GENOVESE MARY ELLEN P

SEC source: 0001023731-18-000060 · primary_doc.xml · nonDerivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,839

F2 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

SEC source: 0001023731-18-000060 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,823

F1 · kind: Reporting person elected to receive quarterly bonus payment in stock, as authorized by the issuer's compensation committee. Number of shares was determined by dividing bonus amount by the stock closing price on October 31, 2018. Shares vest immediately.

SEC source: 0001023731-18-000046 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,775

Underlying: Common Stock · 8,340 shares

Expires 2018-10-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted sock unit represents a contingent right to receive one share of EGHT common stock.

F3 · derivative.exercise_date: RSUs do not vest unless and until average closing price of 8x8 common stock over any 30 consecutive trading day period within 4 years from the grant date exceeds 150% of grant date closing price; then, at rate of 25% on each anniversary of grant date.

SEC source: 0001023731-18-000046 · primary_doc.xml · nonDerivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,838

F1 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

SEC source: 0001023731-18-000046 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 198,972

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 14

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,115

Underlying: Common Stock · 21,028 shares

Expires 2018-09-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F5 · kind: 21,028 Restricted Stock Units became fully vested and have been converted to Common Stock.

F10 · derivative.exercise_date: As previously reported on a Form 4, the reporting person was awarded 21,028 performance share units (PSUs) on September 22, 2015, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 22, 2018, the second installment of 21,028 PSUs vested at 200.0% of target, such that 10,514 shares became issuable. Of these shares, 10,603 were issued to the reporting person and the remaining 10,425 were withheld to pay the associated tax liability. The 10,514 units reported in Table II correspond to the additional shares issued in excess of 10,514 share target for the second vesting installment.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 13

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,143

Underlying: Common Stock · 10,514 shares

Expires 2018-09-22

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F10 · kind: As previously reported on a Form 4, the reporting person was awarded 21,028 performance share units (PSUs) on September 22, 2015, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 22, 2018, the second installment of 21,028 PSUs vested at 200.0% of target, such that 10,514 shares became issuable. Of these shares, 10,603 were issued to the reporting person and the remaining 10,425 were withheld to pay the associated tax liability. The 10,514 units reported in Table II correspond to the additional shares issued in excess of 10,514 share target for the second vesting installment.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 12

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,629

Underlying: Common Stock · 13,923 shares

Expires 2019-09-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: 13,923 Restricted Stock Units became fully vested and have been converted to Common Stock.

F9 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 22, 2016, one-fourth of such shares at September 22, 2017, one-fourth of such shares at September 22, 2018 and one-fourth of such shares at September 22, 2019.

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 8

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 190,632

F2 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 7

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 201,057

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · kind: 21,028 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 6

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 180,029

F2 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 5

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,932

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · kind: 13,923 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 11

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,552

Underlying: Common Stock · 26,917 shares

Expires 2019-09-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F3 · kind: 26,917 Restricted Stock Units became fully vested and have been converted to Common Stock.

F8 · derivative.exercise_date: As previously reported on a Form 4, the Reporting person was awarded 35,676 performance share units (PSUs) on September 20, 2016, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 20, 2018, the first installment of 17,838 PSUs vested at 150.9% of target, such that 26,917 shares became issuable. Of these shares 13,572 were issued to the reporting person and the remaining 13,345 were withheld to pay the associated tax liability. The 9,079 units reported in Table II correspond to the additional shares issued in excess of 17,838 share target for the first vesting installment.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 10

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 221,469

Underlying: Common Stock · 9,079 shares

Expires 2019-09-20

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F8 · kind: As previously reported on a Form 4, the Reporting person was awarded 35,676 performance share units (PSUs) on September 20, 2016, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 20, 2018, the first installment of 17,838 PSUs vested at 150.9% of target, such that 26,917 shares became issuable. Of these shares 13,572 were issued to the reporting person and the remaining 13,345 were withheld to pay the associated tax liability. The 9,079 units reported in Table II correspond to the additional shares issued in excess of 17,838 share target for the first vesting installment.

SEC source: 0001023731-18-000038 · primary_doc.xml · derivative · entry 9

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 212,390

Underlying: Common Stock · 11,975 shares

Expires 2020-09-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 11,975 Restricted Stock Units became fully vested and have been converted to Common Stock.

F7 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 19, 2017, one-fourth of such shares at September 19, 2018, one-fourth of such shares at September 19, 2019 and one-fourth of such shares at September 19, 2020.

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 4

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 173,009

F2 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,354

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: 26,917 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,437

F2 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units

SEC source: 0001023731-18-000038 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,282

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 11,975 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000032 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,365

Underlying: Common Stock · 16,892 shares

Expires 2021-09-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F5 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 19, 2018, one-fourth of such shares at September 19, 2019, one-fourth of such shares at September 19, 2020 and one-fourth of such shares at September 19, 2021.

SEC source: 0001023731-18-000032 · primary_doc.xml · nonDerivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,307

F3 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units

SEC source: 0001023731-18-000032 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,655

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: 16,892 Restricted Stock Units became fully vested and have been converted to Common Stock.

