28 institutions reported holding $2.9M of IRIDEX CORP (IRIX) in SEC 13F filings for 2026-03-31. Largest institutional holders: PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE ($1.0M), VANGUARD CAPITAL MANAGEMENT LLC ($519,739), RENAISSANCE TECHNOLOGIES LLC ($400,593), WEBER CAPITAL MANAGEMENT LLC /ADV ($262,154), GEODE CAPITAL MANAGEMENT, LLC ($161,796). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE | $1.0M | 1.0M | Hold |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $519,739 | 514,593 | New |
| 3 | RENAISSANCE TECHNOLOGIES LLC | $400,593 | 396,627 | Added |
| 4 | WEBER CAPITAL MANAGEMENT LLC /ADV | $262,154 | 259,558 | Hold |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $161,796 | 160,159 | Added |
| 6 | CITADEL ADVISORS LLC | $61,460 | 60,851 | Added |
| 7 | VANGUARD FIDUCIARY TRUST CO | $60,757 | 60,155 | New |
| 8 | UNITED CAPITAL FINANCIAL ADVISORS, LLC | $58,104 | 57,529 | Trimmed |
| 9 | PERKINS CAPITAL MANAGEMENT INC | $55,853 | 55,300 | Added |
| 10 | THOMPSON DAVIS & CO., INC. | $47,918 | 47,444 | Added |
| 11 | STATE STREET CORP | $45,165 | 44,718 | Hold |
| 12 | JANE STREET GROUP, LLC | $38,010 | 37,634 | Added |
| 13 | GOLDMAN SACHS GROUP INC | $37,997 | 37,621 | Trimmed |
| 14 | DIVERSIFY WEALTH MANAGEMENT, LLC | $34,855 | 33,840 | New |
| 15 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $29,208 | 28,919 | Added |
| 16 | Bank of New York Mellon Corp | $25,905 | 25,649 | Trimmed |
| 17 | NORTHERN TRUST CORP | $21,521 | 21,308 | Hold |
| 18 | BlackRock, Inc. | $20,463 | 20,260 | Hold |
| 19 | TWO SIGMA SECURITIES, LLC | $10,900 | 10,792 | New |
| 20 | HighTower Advisors, LLC | $10,100 | 10,000 | Hold |
| 21 | Vanguard Global Advisers, LLC | $4,003 | 3,963 | New |
| 22 | Tower Research Capital LLC (TRC) | $2,113 | 2,092 | New |
| 23 | UBS Group AG | $1,156 | 1,144 | New |
| 24 | GROUP ONE TRADING LLC | $1,111 | 1,100 | Hold |
| 25 | SIMPLEX TRADING, LLC | $565 | 560 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31