GLAUKOS Corp (GKOS) — Institutional Holders, Q2 2026

368 institutional investment managers reported a GKOS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $8.4B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← GKOS stock profile

GKOS in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

145

Trimmed

104

Sold out

Biggest buyers

FULLER & THALER ASSET MANAGEMENTNew · +529,922 sh+$74.1M
BALYASNY ASSET MANAGEMENT L.P.New · +491,636 sh+$68.7M
BlackRockAdded · +450,027 sh+$62.9M
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENTNew · +446,550 sh+$62.4M
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.New · +416,231 sh+$58.2M

Biggest sellers

GOLDMAN SACHS GROUPTrimmed · -477,937 sh-$66.8M
WILLIAM BLAIR INVESTMENT MANAGEMENTTrimmed · -412,144 sh-$57.6M
Capital International InvestorsSold out · -373,343 sh-$52.2M
PRIMECAP MANAGEMENTTrimmed · -329,923 sh-$46.1M
Artisan Partners Limited PartnershipTrimmed · -298,196 sh-$41.7M

GKOS 13F holders ranked 1–100 of 368

Institutional investors reporting a position in GLAUKOS Corp on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 9,540,056 sh	9,540,056	$1.3B	0.02%	+5.0%
2	Jupiter Topco#2 · 4,862,894 sh	4,862,894	$679.6M	0.28%	—
3	VANGUARD PORTFOLIO MANAGEMENT#3 · 3,321,839 sh	3,321,839	$464.3M	0.02%	+3.5%
4	PRIMECAP MANAGEMENT#4 · 3,040,705 sh	3,040,705	$425.0M	0.25%	-9.8%
5	VANGUARD CAPITAL MANAGEMENT#5 · 2,551,132 sh	2,551,132	$356.5M	<0.01%	+1.7%
6	STATE STREET#6 · 2,315,568 sh	2,315,568	$323.7M	<0.01%	+6.1%
7	MILLENNIUM MANAGEMENT#7 · 1,581,016 sh	1,581,016	$221.0M	0.08%	+34.7%
8	Holocene Advisors#8 · 1,514,931 sh	1,514,931	$211.7M	0.48%	+9.5%
9	GEODE CAPITAL MANAGEMENT#9 · 1,463,448 sh	1,463,448	$204.6M	0.01%	+7.9%
10	CITADEL ADVISORS#10 · 1,390,017 sh	1,390,017	$194.3M	0.02%	-3.9%
11	AMERIPRISE FINANCIAL#11 · 1,315,057 sh	1,315,057	$183.8M	0.04%	-18.4%
12	Capital World Investors#12 · 1,015,943 sh	1,015,943	$142.0M	0.02%	+2.7%
13	ALLIANCEBERNSTEIN L.P.#13 · 1,254,703 sh	1,254,703	$135.1M	0.04%	-10.2%
14	GOLDMAN SACHS GROUP#14 · 897,021 sh	897,021	$125.4M	0.01%	-34.8%
15	CHARLES SCHWAB INVESTMENT MANAGEMENT#15 · 752,642 sh	752,642	$105.2M	0.01%	+5.4%
16	Invesco Ltd.#16 · 706,877 sh	706,877	$98.8M	<0.01%	-22.7%
17	PRICE T ROWE ASSOCIATES#17 · 679,632 sh	679,632	$95.0M	<0.01%	+102.0%
18	WILLIAM BLAIR INVESTMENT MANAGEMENT#18 · 661,675 sh	661,675	$92.5M	0.28%	-38.4%
19	DRIEHAUS CAPITAL MANAGEMENT#19 · 650,571 sh	650,571	$90.9M	0.53%	+33.3%
20	NOMURA ASSET MANAGEMENT INTERNATIONAL#20 · 647,428 sh	647,428	$90.5M	0.14%	+5.8%
21	NORTHERN#21 · 612,496 sh	612,496	$85.6M	0.01%	+6.3%
22	BRAIDWELL#22 · 591,927 sh	591,927	$82.7M	3.06%	-22.5%
23	MORGAN STANLEY#23 · 589,793 sh	589,793	$82.4M	<0.01%	-13.1%
24	BANK OF AMERICA#24 · 587,327 sh	587,327	$82.1M	<0.01%	-10.7%
