INIS on OTC

RADNOSTIX INC

RADNOSTIX INC is an American industrial instruments for measurement company, incorporated in Texas.1 It is headquartered in Idaho Falls, Idaho.1 Its shares trade on OTC under the symbol INIS.1

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Last updated Oct 21, 2026.

Overview

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  • TickerINIS on OTC1
  • IndustryIndustrial Instruments For Measurement, Display, and Control1
  • HeadquartersIdaho Falls, Idaho1
  • Incorporated inTX2
  • Business address4137 Commerce Circle, Idaho Falls, Id 834012
  • Filer categoryNon-accelerated filer, Smaller reporting company2

Radnostix Inc. (the “Company”, “we”, “us” and “our”) manufactures a wide range of radioisotope-focused products used in variety of medical and industrial applications. We were formed as a Texas corporation in 1995. On December 23, 2025, we filed a Certificate of Amendment in the state of Texas for the sole purpose of amending our Certificate of Formation to change our corporate name from International Isotopes Inc. to Radnostix, Inc. Our board of directors approved the name change on October 21, 2025, and a majority of shareholders approved the name change by written consent on November 25, 2025.4 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

58.9%Gross margin5
-7.3%Operating margin5
-6.9%Net margin5
-6.0%Revenue growth, 20255
-24.6%Return on equity5
0.52×Debt to equity5
$86.0KFree cash flow5

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

Theranostics Products brought in 52% of the revenue RADNOSTIX INC broke down this way in fiscal 2025.

  1. Theranostics Products$6.8M552%down 15% from 2024
  2. Calibration & Reference Products$4.2M533%up 21% from 2024
  3. Cobalt Products$1.8M513%down 26% from 2024
  4. Medical Device Products$229.0K52%up 2545% from 2024
Business segments by year
Business segments20242025
Theranostics Products$8.0M$6.8M
Calibration & Reference Products$3.5M$4.2M
Cobalt Products$2.4M$1.8M
Medical Device Products$8.7K$229.0K

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue41¢$5.4M
  • Research and development3¢$435.8K
  • Other costs56¢$7.3M

Out of $13.1M in revenue.5 The company lost money this year.

Where each dollar of operating cash went, fiscal 2025

  • Capital spending86¢$534.2K
  • Kept or used elsewhere14¢$86.0K

Out of $620.2K of cash from operations.5

Financial statements

Revenue6789105$13.1M in 2025+46% since 2019
0$5.0M$10.0M$15.0M2019: $9.0M$9.0M20192020: $9.4M$9.4M2020+5%2021: $9.7M$9.7M2021+3%2022: $11.2M$11.2M2022+16%2023: $12.3M$12.3M2023+10%2024: $13.9M$13.9M2024+13%2025: $13.1M$13.1M2025−6%
Gross profit6789105$7.7M in 2025+65% since 2019
0$2.5M$5.0M$7.5M$10.0M2019: $4.7M$4.7M20192020: $5.5M$5.5M2020+17%2021: $5.7M$5.7M2021+5%2022: $6.3M$6.3M2022+10%2023: $7.4M$7.4M2023+17%2024: $8.6M$8.6M2024+17%2025: $7.7M$7.7M2025−11%
Operating income6789105-$956.2K in 2025+71% since 2019
-$1.5M-$1.0M-$500.0K0$500.0K2019: -$558.3K-$558.3K20192020: -$415.7K-$415.7K2020−26%2021: -$680.8K-$680.8K2021+64%2022: -$1.2M-$1.2M2022+77%2023: -$776.3K-$776.3K2023−35%2024: $6.9K$6.9K20242025: -$956.2K-$956.2K2025
Net income6789105-$908.0K in 2025−40% since 2019
-$2.0M-$1.0M0$1.0M$2.0M$3.0M2019: -$1.5M-$1.5M20192020: $2.2M$2.2M20202021: -$902.3K-$902.3K20212022: $303.2K$303.2K20222023: -$869.0K-$869.0K20232024: $8.6K$8.6K20242025: -$908.0K-$908.0K2025

Every line of the income statement as filed: the last 2 fiscal years, latest first.5

