Ioneer Ltd. - ADRIONR
13F holders, Q4 2025 (December 31)23holders +10
12new positions
2sold out
2famous investors
$4.80avg. 13F price*
At the end of Q4 2025, 23 institutions reported holding Ioneer Ltd. - ADR (IONR) in their 13F filings, up 10 from Q3 2025. 12 opened new positions and 2 sold out. The largest holders were Marshall Wace, LLP ($793K), Morgan Stanley ($292K) and Citadel Advisors ($273K). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Ioneer Ltd. - ADR
- CUSIP
- 46211L101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 12 | $1.7M |
| Exits | 2 | $95K |
All 13F filers, Q3 2025 → Q4 2025: 404,389 shares bought and 43,594 shares sold, net +360,795 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Marshall Wace, LLP | 0.00% | New | 165,231 | $793K |
| Morgan Stanley | 0.00% | Add +534.4% | 60,905 | $292K |
| Citadel Advisors | 0.00% | New | 56,915 | $273K |
| Jane Street Group, LLC | 0.00% | Reduce -25.1% | 40,497 | $194K |
| GK Wealth Management LLC | 0.12% | Reduce -18.6% | 33,775 | $162K |
| Virtu Financial LLC | 0.00% | New | 20,069 | $96K |
| Millennium Management | 0.00% | New | 19,934 | $96K |
| Old Mission Capital LLC | 0.00% | New | 18,270 | $88K |
| HRT Financial LP | 0.00% | New | 17,322 | $83K |
| Pekin Hardy Strauss, Inc. | 0.01% | New | 16,000 | $77K |
| Brookwood Investment Group LLC | 0.01% | New | 11,500 | $55K |
| Susquehanna International Group, LLP | 0.00% | New | 11,309 | $54K |
| XTX Topco Ltd | 0.00% | New | 11,241 | $54K |
| UBS Group AG | 0.00% | Add +784.8% | 2,150 | $10K |
| Marquette Asset Management, LLC | 0.00% | No change | 2,000 | $10K |
| Rhumbline Advisers | 0.00% | New | 1,808 | $9K |
| GAMMA Investing LLC | 0.00% | New | 1,191 | $6K |
| Wells Fargo & Company | 0.00% | No change | 500 | $2K |
| Jones Financial Companies LLLP | 0.00% | Add +655.4% | 423 | $2K |
| Osaic Holdings, Inc. | 0.00% | Reduce -25.0% | 300 | $1K |
| Bogart Wealth, LLC | 0.00% | Add +50.0% | 60 | $288 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -97.5% | 27 | $130 |
| Bessemer Group Inc. | 0.00% | No change | 36 | $0 |
"% of holder's portfolio" is IONR's weight in each manager's 13F, not the share of Ioneer Ltd. - ADR the manager owns.