Insider Trading activities of Keithley Instruments Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Keithley Instruments Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Keithley Instruments Inc since year 2005. Table 2 shows the detailed insider transactions of Keithley Instruments Inc since 2005. The reporting company's ticker symbol is KEI. The reporting company's CIK number is 54991.
The total value of stock buying since 2005 is $413,114.
The total value of stock sales since 2005 is $477,454.
The total value of stock option exercises since 2005 is $367,867.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Keithley Instruments Inc (KEI).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2010-10 0 $0 0 $0 60,250 $0
2010-02 1,812 $9,940 0 $0 0 $0
2010-01 6,947 $36,289 0 $0 0 $0
2009-12 16,818 $73,012 0 $0 0 $0
2009-09 4,785 $22,312 0 $0 0 $0
2009-08 4,111 $21,315 1,000 $5,850 0 $0
2009-07 9,239 $39,716 0 $0 0 $0
2009-06 12,329 $49,594 0 $0 1,000 $4,125
2009-05 9,380 $39,691 2,000 $8,218 0 $0
2009-04 11,994 $39,643 0 $0 0 $0
2009-03 6,172 $19,820 0 $0 0 $0
2009-01 0 $0 0 $0 2,503 $0
2008-11 0 $0 0 $0 38,400 $0
2008-07 0 $0 18,500 $185,209 18,500 $71,132
2008-05 0 $0 5,000 $49,025 5,000 $12,655
2008-01 0 $0 0 $0 11,616 $44,060
2007-12 0 $0 6,500 $60,054 0 $0
2007-11 0 $0 0 $0 6,500 $32,090
2007-09 0 $0 0 $0 30,000 $171,540
2007-08 2,000 $21,524 0 $0 2,000 $8,250
2007-07 0 $0 0 $0 1,200 $6,861
2007-05 2,000 $24,268 8,640 $104,708 0 $0
2007-04 0 $0 400 $6,100 0 $0
2007-02 0 $0 3,800 $58,290 3,000 $17,154
2007-01 0 $0 0 $0 1,934 $0
2005-03 1,000 $15,990 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Keithley Instruments Inc insiders (KEI)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2010-10-27 Pendergrass Larry L (VP New Product Development) Option Ex 6,300 .00 0
2010-10-27 Rae Linda C (Executive VP & COO) Option Ex 12,125 .00 0
2010-10-27 Hoersten Mark A (VP Business Management) Option Ex 5,700 .00 0
2010-10-27 Plush Mark J (VP, CFO) Option Ex 12,000 .00 0
2010-10-27 Keithley Joseph P (Director, Chairman, CEO) Option Ex 24,125 .00 0
2010-02-05 Keithley Joseph P (Director, Chairman, CEO) Buy 312 5.50 1,716
2010-02-04 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 5.48 8,224
2010-01-28 Keithley Joseph P (Director, Chairman, CEO) Buy 1,812 5.48 9,938
2010-01-22 Keithley Joseph P (Director, Chairman, CEO) Buy 1,100 5.44 5,984
2010-01-21 Keithley Joseph P (Director, Chairman, CEO) Buy 100 5.50 550
2010-01-12 Keithley Joseph P (Director, Chairman, CEO) Buy 836 5.35 4,472
2010-01-11 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 5.47 5,470
2010-01-05 Keithley Joseph P (Director, Chairman, CEO) Buy 999 4.71 4,705
2010-01-04 Keithley Joseph P (Director, Chairman, CEO) Buy 1,100 4.70 5,170
2009-12-29 Keithley Joseph P (Director, Chairman, CEO) Buy 1,200 4.52 5,423
2009-12-28 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.46 4,455
2009-12-22 Keithley Joseph P (Director, Chairman, CEO) Buy 1,306 4.28 5,583
2009-12-21 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.33 4,327
2009-12-15 Keithley Joseph P (Director, Chairman, CEO) Buy 1,312 4.19 5,497
2009-12-14 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.44 4,445
2009-12-08 Griswold James B (Director) Buy 4,000 4.33 17,320
2009-12-07 Griswold James B (Director) Buy 6,000 4.33 25,962
2009-09-15 Keithley Joseph P (Director, Chairman, CEO) Buy 500 5.15 2,575
