Glaukos Corporation GKOS
221.73 USD -24.97 (-10.12%)
Nov 5, 2026, 1:20 PM EST
218.99 Day range 250.40
81.79 52-week range 246.70
- YTD
- +96.38%
- 1 year
- +162.87%
Ownership
Held by insiders 3.56%
Held by institutions 105.01%
Float held by institutions 108.88%
Institutions 530
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 16.12% | 9,540,056 | 2.35B | Jun 29, 2026 |
| Jupiter Topco LLC | 8.21% | 4,862,894 | 1.20B | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 5.61% | 3,321,839 | 818.73M | Jun 29, 2026 |
| Primecap Management Company | 5.14% | 3,040,705 | 749.44M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.31% | 2,551,132 | 628.78M | Jun 29, 2026 |
| State Street Corporation | 3.91% | 2,315,568 | 570.72M | 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 | 866.06M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.00% | 1,773,769 | 437.18M | Jun 29, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 2.53% | 1,496,000 | 368.72M | Sep 29, 2026 |
| VANGUARD HORIZON FUNDS-Vanguard Capital Opportunity Fund | 2.50% | 1,478,020 | 364.29M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.16% | 1,280,092 | 315.50M | Jun 29, 2026 |
| JANUS INVESTMENT FUND-Janus Henderson Triton Fund | 1.79% | 1,058,024 | 260.77M | Jun 29, 2026 |
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 29, 2026 | 37,328 |