25	UBS Group AG#25 · 578,271 sh	578,271	$80.8M	0.01%	+49.7%
26	FULLER & THALER ASSET MANAGEMENT#26 · 529,922 sh	529,922	$74.1M	0.20%	New
27	NORGES BANK#27 · 498,502 sh	498,502	$69.7M	<0.01%	—
28	BALYASNY ASSET MANAGEMENT L.P.#28 · 491,636 sh	491,636	$68.7M	0.09%	New
29	JENNISON ASSOCIATES#29 · 491,498 sh	491,498	$68.7M	0.04%	+0.9%
30	WESTFIELD CAPITAL MANAGEMENT#30 · 483,411 sh	483,411	$67.6M	0.22%	+0.2%
31	LOOMIS SAYLES & L P#31 · 469,388 sh	469,388	$65.6M	0.08%	+11.4%
32	SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT#32 · 446,550 sh	446,550	$62.4M	1.10%	New
33	Clearbridge Investments#33 · 431,066 sh	431,066	$60.2M	0.05%	+50.7%
34	WELLINGTON MANAGEMENT GROUP LLP#34 · 428,215 sh	428,215	$59.8M	0.01%	+187.1%
35	LORD, ABBETT#35 · 420,466 sh	420,466	$58.8M	0.17%	+249.8%
36	VANGUARD FIDUCIARY#36 · 417,418 sh	417,418	$58.3M	0.01%	+5.2%
37	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.#37 · 416,231 sh	416,231	$58.2M	0.51%	New
38	Allspring Global Investments#38 · 417,999 sh	417,999	$57.5M	0.09%	+6.1%
39	FMR#39 · 377,485 sh	377,485	$52.8M	<0.01%	+24.5%
40	PRINCIPAL FINANCIAL GROUP#40 · 358,758 sh	358,758	$50.1M	0.02%	+27.8%
41	Bank of New York Mellon#41 · 357,148 sh	357,148	$49.9M	<0.01%	+4.1%
42	Nuveen#42 · 322,624 sh	322,624	$45.1M	0.01%	-19.0%
43	MARSHALL WACE, LLP#43 · 314,804 sh	314,804	$44.0M	0.03%	+823.2%
44	Artisan Partners Limited Partnership#44 · 309,266 sh	309,266	$43.2M	0.07%	-49.1%
45	Neuberger Berman Group#45 · 300,752 sh	300,752	$42.0M	0.03%	+103.4%
46	RIVERBRIDGE PARTNERS#46 · 282,089 sh	282,089	$39.4M	1.10%	-34.9%
47	Anomaly Capital Management#47 · 275,995 sh	275,995	$38.6M	1.47%	New
48	Champlain Investment Partners#48 · 275,171 sh	275,171	$38.5M	0.99%	-13.7%
49	TORONTO DOMINION BANK#49 · 268,152 sh	268,152	$37.5M	0.04%	+642.3%
50	Longaeva Partners L.P.#50 · 236,192 sh	236,192	$33.0M	0.72%	New
51	C WorldWide Group Holding A/S#51 · 207,212 sh	207,212	$29.0M	0.70%	0.0%
52	PUBLIC SECTOR PENSION INVESTMENT BOARD#52 · 201,743 sh	201,743	$28.2M	0.07%	-1.8%
53	BNP Paribas Asset Management Holding S.A.#53 · 195,738 sh	195,738	$27.4M	0.03%	+107.0%
54	JPMORGAN CHASE#54 · 172,186 sh	172,186	$24.9M	<0.01%	-46.8%
55	SEGALL BRYANT & HAMILL#55 · 168,445 sh	168,445	$23.5M	0.28%	New
56	BROWN CAPITAL MANAGEMENT#56 · 167,920 sh	167,920	$23.5M	4.69%	-27.0%
57	Legal & General Group Plc#57 · 165,836 sh	165,836	$23.2M	<0.01%	+3.3%
58	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#58 · 154,929 sh	154,929	$21.7M	<0.01%	New
59	GILDER GAGNON HOWE#59 · 152,448 sh	152,448	$21.3M	0.22%	-0.3%
60	EVENTIDE ASSET MANAGEMENT#60 · 150,036 sh	150,036	$21.0M	0.28%	0.0%
61	Integral Health Asset Management#61 · 150,000 sh	150,000	$21.0M	0.83%	-14.3%
62	RENAISSANCE TECHNOLOGIES#62 · 147,192 sh	147,192	$20.6M	0.03%	+23.8%