2009-09-14 Keithley Joseph P (Director, Chairman, CEO) Buy 500 4.70 2,350
2009-09-10 Keithley Joseph P (Director, Chairman, CEO) Buy 285 4.82 1,372
2009-09-09 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.24 4,235
2009-09-08 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.32 4,325
2009-09-01 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 4.97 7,455
2009-08-31 Keithley Joseph P (Director, Chairman, CEO) Buy 500 5.10 2,550
2009-08-25 Keithley Joseph P (Director, Chairman, CEO) Buy 411 5.10 2,096
2009-08-24 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 5.23 7,845
2009-08-21 Keithley Joseph P (Director, Chairman, CEO) Buy 1,200 5.17 6,204
2009-08-18 Keithley Joseph P (Director, Chairman, CEO) Buy 500 5.24 2,620
2009-08-03 Bachman Brian R (Director) Sale 1,000 5.85 5,850
2009-07-29 Keithley Joseph P (Director, Chairman, CEO) Buy 600 4.78 2,865
2009-07-28 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 4.72 7,075
2009-07-21 Keithley Joseph P (Director, Chairman, CEO) Buy 1,066 4.87 5,194
2009-07-20 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.75 4,750
2009-07-15 Keithley Joseph P (Director, Chairman, CEO) Buy 422 4.15 1,751
2009-07-14 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.08 4,082
2009-07-13 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.10 4,100
2009-07-08 Keithley Joseph P (Director, Chairman, CEO) Buy 1,151 3.85 4,434
2009-07-07 Keithley Joseph P (Director, Chairman, CEO) Buy 500 3.86 1,930
2009-07-06 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 3.54 3,535
2009-06-30 Keithley Joseph P (Director, Chairman, CEO) Buy 1,685 3.70 6,234
2009-06-29 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 3.70 3,695
2009-06-23 Keithley Joseph P (Director, Chairman, CEO) Buy 1,130 3.63 4,098
2009-06-22 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.87 5,809
2009-06-16 Keithley Joseph P (Director, Chairman, CEO) Buy 1,011 3.94 3,983
2009-06-15 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.96 5,947
2009-06-09 Keithley Joseph P (Director, Chairman, CEO) Buy 1,237 4.48 5,535
2009-06-08 Hoersten Mark A (VP Business Management) Option Ex 1,000 4.12 4,125
2009-06-08 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.38 4,383
2009-06-02 Keithley Joseph P (Director, Chairman, CEO) Buy 1,766 4.36 7,708
2009-06-01 Keithley Joseph P (Director, Chairman, CEO) Buy 500 4.40 2,202
2009-05-27 Keithley Joseph P (Director, Chairman, CEO) Buy 1,488 4.34 6,457
2009-05-26 Keithley Joseph P (Director, Chairman, CEO) Buy 800 4.33 3,465
2009-05-20 Keithley Joseph P (Director, Chairman, CEO) Buy 1,281 4.28 5,476
2009-05-19 Bachman Brian R (Director) Sale 2,000 4.11 8,218
2009-05-19 Keithley Joseph P (Director, Chairman, CEO) Buy 300 4.25 1,275
2009-05-18 Keithley Joseph P (Director, Chairman, CEO) Buy 800 3.96 3,168
2009-05-12 Keithley Joseph P (Director, Chairman, CEO) Buy 1,377 4.03 5,547
2009-05-11 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.38 4,375
2009-05-05 Keithley Joseph P (Director, Chairman, CEO) Buy 1,334 4.36 5,810
2009-05-04 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 4.12 4,118
2009-04-29 Keithley Joseph P (Director, Chairman, CEO) Buy 1,112 3.08 3,426
2009-04-28 Keithley Joseph P (Director, Chairman, CEO) Buy 1,000 3.44 3,440
2009-04-27 Keithley Joseph P (Director, Chairman, CEO) Buy 900 3.38 3,037
