ATEN

SEC source: 0001209191-17-043997 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,662

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average price of the shares sold, which ranged from $8.08 to $8.25 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-042529 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,661,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.34 to $8.70 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-041637 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,686,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.375 to $8.52 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-040185 · doc4.xml · derivative · entry 2

Constantino Thomas · CIK 0001708390 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,000

Underlying: Common Stock · 135,000 shares

Expires 2027-06-14

F2 · derivative.exercise_date: One-fourth (1/4) of the shares subject to the option will vest on the first anniversary of the Vesting Commencement Date (6/12/2017), and the remaining shares will vest in equal monthly installments over the following 36 months, provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-040185 · doc4.xml · nonDerivative · entry 1

Constantino Thomas · CIK 0001708390 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,000

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (7/5/2017), provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-039808 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,711,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.455 to $8.56 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-038288 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,736,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.325 to $8.46 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-037692 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,761,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.415 to $8.58 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-037688 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,662

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average price of the shares sold, which ranged from $8.16 to $8.45 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

F3 · balance_after: Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001179110-17-008431 · edgar.xml · nonDerivative · entry 1

SUMMIT PARTNERS L P · CIK 0000830588 · 10% owner · Manager of GP of 10% owner

SUMMIT MASTER COMPANY, LLC · CIK 0001627278 · Manager of Manager of 10% owne

SUMMIT PARTNERS GE VIII, L.P. · CIK 0001593029 · GP of 10% owner

Summit Partners GE VIII, LLC · CIK 0001593948 · GP of 10% owner

Summit Partners Growth Equity Fund VIII-A, L.P. · CIK 0001514386 · 10% owner

Summit Partners Growth Equity Fund VIII-B, L.P. · CIK 0001514388 · 10% owner

Summit Investors I, LLC · CIK 0001435565 · 10% owner

Summit Investors I (UK), L.P. · CIK 0001494616 · 10% owner

Summit Investors Management, LLC · CIK 0001507545 · Manager and GP of 10% Owner

MANNION MARTIN J · CIK 0001018067 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes.

Disclosed balance after: 9,492,417

F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle solely by delivery of an equal number of shares of Common Stock on the first anniversary of the grant date, subject to the Reporting Person's continued service on the board of directors as of such date. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales.

F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 64,571 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P.

F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee responsible for voting and investment decisions with respect to the Issuer.

F4 · ownership.nature: Summit Partners, L.P., through a two-person Investment Committee responsible for voting and investment decisions with respect to the Issuer, currently composed of Martin J. Mannion and Peter Y. Chung, has voting and dispositive authority over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities mentioned herein, Summit Partners, L.P., Summit Master Company, LLC, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of their pecuniary interest therein.

SEC source: 0001209191-17-037209 · doc4.xml · nonDerivative · entry 1

Natarajan Shiva Kumar · CIK 0001425992 · Interim CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,737

F1 · balance_after: Reflects shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001179110-17-008430 · edgar.xml · nonDerivative · entry 1

CHUNG PETER Y · CIK 0001239366 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes.

Disclosed balance after: 9,492,417

F1 · shares: Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle solely by delivery of an equal number of shares of Common Stock on the the first anniversary of the grant date, subject to the Reporting Person's continued service on the board of directors as of such date. Mr. Chung holds any restricted stock units for the benefit of Summit Partners, L.P., which he has empowered to determine when the underlying shares will be sold and which is entitled to the proceeds of any such sales.

F2 · balance_after: The Common Stock is held as follows: 6,873,136 shares in the name of Summit Partners Growth Equity Fund VIII-A, L.P.; 2,510,989 shares in the name of Summit Partners Growth Equity Fund VIII-B, L.P.; 40,186 shares in the name of Summit Investors I, LLC; 3,535 shares in the name of Summit Investors I (UK), L.P.; 64,571 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P.

F3 · ownership.nature: Summit Partners, L.P. is the managing member of Summit Partners GE VIII, LLC, which is the general partner of Summit Partners GE VIII, L.P., which is the general partner of each of Summit Partners Growth Equity Fund VIII-A, L.P. and Summit Partners Growth Equity Fund VIII-B, L.P. Summit Master Company, LLC is the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors I, LLC and the general partner of Summit Investors I (UK), L.P. Summit Master Company, LLC, as the managing member of Summit Investors Management, LLC has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its Investment Committee responsible for voting and investment decisions with respect to the Issuer.

F4 · ownership.nature: Summit Partners, L.P., through a two-person Investment Committee responsible for voting and investment decisions with respect to the Issuer, currently composed of Martin J. Mannion and Peter Y. Chung, has voting and dispositive authority over the shares held by each of these entities and therefore may be deemed to beneficially own such shares. In addition, Mr. Chung is a member of Summit Master Company, LLC. Each of the Summit entities mentioned herein, Summit Partners, L.P., Summit Master Company, LLC, Mr. Mannion and Mr. Chung disclaims beneficial ownership of the shares of Common Stock and the restricted stock units, except to the extent of their pecuniary interest therein.

SEC source: 0001209191-17-037218 · doc4.xml · nonDerivative · entry 1

SALSBURY PHILLIP J · CIK 0001358689 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,571

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will vest on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service as of such date.

SEC source: 0001209191-17-037213 · doc4.xml · nonDerivative · entry 1

Henricks Alan S. · CIK 0001513957 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,571

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will vest on the earlier of the first anniversary of the grant date or the date of the Issuer's next Annual Meeting, subject to the Reporting Person's continued service as of such date.

SEC source: 0001209191-17-035799 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,786,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.165 to $8.34 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-033934 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,811,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.03 to $8.27 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-033355 · doc4.xml · nonDerivative · entry 1

Natarajan Shiva Kumar · CIK 0001425992 · Interim CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,667

F1 · shares: Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of restricted stock units.

