New Positions
1 managers initiated
Top five by reported value
- XTX Topco Ltd$9.7K
New Concept Energy Inc NYSE MKT LLC:GBR
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
1 new4 added4 reduced3 exited
Total Institutional Holders
9
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$35.9K
Largest QoQ Increase
XTX Topco Ltd
+12,972 sh
Largest QoQ Decrease
TWO SIGMA SECURITIES, LLC
-20,750 sh
New Positions(1)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| XTX Topco Ltd | 12,972 | +12,972 | $9.7K | +$9.7K | — |
Added To(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 39,353 | +1,902 | $29.4K | -$8.1K | 5.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 33,442 | +1,541 | $25.0K | -$7.0K | 4.8% |
| UBS Group AG | 362 | +361 | $270 | +$269 | 36100.0% |
| Tower Research Capital LLC (TRC) | 4,102 | +945 | $3.1K | -$101 | 29.9% |
Reduced(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 48,067 | 0 | $35.9K | -$12.3K | 0.0% |
| CITADEL ADVISORS LLC | 30,239 | -3,929 | $22.6K | -$11.7K | -11.5% |
| STATE STREET CORP | 23,534 | 0 | $17.6K | -$6.0K | 0.0% |
| BANK OF AMERICA CORP /DE/ | 48 | -1,221 | $35 | -$1.2K | -96.2% |
Sold Out(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| TWO SIGMA SECURITIES, LLC | 0 | -20,750 | $0 | -$20.8K | — |
| CITIGROUP INC | 0 | -30 | $0 | -$30 | — |
| Virtu Financial LLC | 0 | -14,389 | $0 | -$14 | — |
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 % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 48,067 | $35.9K | 0 | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 39,353 | $29.4K | +1,902 | 5.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 33,442 | $25.0K | +1,541 | 4.8% |
| CITADEL ADVISORS LLC | 30,239 | $22.6K | -3,929 | -11.5% |
| STATE STREET CORP | 23,534 | $17.6K | 0 | 0.0% |
| XTX Topco Ltd | 12,972 | $9.7K | +12,972 | — |
| Tower Research Capital LLC (TRC) | 4,102 | $3.1K | +945 | 29.9% |
| UBS Group AG | 362 | $270 | +361 | 36100.0% |
| BANK OF AMERICA CORP /DE/ | 48 | $35 | -1,221 | -96.2% |
New & Closed Positions this quarter
Closed Positions
3 managers exited
Top five by prior-quarter value
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 GBR 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.