New Positions
4 managers initiated
Top five by reported value
IRIDEX Corp NASDAQ NMS - GLOBAL MARKET:IRIX
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
4 new3 added15 reduced4 exited
Total Institutional Holders
22
as of 2025-12-31
Top Holder
PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE
$1.1M
Largest QoQ Increase
WEBER CAPITAL MANAGEMENT LLC /ADV
+259,558 sh
Largest QoQ Decrease
AMH Equity Ltd
-184,230 sh
New Positions(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| WEBER CAPITAL MANAGEMENT LLC /ADV | 259,558 | +259,558 | $295.9K | +$295.9K | — |
| UNITED CAPITAL FINANCIAL ADVISERS, LLC | 65,529 | +65,529 | $74.7K | +$74.7K | — |
| THOMPSON DAVIS & CO., INC. | 28,500 | +28,500 | $32.5K | +$32.5K | — |
| Diversify Advisory Services, LLC | 19,134 | +19,134 | $27.0K | +$27.0K | — |
Added To(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 31,758 | +15,377 | $36.2K | +$17.5K | 93.9% |
| XTX Topco Ltd | 28,494 | +2,094 | $32.5K | +$2.1K | 7.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 135,208 | +2,149 | $154.2K | +$1.1K | 1.6% |
Reduced(15)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| CITADEL ADVISORS LLC | 34,395 | -75,078 | $39.2K | -$86.7K | -68.6% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 24,487 | -31,983 | $27.9K | -$37.0K | -56.6% |
| RENAISSANCE TECHNOLOGIES LLC | 371,560 | -17,500 | $423.6K | -$20.1K | -4.5% |
| GOLDMAN SACHS GROUP INC | 41,385 | -6,408 | $47.2K | -$7.3K | -13.4% |
| VANGUARD GROUP INC | 578,711 | 0 | $659.7K | -$5.8K | 0.0% |
| NORTHERN TRUST CORP | 21,308 | -1,951 | $24.3K | -$2.2K | -8.4% |
| SIMPLEX TRADING, LLC | 580 | -179 | $661 | +$661 | -23.6% |
| BANK OF AMERICA CORP /DE/ | 127 | -495 | $144 | -$565 | -79.6% |
| STATE STREET CORP | 44,718 | 0 | $51.0K | -$447 | 0.0% |
| PERKINS CAPITAL MANAGEMENT INC | 41,300 | 0 | $47.1K | -$21 | 0.0% |
| Bank of New York Mellon Corp | 31,540 | 0 | $36.0K | -$16 | 0.0% |
| BlackRock, Inc. | 20,260 | 0 | $23.1K | -$11 | 0.0% |
| GROUP ONE TRADING, L.P. | 1,100 | 0 | $1.3K | -$11 | 0.0% |
| HighTower Advisors, LLC | 10,000 | 0 | $11.4K | -$5 | 0.0% |
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE | 1,000,000 | 0 | $1.1M | $0 | 0.0% |
Sold Out(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| AMH Equity Ltd | 0 | -184,230 | $0 | -$210.1K | — |
| Apexium Financial, LP | 0 | -100,529 | $0 | -$115.6K | — |
| Centiva Capital, LP | 0 | -18,768 | $0 | -$21.6K | — |
| Tower Research Capital LLC (TRC) | 0 | -501 | $0 | -$571 | — |
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 % |
|---|---|---|---|---|
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE | 1,000,000 | $1.1M | 0 | 0.0% |
| VANGUARD GROUP INC | 578,711 | $659.7K | 0 | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 371,560 | $423.6K | -17,500 | -4.5% |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 259,558 | $295.9K | +259,558 | — |
| GEODE CAPITAL MANAGEMENT, LLC | 135,208 | $154.2K | +2,149 | 1.6% |
| UNITED CAPITAL FINANCIAL ADVISERS, LLC | 65,529 | $74.7K | +65,529 | — |
| STATE STREET CORP | 44,718 | $51.0K | 0 | 0.0% |
| GOLDMAN SACHS GROUP INC | 41,385 | $47.2K | -6,408 | -13.4% |
| PERKINS CAPITAL MANAGEMENT INC | 41,300 | $47.1K | 0 | 0.0% |
| CITADEL ADVISORS LLC | 34,395 | $39.2K | -75,078 | -68.6% |
| JANE STREET GROUP, LLC | 31,758 | $36.2K | +15,377 | 93.9% |
| Bank of New York Mellon Corp | 31,540 | $36.0K | 0 | 0.0% |
| THOMPSON DAVIS & CO., INC. | 28,500 | $32.5K | +28,500 | — |
| XTX Topco Ltd | 28,494 | $32.5K | +2,094 | 7.9% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 24,487 | $27.9K | -31,983 | -56.6% |
| Diversify Advisory Services, LLC | 19,134 | $27.0K | +19,134 | — |
| NORTHERN TRUST CORP | 21,308 | $24.3K | -1,951 | -8.4% |
| BlackRock, Inc. | 20,260 | $23.1K | 0 | 0.0% |
| HighTower Advisors, LLC | 10,000 | $11.4K | 0 | 0.0% |
| GROUP ONE TRADING, L.P. | 1,100 | $1.3K | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
4 managers exited
Top five by prior-quarter value
- AMH Equity Ltd$210.1K
- Apexium Financial, LP$115.6K
- Centiva Capital, LP$21.6K
- Tower Research Capital LLC (TRC)$571
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 IRIX 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.