# EDGAR Filing Document

**Accession Number:** 0001644557
**File Stem:** 0001104659-23-021618
**Filing Date:** 2023-2
**Character Count:** 9077
**Document Hash:** 43e14369f82c71646911a5026878d6e0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-021618.hdr.sgml**: 20230214

**ACCESSION NUMBER**: 0001104659-23-021618

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230214

**DATE AS OF CHANGE**: 20230214

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GLAUKOS Corp
- **CENTRAL INDEX KEY:** 0001192448
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-89252
- **FILM NUMBER:** 23629239

**BUSINESS ADDRESS:**
- **STREET 1:** 229 AVENIDA FABRICANTE
- **CITY:** SAN CLEMENTE
- **STATE:** CA
- **ZIP:** 92672
- **BUSINESS PHONE:** 949-367-9600

**MAIL ADDRESS:**
- **STREET 1:** 229 AVENIDA FABRICANTE
- **CITY:** SAN CLEMENTE
- **STATE:** CA
- **ZIP:** 92672

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GLAUKOS CORP
- **DATE OF NAME CHANGE:** 20020925
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Burns Thomas William
- **CENTRAL INDEX KEY:** 0001644557

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**MAIL ADDRESS:**
- **STREET 1:** C/O GLAUKOS CORPORATION,
- **STREET 2:** 26051 MERIT CIRCLE, SUITE 103
- **CITY:** LAGUNA HILLS
- **STATE:** CA
- **ZIP:** 92653

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 13G**

**(Amendment No. 7)\***

Under the Securities Exchange Act of 1934

**GLAUKOS CORPORATION**

(Name of Issuer)

**Common Stock**

(Title of Class of Securities)

**377322102**

(CUSIP Number)

**December 31, 2022**

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

◻ Rule 13d-1(b)

◻ Rule 13d-1(c)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⌧ Rule
13d-1(d)

\*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes).

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp; **CUSIP No. 377322102**<br>| &nbsp;&nbsp;**SCHEDULE 13G** | &nbsp;&nbsp;**Page 2 of 5 Pages** |

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|:---|:---|
| &nbsp;&nbsp;1 | &nbsp;&nbsp; NAMES OF REPORTING PERSONS<br>Thomas W. Burns |
| &nbsp;&nbsp;2 | &nbsp;&nbsp; CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) ◻<br> (b) ◻ |
| &nbsp;&nbsp;3 | &nbsp;&nbsp; SEC USE ONLY<br>|
| &nbsp;&nbsp;4 | &nbsp;&nbsp; CITIZENSHIP OR PLACE OF ORGANIZATION<br>USA<br>|

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; <br> NUMBER OF<br>SHARES<br>BENEFICIALLY<br>OWNED BY<br>EACH<br>REPORTING<br>PERSON WITH  | &nbsp;&nbsp;5 |
| &nbsp;&nbsp;&nbsp; <br> NUMBER OF<br>SHARES<br>BENEFICIALLY<br>OWNED BY<br>EACH<br>REPORTING<br>PERSON WITH  | &nbsp;&nbsp;6 &nbsp;&nbsp; SHARED VOTING POWER<br>100,000<sup>(2)</sup><br>|
| &nbsp;&nbsp;&nbsp; <br> NUMBER OF<br>SHARES<br>BENEFICIALLY<br>OWNED BY<br>EACH<br>REPORTING<br>PERSON WITH  | &nbsp;&nbsp;7 &nbsp;&nbsp; SOLE DISPOSITIVE POWER<br>2,707,641<sup>(1)</sup> <br>|
| &nbsp;&nbsp;&nbsp; <br> NUMBER OF<br>SHARES<br>BENEFICIALLY<br>OWNED BY<br>EACH<br>REPORTING<br>PERSON WITH  | &nbsp;&nbsp;8 &nbsp;&nbsp; SHARED DISPOSITIVE POWER<br>100,000<sup>(2)</sup><br>|

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| | |
|:---|:---|
| &nbsp;&nbsp;9 | &nbsp;&nbsp; AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>2,807,641<br>|
| &nbsp;&nbsp;10 | &nbsp;&nbsp; CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ◻<br>|
| &nbsp;&nbsp;11 | &nbsp;&nbsp; PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.71%<sup>(3)</sup><br>|
| &nbsp;&nbsp;12 | &nbsp;&nbsp; TYPE OF REPORTING PERSON<br>IN<br>|

