ioneer Ltd - Ordinary Shares, no par value (IONR)
CUSIP: 46211L101
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Ordinary Shares, no par value
- Total 13F shares
- 100,662
- Share change
- +52,136
- Total reported value
- $428,509
- Price per share
- $4.26
- Number of holders
- 4
- Value change
- +$197,356
- Number of buys
- 2
- Number of sells
- 2
Quarterly Holders Quick Answers
What is CUSIP 46211L101?
CUSIP 46211L101 identifies IONR - ioneer Ltd - Ordinary Shares, no par value in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
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These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
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- Latest 13F filings for newly reported positions across managers.
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Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Previous quarter: Q4 2025
Recent filing periods for CUSIP 46211L101:
Top shareholders of IONR - ioneer Ltd - Ordinary Shares, no par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| James D. Calaway |
3/4/5
|
Director |
—
class O/S missing
|
63,595,869
|
$277,277,988 | — | 18 Mar 2026 | |
| Benard Rowe |
3/4/5
|
Director |
—
class O/S missing
|
62,806,195
|
$273,835,008 | — | 18 Mar 2026 | |
| Matthew M. Weaver |
3/4/5
|
SVP of Engineering Operations |
—
class O/S missing
|
11,159,727
|
$48,656,409 | — | 18 Mar 2026 | |
| Yoshio Nagai |
3/4/5
|
VP Comm. Sales & Marketing |
—
class O/S missing
|
7,935,490
|
$34,598,736 | — | 18 Mar 2026 | |
| Chad Yeftich |
3/4/5
|
VP Corp Dev & External Affairs |
—
class O/S missing
|
6,889,701
|
$30,039,096 | — | 18 Mar 2026 | |
| Alan Davies |
3/4/5
|
Director |
—
class O/S missing
|
6,102,232
|
$25,964,996 | — | 18 Mar 2026 | |
| Kenneth D. Coon |
3/4/5
|
Vice President Human Resources |
—
class O/S missing
|
3,438,962
|
$14,993,874 | — | 18 Mar 2026 | |
| Rose McKinney-James |
3/4/5
|
Director |
—
class O/S missing
|
990,363
|
$4,317,982 | — | 18 Mar 2026 | |
| Margaret R. Walker |
3/4/5
|
Director |
—
class O/S missing
|
990,343
|
$4,317,895 | — | 18 Mar 2026 | |
| Timothy Roy Woodall |
3/4/5
|
Director |
—
class O/S missing
|
963,083
|
$4,199,041 | — | 24 Mar 2026 | |
| MARSHALL WACE, LLP |
13F
|
Company |
—
class O/S missing
|
165,231
|
$793,109 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
60,905
|
$292,344 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
—
class O/S missing
|
56,915
|
$273,192 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
—
class O/S missing
|
40,497
|
$194,385 | — | 31 Dec 2025 | |
| GK Wealth Management LLC |
13F
|
Company |
—
class O/S missing
|
33,775
|
$162,120 | — | 31 Dec 2025 | |
| Virtu Financial LLC |
13F
|
Company |
—
class O/S missing
|
20,069
|
$96,000 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
19,934
|
$95,683 | — | 31 Dec 2025 | |
| OLD MISSION CAPITAL LLC |
13F
|
Company |
—
class O/S missing
|
18,270
|
$87,696 | — | 31 Dec 2025 | |
| HRT FINANCIAL LP |
13F
|
Company |
—
class O/S missing
|
17,322
|
$83,000 | — | 31 Dec 2025 | |
| Pekin Hardy Strauss, Inc. |
13F
|
Company |
—
class O/S missing
|
16,000
|
$76,800 | — | 31 Dec 2025 | |
| Brookwood Investment Group LLC |
13F
|
Company |
—
class O/S missing
|
11,500
|
$55,200 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
—
class O/S missing
|
11,309
|
$54,283 | — | 31 Dec 2025 | |
| XTX Topco Ltd |
13F
|
Company |
—
class O/S missing
|
11,241
|
$53,957 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
—
class O/S missing
|
2,150
|
$10,320 | — | 31 Dec 2025 | |
| Marquette Asset Management, LLC |
13F
|
Company |
—
class O/S missing
|
2,000
|
$9,600 | — | 31 Dec 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
—
class O/S missing
|
1,808
|
$8,677 | — | 31 Dec 2025 | |
| GAMMA Investing LLC |
13F
|
Company |
—
class O/S missing
|
1,191
|
$5,717 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
—
class O/S missing
|
500
|
$2,400 | — | 31 Dec 2025 | |
| JONES FINANCIAL COMPANIES LLLP |
13F
|
Company |
—
class O/S missing
|
423
|
$2,030 | — | 31 Dec 2025 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
—
class O/S missing
|
300
|
$1,440 | — | 31 Dec 2025 | |
| Bogart Wealth, LLC |
13F
|
Company |
—
class O/S missing
|
60
|
$288 | — | 31 Dec 2025 | |
| EverSource Wealth Advisors, LLC |
13F
|
Company |
—
class O/S missing
|
27
|
$130 | — | 31 Dec 2025 |
Institutional Holders of ioneer Ltd - Ordinary Shares, no par value (IONR) as of Q1 2026
As of 31 Mar 2026,
ioneer Ltd - Ordinary Shares, no par value (IONR) was held by
4 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
100,662 shares.
The largest 4 holders included
Cambridge Investment Research Advisors, Inc., GAMMA Investing LLC, Marquette Asset Management, LLC, and Bogart Wealth, LLC.
This page lists
4
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
22
Q1 2026 holders
4
Holder diff
-18
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.