63	TimesSquare Capital Management#63 · 145,202 sh	145,202	$20.3M	0.30%	New
64	KEYBANK NATIONAL ASSOCIATION#64 · 145,077 sh	145,077	$20.3M	0.07%	-0.1%
65	RHUMBLINE ADVISERS#65 · 143,454 sh	143,454	$20.0M	0.02%	-7.0%
66	PRUDENTIAL FINANCIAL#66 · 139,527 sh	139,527	$19.5M	0.02%	+138.3%
67	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#67 · 138,990 sh	138,990	$19.4M	<0.01%	-3.3%
68	Point72 Asset Management, L.P.#68 · 138,300 sh	138,300	$19.3M	0.02%	+36.5%
69	Bellevue Group AG#69 · 128,667 sh	128,667	$18.0M	0.38%	-11.7%
70	FRED ALGER MANAGEMENT#70 · 125,911 sh	125,911	$17.6M	0.06%	+10.5%
71	ROYAL BANK OF CANADA#71 · 125,692 sh	125,692	$17.6M	<0.01%	-38.4%
72	SILVERCREST ASSET MANAGEMENT GROUP#72 · 121,880 sh	121,880	$17.0M	0.11%	-5.0%
73	SEI INVESTMENTS#73 · 121,325 sh	121,325	$17.0M	0.01%	-25.0%
74	Rhenman & Partners Asset Management AB#74 · 119,000 sh	119,000	$16.6M	1.57%	+41.7%
75	Swiss National Bank#75 · 110,800 sh	110,800	$15.5M	<0.01%	-2.5%
76	Assenagon Asset Management S.A.#76 · 108,736 sh	108,736	$15.2M	—	+932.5%
77	Susquehanna Portfolio Strategies#77 · 102,507 sh	102,507	$14.3M	0.23%	+1798.3%
78	WCM INVESTMENT MANAGEMENT#78 · 93,267 sh	93,267	$13.3M	0.02%	-0.2%
79	Universal- Beteiligungs- und Servicegesellschaft mbH#79 · 93,493 sh	93,493	$13.1M	0.02%	+6.5%
80	RAYMOND JAMES FINANCIAL#80 · 93,114 sh	93,114	$13.0M	<0.01%	-5.2%
81	NATIXIS ADVISORS#81 · 91,918 sh	91,918	$12.8M	0.01%	+325.9%
82	CANADA PENSION PLAN INVESTMENT BOARD#82 · 87,500 sh	87,500	$12.2M	<0.01%	+99.3%
83	DIMENSIONAL FUND ADVISORS#83 · 87,301 sh	87,301	$12.2M	<0.01%	-56.1%
84	Cinctive Capital Management#84 · 85,070 sh	85,070	$11.9M	0.44%	New
85	CITIGROUP#85 · 78,941 sh	78,941	$11.0M	<0.01%	+28.4%
86	Granite Investment Partners#86 · 78,154 sh	78,154	$10.9M	0.56%	-30.1%
87	ASSETMARK#87 · 73,622 sh	73,622	$10.3M	—	-3.5%
88	SIT INVESTMENT ASSOCIATES#88 · 72,305 sh	72,305	$10.1M	0.19%	+5.5%
89	BESSEMER GROUP#89 · 72,135 sh	72,135	$10.1M	0.01%	+1918.9%
90	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#90 · 70,669 sh	70,669	$9.9M	<0.01%	+2.9%
91	Defilade Capital Management, L.P.#91 · 66,519 sh	66,519	$9.3M	1.24%	New
92	AustralianSuper Pty Ltd#92 · 65,319 sh	65,319	$9.1M	0.04%	-50.3%
93	WELLS FARGO & COMPANY#93 · 65,221 sh	65,221	$9.1M	<0.01%	+120.7%
94	TWO SIGMA INVESTMENTS#94 · 63,430 sh	63,430	$8.9M	<0.01%	0.0%
95	VICTORY CAPITAL MANAGEMENT#95 · 62,202 sh	62,202	$8.7M	<0.01%	-18.1%
96	DEUTSCHE BANK AG\#96 · 61,957 sh	61,957	$8.7M	<0.01%	+18.9%
97	NEW YORK STATE COMMON RETIREMENT FUND#97 · 60,319 sh	60,319	$8.4M	0.01%	-20.9%
98	D. E. Shaw#98 · 57,184 sh	57,184	$8.0M	<0.01%	-77.2%
99	Corient Private Wealth#99 · 57,046 sh	57,046	$8.0M	0.01%	+0.2%
100	BRAUN STACEY ASSOCIATES#100 · 55,010 sh	55,010	$7.7M	—	New

