GKOS

SEC source: 0001104659-19-035744 · a4.xml · nonDerivative · entry 2

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,063

F2 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F1 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-035744 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,563

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 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-034655 · a4.xml · nonDerivative · entry 2

Kliman Gilbert H · CIK 0001293171 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote below

Disclosed balance after: 7,995

F1 · kind: The Reporting Person transferred these shares to InterWest Venture Management Company ("IVMC"), for no consideration, pursuant to an agreement between the Reporting Person and InterWest Partners IX, LP ("IP9") relating to compensation received in connection with his service as a director of the Issuer.

F3 · ownership.nature: Consists of (i) 3,362 shares owned by IP9 and (ii) 4,633 shares owned by IVMC. The Reporting Person is a Managing Director of the General Partner of IP9 and an owner, director and officer of IVMC. The Reporting Person has shared voting and investment control over shares owned by IP9 and IVMC, and disclaims beneficial ownership of those securities, except to the extent of his pecuniary interest therein.

SEC source: 0001104659-19-034655 · a4.xml · nonDerivative · entry 1

Kliman Gilbert H · CIK 0001293171 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,830

F1 · kind: The Reporting Person transferred these shares to InterWest Venture Management Company ("IVMC"), for no consideration, pursuant to an agreement between the Reporting Person and InterWest Partners IX, LP ("IP9") relating to compensation received in connection with his service as a director of the Issuer.

F2 · balance_after: Consists of 3,830 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033245 · a4.xml · nonDerivative · entry 1

Hoffmeister David F · CIK 0001305975 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,586

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 3,830 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033244 · a4.xml · nonDerivative · entry 1

Kliman Gilbert H · CIK 0001293171 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,463

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 3,830 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033241 · a4.xml · nonDerivative · entry 1

WEISNER AIMEE S · CIK 0001227308 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,463

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 3,830 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033243 · a4.xml · nonDerivative · entry 1

Foley Mark J · CIK 0001529196 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,286

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 2,653 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033246 · a4.xml · nonDerivative · entry 1

LINK WILLIAM J PHD · CIK 0001228684 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,426

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 4,793 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-033242 · a4.xml · nonDerivative · entry 1

Stapley Marc · CIK 0001539796 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,225

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 4,044 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-030313 · a4.xml · derivative · entry 3

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,343

Underlying: Common Stock · 3,647 shares

Expires 2027-05-05

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 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F3 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-030313 · a4.xml · nonDerivative · entry 2

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,063

F2 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F1 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-030313 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,710

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 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-029779 · a4.xml · derivative · entry 6

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,045

Underlying: Common Stock · 2,500 shares

Expires 2028-03-14

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 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F3 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-029779 · a4.xml · derivative · entry 5

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,990

Underlying: Common Stock · 103 shares

Expires 2027-05-05

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 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F3 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-029779 · a4.xml · nonDerivative · entry 4

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,063

F2 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F1 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-029779 · a4.xml · nonDerivative · entry 3

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,563

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 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-029779 · a4.xml · nonDerivative · entry 2

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,063

F2 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F1 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-029779 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,166

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 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-027860 · a4.xml · derivative · entry 5

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,290

Underlying: Common Stock · 4,010 shares

Expires 2029-03-14

F6 · kind: Pursuant to the DRO referenced in footnote (3) above, the Reporting Person's economic interest in a portion of this stock option grant is now held by the Reporting Person's former spouse. While these options were retained by the Reporting Person, his former spouse will receive the economic benefit from the portion of the grant representing the former spouse's economic interest, including in connection with exercises thereof and sales of the common stock underlying such portion. Accordingly, the Reporting Person will not report beneficial ownership or dispositions of the portion of the option grant representing the former spouse's economic interest, nor will the Reporting Person report beneficial ownership or acquisitions or dispositions of the underlying common stock, in future Section 16(a) filings.