SEC source: 0001209191-17-031967 · doc4.xml · nonDerivative · entry 1

SMETS RAYMOND J · CIK 0001236194 · EVP of Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,060

SEC source: 0001209191-17-031528 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,836,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.145 to $8.26 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-029613 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,861,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $7.845 to $8.115 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-029634 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 198,162

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average price of the shares sold, which ranged from $7.85 to $8.12 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-028920 · doc4.xml · nonDerivative · entry 2

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,886,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: This is the weighted average sale price of the shares, which ranged from $9.17 to $9.21 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-028920 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,887,238

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $7.77 to $8.72 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-027824 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,911,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.715 to $8.86 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-026931 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,936,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.815 to $8.93 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-026244 · doc4.xml · nonDerivative · entry 1

Becker Neil Wu · CIK 0001670674 · VP Worldwide Mktg and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,118

F1 · shares: Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of restricted stock units.

SEC source: 0001209191-17-026243 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,162

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average price of the shares sold, which ranged from $8.81 to $9.12 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-026067 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,961,538

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $8.935 to $9.17 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-025220 · doc4.xml · nonDerivative · entry 1

Becker Neil Wu · CIK 0001670674 · VP Worldwide Mktg and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,652

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (2/12/2017), provided that the Reporting Person continues to serve through each vesting date.

F2 · balance_after: Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001209191-17-025216 · doc4.xml · nonDerivative · entry 1

Jalan Rajkumar · CIK 0001601653 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,132

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (2/12/2017), provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-025215 · doc4.xml · nonDerivative · entry 1

Natarajan Shiva Kumar · CIK 0001425992 · Interim CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,479

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). The RSUs will vest in equal quarterly increments over a four year period that began on 2/12/2017, provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-025217 · doc4.xml · nonDerivative · entry 1

SMETS RAYMOND J · CIK 0001236194 · EVP of Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,950

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (2/12/2017), provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-025211 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,986,538

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (2/12/2017), provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-025218 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,162

F1 · shares: Each share is represented by a Restricted Stock Unit ("RSU"). One-fourth (1/4) of the total RSUs will vest on each of the first four (4) anniversaries of the Vesting Commencement Date (2/12/2017), provided that the Reporting Person continues to serve through each vesting date.

SEC source: 0001209191-17-023561 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,864,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.05 to $9.19 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-022973 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,889,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.145 to $9.295 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-021357 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,914,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.21 to $9.27 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-019827 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,939,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.105 to $9.24 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-017518 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,593

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average price of the shares sold, which ranged from $9.49 to $9.72 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-016674 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,964,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.41 to $9.64 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-013954 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,989,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.42 to $9.58 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-012920 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,014,788

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · price: This is the weighted average sale price of the shares, which ranged from $9.415 to $9.68 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

SEC source: 0001209191-17-011031 · doc4.xml · nonDerivative · entry 1

Straughn Greg · CIK 0001601654 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,561

F1 · shares: Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of performance restricted stock units.

SEC source: 0001209191-17-011033 · doc4.xml · nonDerivative · entry 1

SMETS RAYMOND J · CIK 0001236194 · EVP of Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,293

F1 · shares: Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of performance restricted stock units.

SEC source: 0001209191-17-011032 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,593

F1 · shares: Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of performance restricted stock units.

SEC source: 0001209191-17-008813 · doc4.xml · nonDerivative · entry 1

Jalan Rajkumar · CIK 0001601653 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 360,300

F1 · shares: Each share is represented by a Performance Restricted Stock Unit ("PSU"). Each PSU represents a contingent right to receive one share of ATEN common stock. The PSUs will vest in equal annual increments over a four year period that began on February 12, 2016, subject to the Reporting Person's continued service through each such vest date.

F2 · balance_after: Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001209191-17-008822 · doc4.xml · nonDerivative · entry 1

Straughn Greg · CIK 0001601654 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,833

F1 · shares: Each share is represented by a Performance Restricted Stock Unit ("PSU"). Each PSU represents a contingent right to receive one share of ATEN common stock. The PSUs will vest in equal annual increments over a four year period that began on February 12, 2016, subject to the Reporting Person's continued service through each such vest date.

F2 · balance_after: Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001209191-17-008819 · doc4.xml · nonDerivative · entry 1

SMETS RAYMOND J · CIK 0001236194 · EVP of Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,758

F1 · shares: Each share is represented by a Performance Restricted Stock Unit ("PSU"). Each PSU represents a contingent right to receive one share of ATEN common stock. The PSUs will vest in equal annual increments over a four year period that began on February 12, 2016, subject to the Reporting Person's continued service through each such vest date.

F2 · balance_after: Includes shares acquired by the Reporting Person pursuant to the Issuer's Employee Stock Purchase Plan.

SEC source: 0001209191-17-008807 · doc4.xml · nonDerivative · entry 1

CHEN LEE · CIK 0001206124 · Director · CEO and President · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,039,788

F1 · shares: Each share is represented by a Performance Restricted Stock Unit ("PSU"). Each PSU represents a contingent right to receive one share of ATEN common stock. The PSUs will vest in equal annual increments over a four year period that began on February 12, 2016, subject to the Reporting Person's continued service through each such vest date.

SEC source: 0001209191-17-008808 · doc4.xml · nonDerivative · entry 1

COCHRAN ROBERT D · CIK 0001358721 · Director · EVP Legal & Corp Collaboration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,430

F1 · shares: Each share is represented by a Performance Restricted Stock Unit ("PSU"). Each PSU represents a contingent right to receive one share of ATEN common stock. The PSUs will vest in equal annual increments over a four year period that began on February 12, 2016, subject to the Reporting Person's continued service through each such vest date.