Company profile
Ticker
KEI
Employees
Incorporated
Location
Fiscal year end
Industry (SIC)
Teradyne • Veralto • Itron • Cohu • Allient • Frequency Electronics • Transcat • Intest • Data io • Aehr Test Systems ...
SEC CIK
Corporate docs
IRS number
340794417
Latest filings (excl ownership)
15-12B
Securities registration termination
21 Dec 10
10-K
2010 FY
Annual report
15 Dec 10
NT 10-K
Notice of late annual filing
14 Dec 10
25-NSE
Exchange delisting
9 Dec 10
8-K
Keithley Instruments Acquired by Danaher Corporation
8 Dec 10
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Dec 10
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Dec 10
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Dec 10
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Dec 10
S-8 POS
Registration of securities for employees (post-effective amendment)
8 Dec 10
Latest ownership filings
SC 13D/A
GAMCO INVESTORS, INC. ET AL
9 Dec 10
SC 13D/A
KEITHLEY JOSEPH P
9 Dec 10
SC 13D/A
DANAHER CORP /DE/
9 Dec 10
SC 13D/A
GAMCO INVESTORS, INC. ET AL
16 Nov 10
SC 13D/A
GAMCO INVESTORS, INC. ET AL
13 Oct 10
SC 13D
GAMCO INVESTORS, INC. ET AL
8 Oct 10
SC 13D
DANAHER CORP /DE/
7 Oct 10
SC 13D/A
KEITHLEY JOSEPH P
5 Oct 10
11-K
Annual report of employee stock purchases
28 Jun 10
SC 13D/A
KEITHLEY JOSEPH P
9 Apr 10