F7 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-027860 · a4.xml · derivative · entry 4

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,545

Underlying: Common Stock · 24,955 shares

Expires 2028-03-14

F6 · kind: Pursuant to the DRO referenced in footnote (3) above, the Reporting Person's economic interest in a portion of this stock option grant is now held by the Reporting Person's former spouse. While these options were retained by the Reporting Person, his former spouse will receive the economic benefit from the portion of the grant representing the former spouse's economic interest, including in connection with exercises thereof and sales of the common stock underlying such portion. Accordingly, the Reporting Person will not report beneficial ownership or dispositions of the portion of the option grant representing the former spouse's economic interest, nor will the Reporting Person report beneficial ownership or acquisitions or dispositions of the underlying common stock, in future Section 16(a) filings.

F7 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-027860 · a4.xml · derivative · entry 3

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,093

Underlying: Common Stock · 111,907 shares

Expires 2027-05-05

F6 · kind: Pursuant to the DRO referenced in footnote (3) above, the Reporting Person's economic interest in a portion of this stock option grant is now held by the Reporting Person's former spouse. While these options were retained by the Reporting Person, his former spouse will receive the economic benefit from the portion of the grant representing the former spouse's economic interest, including in connection with exercises thereof and sales of the common stock underlying such portion. Accordingly, the Reporting Person will not report beneficial ownership or dispositions of the portion of the option grant representing the former spouse's economic interest, nor will the Reporting Person report beneficial ownership or acquisitions or dispositions of the underlying common stock, in future Section 16(a) filings.

F7 · derivative.exercise_date: These options vest over four years from the grant date, with 25% vesting on the first anniversary of the grant date and the remaining amount vesting in equal monthly installments over the following three years.

SEC source: 0001104659-19-027860 · a4.xml · nonDerivative · entry 2

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,063

F3 · kind: In order to comply with the terms of a domestic relations order ("DRO") in connection with a marital dissolution, the Reporting Person's former spouse now holds the economic interest, and the Reporting Person no longer has any pecuniary interest, in the following securities: (i) 5,265 shares of common stock of the Issuer and (2) 18,458 restricted stock units that have not yet vested or been delivered to the Reporting Person, which were previously reported as directly owned by the Reporting Person. While the Reporting Person retains possession of the common stock and restricted stock units until they are sold in connection with the DRO, the Reporting Person's former spouse will receive the economic benefits from, and the Reporting Person will have no discretion with respect to, such securities. (Continued in footnote 4).

F4 · kind: Accordingly, the Reporting Person will not report beneficial ownership or dispositions of these securities (including restricted stock units) in future Section 16(a) reports, including to the extent such securities are sold pursuant to a Rule 10b5-1 trading plan that may be adopted by the Reporting Person that includes these securities. Likewise, the number of shares of common stock of the Issuer that may be reported as withheld to satisfy tax obligations in Table 1 will not include the shares withheld with respect to the portion of the restricted stock units representing the former spouse's economic interest.

F5 · balance_after: Includes 37,853 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-027860 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,786

F1 · kind: Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on May 5, 2017, with the vesting schedule in four equal installments on May 5, 2018, May 5, 2019, May 5, 2020 and May 5, 2021.

F2 · balance_after: Includes 56,311 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-019729 · a4.xml · nonDerivative · entry 2

Burns Thomas William · CIK 0001644557 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,524

F3 · shares: Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on April 1, 2018.

F2 · balance_after: Includes 19,416 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-019728 · a4.xml · nonDerivative · entry 2

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,662

F3 · shares: Consists of shares withheld by the Issuer with respect to income taxes payable by the Reporting Person upon vesting and delivery of shares of common stock underlying restricted stock units previously granted by the Issuer on April 1, 2018.

F2 · balance_after: Includes 6,311 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-015710 · a4.xml · derivative · entry 2

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,300

Underlying: Common Stock · 13,300 shares

Expires 2029-03-14

F3 · derivative.exercise_date: Granted pursuant to the Issuer's 2015 Omnibus Incentive Compensation Plan. Vests over a four-year period, with 25% to vest on the 1st anniversary of the grant date and 1/48th of the total to vest each month thereafter.

