Tracker · Cybersecurity
Cyber incident disclosures
Public companies must tell investors within four business days once they decide a cybersecurity incident is material. Every disclosure filed under that rule, in one list.
Updated Nov 3, 2026, 9:40 a.m. ET from SEC EDGAR
Disclosures since Dec 18, 2023
59
Companies
57
Filed in 2026
18
15 in 2025
The current quarter is incomplete. Updates to earlier disclosures (8-K/A) are not counted. Source: SEC EDGAR.
All filings, newest first
85 entries. Page 1 of 2.
| Filed | Company | Ticker | Industry | Filing |
|---|---|---|---|---|
| Oct 13 | Park Dental Partners, Inc. | PARK | Services-Misc Health & Allied Services, NEC | First disclosure |
| Sep 23 | Astrana Health, Inc. | ASTH | Services-Management Consulting Services | First disclosure |
| Sep 8 | Boston Scientific Corp | BSX | Surgical & Medical Instruments & Apparatus | First disclosure |
| Sep 1 | Park Dental Partners, Inc. | PARK | Services-Misc Health & Allied Services, NEC | First disclosure |
| Aug 31 | Nutex Health Inc. | NUTX | Services-Business Services, NEC | First disclosure |
| Jul 31 | Amgen Inc | AMGN | Biological Products, (No Diagnostic Substances) | First disclosure |
| Jul 30 | River Financial Corp | RVRF | State Commercial Banks | Update (8-K/A) |
| Jul 17 | River Financial Corp | RVRF | State Commercial Banks | Update (8-K/A) |
| Jul 10 | River Financial Corp | RVRF | State Commercial Banks | Update (8-K/A) |
| Jul 6 | River Financial Corp | RVRF | State Commercial Banks | Update (8-K/A) |
| Jul 2 | AdaptHealth Corp. | AHCO | Services-Home Health Care Services | First disclosure |
| Jul 2 | Navient Corp | JSM | Security Brokers, Dealers & Flotation Companies | First disclosure |
| Jun 25 | River Financial Corp | RVRF | State Commercial Banks | First disclosure |
| Jun 23 | 8x8 Inc /De/ | EGHT | Services-Computer Processing & Data Preparation | First disclosure |
| Jun 15 | iRhythm Holdings, Inc. | IRTC | Surgical & Medical Instruments & Apparatus | First disclosure |
| May 22 | Oncology Institute, Inc. | TOI | Services-Offices & Clinics of Doctors of Medicine | First disclosure |
| May 20 | West Pharmaceutical Services Inc | WST | Surgical & Medical Instruments & Apparatus | Update (8-K/A) |
| May 11 | West Pharmaceutical Services Inc | WST | Surgical & Medical Instruments & Apparatus | First disclosure |
| May 11 | CB Financial Services, Inc. | CBFV | State Commercial Banks | First disclosure |
| Apr 9 | Stryker Corp | SYK | Surgical & Medical Instruments & Apparatus | Update (8-K/A) |
| Apr 8 | Bitcoin Depot Inc. | BTM | Finance Services | First disclosure |
| Mar 27 | CareCloud, Inc. | CCLD | Services-Prepackaged Software | First disclosure |
| Mar 20 | Trio-Tech International | TRT | Special Industry Machinery, NEC | First disclosure |
| Feb 24 | Ufp Technologies Inc | UFPT | Surgical & Medical Instruments & Apparatus | First disclosure |
| Feb 3 | Wytec International Inc | WYTC | Telegraph & Other Message Communications | Update (8-K/A) |
| Dec 29, 2025 | Coupang, Inc. | CPNG | Retail-Catalog & Mail-Order Houses | Update (8-K/A) |
| Dec 16, 2025 | Coupang, Inc. | CPNG | Retail-Catalog & Mail-Order Houses | First disclosure |
| Oct 30, 2025 | BayFirst Financial Corp. | BAFN | State Commercial Banks | First disclosure |
| Oct 21, 2025 | Jewett Cameron Trading Co Ltd | JCTC | Retail-Lumber & Other Building Materials Dealers | First disclosure |
| Oct 15, 2025 | F5, Inc. | FFIV | Computer Communications Equipment | First disclosure |
| Sep 10, 2025 | Data I/O Corp | DAIO | Instruments For Meas & Testing of Electricity & Elec Signals | First disclosure |
| Aug 29, 2025 | Wytec International Inc | WYTC | Telegraph & Other Message Communications | First disclosure |
| Aug 21, 2025 | Data I/O Corp | DAIO | Instruments For Meas & Testing of Electricity & Elec Signals | First disclosure |
| Jun 26, 2025 | United Natural Foods Inc | UNFI | Wholesale-Groceries, General Line | First disclosure |
| Jun 20, 2025 | Nucor Corp | NUE | Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) | Update (8-K/A) |
| Jun 13, 2025 | Zoomcar Holdings, Inc. | ZCAR | Services-Auto Rental & Leasing (No Drivers) | First disclosure |
| May 15, 2025 | Coinbase Global, Inc. | COIN | Finance Services | First disclosure |
| May 14, 2025 | Nucor Corp | NUE | Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) | First disclosure |
| Apr 14, 2025 | CONDUENT Inc | CNDT | Services-Business Services, NEC | First disclosure |
| Apr 9, 2025 | Sensata Technologies Holding plc | ST | Industrial Instruments For Measurement, Display, and Control | First disclosure |
| Mar 6, 2025 | National Presto Industries Inc | NPK | Ordnance & Accessories, (No Vehicles/Guided Missiles) | First disclosure |
| Mar 6, 2025 | LEE ENTERPRISES, Inc | LEE | Newspapers: Publishing or Publishing & Printing | Update (8-K/A) |
| Feb 18, 2025 | LEE ENTERPRISES, Inc | LEE | Newspapers: Publishing or Publishing & Printing | First disclosure |
| Jan 27, 2025 | Englobal Corp | ENGC | Services-Engineering Services | Update (8-K/A) |
| Dec 11, 2024 | Krispy Kreme, Inc. | DNUT | Retail-Food Stores | First disclosure |
| Dec 2, 2024 | Englobal Corp | ENG | Services-Engineering Services | First disclosure |
| Nov 18, 2024 | iLearningEngines, Inc. | AILE | Services-Prepackaged Software | First disclosure |
| Sep 3, 2024 | Halliburton Co | HAL | Oil & Gas Field Services, NEC | First disclosure |
| Aug 6, 2024 | Key Tronic Corp | KTCC | Printed Circuit Boards | Update (8-K/A) |
| Aug 6, 2024 | Bassett Furniture Industries Inc | BSET | Wood Household Furniture, (No Upholstered) | Update (8-K/A) |
How this tracker works
Since December 18, 2023, SEC rules require public companies to report a cybersecurity incident under Item 1.05 of Form 8-K within four business days of determining that it is material. We search SEC filings every six hours and keep each 8-K and amendment tagged with Item 1.05.
Some companies disclose incidents they have not judged material under Item 8.01 instead; those are not included. Each filing links to the company’s own description of the incident.