2020
2 Form D offerings, as reported to the SEC, the first in Jul 12, 2024. Amendments update a round; they aren't counted twice.
| Filed | Sold | Offering size | Investors |
|---|---|---|---|
| Sep 18, 2026 | $19.4M | $32.4M | 17 |
| Jul 12, 2024 | $9.6M | $9.6M | 17 |
Lead score
42 out of 100
filed recently early raise still raising budget to spend website found
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Filing details
- Website
- sirenopt.com
- Amount raised
- $19,428,895
- Offering size
- $32,411,720
- Investors so far
- 17
- First sale
- September 10, 2026
- Securities offered
- Equity, Securities issuable on exercise or conversion
- Exemption claimed
- Rule 506(b)
- Industry
- Manufacturing
- Headquarters
- San Leandro, California
- Incorporated
- Delaware, 2022
- Entity type
- Corporation
Filings
| Filed | Form | Raised | Offering size | Investors | Source |
|---|---|---|---|---|---|
| D (new notice) | $19,428,895 | $32,411,720 | 17 | SEC filing |
Figures come from the company's own filing with the SEC and are shown as reported. How to read a Form D.
Updated · Raises in the week of Sep 14, 2026 · Manufacturing funding in California · September 2026 funding report
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