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&nbsp;&nbsp;&nbsp;&nbsp;(1) Includes (i) 1,378,261 shares issuable upon the exercise of options that are currently
exercisable or will vest and become exercisable, and shares that will be delivered upon the vesting of restricted stock units, within
60 days of December 31, 2022, (ii) 593,426 shares held by Mr. Burns, (iii) 238,107 shares held by the Burns Annuity Trust as of December
31, 2022, of which Mr. Burns is a beneficiary and co-Trustee, (iii) 120,000 shares held by the Burns Charitable Remainder Trust as of
December 31, 2022, of which Mr. Burns is a beneficiary and co-Trustee, (iv) 277,847 shares held by the Burns Family Trust as of December
31, 2022, of which Mr. Burns is a beneficiary and co-Trustee and (v) 100,000 shares held by the Thomas W. Burns Irrevocable Trust as of
December 31, 2022, of which Mr. Burns is a beneficiary.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Represents 100,000 shares held by the Janet M. Burns Irrevocable Trust as of December
31, 2022, of which Mr. Burns is trustee and Mr. Burns' spouse is a beneficiary.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Based upon 47,754,475 shares of Glaukos Corporation common stock outstanding at December 31, 2022.

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp; **CUSIP No. 377322102**<br>| &nbsp;&nbsp;**SCHEDULE 13G** | &nbsp;&nbsp;**Page 3 of 5 Pages** |

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| | |
|:---|:---|
| **Item 1(a)** | <u>Name of Issuer</u>:<br>Glaukos Corporation ("Issuer")<br>|

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| | |
|:---|:---|
| **Item 1(b)** | <u>Address of Issuer's Principal Executive Offices</u>: |

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1 Glaukos Way, Aliso Viejo, CA 92656

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| | |
|:---|:---|
| **Item 2(a)** | <u>Name of Person Filing</u>: |

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Thomas W. Burns

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| | |
|:---|:---|
| **Item 2(b)** | <u>Address of Principal Business Office or, If None, Residence</u>  |

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Same as Item 1(b)

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| | |
|:---|:---|
| **Item 2(c)** | <u>Citizenship</u> |

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See Row 4 of cover page

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| | |
|:---|:---|
| **Item 2(d)** | <u>Title of Class of Securities</u>:<br>Common stock, $0.001 par value per share<br>|

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| | |
|:---|:---|
| **Item 2(e)** | <u>CUSIP Number</u>:<br>377322102 |

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**Item 3.** <u>Statement Filed Pursuant to Rule 13d-1(b) or 13d-2(b) or (c):</u><br>Not applicable.<br>

**Item 4.** <u>Ownership</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount Beneficially Owned: See Row 9 of cover page.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of Class. See Row 11 of cover page.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Number of shares as to which the person has:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i. Sole power to vote or to direct the vote: See Row 5 of cover page.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii. Shared power to vote or to direct the vote: See Row 6 of cover page.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii. Sole power to dispose of or to direct the disposition of: See Row 7 of cover page.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv. Shared power to dispose or to direct the disposition of: See Row 8 of cover page.

**Item 5.** <u>Ownership of Five Percent or Less of a Class</u><br>Not applicable.<br>

**Item 6.** <u>Ownership of More than Five Percent on Behalf of Another Person</u><br>Not applicable.<br>

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp; **CUSIP No. 377322102**<br>| &nbsp;&nbsp;**SCHEDULE 13G** | &nbsp;&nbsp;**Page 4 of 5 Pages** |

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**Item 7.** <u>Identification and Classification of Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person</u>

Not applicable.

**Item 8.** <u>Identification and Classification of Members of the Group</u>

Not applicable.

**Item 9.** <u>Notice of Dissolution of Group</u>

Not applicable.

**Item 10.** <u>Certifications</u>

Not applicable.

**SIGNATURE**

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 14, 2023

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| |
|:---|
| Thomas W. Burns |
| /s/ Thomas W. Burns |

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