Comparable stake leader
James D. Calaway
SEC ownership of ioneer Ltd
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001896084.
Disclosed value leader
James D. Calaway
Comparable rows
0/31
Latest evidence
02 Jul 2026
- Public ticker
- IONR on Nasdaq, GSCCF on OTC
- Parsed ownership sources
-
3/4/5 and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
James D. Calaway
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
02 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001896084
- Issuer location
- North Sydney, NV
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ioneer Ltd (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
James D. Calaway
Disclosed value leader
James D. Calaway
Comparable rows
0/31
Latest evidence
02 Jul 2026
3/4/5
13F
Highest disclosed value: $277,277,988
31 rows are not safely comparable across share classes.
Showing 1-8 of 31 holder rows.
Quick read
James D. Calaway has the largest disclosed position value at $277.28M.
0 of 31 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens James D. Calaway's linked filing trail.
Disclosed position value
Top 5
James D. Calaway
$277.28M
Benard Rowe
$273.84M
Matthew M. Weaver
$48.08M
Yoshio Nagai
$34.45M
Chad Yeftich
$27.18M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 31 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| James D. Calaway |
3/4/5
Director
|
—
class O/S missing
|
$277,277,988
63,595,869 shares
|
— | 18 Mar 2026 |
| Benard Rowe |
3/4/5
Director
|
—
class O/S missing
|
$273,835,008
62,806,195 shares
|
— | 18 Mar 2026 |
| Matthew M. Weaver |
3/4/5
SVP of Engineering Operations
|
—
class O/S missing
|
$48,080,270
11,299,711 shares
|
— | 02 Jul 2026 |
| Yoshio Nagai |
3/4/5
VP Comm. Sales & Marketing
|
—
class O/S missing
|
$34,446,233
8,095,472 shares
|
— | 01 Jul 2026 |
| Chad Yeftich |
3/4/5
VP Corp Dev & External Affairs
|
—
class O/S missing
|
$27,175,285
6,386,671 shares
|
— | 02 Jul 2026 |
| Alan Davies |
3/4/5
Director
|
—
class O/S missing
|
$25,964,996
6,102,232 shares
|
— | 18 Mar 2026 |
| Kenneth D. Coon |
3/4/5
Vice President Human Resources
|
—
class O/S missing
|
$14,790,333
3,475,989 shares
|
— | 02 Jul 2026 |
| Invesco Ltd. |
13F
Company
|
—
class O/S missing
|
$9,516,750
2,236,604 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 02 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-11 of 11 reporting-owner rows connected to ioneer Ltd. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
James D. Calaway
Net 12M change
$0
Latest report
02 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| James D. Calaway | Director | $277,277,988 | Mixed | 18 Mar 2026 | ||
| Benard Rowe | Director | $273,835,008 | Mixed | 18 Mar 2026 | ||
| Matthew M. Weaver | SVP of Engineering Operations | $48,080,270 | Mixed | 02 Jul 2026 | ||
| Yoshio Nagai | VP Comm. Sales & Marketing | $34,446,233 | Mixed | 01 Jul 2026 | ||
| Chad Yeftich | VP Corp Dev & External Affairs | $27,175,285 | Mixed | 02 Jul 2026 | ||
| Alan Davies | Director | $25,964,996 | Mixed | 18 Mar 2026 | ||
| Kenneth D. Coon | Vice President Human Resources | $14,790,333 | Mixed | 02 Jul 2026 | ||
| Rose Mckinney-James | Director | $4,317,982 | Mixed | 18 Mar 2026 | ||
| Margaret R. Walker | Director | $4,317,895 | Mixed | 18 Mar 2026 | ||
| Timothy Roy Woodall | Director | $4,199,041 | Mixed | 24 Mar 2026 | ||
| April Hashimoto | Chief Financial Officer | Mixed | 18 Mar 2026 |
Recent insider transactions for ioneer Ltd
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kenneth D. Coon | IONR | Ordinary Shares | Sale | -3.17% | -113,899 | 3,475,989 | 02 Jul 2026 | Direct | ||
| Matthew M. Weaver | IONR | Ordinary Shares | Sale | -2.18% | -251,293 | 11,299,711 | 02 Jul 2026 | Direct | ||
| Chad Yeftich | IONR | Ordinary Shares | Sale | -9.96% | -706,781 | 6,386,671 | 02 Jul 2026 | Direct | ||
| Chad Yeftich | IONR | Ordinary Shares | Award | 2.96% | 203,751 | 7,093,452 | 01 Jul 2026 | Direct | ||
| Kenneth D. Coon | IONR | Ordinary Shares | Award | 4.39% | 150,926 | 3,589,888 | 01 Jul 2026 | Direct | ||
| Yoshio Nagai | IONR | Ordinary Shares | Award | 2.02% | 159,982 | 8,095,472 | 01 Jul 2026 | Direct | ||
| Matthew M. Weaver | IONR | Ordinary Shares | Award | 3.51% | 391,277 | 11,551,004 | 01 Jul 2026 | Direct | ||
| Timothy Roy Woodall | IONR | Ordinary Shares | Purchase | 26.2% | 200,000 | 963,083 | 24 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.