Period ending2025-12-312024-12-31
Revenues$13.1M$13.9M
Cost of product$5.4M$5.3M
Gross profit$7.7M$8.6M
Salaries and contract labor$4.5M$4.0M
General, administrative, and consulting$3.7M$4.0M
Research and development$435.8K$610.7K
Total operating expenses$8.7M$8.6M
Operating profit (loss)-$956.2K$6.9K
Other income$310.8K$208.0K
Interest income$76.6K$122.4K
Interest expense-$339.3K-$328.7K
Total other (expense) income$48.2K$1.7K
Net income (loss)-$908.0K$8.6K
Net income (loss) per common share - basic: (in dollars per share)$0.00$0.00
Net income (loss) per common share - diluted: (in dollars per share)$0.00$0.00
Weighted average common shares outstanding - basic (in shares)526.8M shares522.3M shares
Weighted average common shares outstanding - diluted (in shares)526.8M shares522.3M shares

Compare RADNOSTIX INC with another company

Corporate structure

RADNOSTIX INC sits at the top of its group. 7 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of RADNOSTIX INC

  • RADNOSTIX INC Idaho Falls, Idaho
    • International Isotopes Fluorine Products Inc. Subsidiary · Idaho, United States
    • International Isotopes Idaho Inc. Subsidiary · Idaho, United States
    • International Isotopes Transportation Services Inc. Subsidiary · Idaho, United States
    • RadQual, LLC Subsidiary · Idaho, United States
    • RadVent, LLC Subsidiary · Idaho, United States
    • TI Services, LLC Subsidiary · Ohio, United States

Built from subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What RADNOSTIX INC reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, before depreciation$7.0M5 Dec 31, 2025$6.4M5 Dec 31, 2024+9.0%
Accumulated depreciation$3.3M5 Dec 31, 2025$3.1M5 Dec 31, 2024+6.0%
Property and equipment, net$3.7M5 Dec 31, 2025$3.3M5 Dec 31, 2024+11.9%
Finance-lease assets$05 Dec 31, 2025$8265 Dec 31, 2024−100.0%
Operating-lease assets (leased space)$2.8M5 Dec 31, 2025$2.0M5 Dec 31, 2024+39.0%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$1.7M5 Dec 31, 2025$1.9M5 Dec 31, 2024−12.9%

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$1.4M5 Dec 31, 2025$1.4M5 Dec 31, 20240%
Finite-lived intangibles, gross$5.4M5 Dec 31, 2025$5.4M5 Dec 31, 20240%
Accumulated amortization$2.2M5 Dec 31, 2025$2.0M5 Dec 31, 2024+8.3%
Finite-lived intangibles, net$3.2M5 Dec 31, 2025$3.4M5 Dec 31, 2024−4.9%

Inventory

ItemLatestA year beforeChange
Inventory, total$875.4K5 Dec 31, 2025$820.9K5 Dec 31, 2024+6.6%

Properties, in its own words

In 2001, we leased one property in Idaho ("Building A") which serves as or main corporate headquarters and houses all of our current manufacturing operations for our core business segments. Our TI Services subsidiary leases an office facility in Ohio. In December 2024, we purchased vacant land adjacent to our main corporate headquarters. We also hold the conditional title to 640 acres of land in Lea County, New Mexico for the proposed de-conversion facility. The following paragraphs provide a brief summary of these properties. Beginning in January 2025, we began leasing a second facility across the street from our main headquarters ("Building B").

Building A: 4137 Commerce Circle, Idaho Falls, Idaho – The facility located on this property houses our main corporate headquarters and all of our current manufacturing operations. In January 2020, we entered into a new lease agreement due to new and expanded facilities made available to us. The initial lease term is until January 2030 and provides an option to renew for an additional 5 years. The facility was new when leased in March 2001 and remains in excellent condition. We have the right of first refusal on this property that allows us to match any offer to purchase this property.

The rest of Item 2

Building B: 1359 Commerce Way, Idaho Falls, Idaho – This facility is located directly across the street from Building A. We began leasing this facility in January 2025; the initial term is until December 2029 and we have the option to extend the lease for two additional terms of 5 years each. We have the right of first refusal on this property that allows us to match any offer to purchase this property.

775 Boardman-Canfield Rd, Unit A-2, Boardman, Ohio – This office facility houses the employees of TI Services who are engaged in sales activities. The facility was leased in November 2017 and is currently under tenancy from month-to-month.

Land Adjacent to Building A, Idaho Falls, Idaho – Land is located directly South of Building A; it was acquired in December 2024 through a mix of cash and seller's financing. The land has no zoning restrictions in regards to building coverage and height.

