What does CUSIP 377322102 represent in this 13F holders report?

CUSIP 377322102 is the security identifier for GKOS - GLAUKOS Corp - Common Stock used to aggregate holder disclosures.

How many institutions held GKOS - GLAUKOS Corp - Common Stock in Q1 2017?

153 institutional investors reported GKOS - GLAUKOS Corp - Common Stock for Q1 2017. Use the holders table for investor-level position and value details.

GLAUKOS Corp - Common Stock (GKOS)

CUSIP: 377322102

Q1 2017 13F Holders as of 31 Mar 2017

Type / Class: Equity / Common Stock
Shares outstanding: 56,958,245
Total 13F shares: 30,393,559
Share change: +1,943,703
Total reported value: $1,558,980,687
Put/Call ratio: 135%
Price per share: $51.30
Number of holders: 153
Value change: +$128,778,979
Number of buys: 91
Number of sells: 69

Quarterly Holders Quick Answers

What is CUSIP 377322102?
CUSIP 377322102 identifies GKOS - GLAUKOS Corp - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2017
Previous quarter: Q4 2016

Recent filing periods for CUSIP 377322102:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of GKOS - GLAUKOS Corp - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
ORBIMED ADVISORS LLC	13F	Company	3.8%	2,180,000	$74,774,000	—	31 Dec 2016	13F
Meritech Capital Associates III L.L.C.	13F	Company	3.7%	2,098,624	$71,983,000	—	31 Dec 2016	13F
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F	Company	3.4%	1,959,774	$67,220,000	—	31 Dec 2016	13F
Capital World Investors	13F	Company	3.4%	1,945,000	$66,714,000	—	31 Dec 2016	13F
GILDER GAGNON HOWE & CO LLC	13F	Company	2.7%	1,534,129	$52,621,000	—	31 Dec 2016	13F
VANGUARD GROUP INC	13F	Company	2.4%	1,371,066	$47,027,000	—	31 Dec 2016	13F
INTERWEST VENTURE MANAGEMENT CO	13F	Company	1.8%	1,018,362	$34,930,000	—	31 Dec 2016	13F
FEDERATED HERMES, INC.	13F	Company	1.7%	962,610	$33,017,000	—	31 Dec 2016	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	1.6%	936,502	$32,127,000	—	31 Dec 2016	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	1.6%	921,665	$31,613,000	—	31 Dec 2016	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	1.6%	899,406	$30,850,000	—	31 Dec 2016	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	1.5%	849,000	$29,121,000	—	31 Dec 2016	13F
LORD, ABBETT & CO. LLC	13F	Company	1.5%	839,561	$28,797,000	—	31 Dec 2016	13F
NEXT CENTURY GROWTH INVESTORS LLC	13F	Company	1.2%	704,664	$24,169,000	—	31 Dec 2016	13F
WELLS FARGO & COMPANY/MN	13F	Company	1.2%	667,832	$22,907,000	—	31 Dec 2016	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.2%	666,951	$22,876,000	—	31 Dec 2016	13F
BAMCO INC /NY/	13F	Company	0.93%	530,365	$18,192,000	—	31 Dec 2016	13F
BlackRock Fund Advisors	13F	Company	0.87%	495,245	$16,987,000	—	31 Dec 2016	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	0.74%	424,323	$14,554,000	—	31 Dec 2016	13F
DEERFIELD MANAGEMENT COMPANY, L.P.	13F	Company	0.69%	393,228	$13,488,000	—	31 Dec 2016	13F
Artisan Partners Limited Partnership	13F	Company	0.65%	369,893	$12,687,000	—	31 Dec 2016	13F
Point72 Asset Management, L.P.	13F	Company	0.64%	364,300	$12,495,000	—	31 Dec 2016	13F
C WorldWide Group Holding A/S	13F	Company	0.64%	362,501	$12,434,000	—	31 Dec 2016	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.63%	358,004	$12,280,000	—	31 Dec 2016	13F
