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Iridex (IRIX)

Iridex on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as electromedical & electrotherapeutic apparatus.

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132K

Short interest

settlement 2026-09-30

3.5

Days to cover

+0.9 days vs prior

35.2%

Short share of volume

2026-10-09

9,868

Fails to deliver

settlement 2026-09-14

Wed 11 Nov

Next earnings

estimated date

$15K

Insider flow, 90 days

5 buys, 0 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in IRIX is 131,655 shares, down 16,656 shares over the last month. Over the last 48 readings it ranged from 21,768 shares (15 June 2026) to 357,396 shares (30 May 2025). At the reported average volume of 38K shares a day that is 3.5 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-30131,655-17.9%37,7573.49
2026-09-15160,330+8.1%62,5842.56
2026-08-31148,311+291.8%150,6421.00
2026-08-1437,854+29.8%53,7101.00
2026-07-3129,164-19.1%59,4391.00
2026-07-1536,062+20.2%30,8681.17
2026-06-3029,995+37.8%46,9561.00
2026-06-1521,768-21.9%77,2861.00
2026-05-2927,882-2.2%71,6171.00
2026-05-1528,508-49.5%48,1151.00
2026-04-3056,463-46.0%66,0371.00
2026-04-15104,611+222.1%1,236,4901.00
2026-03-3132,477-31.5%80,2751.00
2026-03-1347,428+3.4%26,8921.76
2026-02-2745,880-37.3%44,1751.04
2026-02-1373,137-46.9%67,2261.09
2026-01-30137,748-49.0%157,8721.00
2026-01-15270,157-3.5%117,1072.31
2025-12-31280,093-1.1%94,8012.95
2025-12-15283,107-3.8%69,4744.08
2025-11-28294,425+2.3%61,1464.82
2025-11-14287,959+4.4%143,0802.01
2025-10-31275,804+3.4%41,7556.61
2025-10-15266,707+0.3%71,7633.72

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of IRIX volume is 35.2%, up 9.2 points over the last five sessions. Over the last 30 readings it ranged from 10.9% (1 September 2026) to 80.3% (4 September 2026). The latest reading is 4.8 points below the 30-session average of 40.1%, on 53K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-0919K53K35.2%0
2026-10-08111K278K39.8%241
2026-10-074.8M8.3M57.9%45,376
2026-10-062K15K11.9%0
2026-10-0543K91K47.7%0
2026-10-024K16K26.0%0
2026-10-0116K42K38.2%100
2026-09-301K8K17.5%0
2026-09-2912K33K37.7%0
2026-09-285K17K27.3%12
2026-09-255K16K33.0%1,100
2026-09-249K27K32.2%0
2026-09-236K9K60.1%0
2026-09-223K9K36.2%0
2026-09-2118K35K51.0%0
2026-09-1815K37K40.9%0
2026-09-179K19K47.3%0
2026-09-165K29K18.4%0
2026-09-1519K33K57.6%0
2026-09-1429K55K52.2%0
2026-09-1122K51K42.5%0
2026-09-1020K60K33.0%0
2026-09-097K26K28.6%0
2026-09-0826K65K39.5%0
2026-09-0426K33K80.3%0
2026-09-0324K49K48.7%1,800
2026-09-021K9K16.2%0
2026-09-018648K10.9%0
2026-08-316K8K70.9%0
2026-08-2844K70K63.1%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in IRIX is 9,868 shares, up 6,346 shares over the last settlement date. Over the last 30 readings it ranged from 13 shares (12 November 2025) to 18,378 shares (20 August 2025).

