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GKOS

GLAUKOS Corp
$148.70 +0.36 (+0.24%) At close · Jul 6
Market Cap
$8.73B
Shares
58,733,911

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 339
Total Value: $5,998,918,700
Total Shares: 55,720,314
Showing 1–100 of 346 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Superinvestors Holding GKOS

All superinvestors →
Mario Gabelli $351,402

Holder Concentration

Across 338 13F filers
Top Holder
16.3%
Jun 2023 → Mar 2026 · range 14.1% – 16.3%
of institutional value
Top 5
40.4%
Jun 2023 → Mar 2026 · range 40.1% – 47.0%
of institutional value
Top 10
53.4%
Jun 2023 → Mar 2026 · range 52.9% – 61.6%
of institutional value
HHI
507
Jun 2023 → Mar 2026 · range 490 – 640
Broadly held
Showing 100 of 346
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $978,632,515 16.31% 9,090,029
Mega JANUS HENDERSON GROUP PLC $575,808,203 9.60% 5,348,395
Mega PRIMECAP MANAGEMENT CO/CA/ $362,881,810 6.05% 3,370,628
Mega VANGUARD CAPITAL MANAGEMENT LLC $270,094,285 4.50% 2,508,771
Mega STATE STREET CORP $234,980,546 3.92% 2,182,617
Mega AMERIPRISE FINANCIAL INC $173,415,925 2.89% 1,610,774
Mega CITADEL ADVISORS LLC $155,776,052 2.60% 1,446,926
Mega ALLIANCEBERNSTEIN L.P. $150,460,878 2.51% 1,397,556
Large Holocene Advisors, LP $148,970,756 2.48% 1,383,715
Mega GOLDMAN SACHS GROUP INC $148,027,976 2.47% 1,374,958
Mega GEODE CAPITAL MANAGEMENT, LLC $146,035,729 2.43% 1,356,453
Mega MILLENNIUM MANAGEMENT LLC $126,360,111 2.11% 1,173,696
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $115,607,353 1.93% 1,073,819
Mega Capital World Investors $106,482,199 1.78% 989,060
Mega Invesco Ltd. $98,421,476 1.64% 914,188
Mid BRAIDWELL LP $82,198,948 1.37% 763,505
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $76,911,119 1.28% 714,389
Mega MORGAN STANLEY $73,082,294 1.22% 678,825
Mega BANK OF AMERICA CORP /DE/ Bank $70,779,127 1.18% 657,432
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $65,894,702 1.10% 612,063
Large Artisan Partners Limited Partnership $65,399,358 1.09% 607,462
Mega NORTHERN TRUST CORP Bank $62,034,657 1.03% 576,209
Mega JANE STREET GROUP, LLC $59,449,852 0.99% 552,200
Large Driehaus Capital Management LLC $52,528,605 0.88% 487,912
Mega JENNISON ASSOCIATES LLC $52,432,572 0.87% 487,020
Large WESTFIELD CAPITAL MANAGEMENT CO LP $51,915,697 0.87% 482,219
Mid RIVERBRIDGE PARTNERS LLC $46,641,326 0.78% 433,228
Large LOOMIS SAYLES & CO L P $45,350,697 0.76% 421,240
Mega Nuveen, LLC $42,884,098 0.71% 398,329
Mega VANGUARD FIDUCIARY TRUST CO Bank $42,710,767 0.71% 396,719
Large Allspring Global Investments Holdings, LLC $42,399,844 0.71% 393,831
Mega UBS Group AG $41,599,823 0.69% 386,400
Mega Capital International Investors $40,194,107 0.67% 373,343
Mega Bank of New York Mellon Corp Bank $36,946,000 0.62% 343,173
Mega PRICE T ROWE ASSOCIATES INC /MD/ $36,219,514 0.60% 336,425
Mega JPMORGAN CHASE & CO $34,862,350 0.58% 323,819
Mid Champlain Investment Partners, LLC $34,346,446 0.57% 319,027
Mega FMR LLC $32,649,615 0.54% 303,266
Mega Clearbridge Investments, LLC $30,796,250 0.51% 286,051
Mega PRINCIPAL FINANCIAL GROUP INC $30,224,144 0.50% 280,737
Mega D. E. Shaw & Co., Inc. $27,041,608 0.45% 251,176
Small BROWN CAPITAL MANAGEMENT LLC $24,764,814 0.41% 230,028
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $23,534,476 0.39% 218,600
Small PFM Health Sciences, LP $23,220,647 0.39% 215,685
Mid C WorldWide Group Holding A/S $22,308,443 0.37% 207,212
