US Nuclear (UCLE) files NT 10-K citing audit delay

Rhea-AI Filing Summary

US Nuclear Corp. notified the SEC that it cannot timely file its Form 10-K for the period ended December 31, 2025 because it needs additional time to compile supporting documentation and to permit its independent registered public accounting firm to complete the audit; the company intends to file the Form 10-K as soon as possible.

Insights

Accounting Auditor

Late Form 10-K cites pending audit work and documentation completion.

The filing states the company requires extra time to assemble supporting documentation and for its independent registered public accounting firm to complete the audit of consolidated financial statements for the period ended December 31, 2025. This is a procedural delay tied to audit close procedures.

Timing is governed by audit completion; subsequent filings will show whether the delay affected reported results or disclosed adjustments. Future periodic filings will indicate the outcome.

Key Figures

Report Period Ended: December 31, 2025 Notification Signed Date: March 31, 2026 Contact Telephone: (818) 883-7043

3 metrics

Report Period Ended December 31, 2025 Period covered by the delayed Form 10-K

Notification Signed Date March 31, 2026 Date the NT 10-K notification was signed by CEO Robert Goldstein

Contact Telephone (818) 883-7043 Contact for questions about the notification: Robert Goldstein

Key Terms

Rule 12b-25, Form 10-K, independent registered public accounting firm

3 terms

Rule 12b-25 regulatory

"The reason described in reasonable detail in Part III of this form could not be eliminated"

Rule 12b-25 is an SEC filing provision that lets a company notify regulators and the public that it cannot file a required periodic report (like a quarterly or annual report) on time and explains the reason for the delay. For investors, the notice is a formal heads-up that financial information will arrive late—similar to a company calling to say it will be late turning in homework—so it signals increased uncertainty and may affect trading and risk assessments until the filing is available.

Form 10-K regulatory

"US Nuclear Corp. is unable to file, without unreasonable effort or expense, its Form 10-K"

A Form 10-K is a comprehensive report that publicly traded companies are required to file annually with regulators. It provides a detailed overview of a company's financial health, operations, and risks, similar to a detailed health report. Investors use this information to assess the company's performance and make informed decisions about buying or selling its stock.

independent registered public accounting firm financial

"to permit the Company’s independent registered public accounting firm to complete its audit"

An independent registered public accounting firm is an outside accounting company officially registered with the government regulator to examine and report on a public company's financial records and controls. Investors treat its reports like an impartial inspector’s certificate — they add credibility to financial statements, help spot errors or misleading claims, and reduce the risk that shareholders are relying on unchecked or biased numbers.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Why did US Nuclear Corp. (UCLE) file an NT 10-K notification?

US Nuclear Corp. filed an NT 10-K because it could not complete its Form 10-K for the period ended December 31, 2025. The company needs more time to compile documentation and allow its independent auditor to finish the audit before filing.

When does UCLE expect to file the delayed Form 10-K?

The company states it intends to file the Form 10-K as soon as possible after completing documentation and the auditor's work. No specific filing date is provided in the notification; timing depends on audit completion and internal reviews.

Does the NT 10-K say whether UCLE expects material changes to results?

The notification includes a checkbox about anticipated changes but does not provide narrative or quantitative details indicating expected material changes to operating results for the period ended December 31, 2025.

Who is the contact for this NT 10-K filing for UCLE?

The notification lists Robert Goldstein as the contact and provides telephone (818) 883-7043. He is identified in the filing and signed the notification dated March 31, 2026 as Chief Executive Officer.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/31/2026 - 02:17 PM EDT Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 12b-25

NOTIFICATION OF LATE FILING

(Check one):

☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q

☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR

For Period Ended: December 31, 2025

☐ Transition Report on Form 10-K

☐ Transition Report on Form 20-F

☐ Transition Report on Form 11-K

☐ Transition Report on Form 10-Q

☐ Transition Report on Form N-SAR

For the Transition Period Ended:

Read Instruction Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

PART I — REGISTRANT INFORMATION

US NUCLEAR CORP.

(Full Name of Registrant)

7051 ETON AVENUE CANOGA PARK CA 91303

(Address Of Principal Executive Offices)

PART II — RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate.)

☒		(a)	The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense
		(b)	The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
		(c)	The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-CEN, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

US Nuclear Corp. (the “Company”) is unable to file, without unreasonable effort or expense, its Form 10-K for the period ended December 31, 2025. Additional time is needed for the Company to compile and analyze supporting documentation to complete the Form 10-K and to permit the Company’s independent registered public accounting firm to complete its audit of the consolidated financial statements included in the Form 10-K. The Company intends to file the Form 10-K as soon as possible.

PART IV — OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification

Robert Goldstein		818)		883-7043
(Name)		(Area Code)		(Telephone Number)

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). Yes ☒ No ☐

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? Yes ☐ No ☒

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

SIGNATURES

US Nuclear Corp. has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 31, 2026
By:	/s/ Robert Goldstein
	Robert Goldstein
	Chief Executive Officer