SettlementShares failedPriceValue
2026-09-149,868$0.66$7K
2026-09-113,522$0.68$2K
2026-08-19100$0.93$93
2026-08-1847$0.88$41
2026-08-04242$0.83$201
2026-07-1052$1.12$58
2026-06-301,964$1.14$2K
2026-04-102,199$1.04$2K
2026-03-19736$1.33$979
2026-03-03418$1.41$589
2026-02-24318$1.41$448
2026-01-21793$1.48$1K
2026-01-202,912$1.41$4K
2026-01-025,931$1.14$7K
2025-12-317,320$1.15$8K
2025-12-242,790$1.10$3K
2025-12-23378$1.03$389
2025-11-25331$0.92$305
2025-11-21438$0.94$412
2025-11-20549$0.95$522
2025-11-1213$1.19$15
2025-11-10492$1.06$522
2025-10-288,909$1.06$9K
2025-10-247,000$1.09$8K
2025-10-212,303$1.08$2K
2025-10-17479$1.04$498
2025-10-09221$1.09$241
2025-09-291,676$1.15$2K
2025-09-191,549$1.28$2K
2025-08-2018,378$1.16$21K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at IRIX reported 5 open-market buys worth $15K in the last 90 days and no open-market sells. Latest filing: Mercer Patrick (President and CEO) on 2026-10-01.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-01Mercer PatrickPresident and CEOTax withholding24K$0.63$15K445K
2026-09-16Dizon Romeo RChief Financial OfficerBuy8K$0.63$5K185K
2026-09-14Dizon Romeo RChief Financial OfficerBuy2K$0.65$2K177K
2026-09-10Dizon Romeo RChief Financial OfficerBuy5K$0.68$3K175K
2026-08-24Dizon Romeo RChief Financial OfficerBuy5K$0.75$4K170K
2026-08-24Dizon Romeo RChief Financial OfficerBuy1K$0.75$973165K
2026-07-10Mercer PatrickPresident and CEOGrant100K$0.00$0469K
2026-07-10Dizon Romeo RChief Financial OfficerGrant30K$0.00$0163K
2026-07-07Novel Inspiration International Co., Ltd.10% ownerJ112Kprice not stated in the filingnot stated551K
2026-06-13Mercer PatrickPresident and CEOTax withholding4K$1.12$4K369K
2026-06-13Dizon Romeo RChief Financial OfficerTax withholding3K$1.12$3K133K
2026-06-12Dizon Romeo RChief Financial OfficerBuy975$1.14$1K136K
2026-06-11Dizon Romeo RChief Financial OfficerBuy2K$1.14$2K135K
2026-06-08Dizon Romeo RChief Financial OfficerBuy2K$1.12$3K133K
2026-06-05Dizon Romeo RChief Financial OfficerBuy3K$1.15$3K131K
2026-06-03Dizon Romeo RChief Financial OfficerBuy2K$1.17$3K128K
2026-05-26Mercer PatrickPresident and CEOTax withholding19K$1.01$19K373K
2026-05-26Dizon Romeo RChief Financial OfficerBuy5K$1.00$5K126K
2026-04-01Lin Shih-Yao DavidTenPercentOwnerJ88Kprice not stated in the filingnot stated439K
2026-03-30Lin Shih-Yao David10% ownerBuy7K$0.99$7K1.2M
2026-03-24Lin Shih-Yao David10% ownerBuy5K$1.33$6K1.2M
2026-03-23Lin Shih-Yao David10% ownerBuy18K$1.33$23K1.2M
2026-03-17Lin Shih-Yao David10% ownerBuy23K$1.31$30K1.2M
2026-03-16Lin Shih-Yao David10% ownerBuy2K$1.30$2K1.1M
2026-03-12Lin Shih-Yao David10% ownerBuy967$1.32$1K1.1M
2026-03-06Dizon Romeo RChief Financial OfficerBuy1K$1.26$1K121K
2026-03-03Lin Shih-Yao David10% ownerBuy752$1.42$1K1.1M
2026-03-02Lin Shih-Yao David10% ownerBuy1K$1.40$2K1.1M
2026-02-23Lin Shih-Yao David10% ownerBuy15K$1.41$21K1.1M
2026-02-17Dizon Romeo RChief Financial OfficerBuy1K$1.31$2K120K
2026-02-17Dizon Romeo RChief Financial OfficerBuy1K$1.37$1K119K
2026-02-12Lin Shih-Yao David10% ownerBuy100$1.38$1381.1M
2026-02-12Dizon Romeo RChief Financial OfficerBuy2K$1.43$2K118K
2026-02-11Lin Shih-Yao David10% ownerBuy16K$1.43$22K1.1M
2026-02-10Dizon Romeo RChief Financial OfficerBuy1K$1.46$1K116K
2026-02-09Lin Shih-Yao David10% ownerBuy129$1.46$1881.1M
2026-02-05Lin Shih-Yao David10% ownerBuy41K$1.45$59K1.1M
2026-02-04Lin Shih-Yao David10% ownerBuy19K$1.41$27K1.1M
2026-02-03Dizon Romeo RChief Financial OfficerBuy3K$1.38$3K115K
2026-02-02Lin Shih-Yao David10% ownerBuy637$1.49$9491.0M
2026-01-30Lin Shih-Yao David10% ownerBuy4K$1.48$6K1.0M
2026-01-29Dizon Romeo RChief Financial OfficerBuy1K$1.44$2K113K
2026-01-28Dizon Romeo RChief Financial OfficerBuy1K$1.46$2K112K
2026-01-27Lin Shih-Yao David10% ownerBuy33K$1.48$49K1.0M
2026-01-27Dizon Romeo RChief Financial OfficerBuy3K$1.48$5K110K
2026-01-26Dizon Romeo RChief Financial OfficerBuy1K$1.52$2K107K
2026-01-23Lin Shih-Yao David10% ownerBuy30K$1.48$44K1.0M
2026-01-23Dizon Romeo RChief Financial OfficerBuy5K$1.48$8K106K
2026-01-21Dizon Romeo RChief Financial OfficerBuy2K$1.49$3K100K
2026-01-21Dizon Romeo RChief Financial OfficerBuy409$1.53$62699K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

4 holders report 5% or more of IRIX in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Lin Shih-Yao David at 29.9% of the class (6,738,238 shares), filed 2026-07-13 for an event on 2025-03-19.