F2 · balance_after: Includes 560 shares purchased on July 31, 2018 pursuant to the company's Employee Stock Purchase Plan (ESPP).

SEC source: 0001023731-18-000016 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 241,257

Underlying: Common Stock · 2,257 shares

Expires 2018-07-01

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F3 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at July 1, 2015, one-fourth of such at July 1, 2016, one-fourth of such at July 1, 2017, and one-fourth of such at July 1, 2018.

SEC source: 0001023731-18-000016 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,514

Underlying: Common Stock · 3,749 shares

Expires 2018-07-01

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 3,749 Restricted Stock Units became fully vested and have been converted to Common Stock.

F3 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at July 1, 2015, one-fourth of such at July 1, 2016, one-fourth of such at July 1, 2017, and one-fourth of such at July 1, 2018.

SEC source: 0001023731-18-000016 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,203

F1 · kind: 3,749 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000013 · primary_doc.xml · derivative · entry 4

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 247,263

Underlying: Common Stock · 2,586 shares

Expires 2018-05-31

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F3 · derivative.exercise_date: Reporting person elected to receive quarterly and annual bonus payments in stock, as authorized by the issuer's compensation committee. Number of shares was determined by dividing bonus amount by stock closing price on May 31, 2018. Shares vest immediately.

SEC source: 0001023731-18-000013 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 249,849

Underlying: Common Stock · 4,296 shares

Expires 2018-05-31

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 4,296 Restricted Stock Units became fully vested and have been converted to Common Stock.

F3 · derivative.exercise_date: Reporting person elected to receive quarterly and annual bonus payments in stock, as authorized by the issuer's compensation committee. Number of shares was determined by dividing bonus amount by stock closing price on May 31, 2018. Shares vest immediately.

SEC source: 0001023731-18-000013 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 254,145

Underlying: Common Stock · 6,882 shares

Expires 2018-05-31

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F3 · derivative.exercise_date: Reporting person elected to receive quarterly and annual bonus payments in stock, as authorized by the issuer's compensation committee. Number of shares was determined by dividing bonus amount by stock closing price on May 31, 2018. Shares vest immediately.

SEC source: 0001023731-18-000013 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,454

F1 · kind: 4,296 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000007 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 247,263

Underlying: Common Stock · 3,243 shares

Expires 2018-03-31

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F3 · derivative.exercise_date: RSUs vest (1) up to 25% on March 31, 2016; (2) up to 50% on March 31, 2017; and (3) up to 25% on March 31, 2018 in each case subject to performance of 8x8 common stock relative to NASDAQ Composite Index during the period from grant date through such dates.

SEC source: 0001023731-18-000007 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,506

Underlying: Common Stock · 5,417 shares

Expires 2018-03-31

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 5,417 Performance-based Restricted Stock Units became fully vested and have been converted to Common Stock.

F3 · derivative.exercise_date: RSUs vest (1) up to 25% on March 31, 2016; (2) up to 50% on March 31, 2017; and (3) up to 25% on March 31, 2018 in each case subject to performance of 8x8 common stock relative to NASDAQ Composite Index during the period from grant date through such dates.

SEC source: 0001023731-18-000007 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,158

F1 · kind: 5,417 Performance-based Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-18-000005 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,741

SEC source: 0001023731-17-000052 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 255,923

Underlying: Common Stock · 3,134 shares

Expires 2018-10-21

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F3 · derivative.exercise_date: PSUs do not vest unless and until average closing price of 8x8 common stock over any 30 consecutive trading day period within 4 years from the grant date exceeds 150% of grant date closing price; then, at rate of 25% on each anniversary of grant date.

SEC source: 0001023731-17-000052 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,057

Underlying: Common Stock · 5,206 shares

Expires 2018-10-21

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 5,206 Restricted Stock Units became fully vested and have been converted to Common Stock.

F3 · derivative.exercise_date: PSUs do not vest unless and until average closing price of 8x8 common stock over any 30 consecutive trading day period within 4 years from the grant date exceeds 150% of grant date closing price; then, at rate of 25% on each anniversary of grant date.

SEC source: 0001023731-17-000052 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,557

F1 · kind: 5,206 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-17-000048 · primary_doc.xml · derivative · entry 7

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 264,263

Underlying: Common Stock · 7,693 shares

Expires 2018-09-22

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F5 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F7 · derivative.exercise_date: RSUs vest (1) 50% on September 19, 2019 and (2) 50% on September 19 2020, in each case subject to performance of 8x8's common stock relative to the Russell 2000 Index during the period from grant date through such vesting date. A 2x multiplier will be applied to the total shareholder returns (TSR) for each 1% of positive or negative relative TSR, and the number of shares earned will increase or decrease by 2% of the target number shown in table. In the event 8x8's common stock performance is below negative 30%, relative to the benchmark, no shares will be issued. Maximum number of shares issuable is two times the number shown in the table.

SEC source: 0001023731-17-000048 · primary_doc.xml · derivative · entry 6

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 271,956

Underlying: Common Stock · 12,778 shares

Expires 2018-09-22

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F2 · kind: 12,778 Performance-based Restricted Stock Units became fully vested and have been converted to Common Stock.

