Latest Period
Q2 2026
Security Snapshot
GLAUKOS Corp - Common Stock (GKOS) Institutional Ownership
CUSIP: 377322102
13F Institutional Holders and Ownership History from Q2 2015 to Q2 2026
Institutions Reporting
364
Shares (Excl. Options)
60,688,481
Price
$139.76
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock
- Symbol
- GKOS on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 60,688,481
- Total 13F value
- $8,439,992,433
- Portfolio coverage rank
- 0%
- Share change
- +3,205,740
- Value change
- +$492,086,783
- Number of holders
- 364
- Shares outstanding
- 58,134,728
- SEC-reported price per share
- $152.13
- Insider filing price
- $152.13
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- GKOS - GLAUKOS Corp - Common Stock is tracked under CUSIP 377322102.
- 364 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 336 to 364 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $6,250,683,568 to $8,439,992,433.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 364 institutions filings for Q2 2026.
Security key
377322102
Latest holder period
Q2 2026
13F holders
364
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
GKOS full holder history
GLAUKOS Corp SEC filings
GLAUKOS Corp company facts
GLAUKOS Corp insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 377322102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
GKOS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | $765,685,922 | 8,160,353 | BlackRock, Inc. | 31 Mar 2025 | |||
| JANUS HENDERSON GROUP PLC | 9.2% | +78% | $622,553,178 | +$271,166,371 | 5,348,395 | +77% | JANUS HENDERSON GROUP PLC | 31 Mar 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | 5.9% | $381,288,940 | 3,376,928 | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6% | $350,644,529 | 3,256,962 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | $317,279,080 | 2,947,047 | Vanguard Capital Management | 31 Mar 2026 | |||
| FMR LLC | 4.5% | -59% | $262,367,116 | -$360,259,421 | 2,561,428 | -58% | FMR LLC | 31 Jul 2025 |
| Burns Thomas William | 4.4% | $239,613,202 | 2,553,695 | Thomas W. Burns | 31 Dec 2024 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 0.8% | -82% | $54,967,298 | -$311,358,358 | 486,824 | -85% | Wellington Management Group LLP | 31 Dec 2025 |
As of 30 Jun 2026, 364 institutional investors reported holding 60,688,481 shares of GLAUKOS Corp - Common Stock (GKOS). This represents 104% of the company’s total 58,134,728 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
74%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 9,540,056 | +5% | 0.02% | $1,333,318,226 |
| Jupiter Topco LLC | 8.4% | 4,862,894 | 0% | 0.28% | $679,614,131 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.7% | 3,321,839 | +3.5% | 0.02% | $464,260,219 |
| PRIMECAP MANAGEMENT CO/CA/ | 5.2% | 3,040,705 | -9.8% | 0.25% | $424,968,931 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 2,551,132 | +1.7% | 0.01% | $356,546,208 |
| STATE STREET CORP | 4% | 2,315,568 | +6.1% | 0.01% | $323,673,467 |
| MILLENNIUM MANAGEMENT LLC | 2.7% | 1,581,016 | +35% | 0.15% | $220,962,796 |
| Holocene Advisors, LP | 2.6% | 1,514,931 | +9.5% | 0.48% | $211,726,757 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 1,463,448 | +7.9% | 0.01% | $204,570,637 |