FiledFormHolderSharesOf classEvent
2026-07-1313D/Ano. 1Lin Shih-Yao Davidindividual6.7M29.9%2025-03-19
2026-07-1313D/Ano. 1Novel Inspiration International Co., Ltd.investment company5.6M24.6%2025-03-19
2026-07-1313D/Ano. 1XINPO VENTURE CAPITAL CO., LTD.investment company1.2M6.8%2025-03-19
2026-01-0813DShih-Yao David Linindividual5.4M24.1%2025-03-19

13F holders

Tracked managers holding IRIX at their latest 13F. JSON

2 of the 30 tracked managers held IRIX at their latest 13F, $598K in total at quarter-end prices. Renaissance Technologies is the largest at $485K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30424K$485K0.00%+27K
Citadel Advisors2026-06-3099K$113K0.00%+38K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2027 (quarter ended 2026-07-04) Iridex reported revenue of $12.6M, down 7.4% from the same quarter a year earlier, and net loss of $1.3M (-0.07 diluted EPS). In FY 2026 it generated -$2.1M of operating cash flow.

Cash
$4.7M
Equity
$3.6M
Total assets
$27.3M
Shares outstanding
17,564,912

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20272026-07-04$12.6M-$1.3M-10.1%-0.07
Q1 FY 20272026-04-04$11.8M-$524K-4.4%-0.03
Q4 FY 2026derived2026-01-03$14.7Mn/an/an/a
Q3 FY 20262025-09-27$12.5M-$1.6M-12.6%-0.09
Q2 FY 20262025-06-28$13.6M-$994K-7.3%-0.06
Q1 FY 20262025-03-29$11.9M-$1.7M-14.2%-0.10
Q4 FY 2025derived2024-12-28$12.7M-$834K-6.6%n/a
Q3 FY 20252024-09-28$11.6M-$1.9M-16.7%-0.12

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20262026-01-03$52.7M-$4.4M-$2.1M$143Kn/an/a
FY 20242024-12-28$48.7M-$8.9M-$7.3M$13Kn/an/a
FY 20232023-12-30$51.9M-$9.6M-$6.7M$109Kn/an/a
FY 20222022-12-31$57.0M-$7.5M-$9.5M$286Kn/an/a
FY 20222022-01-01$53.9M-$5.2M$8.2M$213Kn/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-07-04; shares outstanding as of 2026-08-13 from the cover page.

What this page is

Iridex in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Iridex (IRIX), SEC CIK 1006045, listed on Nasdaq, classified by the SEC as electromedical & electrotherapeutic apparatus. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-13.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-07-04.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-18.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-01.JSON and CSV
Company record
EDGAR filing index for CIK 1006045Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as electromedical & electrotherapeutic apparatus

Other company pages

Datasets

Frequently Asked Questions

How much of IRIX is sold short?
131,655 shares were held short at the 2026-09-30 settlement, 3.5 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is IRIX's daily short volume?
On 2026-10-09, 18,772 of the 53,317 IRIX shares reported to FINRA were sold short, 35.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does IRIX have fails to deliver?
The SEC's latest file shows 9,868 IRIX shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.
Are IRIX insiders buying or selling?
Insiders at IRIX reported 5 open-market buys worth $15K in the last 90 days and no open-market sells. Latest filing: Mercer Patrick (President and CEO) on 2026-10-01.
Who owns 5% or more of IRIX?
4 holders report 5% or more of IRIX in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Lin Shih-Yao David at 29.9% of the class (6,738,238 shares), filed 2026-07-13 for an event on 2025-03-19.
What did IRIX report last quarter?
In Q2 FY 2027 (quarter ended 2026-07-04) Iridex reported revenue of $12.6M, down 7.4% from the same quarter a year earlier, and net loss of $1.3M (-0.07 diluted EPS). In FY 2026 it generated -$2.1M of operating cash flow.
Which tracked 13F managers own IRIX?
2 of the 30 tracked 13F managers held IRIX shares at their latest filing, $598K in all. The largest: Renaissance Technologies (424K shares, $485K), Ken Griffin's Citadel Advisors (99K shares, $113K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.