F7 · derivative.exercise_date: RSUs vest (1) 50% on September 19, 2019 and (2) 50% on September 19 2020, in each case subject to performance of 8x8's common stock relative to the Russell 2000 Index during the period from grant date through such vesting date. A 2x multiplier will be applied to the total shareholder returns (TSR) for each 1% of positive or negative relative TSR, and the number of shares earned will increase or decrease by 2% of the target number shown in table. In the event 8x8's common stock performance is below negative 30%, relative to the benchmark, no shares will be issued. Maximum number of shares issuable is two times the number shown in the table.

SEC source: 0001023731-17-000048 · primary_doc.xml · derivative · entry 5

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 284,734

Underlying: Common Stock · 9,957 shares

Expires 2017-09-22

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F6 · kind: As previously reported on a Form 4, the reporting person was awarded 21,028 performance share units (PSUs) on September 22, 2015, of which 50% were eligible to vest on each of the second and third anniversaries of the award date. On September 22, 2017, the first installment of 10,514 PSUs vested at 194.71 % of target, such that 20,471 shares became issuable. Of these shares, 7,693 were issued to the reporting person and the remaining 5,129 were withheld to pay the associated tax liability. The 9,957 units reported in Table II correspond to the additional shares issued in excess of 10,514 share target for the first vesting installment.

SEC source: 0001023731-17-000048 · primary_doc.xml · derivative · entry 4

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,777

Underlying: Common Stock · 5,232 shares

Expires 2019-09-22

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F5 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F4 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 22, 2016, one-fourth of such at September 22, 2017, one-fourth of such at September 22, 2018, and one-fourth of such at September 22, 2019.

SEC source: 0001023731-17-000048 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,009

Underlying: Common Stock · 8,691 shares

Expires 2019-09-22

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 8,691 Restricted Stock Units became fully vested and have been converted to Common Stock.

F4 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 22, 2016, one-fourth of such at September 22, 2017, one-fourth of such at September 22, 2018, and one-fourth of such at September 22, 2019.

SEC source: 0001023731-17-000048 · primary_doc.xml · nonDerivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,351

F2 · kind: 12,778 Performance-based Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-17-000048 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,573

F1 · kind: 8,691 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-17-000042 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 288,700

Underlying: Common Stock · 4,500 shares

Expires 2020-09-20

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F4 · kind: 4,500 Restricted Stock Units become fully vested and have been withheld due to payment of tax liability incident to vesting of Restricted Stock Unit.

F3 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 20, 2017, one-fourth of such shares at September 20, 2018, one-fourth of such shares at September 20, 2019 and one-fourth of such shares at September 20, 2020.

SEC source: 0001023731-17-000042 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 293,200

Underlying: Common Stock · 7,475 shares

Expires 2020-09-20

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F1 · kind: 7,475 Restricted Stock Units became fully vested and have been converted to Common Stock.

F3 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 20, 2017, one-fourth of such shares at September 20, 2018, one-fourth of such shares at September 20, 2019 and one-fourth of such shares at September 20, 2020.

SEC source: 0001023731-17-000042 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,882

F1 · kind: 7,475 Restricted Stock Units became fully vested and have been converted to Common Stock.

SEC source: 0001023731-17-000036 · primary_doc.xml · derivative · entry 2

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,675

Underlying: Common Stock · 67,568 shares

Expires 2021-09-19

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F3 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at September 19, 2018, one-fourth of such shares at September 19, 2019, one-fourth of such shares at September 19, 2020 and one-fourth of such shares at September 19, 2021.

SEC source: 0001023731-17-000036 · primary_doc.xml · derivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 233,107

Underlying: Common Stock · 55,388 shares

Expires 2020-09-19

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F2 · derivative.exercise_date: RSUs vest (1) 50% on September 19, 2019 and (2) 50% on September 19 2020, in each case subject to performance of 8x8's common stock relative to the Russell 2000 Index during the period from grant date through such vesting date. A 2x multiplier will be applied to the total shareholder returns (TSR) for each 1% of positive or negative relative TSR, and the number of shares earned will increase or decrease by 2% of the target number shown in table. In the event 8x8's common stock performance is below negative 30%, relative to the benchmark, no shares will be issued. Maximum number of shares issuable is two times the number shown in the table.

SEC source: 0001023731-17-000016 · primary_doc.xml · nonDerivative · entry 1

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,106

F1 · price: This transaction was executed in multiple trades at prices ranging from $12.70 to $12.83. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001023731-17-000012 · primary_doc.xml · derivative · entry 3

GENOVESE MARY ELLEN P · CIK 0001242007 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 177,719

Underlying: Common Stock · 2,257 shares

Expires 2024-07-22

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of EGHT common stock.

F3 · kind: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F2 · derivative.exercise_date: This award vests at the rate of one-fourth of such shares at July 1, 2015, one-fourth of such shares at July 1, 2016, one-fourth of such shares at July 1, 2017 and one-fourth of such shares at July 1, 2018.