IRIDEX Corporation
IRIDEX Corporation (IRIX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · IRIX · as of Sep 30, 2025
Ownership Breakdown
21
Institutional Holders
$3.24M
Total Inst. Value
▲ $870,848 vs Q2
17.41M
Shares Outstanding
freeFloat 65.42%
2.83M
13F Shares Held
▲ 144,285 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
IRIX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE electromedical & electrotherapeutic apparatus | 1.00M | 5.95% | 5.95% | $1.14B | Nov 12, 2025 | — held |
VANGUARD GROUP INC electromedical & electrotherapeutic apparatus | 578.7K | 3.45% | 3.45% | $665.52M | Nov 7, 2025 | ▼ 7.1K |
RENAISSANCE TECHNOLOGIES LLC electromedical & electrotherapeutic apparatus | 389.1K | 2.32% | 2.32% | $443.72M | Nov 13, 2025 | ▲ 10.3K |
AMH EQUITY LTD electromedical & electrotherapeutic apparatus | 184.2K | 1.10% | 1.10% | $210.11M | Oct 29, 2025 | ▼ 5.8K |
GEODE CAPITAL MANAGEMENT, LLC electromedical & electrotherapeutic apparatus | 133.1K | 79.23% | 79.23% | $153.06M | Nov 12, 2025 | ▲ 1.3K |
CITADEL ADVISORS LLC electromedical & electrotherapeutic apparatus | 109.5K | 65.19% | 65.19% | $125.89M | Nov 14, 2025 | ▲ 78.3K |
APEXIUM FINANCIAL, LP electromedical & electrotherapeutic apparatus | 100.5K | 59.86% | 59.86% | $115.61M | Nov 18, 2025 | ▲ 34.8K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP electromedical & electrotherapeutic apparatus | 56.5K | 33.63% | 33.63% | $64.94M | Nov 14, 2025 | ▲ 17.8K |
GOLDMAN SACHS GROUP INC electromedical & electrotherapeutic apparatus | 47.8K | 28.46% | 28.46% | $54.51M | Nov 14, 2025 | NEW |
STATE STREET CORP electromedical & electrotherapeutic apparatus | 44.7K | 26.63% | 26.63% | $51.43M | Nov 14, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
7
Increased
+144.3K shares3
New Positions
first time holders5
Decreased
−25.5K shares3
Sold Out
fully exitedNet shares change (top 50)
+118.8K
+144.3K / −25.5K
Net new holders
+2
3 new / 3 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
IRIX insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
1
Sell transactions
3.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Dizon Romeo R Chief Financial Officer | Jun 5, 2026 | Purchase | 2,521 | $1.15 | $2.9K | 130.9K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Jun 3, 2026 | Purchase | 2,400 | $1.17 | $2.8K | 128.4K | Form 4 ↗ |
Mercer Patrick President and CEO | May 26, 2026 | Tax Withhold | 19,233 | $1.01 | $19.4K | 372.8K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | May 26, 2026 | Purchase | 5,004 | $1.00 | $5.0K | 126.0K | Form 4 ↗ |
Novel Inspiration International Co., Ltd. 10 percent owner | Apr 1, 2026 | J-Other | 87,949 | — | — | 439.4K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Mar 6, 2026 | Purchase | 1,110 | $1.26 | $1.4K | 121.0K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Feb 17, 2026 | Purchase | 1,200 | $1.31 | $1.6K | 119.9K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Feb 17, 2026 | Purchase | 1,000 | $1.37 | $1.4K | 118.7K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Feb 12, 2026 | Purchase | 1,500 | $1.43 | $2.1K | 117.7K | Form 4 ↗ |
Dizon Romeo R Chief Financial Officer | Feb 10, 2026 | Purchase | 1,000 | $1.46 | $1.5K | 116.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
IRIDEX Corporation (IRIX) is primarily owned by institutional investors, who hold approximately 16.3% of total shares outstanding. Company insiders own approximately 34.58%, while retail and public investors account for the remaining 49.14%.
The largest institutional shareholder of IRIDEX Corporation is PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE, holding approximately 1.00 million shares — equal to 5.95% of outstanding shares — as of September 30, 2025.
A total of 21 institutional investors currently hold IRIX stock, with a combined institutional value of approximately $3,242,072 as of the most recent 13F filing period.
Frequently asked questions
IRIX ownershipIRIDEX Corporation (IRIX) is primarily owned by institutional investors, who hold approximately 16.3% of shares. The largest shareholder is PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE with a 5.95% stake. Company insiders hold 34.58%. Data sourced from SEC Form 13F as of September 30, 2025.