| CITADEL ADVISORS LLC | 2.4% | 1,390,017 | -3.9% | 0.11% | $194,268,776 |
| AMERIPRISE FINANCIAL INC | 2.3% | 1,315,057 | -18% | 0.04% | $183,792,773 |
| ALLIANCEBERNSTEIN L.P. | 2.2% | 1,254,703 | -10% | 0.05% | $135,081,325 |
| Capital World Investors | 1.7% | 1,015,943 | +2.7% | 0.02% | $141,988,194 |
| GOLDMAN SACHS GROUP INC | 1.5% | 897,021 | -35% | 0.01% | $125,367,655 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3% | 752,642 | +5.4% | 0.01% | $105,189,246 |
| Invesco Ltd. | 1.2% | 706,877 | -23% | 0.01% | $98,793,129 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.2% | 679,632 | +102% | 0.01% | $94,987,000 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1% | 661,675 | -38% | 0.28% | $92,475,698 |
| Driehaus Capital Management LLC | 1.1% | 650,571 | +33% | 0.53% | $90,923,803 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.1% | 647,428 | +5.8% | 0.14% | $90,485,000 |
| NORTHERN TRUST CORP | 1.1% | 612,496 | +6.3% | 0.01% | $85,602,441 |
| BRAIDWELL LP | 1% | 591,927 | -22% | 3.1% | $82,727,718 |
| MORGAN STANLEY | 1% | 589,793 | -13% | 0% | $82,429,643 |
| BANK OF AMERICA CORP /DE/ | 1% | 587,327 | -11% | 0.01% | $82,084,821 |
| UBS Group AG | 0.99% | 578,271 | +50% | 0.01% | $80,819,154 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
45
Latest
Q2 2026
Rows shown
1-25 of 45
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 60,688,481 | $8,439,992,433 | +$492,086,783 | $139.76 | 364 |
| 2026 Q1 | 57,985,000 | $6,250,683,568 | +$69,498,809 | $107.66 | 336 |
| 2025 Q4 | 57,074,132 | $6,443,592,197 | +$169,395,380 | $112.91 | 331 |
| 2025 Q3 | 55,921,410 | $4,561,721,472 | -$456,444,413 | $81.55 | 313 |
| 2025 Q2 | 61,056,629 | $6,306,184,856 | +$430,126,517 | $103.29 | 297 |
| 2025 Q1 | 56,920,710 | $5,602,550,629 | -$131,202,348 | $98.42 | 313 |
| 2024 Q4 | 57,136,161 | $8,567,896,672 | +$336,126,676 | $149.94 | 320 |
| 2024 Q3 | 54,888,174 | $7,151,261,658 | +$54,382,295 | $130.28 | 313 |
| 2024 Q2 | 54,042,831 | $6,395,837,794 | +$282,843,807 | $118.35 | 282 |
| 2024 Q1 | 51,842,920 | $4,888,448,545 | +$105,452,984 | $94.29 | 252 |
| 2023 Q4 | 50,930,304 | $4,048,545,236 | +$90,675,813 | $79.49 | 245 |
| 2023 Q3 | 49,799,223 | $3,747,316,168 | +$97,607,908 | $75.25 | 231 |
| 2023 Q2 | 48,437,046 | $3,449,116,516 | +$95,457,907 | $71.21 | 217 |
| 2023 Q1 | 47,342,474 | $2,371,756,462 | +$44,473,822 | $50.10 | 200 |
| 2022 Q4 | 46,564,095 | $2,034,031,934 | +$16,170,892 | $43.68 | 211 |
| 2022 Q3 | 44,438,207 | $2,366,244,684 | +$21,899,626 | $53.24 | 219 |
| 2022 Q2 | 44,147,155 | $2,006,060,592 | +$48,735,644 | $45.42 | 191 |
| 2022 Q1 | 43,205,720 | $2,498,715,661 | -$11,042,581 | $57.82 | 204 |
| 2021 Q4 | 43,543,281 | $1,935,700,781 | -$31,171,187 | $44.44 | 204 |
| 2021 Q3 | 44,184,518 | $2,128,367,593 | -$260,417,707 | $48.17 | 201 |
| 2021 Q2 | 48,339,669 | $4,100,514,324 | +$31,234,246 | $84.83 | 214 |
| 2021 Q1 | 49,205,858 | $4,130,409,129 | +$57,694,335 | $83.93 | 215 |
| 2020 Q4 | 48,537,899 | $3,653,566,909 | -$82,853,803 | $75.26 | 202 |
| 2020 Q3 | 50,418,256 | $2,497,765,020 | +$157,363,543 | $49.52 | 174 |
| 2020 Q2 | 47,326,259 | $1,818,308,189 | +$97,458,392 | $38.42 | 174 |