OSS 424B5: Shelf registration
One Stop Systems, Inc.
Filed with the SEC on · accession 0001193125-26-435254
OSS filed a 424B5 (prospectus (offering)) with the SEC on Oct 28, 2026. The final terms of an offering of shares or bonds. The stock moved -7.5% by the first close after the filing.
Summary of the filing
One Stop Systems, Inc. entered into an Equity Distribution Agreement with Piper Sandler & Co. to sell up to $50,000,000 of common stock through an at-the-market offering under its existing shelf registration statement.
Key details
How OSS stock reacted
Close before
$6.76
Oct 27, 2026
First close after
-7.54%
$6.25
5 trading days
-27.51%
$4.90
Since filing
-36.24%
$4.31
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Click hereFrequently asked questions
What did OSS file with the SEC on Oct 28, 2026?
OSS filed a 424B5 (Shelf registration). One Stop Systems, Inc. entered into an Equity Distribution Agreement with Piper Sandler & Co. to sell up to $50,000,000 of common stock through an at-the-market offering under its existing shelf registration statement.
What does a shelf registration mean for OSS stock?
New shares dilute existing holders and are often sold at a discount to the market price.
How do I read a 424B5?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did OSS stock react to this filing?
OSS closed at $6.76 before the filing and $6.25 on Oct 28, 2026 (-7.54%). Five trading days later: $4.90 (-27.51%).
Other OSS SEC filings
- 8-K · SEC filingOct 28, 2026
- 8-K · Shelf registrationOct 28, 2026
- 10-Q · SEC filingOct 28, 2026
- SCHEDULE 13G/A · SEC filingOct 9, 2026
- EFFECT · SEC filingSep 2, 2026
- S-3 · Shelf registrationAug 28, 2026
- S-3 · Shelf registrationAug 24, 2026
- 8-K · Executive departureAug 5, 2026
- 10-Q · SEC filingAug 5, 2026
- 8-K · SEC filingMay 19, 2026
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