| Data | Ora | Fonte | Titolo | Simbolo | Compagnia |
| 10/03/2011 | 22:30 | Marketwired | Keithley Publishes Online Tutorial Seminars on CD | NYSE:KEI | Keithley Instruments, Inc. |
| 09/12/2010 | 21:09 | Edgar (US Regulatory) | (25-NSE) | NYSE:KEI | Keithley Instruments, Inc. |
| 09/12/2010 | 19:33 | Edgar (US Regulatory) | Amended Statement of Beneficial Ownership (SC 13D/A) | NYSE:KEI | Keithley Instruments, Inc. |
| 08/12/2010 | 22:56 | Edgar (US Regulatory) | Post-Effective Amendment to an S-8 filing (S-8 POS) | NYSE:KEI | Keithley Instruments, Inc. |
| 08/12/2010 | 22:44 | Edgar (US Regulatory) | Current report filing (8-K) | NYSE:KEI | Keithley Instruments, Inc. |
| 08/12/2010 | 22:05 | PR Newswire (US) | Keithley Instruments Acquired by Danaher Corporation | NYSE:KEI | Keithley Instruments, Inc. |
| 07/12/2010 | 15:00 | PR Newswire (US) | Keithley Instruments Releases 11 New 'How-To' Videos on Configuring and Operating Source-Measure Units | NYSE:KEI | Keithley Instruments, Inc. |
| 02/12/2010 | 15:00 | PR Newswire (US) | Free Keithley Webinar Teaches Fundamentals of Bias Temperature Instability Measurement Methods | NYSE:KEI | Keithley Instruments, Inc. |
| 30/11/2010 | 15:00 | PR Newswire (US) | Keithley Instruments Honored for International Entrepreneurship | NYSE:KEI | Keithley Instruments, Inc. |
| 19/11/2010 | 15:09 | PR Newswire (US) | Keithley Instruments' Shareholders Approve Merger Agreement | NYSE:KEI | Keithley Instruments, Inc. |
| 16/11/2010 | 12:02 | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NYSE:KEI | Keithley Instruments, Inc. |
| 16/11/2010 | 00:03 | PR Newswire (US) | Standard & Poor's Announces Changes to U.S. Index | NYSE:KEI | Keithley Instruments, Inc. |
| 15/11/2010 | 15:00 | PR Newswire (US) | Free Keithley Web-Based Seminar Teaches Optimum Methods and Techniques for Making Electrical Resistivity Measurements | NYSE:KEI | Keithley Instruments, Inc. |
| 11/11/2010 | 15:00 | PR Newswire (US) | Keithley Instruments Hosts Applications Forum to Encourage Idea Exchange, Discussions Among Users | NYSE:KEI | Keithley Instruments, Inc. |
| 04/11/2010 | 13:12 | PR Newswire (US) | Keithley Instruments Reports Fourth Quarter Fiscal 2010 Sales Growth of 58 Percent and Net Income of $9.1 Million | NYSE:KEI | Keithley Instruments, Inc. |
| 02/11/2010 | 14:00 | Business Wire | Zoughi to Receive 2011 IEEE Joseph F. Keithley Award for Contributions to Microwave and Millimeter Wave Measurement Techniques | NYSE:KEI | Keithley Instruments, Inc. |
| 29/10/2010 | 18:44 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:KEI | Keithley Instruments, Inc. |
| 27/10/2010 | 20:24 | Business Wire | The Law Office of Abe Shainberg Launches an Investigation into the Possible Breaches of Fiduciary Duty by the Board of Keithl... | NYSE:KEI | Keithley Instruments, Inc. |
| 27/10/2010 | 02:24 | Business Wire | The Law Office of Robbins Umeda LLP Announces an Update on Its Investigation of the Acquisition of Keithley Instruments, Inc.... | NYSE:KEI | Keithley Instruments, Inc. |
| 25/10/2010 | 12:12 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (definitive) (DEFM14A) | NYSE:KEI | Keithley Instruments, Inc. |
| 21/10/2010 | 15:43 | Business Wire | Free Keithley Web-Based Seminar Reveals How To Conquer Challenging High Brightness LEDs Measurements | NYSE:KEI | Keithley Instruments, Inc. |
| 08/10/2010 | 23:20 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (preliminary) (PREM14A) | NYSE:KEI | Keithley Instruments, Inc. |
| 08/10/2010 | 22:00 | Edgar (US Regulatory) | Statement of Beneficial Ownership (SC 13D) | NYSE:KEI | Keithley Instruments, Inc. |
| 08/10/2010 | 15:00 | PR Newswire (US) | Nobel Winners in Physics Used Keithley Instrumentation in Prize-Winning Research | NYSE:KEI | Keithley Instruments, Inc. |
| 07/10/2010 | 23:16 | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | NYSE:KEI | Keithley Instruments, Inc. |
| 01/10/2010 | 19:12 | Business Wire | Shareholder Alert: The Briscoe Law Firm Investigates Keithley Instruments’ Board Concerning the Acquisition of Keithley Ins... | NYSE:KEI | Keithley Instruments, Inc. |
| 30/09/2010 | 02:30 | Business Wire | Law Offices of Howard G. Smith Announces Investigation on Behalf of Shareholders Keithley Instruments, Inc. in Connection wit... | NYSE:KEI | Keithley Instruments, Inc. |
| 30/09/2010 | 00:09 | Business Wire | Levetown & Jenkins, LLP Announces Investigation into Acquisition of Keithley Instruments Inc. by Danaher Corporation | NYSE:KEI | Keithley Instruments, Inc. |
| 29/09/2010 | 23:30 | Business Wire | Ryan & Maniskas, LLP Announces Investigation of Keithley Instruments Inc. | NYSE:KEI | Keithley Instruments, Inc. |
| 29/09/2010 | 23:23 | Business Wire | Shareholder Alert: Faruqi & Faruqi, LLP Announces Investigation Related to the Acquisition of Keithley Instruments, Inc. - KEI | NYSE:KEI | Keithley Instruments, Inc. |