Immuron Limited (IMRN) Ownership
IMRN ownership summary
as of October 17, 2026- Institutions
- 1.0% of shares outstanding
- Insiders
- 0.00% of shares outstanding
- Shares outstanding
- 8.1M
- Float
- 6.9M shares available to trade
- Short interest
- 1.20% 62K shares short
- Days to cover
- 0.01 short interest down 46.6% vs prior month
- Institutions 0.97%
- Other investors 99.03%
IMRN top institutional holders
12 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Citadel Advisors Llc | 0.53% | 43K | $42,347 | +29,319 (+212.4%) | June 30, 2026 |
| 2 | HRT FINANCIAL LLC | 0.26% | 21K | $20,213 | +20,584 (0.0%) | June 30, 2026 |
| 3 | Rhumbline Advisers | 0.09% | 7,367 | $7,234 | — | June 30, 2026 |
| 4 | BNP Paribas Arbitrage, SA | 0.06% | 5,200 | $5,106 | +600 (+13.0%) | June 30, 2026 |
| 5 | Morgan Stanley - Brokerage Accounts | 0.02% | 1,700 | $1,669 | −28,874 (−94.4%) | June 30, 2026 |
| 6 | UBS Group AG | <0.01% | 363 | $356 | +363 (0.0%) | June 30, 2026 |
| 7 | BlackRock Inc | 0.00% | — | — | −225 (−100.0%) | June 30, 2026 |
| 8 | Jane Street Group LLC | 0.00% | — | — | −22,458 (−100.0%) | March 31, 2026 |
| 9 | SBI Securities Co Ltd | 0.00% | — | — | −10 (−100.0%) | March 31, 2026 |
| 10 | Virtu Financial LLC | 0.00% | — | — | −11,370 (−100.0%) | March 31, 2026 |
| 11 | XTX Topco Ltd | 0.00% | — | — | −17,383 (−100.0%) | June 30, 2026 |
| 12 | TWO SIGMA SECURITIES, LLC | 0.00% | — | — | −10,906 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 12, 4 holders added 51K shares and 7 cut 91K.
IMRN shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IMRN
Institutional investors own 1.0% of Immuron's shares and insiders 0.00%. The largest holder is Citadel Advisors Llc with 0.53% of the shares (43K), as of June 30, 2026. Among the top 12 institutions, 4 added shares and 7 reduced their stake in the latest filings. Short interest is 1.20% of the float, or 0.01 days of average trading volume. The share count rose 265.8% since 2014.
Related: IMRN analyst forecast. See the IMRN stock overview for the latest quote and news.
IMRN ownership FAQ
Who owns the most Immuron stock?
The largest shareholders of Immuron are Citadel Advisors Llc (0.53%), HRT FINANCIAL LLC (0.26%), Rhumbline Advisers (0.09%), BNP Paribas Arbitrage, SA (0.06%), Morgan Stanley - Brokerage Accounts (0.02%).
What percentage of Immuron is owned by institutions?
Institutions hold 1.0% of Immuron's shares outstanding; insiders hold 0.00%.
What is Immuron's short interest?
62K shares of Immuron were sold short, 1.20% of the float; at the average daily volume it would take 0.01 days to cover.
How many shares of Immuron are outstanding?
Immuron has 8.1M shares outstanding, of which 6.9M are in the public float.