Glaukos Corporation GKOS

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233.04 USD -5.57 (-2.33%)

At closeNov 3, 2026, 6:30 PM EST

233.04 0.00 0.00%

After hours · Nov 3, 6:30 PM ET

230.00 Day range 240.76

80.91 52-week range 248.75

Held by insiders 3.56%

Held by institutions 104.95%

Float held by institutions 108.83%

Institutions 528

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	16.12%	9,540,056	2.22B	Jun 29, 2026
Jupiter Topco LLC	8.21%	4,862,894	1.13B	Jun 29, 2026
Vanguard Portfolio Management LLC	5.61%	3,321,839	773.99M	Jun 29, 2026
Primecap Management Company	5.14%	3,040,705	708.48M	Jun 29, 2026
Vanguard Capital Management LLC	4.31%	2,551,132	594.41M	Jun 29, 2026
State Street Corporation	3.91%	2,315,568	539.53M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
iShares Trust-iShares Core S&P Small-Cap ETF	5.94%	3,513,860	818.73M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	3.00%	1,773,769	413.29M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.53%	1,496,000	348.57M	Sep 29, 2026
VANGUARD HORIZON FUNDS-Vanguard Capital Opportunity Fund	2.50%	1,478,020	344.38M	Jun 29, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	2.16%	1,280,092	298.26M	Jun 29, 2026
JANUS INVESTMENT FUND-Janus Henderson Triton Fund	1.79%	1,058,024	246.52M	Jun 29, 2026

GKOS insiders
Insider	Relation	Latest transaction	Date	Shares held
BURNS THOMAS WILLIAM	Chief Executive Officer	Stock Gift	Mar 31, 2026	1,772,730
FOLEY MARK J	Director	Stock Award(Grant)	May 27, 2026	60,267
GILLIAM JOSEPH E.	President	Sale	Aug 10, 2026	72,588
HOFFMEISTER DAVID F	Director	Stock Award(Grant)	May 27, 2026	87,725
KLIMAN GILBERT H.	Director	Sale	Aug 18, 2026	37,406
NAVRATIL TOMAS	Officer	Sale	Oct 4, 2026	69,291

Held by funds