2009-04-21 Keithley Joseph P (Director, Chairman, CEO) Buy 1,520 3.19 4,848
2009-04-20 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.37 5,059
2009-04-14 Keithley Joseph P (Director, Chairman, CEO) Buy 1,719 3.42 5,880
2009-04-13 Keithley Joseph P (Director, Chairman, CEO) Buy 1,200 3.36 4,034
2009-04-09 Keithley Joseph P (Director, Chairman, CEO) Buy 1,543 3.29 5,082
2009-04-07 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.22 4,837
2009-03-31 Keithley Joseph P (Director, Chairman, CEO) Buy 1,574 3.25 5,115
2009-03-30 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.20 4,800
2009-03-24 Keithley Joseph P (Director, Chairman, CEO) Buy 1,598 3.21 5,126
2009-03-23 Keithley Joseph P (Director, Chairman, CEO) Buy 1,500 3.19 4,779
2009-01-02 Bachman Brian R (Director) Option Ex 2,503 .00 0
2008-11-06 Chipchase Stephen Arthur (Vice President, Operations) Option Ex 2,300 .00 0
2008-11-06 Pendergrass Larry L (VP New Product Development) Option Ex 3,375 .00 0
2008-11-06 Rae Linda C (Executive VP & COO) Option Ex 6,300 .00 0
2008-11-06 Hoersten Mark A (VP Business Management) Option Ex 3,375 .00 0
2008-11-06 Gaffney Alan S (VP Comm Mkt & Info Sys) Option Ex 2,300 .00 0
2008-11-06 Plush Mark J (VP, CFO) Option Ex 4,000 .00 0
2008-11-06 Etsler Philip (VP Human Resources) Option Ex 2,500 .00 0
2008-11-06 Keithley Joseph P (Director, Chairman, CEO) Option Ex 14,250 .00 0
2008-07-29 Rae Linda C (Executive VP & COO) Sale 6,500 10.03 65,221
2008-07-29 Rae Linda C (Executive VP & COO) Option Ex 6,500 3.33 21,632
2008-07-29 Pesec John A (VP Worldwide Sales & Support) Sale 12,000 10.00 119,988
2008-07-29 Pesec John A (VP Worldwide Sales & Support) Option Ex 12,000 4.12 49,500
2008-05-27 Pesec John A (VP Worldwide Sales & Support) Sale 5,000 9.80 49,025
2008-05-27 Pesec John A (VP Worldwide Sales & Support) Option Ex 5,000 2.53 12,655
2008-01-30 Hendrix Leon J Jr (Director) Option Ex 10,000 4.41 44,060
2008-01-02 Bachman Brian R (Director) Option Ex 1,616 .00 0
2007-12-28 Keithley Joseph P (Director, Chairman, CEO) Sale 3,500 9.24 32,322
2007-12-27 Keithley Joseph P (Director, Chairman, CEO) Sale 3,000 9.24 27,732
2007-11-30 Keithley Joseph P (Director, Chairman, CEO) Option Ex 6,500 4.94 32,090
2007-09-14 Keithley Joseph P (Director, Chairman, CEO) Option Ex 30,000 5.72 171,540
2007-08-29 Gaffney Alan S (VP Comm Mkt & Info Sys) Option Ex 2,000 4.12 8,250
2007-08-06 Taylor Suzanne Schulze (VP, General Counsel, CCO) Buy 2,000 10.76 21,524
2007-07-31 Hoersten Mark A (VP Business Management) Option Ex 1,200 5.72 6,861
2007-05-11 Etsler Philip (VP Human Resources) Sale 8,640 12.12 104,708
2007-05-01 Taylor Suzanne Schulze (VP, General Counsel, CCO) Buy 2,000 12.13 24,268
2007-04-02 Bachman Brian R (Director) Sale 400 15.25 6,100
2007-02-26 Pesec John A (VP Worldwide Sales & Support) Sale 3,000 15.43 46,290
2007-02-26 Pesec John A (VP Worldwide Sales & Support) Option Ex 3,000 5.72 17,154
2007-02-20 Bachman Brian R (Director) Sale 800 15.00 12,000
2007-01-03 Bachman Brian R (Director) Option Ex 1,934 .00 0
2005-03-14 Griswold James B (Director) Buy 1,000 15.99 15,990

Insider trading activities including stock purchases, stock sales, and option exercises of KEI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Keithley Instruments Inc (symbol KEI, CIK number 54991) see the Securities and Exchange Commission (SEC) website.