X0303 4 2010-06-15 0 0001111632 AVISTAR COMMUNICATIONS CORP AVSR 0001230898 CAMPBELL WILLIAM L C/O AVISTAR COMMUNICATIONS CORPORATION 1875 SOUTH GRANT ST., 10TH FLR. SAN MATEO CA 94402 1 0 0 0 Incentive Stock Option (right to buy) 0.55 2010-06-15 4 A 0 30573 A 2020-06-15 Common Stock 30573 30573 D Incentive Stock Option (right to buy) 0.55 2010-06-15 4 A 0 41163 A 2020-06-15 Common Stock 41163 71736 D Incentive Stock Option (right to buy) 0.55 2010-06-15 4 A 0 120055 A 2020-06-15 Common Stock 120055 191791 D Incentive Stock Option (right to buy) 0.55 2010-06-15 4 A 0 50875 A 2020-06-15 Common Stock 50875 242666 D Incentive Stock Option (right to buy) 0.55 2010-06-15 4 A 0 39375 A 2020-06-15 Common Stock 39375 282041 D Incentive Stock Option (right to buy) 0.9 2010-06-15 4 D 0 150069 D 2013-04-23 Common Stock 150069 0 D Incentive Stock Option (right to buy) 1.16 2010-06-15 4 D 0 51454 D 2014-04-21 Common Stock 51454 73546 D Incentive Stock Option (right to buy) 1.16 2010-06-15 4 D 0 73546 D 2014-04-21 Common Stock 73546 0 D Incentive Stock Option (right to buy) 1.21 2010-06-15 4 D 0 72679 D 2012-05-14 Common Stock 72679 0 D Incentive Stock Option (right to buy) 1.47 2010-06-15 4 D 0 56251 D 2011-04-10 Common Stock 56251 0 D Incentive Stock Option (right to buy) 2.91 2010-06-15 4 D 0 47036 D 2015-04-20 Common Stock 47036 0 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 20000 A 2020-06-15 Common Stock 20000 20000 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 20000 A 2020-06-15 Common Stock 20000 40000 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 34426 A 2020-06-15 Common Stock 34426 74426 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 58836 A 2020-06-15 Common Stock 58836 133262 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 135944 A 2020-06-15 Common Stock 135944 269206 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 54124 A 2020-06-15 Common Stock 54124 323330 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 65624 A 2020-06-15 Common Stock 65624 388954 D Non-Qualified Stock Option (right to buy) 0.55 2010-06-15 4 A 0 13500 A 2020-06-15 Common Stock 13500 402454 D Non-Qualified Stock Option (right to buy) 0.88 2010-06-15 4 D 0 25000 D 2019-01-01 Common Stock 25000 25000 D Non-Qualified Stock Option (right to buy) 0.88 2010-06-15 4 D 0 25000 D 2019-01-01 Common Stock 25000 0 D Non-Qualified Stock Option (right to buy) 0.9 2010-06-15 4 D 0 169931 D 2013-04-23 Common Stock 169931 0 D Non-Qualified Stock Option (right to buy) 1.21 2010-06-15 4 D 0 77321 D 2012-05-14 Common Stock 77321 0 D Non-Qualified Stock Option (right to buy) 1.47 2010-06-15 4 D 0 93749 D 2011-04-10 Common Stock 93749 0 D Non-Qualified Stock Option (right to buy) 2.91 2010-06-15 4 D 0 52964 D 2015-04-20 Common Stock 52964 0 D The option vests as to 50% of the shares on the first anniversary of the grant date, and as to 50% of the shares on the second year anniversary of the grant date, subject to continued service through each vesting date; provided, however, that the granted option fully vests and is exercisable as to 100% of the shares upon a change in control. On June 15, 2010, the issuer canceled, pursuant to the issuer's option exchange program, the eligible unexercised options granted to the reporting person. In exchange for these canceled options, the reporting person received new options to purchase the issuer's Common Stock. 25% of the shares subject to the option shall become vested and exercisable one year after the date of grant and 1/16th of the sares subject to the option shall vest at the end of each three month period thereafter The option vests as to 34% of the shares on the first anniversary of the grant date, and as to 33% of the shares on each of the next yearly anniversaries of the grant date, so as to fully vested in 3 years, subject to continued service through each vesting date; provided, however, that the granted option fully vests and is exercisable as to 100% of the shares upon a change in control. 25% of the shares subject to the option shall become vested and exercisable one year after the date of grant and 1/48th of the shares subject to the option shall become vested and exercisable each month thereafter By: Elias MurrayMetzger For: William Campbell 2010-06-17