Item 2 of the 10-K filed Mar 31, 2026.4

Leadership

Who has led RADNOSTIX INC, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (5)

Subsidiaries and ownership

Subsidiaries (Exhibit 21)

  • International Isotopes Fluorine Products Inc. Idaho3
  • International Isotopes Idaho Inc. Idaho3
  • International Isotopes Transportation Services Inc. Idaho3
  • RadQual, LLC Idaho3
  • RadVent, LLC Idaho3
  • TI Services, LLC Ohio3

The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Former names

  • INTERNATIONAL ISOTOPES INCOct 3, 1997 to Dec 31, 20252

Timeline

  1. Oct 1, 20268-K Entered a material agreement; Regulation FD disclosure23
  2. Jul 21, 20268-K Executive or director change; Shareholder vote24
  3. Jul 1, 20268-K Entered a material agreement; Completed an acquisition or sale; New debt or obligation25
  4. May 20, 20268-K Change to shareholders' rights; Bylaws or fiscal year changed26
  5. Mar 16, 20268-K Ended a material agreement; Other events27
  6. Dec 31, 20258-K Bylaws or fiscal year changed; Other events28
  7. Oct 17, 20258-K Executive or director change; Bylaws or fiscal year changed29
  8. Oct 17, 20258-K Executive or director change; Bylaws or fiscal year changed30
  9. Jul 16, 20258-K Shareholder vote31
  10. Oct 2, 20248-K Change to shareholders' rights; Bylaws or fiscal year changed32
  11. Jul 16, 20248-K Shareholder vote33
  12. Feb 8, 20248-K Entered a material agreement; Regulation FD disclosure34
  13. Sep 7, 2023New chief executive Shahe Bagerdjian becomes CEO14
  14. Aug 14, 2007New chief executive Steve Laflin becomes CEO15

Filings

93 filings to the SEC since October 2021: 8 annual reports, 15 quarterly reports, 19 major events, 31 insider forms, 5 large holders, 15 other. The latest 20:

  1. Oct 1, 20268-K EDGAR
  2. Aug 26, 2026S-8 EDGAR
  3. Aug 12, 202610-Q EDGAR
  4. Jul 21, 20268-K EDGAR
  5. Jul 1, 20268-K EDGAR
  6. Jun 30, 20264 EDGAR
  7. Jun 4, 2026DEFA14A EDGAR
  8. Jun 4, 2026DEF 14A EDGAR
  9. May 20, 20268-K EDGAR
  10. May 20, 202610-Q EDGAR
  11. May 15, 2026NT 10-Q EDGAR
  12. May 14, 2026SCHEDULE 13G EDGAR
  13. Apr 30, 20264 EDGAR
  14. Apr 30, 202610-K/A EDGAR
  15. Mar 31, 202610-K EDGAR
  16. Mar 16, 20268-K EDGAR
  17. Dec 31, 20258-K EDGAR
  18. Nov 26, 2025DEF 14C EDGAR
  19. Nov 14, 202510-Q EDGAR
  20. Oct 17, 20258-K EDGAR

The 93 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

13 open-market trades by officers, directors and large owners since October 2021: 13 buys and 0 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
May 22, 2025Bagerdjian ShahePres. & CEOBuy140,000$0.05$7.0KForm 4
Mar 6, 2025Bagerdjian ShahePres. & CEOBuy177,000$0.05$8.8KForm 4
Nov 22, 2024COX W MATTHEWChief Financial OfficerBuy60,000$0.03$1.8KForm 4
Nov 20, 2024Bagerdjian ShahePres. & CEOBuy100,000$0.04$4.0KForm 4
Nov 20, 2024COX W MATTHEWChief Financial OfficerBuy30,000$0.04$1.2KForm 4
Nov 14, 2024GROSSO CHRISTOPHER GDirectorBuy401,117$0.03$12.0KForm 4
Sep 18, 2024GROSSO CHRISTOPHER GDirectorBuy800,000$0.03$24.0KForm 4
Jun 14, 2024Bagerdjian ShahePres. & CEOBuy250,000$0.04$10.0KForm 4
Jun 14, 2024COX W MATTHEWChief Financial OfficerBuy239,669$0.04$9.6KForm 4
Dec 14, 2023COX W MATTHEWChief Financial OfficerBuy250,000$0.03$7.5KForm 4
Dec 14, 2023Bagerdjian ShahePres. & CEOBuy1,000,000$0.03$30.0KForm 4
Aug 25, 2023Bagerdjian ShahePres. & CEOBuy3,950$0.05$198Form 4
Nov 15, 2022GROSSO CHRISTOPHER GDirectorBuy1,410,000$0.03$42.3KForm 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025Shahe Bagerdjian42$309.2K$1.5M36
2025W. Matthew Cox42$161.9K$172.7K36
2024PresidentChief Executive Officer$294.6K$429.7K36
2024Chief Financial Officer and Secretary$147.4K$148.7K36

