IMRN · Immuron Ltd
Market Cap
$9.28M
Shares
8.07M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 6
Total Value: $83,035
Total Shares: 78,337
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 6 13F filers · Δ vs Mar 31, 2026Top Holder
55.0%
+19.0 pts
Top 5
99.5%
+5.2 pts
Top 10
100.0%
0.0 pts
HHI
3,858
Highly concentrated+1,606
Quarterly Activity
vs Mar 31, 2026
New
2
Increased
2
Decreased
1
Sold Out
3
Unchanged
1
Holder count:
-1
Institutional value:
+26.3%
Shares held:
-7.7%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | +29,319 | 43,123 | |
| Mega BNP PARIBAS ARBITRAGE, SA | +600 | 5,200 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega MORGAN STANLEY | −28,874 | 1,700 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large HRT FINANCIAL LP | 20,584 | $21,819 | |
| Mega UBS Group AG | 363 | $383 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid XTX Topco Ltd | 17,383 | $13,471 | |
| Small TWO SIGMA SECURITIES, LLC | 10,906 | $8,452 | |
| Mega BlackRock, Inc. | 225 | $174 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega CITADEL ADVISORS LLC | $45,710 | 55.05% | 43,123 | Shares | 2026-08-14 | |
| Large HRT FINANCIAL LP | $21,819 | 26.28% | 20,584 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS | $7,809 | 9.40% | 7,367 | Shares | 2026-08-12 | |
| Mega BNP PARIBAS ARBITRAGE, SA | $5,512 | 6.64% | 5,200 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY | $1,802 | 2.17% | 1,700 | Shares | 2026-08-13 | |
| Mega UBS Group AG | $383 | 0.46% | 363 | Shares | 2026-08-13 |