secwatch / observer
8-K/A filed November 5, 2025, 6:59 PM ET ticker UCLE CIK 0001543623
other material confidence high sentiment negative materiality 0.65

US Nuclear Corp dismisses auditor Fruci, engages Simon & Edward; prior reports flagged going concern

US NUCLEAR CORP.

Machine-readable event card

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secwatch.filing_event.v1
accession
0001213900-25-106557
form_type
8-K/A
ticker
UCLE
cik
0001543623
company_name
US NUCLEAR CORP.
filed_at
2025-11-05T23:59:59+00:00
discovered_at
2026-05-14T18:02:39.697036+00:00
generated_at
2026-05-17T00:16:40.185520+00:00
sec_items
["4.01", "9.01"]
event_type
other_material
sentiment
negative
materiality_score
0.65
calibrated_materiality_score
0.65
confidence
high
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text_url
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edgar_index_url
https://www.sec.gov/Archives/edgar/data/1543623/000121390025106557/0001213900-25-106557-index.htm
edgar_primary_document_url
https://www.sec.gov/Archives/edgar/data/1543623/000121390025106557/ea0264216-8ka_usnuclear.htm
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Source-grounded claims

19e2bcc77a3afe6d1f6b03af031f0376ecfc4977

US NUCLEAR CORP. engaged Simon & Edward, LLP as its auditor.

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

SEC 8-K Item 4.01/4.02 confidence 0.9 SEC evidence

e50d088ae8405a0473c87d6ad0bccd6a453bf13a

US NUCLEAR CORP. dismissed Fruci & Associates II, PLLC as its auditor.

6 provided by Fruci & Associates II, PLLC. 1 ITEM 4.01. Changes in Registrant’s Certifying Accountant (1) Previous Independent Auditors : On October 29, 2025, US Nuclear Corp (the “Company”), through action of the Board of Directors of the Company, dismissed Fruci & Associates II, PLLC (“Fruci”) as the Company’s independent registered public accounting firm, effective as of October 29, 2025. The reports of Fruci & Associates II, PLLC on the Company’s consolidated financial statements for the fiscal years ended December 31, 2024 and 2023 did not contain an adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope, or accounting principles, other than an explanatory paragraph about the Company’s ability to continue as a going concern . During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim period through the date

SEC 8-K Item 4.01/4.02 confidence 0.9 SEC evidence

Comparable filings

CNTY

Century Casinos dismisses Grant Thornton, appoints EY as new auditor; cites material weaknesses

CENTURY CASINOS INC /CO/ May 28, 2026, 4:11 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

(b) Engagement of Independent Registered Public Accounting Firm On May 22, 2026, the Audit Committee appointed Ernst & Young LLP (“EY”) as our independent registered public accounting firm to audit our consolidated financial statements for the fiscal year ending December 31, 2026.

Filing page SEC filing

SVCO

Silvaco dismisses Baker Tilly, appoints KPMG as independent auditor

Silvaco Group, Inc. May 27, 2026, 5:25 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

on May 27, 2026, KPMG LLP (“KPMG”) was engaged as the Company’s independent registered public accounting firm

Filing page SEC filing

ALUR

Allurion Technologies dismisses Deloitte & Touche, appoints CBIZ; discloses material weaknesses

ALLURION TECHNOLOGIES, INC. May 27, 2026, 4:35 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

On May 22, 2026 (the “Effective Date”), Deloitte was dismissed as our independent registered public accounting firm.

Filing page SEC filing

WAST

Waste Energy Corp. replaces independent auditor; Integrität resigns, M&K CPAs appointed

WASTE ENERGY CORP. May 22, 2026, 4:24 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

On May 21, 2026, the Audit Committee and Board of Directors approved the engagement of M&K CPAs, PLLC as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025, subject to completion of customary client acceptance procedures and execution of a final engagement letter.

Filing page SEC filing

TUSK

Mammoth Energy Services replaces auditor Deloitte with Carr, Riggs & Ingram

MAMMOTH ENERGY SERVICES, INC. May 15, 2026, 8:29 AM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

Also on May 13, 2026, the Audit Committee approved the engagement of Carr, Riggs & Ingram, L.L.C. (“CRI”) as its new independent registered public accounting firm.

Filing page SEC filing

QWTR

Quest Water Global's auditor Fruci resigns; no successor yet

Quest Water Global, Inc. May 7, 2026, 7:59 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

On May 5, 2026, and at the request of Quest Water Global, Inc. (the “Company”), Fruci & Associates II, PLLC (“Fruci”) resigned as the Company’s independent accountant.

Filing page SEC filing

MLSS

Milestone Scientific dismisses auditor CBIZ; engages Grassi & Co. effective May 15, 2026

MILESTONE SCIENTIFIC INC. May 6, 2026, 7:59 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

The Company engaged Grassi & Co., CPAs, P.C. to be the independent registered public accounting firm to the Company for

Filing page SEC filing

RCMT

RCM Technologies dismisses EisnerAmper, engages WithumSmith+Brown; cites material weaknesses

RCM TECHNOLOGIES, INC. May 4, 2026, 7:59 PM ET other_material Items 4.01, 9.01

same fact type: auditor_change same SEC item: 4.01, 9.01 same event type: other_material similar materiality

This filing

ngaged Simon & Edward, LLP (“SE”) as the Company’s independent registered public accounting firm to audit the Company’s consolidated financial statements for the fiscal year ending December 31, 2025. This appointment is effective as of October 29, 2025. During the fiscal years ended December 31, 2024 and 2023 and the subsequent interim periods prior to engagement, the Company did not consult with SE regarding: (a) the application of accounting principles to a specified transaction, either completed or proposed; or the type

Comparable filing

On April 29, 2026, RCM Technologies, Inc. (the “Company”) dismissed EisnerAmper LLP (“Eisner”) as its independent registered public accounting firm.

Filing page SEC filing

Source: SEC EDGAR
accession 0001213900-25-106557

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