FULLER & THALER ASSET MANAGEMENT, INC.	13F	Company	0.5%	284,730	$9,766,000	—	31 Dec 2016	13F
STATE STREET CORP	13F	Company	0.49%	281,407	$9,653,000	—	31 Dec 2016	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.4%	227,765	$7,812,000	—	31 Dec 2016	13F
Cortina Asset Management, LLC	13F	Company	0.39%	223,558	$7,668,000	—	31 Dec 2016	13F
NORTHERN TRUST CORP	13F	Company	0.38%	217,031	$7,444,000	—	31 Dec 2016	13F
CITADEL ADVISORS LLC	13F	Company	0.38%	214,829	$7,368,000	—	31 Dec 2016	13F
Ghost Tree Capital, LLC	13F	Company	0.35%	200,000	$6,860,000	—	31 Dec 2016	13F
OBERWEIS ASSET MANAGEMENT INC/	13F	Company	0.33%	186,400	$6,394,000	—	31 Dec 2016	13F
MAGEE THOMSON INVESTMENT PARTNERS LLC	13F	Company	0.32%	179,697	$6,163,000	—	31 Dec 2016	13F
MORGAN STANLEY	13F	Company	0.31%	175,043	$6,003,000	—	31 Dec 2016	13F
Pier Capital, LLC	13F	Company	0.28%	160,639	$5,510,000	—	31 Dec 2016	13F
Russell Investments Group, Ltd.	13F	Company	0.27%	155,244	$5,371,000	—	31 Dec 2016	13F
EverPoint Asset Management, LLC	13F	Company	0.26%	150,000	$5,145,000	—	31 Dec 2016	13F
ADVISORY RESEARCH INC	13F	Company	0.26%	147,713	$5,067,000	—	31 Dec 2016	13F
Broadfin Capital, LLC	13F	Company	0.25%	141,300	$4,847,000	—	31 Dec 2016	13F
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	13F	Company	0.18%	103,100	$4,753,000	—	31 Dec 2016	13F
Bank of New York Mellon Corp	13F	Company	0.24%	138,136	$4,738,000	—	31 Dec 2016	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.23%	131,624	$4,515,000	—	31 Dec 2016	13F
Atika Capital Management LLC	13F	Company	0.23%	130,000	$4,459,000	—	31 Dec 2016	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.22%	127,521	$4,374,000	—	31 Dec 2016	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.22%	125,246	$4,296,000	—	31 Dec 2016	13F
Handelsbanken Fonder AB	13F	Company	0.22%	125,000	$4,288,000	—	31 Dec 2016	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.21%	121,981	$4,183,000	—	31 Dec 2016	13F
JPMORGAN CHASE & CO	13F	Company	0.21%	120,354	$4,128,000	—	31 Dec 2016	13F
Iguana Healthcare Management, LLC	13F	Company	0.21%	120,000	$4,116,000	—	31 Dec 2016	13F
Rhenman & Partners Asset Management AB	13F	Company	0.2%	115,800	$3,972,000	—	31 Dec 2016	13F

Institutional Holders of GLAUKOS Corp - Common Stock (GKOS) as of Q1 2017

As of 31 Mar 2017, GLAUKOS Corp - Common Stock (GKOS) was held by 153 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 30,393,559 shares. The largest 10 holders included Capital World Investors, WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC, JANUS CAPITAL MANAGEMENT LLC, ORBIMED ADVISORS LLC, VANGUARD GROUP INC, GILDER GAGNON HOWE & CO LLC, ALLIANCEBERNSTEIN L.P., Meritech Capital Associates III L.L.C., RENAISSANCE TECHNOLOGIES LLC, and WELLS FARGO & COMPANY/MN. This page lists 153 institutional shareholders reporting positions in this security for the Q1 2017 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2017 vs Q4 2016 Across Filers

Q4 2016 holders

134

Q1 2017 holders

153

Holder diff

Investor	Q4 2016 Shares	Q1 2017 Shares	Share Diff	Share Chg %	Q4 2016 Value $	Q1 2017 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.