Funds that sold out of GKOS in Q2 2026 (37)

Held GKOS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held GKOS in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Capital International Investors373,343 sh	373,343	$40.2M
PFM Health Sciences215,685 sh	215,685	$23.2M
ExodusPoint Capital Management179,728 sh	179,728	$19.3M
Qube Research & Technologies Ltd108,863 sh	108,863	$11.7M
ADAGE CAPITAL PARTNERS GP, L.L.C.81,878 sh	81,878	$8.8M
Trexquant Investment62,381 sh	62,381	$6.7M
Engineers Gate Manager46,923 sh	46,923	$5.1M
Pier Capital29,261 sh	29,261	$3.2M
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.28,631 sh	28,631	$3.1M
Havemeyer Place17,077 sh	17,077	$1.8M
Lido Advisors14,818 sh	14,818	$1.6M
Y-Intercept (Hong Kong) Ltd14,523 sh	14,523	$1.6M
CONGRESS ASSET MANAGEMENT11,644 sh	11,644	$1.3M
THORNBURG INVESTMENT MANAGEMENT10,886 sh	10,886	$1.2M
Lisanti Capital Growth6,995 sh	6,995	$753.1K
FOX RUN MANAGEMENT, L.L.C.5,971 sh	5,971	$627.0K
JACOBS LEVY EQUITY MANAGEMENT4,663 sh	4,663	$502.0K
INCEPTIONR4,348 sh	4,348	$468.1K
Qsemble Capital Management3,789 sh	3,789	$407.9K
WINTON GROUP Ltd3,700 sh	3,700	$398.3K
Fieldview Capital Management2,829 sh	2,829	$304.6K
Capricorn Fund Managers Ltd2,800 sh	2,800	$301.4K
FARALLON CAPITAL MANAGEMENT2,600 sh	2,600	$279.9K
Abacus Wealth Partners2,554 sh	2,554	$275.0K
CMH Wealth Management2,438 sh	2,438	$262.5K
BOOTHBAY FUND MANAGEMENT2,259 sh	2,259	$243.2K
RWC Asset Management LLP2,197 sh	2,197	$236.5K
GTS SECURITIES1,871 sh	1,871	$201.4K
SIMPLEX TRADING1,613 sh	1,613	$173.7K
TWIN PEAKS WEALTH ADVISORS160 sh	160	$17.2K
Sound Income Strategies101 sh	101	$11.4K
Meramec Financial Planners68 sh	68	$8.5K
MAI Capital Management23 sh	23	$2.5K
Rachor Investment Advisory Services20 sh	20	$2.2K
Root Financial Partners14 sh	14	$1.5K
Advisory Services Network3 sh	3	$323.00
CENTRAL3 sh	3	$323.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.