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Stocks/IMRN/SEC Filings/424B5 Oct 23, 2026

IMRN 424B5: Shelf registration

Immuron Limited

Filed with the SEC on Oct 23, 2026 · accession 0001213900-26-112198

IMRN filed a 424B5 (prospectus (offering)) with the SEC on Oct 23, 2026. Immuron Limited filed a prospectus supplement to reduce the maximum aggregate offering price under its at-the-market (ATM) offering agreement with H.C. The stock moved +0.4% by the first close after the filing.

Summary of the filing

Immuron Limited filed a prospectus supplement to reduce the maximum aggregate offering price under its at-the-market (ATM) offering agreement with H.C. Wainwright & Co. to approximately $2,006,769, reflecting the remaining amount available under the one-third public float limitation of General Instruction I.B.5 of Form F-3.

For details, click here →How to read a 424B5 →

Key details

Maximum aggregate offering price under ATM agreement$2.0M
Securities sold in prior 12 months under Form F-3 I.B.5$2.8M
Aggregate market value of non-affiliate held ordinary shares$14.6M
Maximum allowed under one-third public float limit$4.9M
Last reported ADS price on Nasdaq$1
IssuerImmuron Limited
Sales agent / underwriterH.C. Wainwright & Co., LLC

How IMRN stock reacted

Close before

$0.95

Oct 22, 2026

First close after

+0.44%

$0.95

5 trading days

-4.67%

$0.91

Since filing

-7.30%

$0.88

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Frequently asked questions

What did IMRN file with the SEC on Oct 23, 2026?

IMRN filed a 424B5 (Shelf registration). Immuron Limited filed a prospectus supplement to reduce the maximum aggregate offering price under its at-the-market (ATM) offering agreement with H.C. Wainwright & Co. to approximately $2,006,769, reflecting the remaining amount available under the one-third public float limitation of General Instruction I.B.5 of Form F-3.

What does a shelf registration mean for IMRN 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 IMRN stock react to this filing?

IMRN closed at $0.95 before the filing and $0.95 on Oct 23, 2026 (+0.44%). Five trading days later: $0.91 (-4.67%).

Other IMRN SEC filings

  • 6-K · Material agreementNov 10, 2026
  • 6-K · SEC filingOct 28, 2026
  • 6-K · SEC filingOct 27, 2026
  • 6-K · Shelf registrationOct 23, 2026
  • 6-K · SEC filingOct 22, 2026
  • 6-K · SEC filingOct 16, 2026
  • 6-K · SEC filingOct 13, 2026
  • 20-F · SEC filingSep 24, 2026
  • 6-K · SEC filingSep 24, 2026
  • 6-K · SEC filingSep 22, 2026

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Source: SEC EDGAR filing 0001213900-26-112198. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.