GLAUKOS CORP (GKOS) Stock Ownership and Short Interest
USA - New York Stock Exchange - NYSE:GKOS - US3773221029 - Common Stock
108.88 USD
-0.35 (-0.32%)
108.88 USD
0 (0%)
| Shares Outstanding | 57.43M |
| Float | 55.55M |
| Float Short Interest Percentage | 4.84% |
| Owners (insider) | 3.29% |
| Owners (institutional) | 100.67% |
| Owners (insider) change | 0.21% |
| Owners (institutional) change | -7.5% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Dec 9, 2025 | Kliman Gilbert H | Option Excercise | 5000 | 24.69 | $ 123,450.00 |
| Dec 9, 2025 | Kliman Gilbert H | Open Market Sale | 5000 | 107.27 | $ 536,350.00 |
| Nov 25, 2025 | Thurman Alex R. | Open Market Sale | 315 | 105.00 | $ 33,075.00 |
| Nov 18, 2025 | Gilliam Joseph E | Open Market Sale | 19340 | 90.00 | $ 1,740,600.00 |
| Sep 23, 2025 | Burns Thomas William | Option Excercise | 4059 | 84.69 | $ 343,756.71 |
| Sep 23, 2025 | Gilliam Joseph E | Option Excercise | 1056 | 84.69 | $ 89,432.64 |
| Sep 23, 2025 | Navratil Tomas | Option Excercise | 483 | 84.69 | $ 40,905.27 |
| Sep 22, 2025 | Navratil Tomas | Open Market Sale | 517 | 84.22 | $ 43,541.05 |
| Sep 19, 2025 | Burns Thomas William | Option Excercise | 1098 | 83.47 | $ 91,650.06 |
| Sep 19, 2025 | Navratil Tomas | Option Excercise | 510 | 83.47 | $ 42,569.70 |
| Sep 18, 2025 | Navratil Tomas | Grant | 1948 | 0.00 | $ 0.00 |
| Sep 18, 2025 | Gilliam Joseph E | Grant | 3884 | 0.00 | $ 0.00 |
| Sep 18, 2025 | Burns Thomas William | Grant | 15417 | 0.00 | $ 0.00 |
| Sep 11, 2025 | Navratil Tomas | Open Market Sale | 5142 | 88.22 | $ 453,620.40 |
| Jun 11, 2025 | Hoffmeister David F | Option Excercise | 25000 | 32.00 | $ 800,000.00 |
| May 29, 2025 | Foley Mark J | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | Hoffmeister David F | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | Stapley Marc | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | WEISNER AIMEE S | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | Torres Denice | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | Kliman Gilbert H | Grant | 2108 | 0.00 | $ 0.00 |
| May 29, 2025 | WEN LEANA | Grant | 2108 | 0.00 | $ 0.00 |
| May 28, 2025 | Gilliam Joseph E | Option Excercise | 1057 | 96.97 | $ 102,497.29 |
| May 27, 2025 | Navratil Tomas | Option Excercise | 483 | 96.97 | $ 46,836.51 |
| May 27, 2025 | Burns Thomas William | Option Excercise | 4059 | 96.97 | $ 393,601.23 |
| May 7, 2025 | Burns Thomas William | Option Excercise | 1098 | 88.24 | $ 96,887.52 |
| May 7, 2025 | Navratil Tomas | Option Excercise | 510 | 88.24 | $ 45,002.40 |
| Apr 21, 2025 | Thurman Alex R. | Option Excercise | 2484 | 97.09 | $ 241,171.56 |
| Apr 21, 2025 | Burns Thomas William | Option Excercise | 7957 | 97.09 | $ 772,545.13 |
| Apr 1, 2025 | Gilliam Joseph E | Option Excercise | 1922 | 97.09 | $ 186,606.98 |
| Apr 1, 2025 | Thurman Alex R. | Option Excercise | 311 | 97.09 | $ 30,194.99 |
| Mar 31, 2025 | Navratil Tomas | Option Excercise | 994 | 97.77 | $ 97,185.76 |
| Mar 31, 2025 | Burns Thomas William | Option Excercise | 5157 | 97.37 | $ 502,153.47 |
| Mar 25, 2025 | Navratil Tomas | Option Excercise | 6942 | 104.71 | $ 726,880.32 |
| Mar 25, 2025 | Thurman Alex R. | Option Excercise | 4844 | 103.99 | $ 503,734.92 |
| Mar 25, 2025 | Thurman Alex R. | Open Market Sale | 1520 | 106.84 | $ 162,398.58 |
| Mar 25, 2025 | Burns Thomas William | Option Excercise | 9439 | 98.90 | $ 933,508.11 |
| Mar 25, 2025 | Gilliam Joseph E | Option Excercise | 16320 | 105.66 | $ 1,724,365.29 |
| Mar 17, 2025 | Burns Thomas William | Option Excercise | 2013 | 102.19 | $ 205,708.47 |
| Mar 17, 2025 | Thurman Alex R. | Option Excercise | 489 | 102.19 | $ 49,970.91 |
| Mar 17, 2025 | Navratil Tomas | Option Excercise | 958 | 102.19 | $ 97,898.02 |
| Mar 17, 2025 | Gilliam Joseph E | Option Excercise | 1028 | 102.19 | $ 105,051.32 |
| Mar 13, 2025 | Gilliam Joseph E | Grant | 27833 | 0.00 | $ 0.00 |
| Mar 13, 2025 | Burns Thomas William | Grant | 84310 | 0.00 | $ 0.00 |
| Mar 13, 2025 | Thurman Alex R. | Grant | 8313 | 0.00 | $ 0.00 |
| Mar 13, 2025 | Navratil Tomas | Grant | 18061 | 0.00 | $ 0.00 |
| Feb 26, 2025 | Foley Mark J | Option Excercise | 40000 | 29.26 | $ 1,170,350.00 |
| Feb 26, 2025 | Foley Mark J | Open Market Sale | 20687 | 120.72 | $ 2,497,334.64 |
| Feb 14, 2025 | Navratil Tomas | Open Market Sale | 3416 | 147.14 | $ 502,630.24 |
| Jan 6, 2025 | Navratil Tomas | Option Excercise | 1185 | 149.68 | $ 177,370.80 |
| Dec 31, 2024 | Burns Thomas William | Option Excercise | 549 | 151.16 | $ 82,986.84 |
| Dec 31, 2024 | Navratil Tomas | Option Excercise | 255 | 151.16 | $ 38,545.80 |
| Dec 30, 2024 | Burns Thomas William | Grant | 4168 | 0.00 | $ 0.00 |
| Dec 30, 2024 | Navratil Tomas | Grant | 2054 | 0.00 | $ 0.00 |
| Dec 20, 2024 | Kliman Gilbert H | Option Excercise | 10000 | 32.00 | $ 320,000.00 |
| Dec 20, 2024 | Kliman Gilbert H | Open Market Sale | 10000 | 150.28 | $ 1,502,800.00 |
| Dec 20, 2024 | Gilliam Joseph E | Option Excercise | 3328 | 59.74 | $ 198,829.80 |
| Dec 20, 2024 | Gilliam Joseph E | Open Market Sale | 3328 | 149.85 | $ 498,715.64 |