Large Public Sector Pension Investment Board Pension $22,122,407 0.37% 205,484
Mega ROYAL BANK OF CANADA Bank $21,979,110 0.37% 204,153
Mega DIMENSIONAL FUND ADVISORS LP $21,433,380 0.36% 199,084
Large ExodusPoint Capital Management, LP $19,349,516 0.32% 179,728
Mid Integral Health Asset Management, LLC $18,840,500 0.31% 175,000
Large SEI INVESTMENTS CO $17,406,468 0.29% 161,680
Mega Legal & General Group Plc $17,283,950 0.29% 160,542
Mega RHUMBLINE ADVISERS $16,598,588 0.28% 154,176
Mid GILDER GAGNON HOWE & CO LLC $16,460,891 0.27% 152,897
Mid EVENTIDE ASSET MANAGEMENT, LLC $16,152,875 0.27% 150,036
Mega WELLINGTON MANAGEMENT GROUP LLP $16,057,488 0.27% 149,150
Mega NEUBERGER BERMAN GROUP LLC $15,922,267 0.27% 147,894
Mid Bellevue Group AG $15,686,384 0.26% 145,703
Large KEYBANK NATIONAL ASSOCIATION/OH Bank $15,639,768 0.26% 145,270
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $15,478,704 0.26% 143,774
Large AustralianSuper Pty Ltd $14,161,058 0.24% 131,535
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $13,812,132 0.23% 128,294
Mid SEGALL BRYANT & HAMILL, LLC $13,452,224 0.22% 124,951
Large LORD, ABBETT & CO. LLC $12,942,239 0.22% 120,214
Large RENAISSANCE TECHNOLOGIES LLC $12,799,912 0.21% 118,892
Large FRED ALGER MANAGEMENT, LLC $12,267,102 0.20% 113,943
Mega Swiss National Bank Bank $12,230,176 0.20% 113,600
Mid Granite Investment Partners, LLC $12,044,139 0.20% 111,872
Large Qube Research & Technologies Ltd $11,720,190 0.20% 108,863
Large Squarepoint Ops LLC $11,632,555 0.19% 108,049
Large Point72 Asset Management, L.P. $10,910,264 0.18% 101,340
Mega RAYMOND JAMES FINANCIAL INC $10,575,009 0.18% 98,226
Mid OSTERWEIS CAPITAL MANAGEMENT INC $10,212,950 0.17% 94,863
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $10,177,960 0.17% 94,538
Large WCM INVESTMENT MANAGEMENT, LLC $10,058,350 0.17% 93,427
Large Universal- Beteiligungs- und Servicegesellschaft mbH $9,447,380 0.16% 87,752
Small Rhenman & Partners Asset Management AB $9,043,440 0.15% 84,000
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $8,814,985 0.15% 81,878
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $8,300,586 0.14% 77,100
Large ASSETMARK, INC $8,215,103 0.14% 76,306
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $8,209,828 0.14% 76,257
Mega VICTORY CAPITAL MANAGEMENT INC $8,180,545 0.14% 75,985
Mega California Public Employees Retirement System Pension $7,391,289 0.12% 68,654
Mid SIT INVESTMENT ASSOCIATES INC $7,375,248 0.12% 68,505
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $7,152,284 0.12% 66,434
Mega TWO SIGMA INVESTMENTS, LP $6,828,873 0.11% 63,430
Large Trexquant Investment LP $6,715,938 0.11% 62,381
Mega CITIGROUP INC $6,621,412 0.11% 61,503
Mid Eversept Partners, LP $6,482,639 0.11% 60,214
Mega MILLENNIUM MANAGEMENT LLC $6,459,600 0.11% 60,000
Large PRUDENTIAL FINANCIAL INC $6,304,246 0.11% 58,557
Large Corient Private Wealth LLC $6,130,160 0.10% 56,940
Large Allianz Asset Management GmbH $5,905,473 0.10% 54,853
Mid ALGERT GLOBAL LLC $5,835,279 0.10% 54,201
Large Baird Financial Group, Inc. $5,684,555 0.09% 52,801
Mega VANGUARD ASSET MANAGEMENT, Ltd $5,680,249 0.09% 52,761
Mid EFG International AG $5,626,634 0.09% 52,263
Mega DEUTSCHE BANK AG\ Bank $5,608,653 0.09% 52,096
Mega ENVESTNET ASSET MANAGEMENT INC $5,408,515 0.09% 50,237
Large CANADA LIFE ASSURANCE Co Insurance $5,158,313 0.09% 47,913
Key facts CIK 1192448 CUSIP 377322102 13F (30d) 5 filings 5 filers Visit website Investor relations

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