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Capital Square, LLC20,000$1.3K0.0%No change

13F reports cover disclosed long positions in U.S. stocks only.

SEC filer profile

How RADNOSTIX INC is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARRADNOSTIX INC1
  • CIK0001038277
  • Employer ID (EIN)74-27638374
  • Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company4
  • Incorporated inTexas4
  • Fiscal year endsDecember 311
  • Industry code (SIC)3823 Industrial Instruments For Measurement, Display, and Control1
  • SEC reviewing officeOffice of Industrial Applications and Services, Division of Corporation Finance1
  • Business address4137 Commerce Circle, Idaho Falls, ID 834011
  • Phone20852453001
  • Shares outstanding529,154,204 as of Aug 10, 202612
  • Public float$6.0M as of Jun 30, 20254
  • AuditorHaynie, Salt Lake City, UT PCAOB ID 457; no auditor attestation of internal control over financial reporting4
  • On EDGAR sinceMay 1, 19971
  • Filings543 in all: 4 (124), 8-K (99), 10-Q (67), DEF 14A (31), SC 13G/A (23), 10-K (21), 10QSB (21), S-8 (9)1
    All 54 form types

    SC 13D/A (9), 424B3 (8), PRE 14A (8), S-3 (8), 10-K/A (7), 10KSB (7), NT 10-Q (7), POS AM (7), CORRESP (6), CT ORDER (6), D (5), EFFECT (5), NT 10-K (5), UPLOAD (5), 3 (4), DEFA14A (4), SC 13G (4), 10QSB/A (3), 5 (3), S-3/A (3), SB-2/A (3), 10KSB/A (2), 4/A (2), 8-K/A (2), AW (2), SB-2 (2), SC 13D (2), 10-K405 (1), 10-Q/A (1), 424B2 (1), 424B4 (1), 8-A12B (1), 8-A12G (1), DEF 14C (1), DEFR14A (1), DEFS14A (1), NT 10-Q/A (1), NTN 10K (1), PRES14A (1), REGDEX (1), RW (1), S-1 (1), S-1/A (1), S-8 POS (1), SCHEDULE 13G (1), SCHEDULE 13G/A (1)

  • Latest filingsAnnual report (10-K) Mar 31, 2026
    Quarterly report (10-Q) Aug 12, 2026
    Proxy statement (DEF 14A) Jun 4, 2026
    Latest 8-K (8-K) Oct 1, 2026

Risk factors and legal proceedings

The risks RADNOSTIX INC names in Item 1A of its 10-K filed Mar 31, 2026: 5 risks under these headings, as written.4

  • Readers should carefully consider the following factors that may affect our business, future operating results, and financial condition, as well as other information included in this Annual Report. The risks and uncertainties described below are not the only ones the Company faces. Additional risks and uncertainties not presently known to us or that we currently deem immaterial also may impair our business operations. If any of the following risks occur, our business, financial condition results of operations, or cash flow could be materially adversely affected.
  • Risks Related To Our Company
  • All our manufacturing processes generate some radioactive waste that is expensive to dispose of safely.
  • We are subject to extensive health and safety regulations.
  • We are subject to various federal, state, local and foreign government requirements regulating the discharge of materials into the environment or otherwise relating to the protection of the environment.
  • We are subject to significant regulatory oversight of our import and export operations due to the nature of our product offerings.
  • Risks Related To Our Common Stock

Legal proceedings

From time to time, we may become party to litigation or other legal proceedings that we consider to be a part of the ordinary course of our business. We are not currently involved in legal proceedings that could reasonably be expected to have a material adverse effect on our business, prospects, financial condition, or results of operations. We may become involved in material legal proceedings in the future.

The opening of Item 3, Legal Proceedings.4

Sources

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