HolderBook

IRIDEX CORP (IRIX)

Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.

29
Reporting holders
$2.6M
Reported value
13.2%
Of shares outstanding
0.0%
Calls
0.0%
Puts
+4
Holder change

Institutions report 2,313,917 shares against 17,564,912 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
VANGUARD CAPITAL MANAGEMENT LLC$589.2K514,5930.00%2qHELD
RENAISSANCE TECHNOLOGIES LLC$485.0K423,5420.00%31q+6.8%+$30.8K
MORGAN STANLEY$349.4K305,1930.00%newNEW
CITADEL ADVISORS LLC$226.6K197,9000.00%15q+225.2%+$156.9K
WEBER CAPITAL MANAGEMENT LLC /ADV$206.6K180,4510.18%3q-30.5%-$90.6K
GEODE CAPITAL MANAGEMENT, LLC$159.2K138,9600.00%31q-13.2%-$24.3K
STATE STREET CORP$102.4K89,4360.00%21q+100.0%+$51.2K
PERKINS CAPITAL MANAGEMENT INC$81.1K70,8000.06%30q+28.0%+$17.7K
VANGUARD FIDUCIARY TRUST CO$68.9K60,1550.00%2qHELD
GOLDMAN SACHS GROUP INC$46.3K40,4540.00%4q+7.5%+$3.2K
UNITED CAPITAL FINANCIAL ADVISORS, LLC$40.7K35,5290.00%3q-38.2%-$25.2K
XTX Topco Ltd$33.4K29,1900.00%newNEW
SUSQUEHANNA INTERNATIONAL GROUP, LLP$31.4K27,4590.00%5q-5.0%-$1.7K
Diversify Advisory Services, LLC$30.1K33,8400.00%newNEW
DIVERSIFY WEALTH MANAGEMENT, LLC$30.1K33,8400.00%2qHELD
Bank of New York Mellon Corp$29.4K25,6490.00%20qHELD
NORTHERN TRUST CORP$27.5K23,9830.00%31q+12.6%+$3.1K
BlackRock, Inc.$23.2K20,2600.00%8qHELD
THOMPSON DAVIS & CO., INC.$17.7K15,4440.01%3q-67.4%-$36.6K
CITIGROUP INC$16.2K14,1720.00%newNEW
Centiva Capital, LP$15.9K13,9200.00%newNEW
HighTower Advisors, LLC$11.4K10,0000.00%26qHELD
Vanguard Global Advisers, LLC$4.5K3,9630.00%2qHELD
Tower Research Capital LLC (TRC)$3.5K3,0950.00%2q+47.9%+$1.1K
GROUP ONE TRADING LLC$1.3K1,1000.00%11qHELD
UBS Group AG$9878620.00%2q-24.7%
SIMPLEX TRADING, LLC$7001120.00%2q-30.0%
Caitong International Asset Management Co., Ltd$11100.00%newNEW
SBI Securities Co., Ltd.$650.00%newNEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-07-1313D/ALin Shih-Yao David INDIVIDUALwith 2 co-filers29.9%

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-09-022026-08-27Delisting noticefiling

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202629$2.6M2,313,9178770.0%
Q1 202625$2.9M2,891,4165740.0%
Q4 202522$3.2M2,789,6524360.0%
Q3 202521$3.2M2,834,1743750.0%
Q2 202520$2.4M2,689,8893271.3%
Q1 202523$3.2M3,146,6502770.1%
Q4 202426$5.4M3,228,21813100.1%
Q3 202428$5.9M3,329,6251661.1%
Q2 202429$7.2M3,280,1093772.2%
Q1 202429$10.3M3,322,6961984.1%
Q4 202331$9.4M3,264,4226852.9%
Q3 202332$9.2M3,553,34373111.8%
Q2 202328$8.4M3,886,2122670.0%
Q1 202330$7.6M3,704,1006730.0%
Q4 202227$7.2M3,595,4873740.1%
Q3 202227$8.5M3,529,4754550.4%
Q2 202229$9.1M3,530,91311090.0%
Q1 202232$17.2M3,702,20151150.4%
Q4 202133$21.9M3,518,23071252.0%
Q3 202130$26.9M3,495,6235780.5%
Q2 202133$27.3M3,852,771121180.5%
Q1 202128$26.1M3,854,29211690.3%
Q4 202021$10.8M4,125,9403654.1%
Q3 202023$8.9M4,529,5220550.0%
Q2 202024$9.9M4,678,0591450.0%
Q1 202026$7.6M4,796,4213370.0%
Q4 201923$10.2M4,576,9590640.0%
Q3 201931$10.2M5,471,1234590.0%
Q2 201932$29.8M6,542,1353680.0%
Q1 201933$27.0M5,924,72327120.0%
Q4 201834$29.5M6,273,3860020.0%