GLAUKOS Corp — Director's Dealing 2015

Jul 1, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GLAUKOS Corp (GKOS)
CIK: 0001192448
Period of Report: 2015-06-30

Reporting Person: Domain Partners VIII, L.P. (10% Owner)
Reporting Person: BLAIR JAMES C (10% Owner)
Reporting Person: DOVEY BRIAN H (10% Owner)
Reporting Person: TREU JESSE I (10% Owner)
Reporting Person: SCHOEMAKER KATHLEEN K (10% Owner)
Reporting Person: VITULLO NICOLE (10% Owner)
Reporting Person: Halak Brian K (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-06-30	Common Stock	C	876083	—	Acquired	876083	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-06-30	Series E Preferred Stock	$	C	589100	Disposed		Common Stock (589100)	Direct
2015-06-30	Series F Preferred Stock	$	C	286983	Disposed		Common Stock (286983)	Direct

Footnotes

F1: All outstanding Preferred Stock automatically converted into Common Stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering (the "IPO") for no additional consideration. The Preferred Stock had no expiration date.

F2: The securities reported as directly beneficially owned by the designated Reporting Person may be deemed to be indirectly beneficially owned by each of the Reporting Owners listed below, each of whom is a managing member of One Palmer Square Associates VIII, LLC, the sole general partner of the designated Reporting Person. Pursuant to Instruction 4(b)(iv) of Form 4, each such individual has elected to report as indirectly beneficially owned the entire number of securities owned by the designated Reporting Person, however each of them disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein and/or that are not actually distributed to him or her.

F3: As managing members of the sole general partner of Domain Partners IV, L.P., each Reporting Owner listed below (except for Nicole Vitullo and Brian K. Halak) may also be deemed to indirectly beneficially own the securities of the Issuer held by Domain Partners IV, L.P., as reported on a Form 4 for Domain Partners IV, L.P., filed on the same date as this Form 4.

F4: As managing members of the sole general partner of DP VIII Associates, L.P., each Reporting Owner listed below may also be deemed to indirectly beneficially own the securities of the Issuer held by DP VIII Associates, L.P., as reported on a Form 4 for DP VIII Associates, L.P. filed on the same date as this Form 4.

F5: As managing members of the sole general partner of DP IV Associates, L.P., each Reporting Owner listed below (except for Nicole Vitullo and Brian K. Halak) may also be deemed to indirectly beneficially own the securities of the Issuer held by DP IV Associates, L.P., as reported on a Form 4 for DP IV Associates, L.P. filed on the same date as this Form 4.

F6: As managing members of Domain Associates, LLC, each Reporting Owner listed below may also be deemed to indirectly beneficially own 63,200 shares of Common Stock held by Domain Associates, LLC. Pursuant to Instruction 4(b)(iv) of Form 4, each such individual has elected to report as indirectly beneficially owned the entire number of securities owned by Domain Associates, LLC, however each of them disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein and/or that are not actually distributed to him or her.