New Positions
5 managers initiated
Top five by reported value
Aterian, Inc. NCM:ATER
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
5 new7 added18 reduced6 exited
Total Institutional Holders
30
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$58.8K
Largest QoQ Increase
BRIDGEWAY CAPITAL MANAGEMENT, LLC
+32,460 sh
Largest QoQ Decrease
VANGUARD GROUP INC
-91,054 sh
New Positions(5)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 32,460 | +32,460 | $22.6K | +$22.6K | — |
| Ground Swell Capital, LLC | 17,065 | +17,065 | $11.9K | +$11.9K | — |
| DRW Securities, LLC | 11,868 | +11,868 | $8.3K | +$8.3K | — |
| IFP Advisors, Inc | 11 | +11 | $8 | +$8 | — |
| TD Waterhouse Canada Inc. | 1 | +1 | $1 | +$1 | — |
Added To(7)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 45,052 | +4,540 | $31.3K | -$11.2K | 11.2% |
| XTX Topco Ltd | 26,135 | +1,197 | $18.2K | -$8.0K | 4.8% |
| RENAISSANCE TECHNOLOGIES LLC | 42,847 | +11,300 | $29.8K | -$3.3K | 35.8% |
| PRUDENTIAL FINANCIAL INC | 23,200 | +4,800 | $16.1K | -$3.2K | 26.1% |
| UBS Group AG | 5,997 | +660 | $4.2K | -$1.4K | 12.4% |
| Tower Research Capital LLC (TRC) | 1,474 | +919 | $1.0K | +$442 | 165.6% |
| ADVISOR GROUP HOLDINGS, INC. | 439 | +216 | $305 | +$92 | 96.9% |
Reduced(18)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 84,615 | -91,054 | $58.8K | -$125.6K | -51.8% |
| BlackRock, Inc. | 72,289 | 0 | $50.3K | -$25.6K | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 59,110 | 0 | $41.1K | -$21.0K | 0.0% |
| JANE STREET GROUP, LLC | 10,600 | -11,882 | $7.4K | -$16.2K | -52.9% |
| STATE STREET CORP | 24,007 | 0 | $16.7K | -$8.5K | 0.0% |
| MORGAN STANLEY | 1 | -4,120 | $1 | -$4.3K | -100.0% |
| NORTHERN TRUST CORP | 10,879 | 0 | $7.6K | -$3.9K | 0.0% |
| JPMORGAN CHASE & CO | 2,784 | 0 | $1.9K | -$987 | 0.0% |
| SIMPLEX TRADING, LLC | 1,258 | -5,539 | $874 | +$867 | -81.5% |
| Apollo Management Holdings, L.P. | 2,276 | 0 | $1.6K | -$807 | 0.0% |
| SBI Securities Co., Ltd. | 311 | 0 | $216 | -$111 | 0.0% |
| CITIGROUP INC | 1 | -94 | $1 | -$99 | -98.9% |
| BANK OF AMERICA CORP /DE/ | 224 | -3 | $155 | -$83 | -1.3% |
| BNP PARIBAS ARBITRAGE, SNC | 73 | 0 | $51 | -$26 | 0.0% |
| PROATHLETE WEALTH MANAGEMENT LLC | 21 | 0 | $14 | -$8 | 0.0% |
| GSA CAPITAL PARTNERS LLP | 18,137 | -1,246 | $13 | -$7 | -6.4% |
| NATIONAL BANK OF CANADA /FI/ | 1 | 0 | $1 | $0 | 0.0% |
| US BANCORP \DE\ | 1 | 0 | $1 | $0 | 0.0% |
Sold Out(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| CITADEL ADVISORS LLC | 0 | -33,165 | $0 | -$34.8K | — |
| WOLVERINE TRADING, LLC | 0 | -10,600 | $0 | -$10.8K | — |
| STANCE CAPITAL LLC | 0 | -36 | $0 | -$38 | — |
| HRT FINANCIAL LP | 0 | -14,891 | $0 | -$15 | — |
| Virtu Financial LLC | 0 | -12,491 | $0 | -$13 | — |
| ORG Wealth Partners, LLC | 0 | -4 | $0 | -$4 | — |
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 | 84,615 | $58.8K | -91,054 | -51.8% |
| BlackRock, Inc. | 72,289 | $50.3K | 0 | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 59,110 | $41.1K | 0 | 0.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 45,052 | $31.3K | +4,540 | 11.2% |
| RENAISSANCE TECHNOLOGIES LLC | 42,847 | $29.8K | +11,300 | 35.8% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 32,460 | $22.6K | +32,460 | — |
| XTX Topco Ltd | 26,135 | $18.2K | +1,197 | 4.8% |
| STATE STREET CORP | 24,007 | $16.7K | 0 | 0.0% |
| PRUDENTIAL FINANCIAL INC | 23,200 | $16.1K | +4,800 | 26.1% |
| Ground Swell Capital, LLC | 17,065 | $11.9K | +17,065 | — |
| DRW Securities, LLC | 11,868 | $8.3K | +11,868 | — |
| NORTHERN TRUST CORP | 10,879 | $7.6K | 0 | 0.0% |
| JANE STREET GROUP, LLC | 10,600 | $7.4K | -11,882 | -52.9% |
| UBS Group AG | 5,997 | $4.2K | +660 | 12.4% |
| JPMORGAN CHASE & CO | 2,784 | $1.9K | 0 | 0.0% |
| Apollo Management Holdings, L.P. | 2,276 | $1.6K | 0 | 0.0% |
| Tower Research Capital LLC (TRC) | 1,474 | $1.0K | +919 | 165.6% |
| SIMPLEX TRADING, LLC | 1,258 | $874 | -5,539 | -81.5% |
| ADVISOR GROUP HOLDINGS, INC. | 439 | $305 | +216 | 96.9% |
| SBI Securities Co., Ltd. | 311 | $216 | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
6 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 ATER 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.