IRIDEX Corporation (IRIX) Ownership
IRIX ownership summary
as of October 18, 2026- Institutions
- 19.5% of shares outstanding
- Insiders
- 37.52% of shares outstanding
- Shares outstanding
- 17.6M
- Float
- 10.0M shares available to trade
- Short interest
- 1.18% 132K shares short
- Days to cover
- 2.66 short interest down 17.9% vs prior month
- Institutions 19.46%
- Insiders 37.52%
- Other investors 43.02%
IRIX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | PARAGON Assoc & PARAGON Assoc II JV | 5.69% | 1.0M | $814,600 | — | March 31, 2026 |
| 2 | Vanguard Capital Management, LLC | 2.93% | 515K | $419,187 | — | June 30, 2026 |
| 3 | Renaissance Technologies Corp | 2.41% | 424K | $345,017 | +26,915 (+6.8%) | June 30, 2026 |
| 4 | Morgan Stanley - Brokerage Accounts | 1.74% | 305K | $248,610 | +305,193 (0.0%) | June 30, 2026 |
| 5 | Weber Capital Management LLC | 1.03% | 180K | $146,995 | −79,107 (−30.5%) | June 30, 2026 |
| 6 | Geode Capital Management, LLC | 0.79% | 139K | $113,197 | −21,199 (−13.2%) | June 30, 2026 |
| 7 | Citadel Advisors Llc | 0.56% | 99K | $80,605 | +38,099 (+62.6%) | June 30, 2026 |
| 8 | Perkins Capital Management Inc | 0.40% | 71K | $57,674 | +15,500 (+28.0%) | June 30, 2026 |
| 9 | Vanguard Fiduciary Trust Co | 0.34% | 60K | $49,002 | — | June 30, 2026 |
| 10 | State Street Corp | 0.25% | 45K | $36,427 | — | June 30, 2026 |
| 11 | The Goldman Sachs Group Inc | 0.23% | 40K | $32,954 | +2,833 (+7.5%) | June 30, 2026 |
| 12 | United Capital Financial Advisers Inc | 0.20% | 36K | $28,942 | −22,000 (−38.2%) | June 30, 2026 |
| 13 | DIVERSIFY WEALTH MANAGEMENT, LLC | 0.19% | 34K | $27,566 | — | June 30, 2026 |
| 14 | XTX Topco Ltd | 0.17% | 29K | $23,778 | +29,190 (0.0%) | June 30, 2026 |
| 15 | Susquehanna International Group, LLP | 0.16% | 27K | $22,368 | −1,460 (−5.0%) | June 30, 2026 |
| 16 | Bank of New York Mellon Corp | 0.15% | 26K | $20,894 | — | June 30, 2026 |
| 17 | Northern Trust Corp | 0.14% | 24K | $19,537 | +2,675 (+12.6%) | June 30, 2026 |
| 18 | BlackRock Inc | 0.12% | 20K | $16,504 | — | June 30, 2026 |
| 19 | Thompson Davis & Co Inc | 0.09% | 15K | $12,581 | −32,000 (−67.4%) | June 30, 2026 |
| 20 | Citigroup Inc | 0.08% | 14K | $11,545 | +14,172 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 435K shares and 5 cut 156K.
IRIX top mutual fund and ETF holders
6 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.29% | 402K | $327,349 | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.41% | 72K | $58,803 | −388 (−0.5%) | August 31, 2026 |
| 3 | Fidelity Series Total Market Index | 0.10% | 17K | $13,746 | — | August 31, 2026 |
| 4 | Fidelity Total Market Index | 0.08% | 14K | $11,791 | — | August 31, 2026 |
| 5 | Fidelity Nasdaq Composite Index | 0.06% | 11K | $9,220 | — | August 31, 2026 |
| 6 | Vanguard U.S. Eq Idx £ Acc | 0.02% | 3,963 | $3,228 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IRIX insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-17 | William M Moore | Buy | $0.97 | 21,843 | $21,188 |
| 2025-11-14 | William M Moore | Buy | $0.97 | 28,157 | $27,312 |
| 2025-08-18 | William M Moore | Buy | $1.18 | 12,024 | $14,188 |
| 2025-06-13 | Patrick Mercer | Buy | $0.96 | 250 | $240 |
| 2025-06-11 | Romeo R Dizon | Buy | $0.96 | 245 | $235 |
| 2025-06-10 | Romeo R Dizon | Buy | $0.98 | 335 | $328 |
| 2025-06-09 | Romeo R Dizon | Buy | $0.99 | 500 | $495 |
| 2025-06-06 | Romeo R Dizon | Buy | $0.97 | 1,500 | $1,455 |
| 2025-06-02 | Romeo R Dizon | Buy | $1.00 | 100 | $100 |
| 2025-06-02 | Romeo R Dizon | Buy | $1.00 | 100 | $100 |
| 2025-05-28 | Romeo R Dizon | Buy | $0.95 | 200 | $190 |
| 2025-05-27 | Romeo R Dizon | Buy | $1.00 | 100 | $100 |
| 2025-05-23 | Romeo R Dizon | Buy | $1.00 | 100 | $100 |
| 2025-05-22 | Romeo R Dizon | Buy | $1.00 | 200 | $200 |
| 2025-05-14 | Romeo R Dizon | Buy | $1.10 | 460 | $506 |
| 2025-05-12 | Romeo R Dizon | Buy | $1.16 | 100 | $116 |
| 2025-05-09 | Romeo R Dizon | Buy | $1.15 | 100 | $115 |
| 2025-05-07 | Romeo R Dizon | Buy | $1.15 | 193 | $222 |
| 2025-05-05 | Romeo R Dizon | Buy | $1.19 | 200 | $238 |
| 2025-04-28 | Patrick Mercer | Buy | $1.29 | 7,500 | $9,675 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
IRIX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IRIX
Institutional investors own 19.5% of IRIDEX's shares and insiders 37.52%. The largest holder is PARAGON Assoc & PARAGON Assoc II JV with 5.69% of the shares (1.0M), as of March 31, 2026. Among the top 20 institutions, 8 added shares and 5 reduced their stake in the latest filings. Short interest is 1.18% of the float, or 2.66 days of average trading volume. The share count rose 65.9% since 2014.
Related: IRIX analyst forecast, IRIX key metrics. See the IRIX stock overview for the latest quote and news.
IRIX ownership FAQ
Who owns the most IRIDEX stock?
The largest shareholders of IRIDEX are PARAGON Assoc & PARAGON Assoc II JV (5.69%), Vanguard Capital Management, LLC (2.93%), Renaissance Technologies Corp (2.41%), Morgan Stanley - Brokerage Accounts (1.74%), Weber Capital Management LLC (1.03%).
What percentage of IRIDEX is owned by institutions?
Institutions hold 19.5% of IRIDEX's shares outstanding; insiders hold 37.52%.
Which funds own IRIDEX?
The largest fund holders of IRIDEX are Vanguard MStar Total Stk Mkt Idx Invest (2.29%), Fidelity Extended Market Index (0.41%), Fidelity Series Total Market Index (0.10%), Fidelity Total Market Index (0.08%), Fidelity Nasdaq Composite Index (0.06%).
What is IRIDEX's short interest?
132K shares of IRIDEX were sold short, 1.18% of the float; at the average daily volume it would take 2.66 days to cover.
Are insiders buying or selling IRIDEX?
Of the latest 20 reported insider transactions in IRIDEX (since April 28, 2025), 20 were purchases and 0 were sales.
How many shares of IRIDEX are outstanding?
IRIDEX has 17.6M shares outstanding, of which 10.0M are in the public float.