New Positions
12 managers initiated
Top five by reported value
- MARSHALL WACE, LLP$793.1K
- CITADEL ADVISORS LLC$273.2K
- MILLENNIUM MANAGEMENT LLC$95.7K
- OLD MISSION CAPITAL LLC$87.7K
- Pekin Hardy Strauss, Inc.$76.8K
ioneer Ltd PNK:GSCCF
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
12 new4 added7 reduced2 exited
Total Institutional Holders
23
as of 2025-12-31
Top Holder
MARSHALL WACE, LLP
$793.1K
Largest QoQ Increase
MARSHALL WACE, LLP
+165,231 sh
Largest QoQ Decrease
JANE STREET GROUP, LLC
-13,545 sh
New Positions(12)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MARSHALL WACE, LLP | 165,231 | +165,231 | $793.1K | +$793.1K | — |
| CITADEL ADVISORS LLC | 56,915 | +56,915 | $273.2K | +$273.2K | — |
| MILLENNIUM MANAGEMENT LLC | 19,934 | +19,934 | $95.7K | +$95.7K | — |
| OLD MISSION CAPITAL LLC | 18,270 | +18,270 | $87.7K | +$87.7K | — |
| Pekin Hardy Strauss, Inc. | 16,000 | +16,000 | $76.8K | +$76.8K | — |
| Brookwood Investment Group LLC | 11,500 | +11,500 | $55.2K | +$55.2K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 11,309 | +11,309 | $54.3K | +$54.3K | — |
| XTX Topco Ltd | 11,241 | +11,241 | $54.0K | +$54.0K | — |
| RHUMBLINE ADVISERS | 1,808 | +1,808 | $8.7K | +$8.7K | — |
| GAMMA Investing LLC | 1,191 | +1,191 | $5.7K | +$5.7K | — |
| Virtu Financial LLC | 20,069 | +20,069 | $96 | +$96 | — |
| HRT FINANCIAL LP | 17,322 | +17,322 | $83 | +$83 | — |
Added To(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MORGAN STANLEY | 60,905 | +51,305 | $292.3K | +$249.4K | 534.4% |
| UBS Group AG | 2,150 | +1,907 | $10.3K | +$9.2K | 784.8% |
| JONES FINANCIAL COMPANIES LLLP | 423 | +367 | $2.0K | +$1.8K | 655.4% |
| Bogart Wealth, LLC | 60 | +20 | $288 | +$109 | 50.0% |
Reduced(7)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 40,497 | -13,545 | $194.4K | -$47.2K | -25.1% |
| GK Wealth Management LLC | 33,775 | -7,725 | $162.1K | -$23.4K | -18.6% |
| EverSource Wealth Advisors, LLC | 27 | -1,034 | $130 | -$4.6K | -97.5% |
| Marquette Asset Management, LLC | 2,000 | 0 | $9.6K | +$660 | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 300 | -100 | $1.4K | +$180 | -25.0% |
| WELLS FARGO & COMPANY/MN | 500 | 0 | $2.4K | +$165 | 0.0% |
| BESSEMER GROUP INC | 36 | 0 | $0 | $0 | 0.0% |
Sold Out(2)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| LPL Financial LLC | 0 | -11,190 | $0 | -$50.0K | — |
| Mariner, LLC | 0 | -10,000 | $0 | -$44.7K | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| MARSHALL WACE, LLP | 165,231 | $793.1K | +165,231 | — |
| MORGAN STANLEY | 60,905 | $292.3K | +51,305 | 534.4% |
| CITADEL ADVISORS LLC | 56,915 | $273.2K | +56,915 | — |
| JANE STREET GROUP, LLC | 40,497 | $194.4K | -13,545 | -25.1% |
| GK Wealth Management LLC | 33,775 | $162.1K | -7,725 | -18.6% |
| MILLENNIUM MANAGEMENT LLC | 19,934 | $95.7K | +19,934 | — |
| OLD MISSION CAPITAL LLC | 18,270 | $87.7K | +18,270 | — |
| Pekin Hardy Strauss, Inc. | 16,000 | $76.8K | +16,000 | — |
| Brookwood Investment Group LLC | 11,500 | $55.2K | +11,500 | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 11,309 | $54.3K | +11,309 | — |
| XTX Topco Ltd | 11,241 | $54.0K | +11,241 | — |
| UBS Group AG | 2,150 | $10.3K | +1,907 | 784.8% |
| Marquette Asset Management, LLC | 2,000 | $9.6K | 0 | 0.0% |
| RHUMBLINE ADVISERS | 1,808 | $8.7K | +1,808 | — |
| GAMMA Investing LLC | 1,191 | $5.7K | +1,191 | — |
| WELLS FARGO & COMPANY/MN | 500 | $2.4K | 0 | 0.0% |
| JONES FINANCIAL COMPANIES LLLP | 423 | $2.0K | +367 | 655.4% |
| ADVISOR GROUP HOLDINGS, INC. | 300 | $1.4K | -100 | -25.0% |
| Bogart Wealth, LLC | 60 | $288 | +20 | 50.0% |
| EverSource Wealth Advisors, LLC | 27 | $130 | -1,034 | -97.5% |
New & Closed Positions this quarter
Closed Positions
2 managers exited
Top five by prior-quarter value
- LPL Financial LLC$50.0K
- Mariner, LLC$44.7K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for GSCCF against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.