SEC source: 0001104659-19-015710 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,005

F1 · security: Granted by the Issuer in the form of restricted stock units which vest over a four-year period, with 25% to vest on each anniversary of the grant date.

F2 · balance_after: Includes 81,311 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-015709 · a4.xml · derivative · entry 7

Burns Thomas William · CIK 0001644557 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2029-03-14

F4 · derivative.exercise_date: Granted pursuant to the Issuer's 2015 Omnibus Incentive Compensation Plan. Vests over a four-year period, with 25% to vest on the 1st anniversary of the grant date and 1/48th of the total to vest each month thereafter.

SEC source: 0001104659-19-015709 · a4.xml · nonDerivative · entry 1

Burns Thomas William · CIK 0001644557 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,416

F1 · security: Granted by the Issuer in the form of restricted stock units which vest over a four-year period, with 25% to vest on each anniversary of the grant date.

F2 · balance_after: Consists of 19, 416 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-015708 · a4.xml · derivative · entry 2

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,300

Underlying: Common Stock · 13,300 shares

Expires 2029-03-14

F3 · derivative.exercise_date: Granted pursuant to the Issuer's 2015 Omnibus Incentive Compensation Plan. Vests over a four-year period, with 25% to vest on the 1st anniversary of the grant date and 1/48th of the total to vest each month thereafter.

SEC source: 0001104659-19-015708 · a4.xml · nonDerivative · entry 1

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 156,311

F1 · security: Granted by the Issuer in the form of restricted stock units which vest over a four-year period, with 25% to vest on each anniversary of the grant date.

F2 · balance_after: Includes 6,311 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-019729 · a4.xml · nonDerivative · entry 1

Burns Thomas William · CIK 0001644557 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,379

F1 · shares: Represents shares of common stock subject to a restricted stock unit award previously granted by the Issuer on April 1, 2018 pursuant to the Reporting Person's election to receive his annual bonus for 2018 in the form of restricted stock units rather than cash (the "Bonus Election"). The Compensation Committee determined on March 14, 2019 the annual bonus payable to the Reporting Person pursuant to the Issuer's 2018 executive bonus plan and the number of stock units earned by the Reporting Person in accordance with the Bonus Election, subject to continued employment through the vesting date. The restricted stock units vested on April 1, 2019 and are payable on a one-for-one basis in shares of the Issuer's common stock.

F2 · balance_after: Includes 19,416 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-019728 · a4.xml · nonDerivative · entry 1

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,906

F1 · shares: Represents shares of common stock subject to a restricted stock unit award previously granted by the Issuer on April 1, 2018 pursuant to the Reporting Person's election to receive a portion of his annual bonus for 2018 in the form of restricted stock units rather than cash (the "Bonus Election"). The Compensation Committee determined on March 14, 2019 the annual bonus payable to the Reporting Person pursuant to the Issuer's 2018 executive bonus plan and the number of stock units earned by the Reporting Person in accordance with the Bonus Election, subject to continued employment through the vesting date. The restricted stock units vested on April 1, 2019 and are payable on a one-for-one basis in shares of the Issuer's common stock.

F2 · balance_after: Includes 6,311 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001104659-19-013430 · a4.xml · nonDerivative · entry 5

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F6 · price: This transaction was executed in multiple trades at prices ranging from $67.46 to $67.91. The price reported above reflects the weighted average 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: 0001104659-19-013430 · a4.xml · nonDerivative · entry 4

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,727

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F5 · price: This transaction was executed in multiple trades at prices ranging from $66.43 to $67.39. The price reported above reflects the weighted average 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: 0001104659-19-013430 · a4.xml · nonDerivative · entry 3

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,803

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F4 · price: This transaction was executed in multiple trades at prices ranging from $65.40 to $66.39. The price reported above reflects the weighted average 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: 0001104659-19-013430 · a4.xml · nonDerivative · entry 2

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,604

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F3 · price: This transaction was executed in multiple trades at prices ranging from $68.12 to $68.36. The price reported above reflects the weighted average 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: 0001104659-19-013430 · a4.xml · nonDerivative · entry 1

Calcaterra Chris M. · CIK 0001640771 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 193,344

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F2 · price: This transaction was executed in multiple trades at prices ranging from $67.12 to $68.11. The price reported above reflects the weighted average 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: 0001104659-19-009831 · a4.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,694

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F2 · price: This transaction was executed in multiple trades at prices ranging from $70.00 to $70.195. The price reported above reflects the weighted average 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.

