IridexIRIX
13F holders, Q1 2025 (March 31)At the end of Q1 2025, 24 institutions reported holding Iridex Corp. (IRIX) in their 13F filings, down 3 from Q4 2024. 2 opened new positions and 5 sold out. The largest holders were Paragon Associates & Paragon Associates II Joint Venture ($990K), Vanguard Group Inc. ($589K) and AMH Equity Ltd ($513K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Iridex Corp.
- CUSIP
- 462684101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $32K |
| Exits | 5 | $266K |
All 13F filers, Q4 2024 → Q1 2025: 96,658 shares bought and 178,606 shares sold, net −81,948 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 24 holders
| Paragon Associates & Paragon Associates II Joint Venture | 2.32% | No change | 1,000,000 | $990K |
| Vanguard Group Inc. | 0.00% | Add +6.0% | 594,787 | $589K |
| AMH Equity Ltd | 0.79% | Add +3.5% | 518,541 | $513K |
| Renaissance Technologies | 0.00% | Reduce -0.5% | 379,160 | $375K |
| ARS Investment Partners, LLC | 0.02% | No change | 110,060 | $185K |
| Geode Capital Management, LLC | 0.00% | Add +1.5% | 133,105 | $132K |
| Citadel Advisors | 0.00% | Add +9.8% | 74,248 | $74K |
| Apexium Financial, LP | 0.00% | No change | 65,695 | $65K |
| BlackRock, Inc. | 0.00% | Reduce -1.2% | 56,668 | $56K |
| Perkins Capital Management Inc. | 0.05% | Add +4.4% | 47,300 | $47K |
| State Street Corp. | 0.00% | No change | 44,718 | $44K |
| Bank of New York Mellon Corp | 0.00% | No change | 31,540 | $31K |
| Northern Trust Corp. | 0.00% | Reduce -7.4% | 25,191 | $25K |
| Concurrent Investment Advisors, LLC | 0.00% | New | 21,944 | $22K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -40.5% | 14,549 | $14K |
| XTX Topco Ltd | 0.00% | New | 10,311 | $10K |
| HighTower Advisors, LLC | 0.00% | Reduce -0.6% | 10,000 | $10K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +86.2% | 5,961 | $6K |
| UBS Group AG | 0.00% | Reduce -87.8% | 1,502 | $1K |
| Group One Trading LLC | 0.00% | No change | 1,100 | $1K |
| West Paces Advisors Inc. | 0.00% | No change | 135 | $134 |
| Bank of America Corp. | 0.00% | Add +4.8% | 108 | $107 |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.0% | 27 | $27 |
| Simplex Trading, LLC | 0.00% | Reduce -75.3% | 125 | $0 |
"% of holder's portfolio" is IRIX's weight in each manager's 13F, not the share of Iridex Corp. the manager owns.