F3 · balance_after: The reported amount reflects (1) a transfer of 6,758 shares of Glaukos common stock made by the reporting person pursuant to a domestic relations order exempt from reporting pursuant to Section 16a-12 under the U.S. Securities Exchange Act of 1934, as amended, and (2) 1,335 shares acquired by the reporting person pursuant to the stockholder-approved Glaukos 2015 Employee Stock Purchase Plan.

SEC source: 0001562180-19-000318 · primarydocument.xml · nonDerivative · entry 1

Hoffmeister David F · CIK 0001305975 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,933

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 5,810 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001562180-19-000319 · primarydocument.xml · nonDerivative · entry 1

Kliman Gilbert H · CIK 0001293171 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,810

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 5,810 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001562180-19-000314 · primarydocument.xml · nonDerivative · entry 1

LINK WILLIAM J PHD · CIK 0001228684 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,773

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Consists of 6,773 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001562180-19-000316 · primarydocument.xml · nonDerivative · entry 1

WEISNER AIMEE S · CIK 0001227308 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,810

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Consists of 5,810 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001562180-19-000315 · primarydocument.xml · nonDerivative · entry 1

Stapley Marc · CIK 0001539796 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,572

F1 · security: Granted by the Issuer in the form of restricted stock units that vest in full on the one-year anniversary of the grant date and are payable in an equivalent number of shares of the Issuer's common stock.

F2 · balance_after: Includes 6,024 restricted stock units that have not yet vested or been delivered to the Reporting Person.

SEC source: 0001562180-18-004746 · primarydocument.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,117

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F2 · price: This transaction was executed in multiple trades at prices ranging from $60.00 to $60.23. The price reported above reflects the weighted average 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: 0001562180-18-004714 · primarydocument.xml · nonDerivative · entry 1

Gilliam Joseph E · CIK 0001705850 · CFO, SVP Corporate Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,117

F1 · kind: These trades were made pursuant to a Rule 10b5-1 trading plan with pre-determined share amounts and prices.

F2 · price: This transaction was executed in multiple trades at prices ranging from $57.405 to $58.86. The price reported above reflects the weighted average 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: 0001562180-18-004576 · primarydocument.xml · nonDerivative · entry 4

LINK WILLIAM J PHD · CIK 0001228684 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · see footnote

Disclosed balance after: 40,479

F4 · price: This transaction was executed in multiple trades at prices ranging from $58.10 to $58.37. The price reported above reflects the weighted average 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.

F2 · ownership.nature: The shares are held by The Link Family Trust (the "Link Trust") for the benefit of William J. Link. William J. Link is a trustee of the Link Trust. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001562180-18-004576 · primarydocument.xml · nonDerivative · entry 3

LINK WILLIAM J PHD · CIK 0001228684 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · see footnote

Disclosed balance after: 41,779

F3 · price: This transaction was executed in multiple trades at prices ranging from $57.00 to $57.98. The price reported above reflects the weighted average 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.

F2 · ownership.nature: The shares are held by The Link Family Trust (the "Link Trust") for the benefit of William J. Link. William J. Link is a trustee of the Link Trust. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001562180-18-004576 · primarydocument.xml · nonDerivative · entry 2

LINK WILLIAM J PHD · CIK 0001228684 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · see footnote

Disclosed balance after: 67,504

F2 · ownership.nature: The shares are held by The Link Family Trust (the "Link Trust") for the benefit of William J. Link. William J. Link is a trustee of the Link Trust. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his proportionate pecuniary interest therein.