GLAUKOS CORP (GKOS) Stock Ownership

NYSE:GKOS • US3773221029

120.4 USD
-1.03 (-0.85%)
At close: Feb 27, 2026
120.4 USD
0 (0%)
After Hours: 2/27/2026, 8:07:11 PM
Overview Stock Chart Technical Analysis Fundamental Analysis Analyst Ratings Earnings Estimates Financials Ownership News
GKOS Ownership Chart.GKOS Ownership Chart: showing Insider, Institutional ownership and shares available to the public.GKOS Ownership.InsiderInstitutional



Shares Outstanding57.43M
Float55.54M
Float Short Interest Percentage4.47%
Owners (insider)3.3%
Owners (institutional)100.65%
Owners (insider) change1.48%
Owners (institutional) change0.98%
GKOS Institutional Ownership HistoryGKOS Institutional Ownership HistoryGKOS Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M
GKOS Historical Insider Transactions ChartGKOS Historical Insider Buy and Sell Transactions ChartGKOS Historical Insider Transactions Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 0 100K -100K 200K -200K
Date Name Type Shares Price Amount
Feb 24, 2026 Burns Thomas William Option Excercise 4059 119.17 $ 483,711.03
Feb 24, 2026 Navratil Tomas Option Excercise 396 119.17 $ 47,191.32
Feb 24, 2026 Gilliam Joseph E Option Excercise 1057 119.17 $ 125,962.69
Feb 19, 2026 WEISNER AIMEE S Other Disposition 1960 0.00 $ 0.00
Feb 19, 2026 WEISNER AIMEE S Option Excercise 15000 24.69 $ 370,350.00
Feb 19, 2026 WEISNER AIMEE S Open Market Sale 15000 117.38 $ 1,760,761.43
Feb 9, 2026 Burns Thomas William Option Excercise 166000 30.92 $ 5,132,720.00
Feb 6, 2026 Burns Thomas William Other Disposition 134706 0.00 $ 0.00
Jan 22, 2026 Gilliam Joseph E Option Excercise 10498 55.18 $ 579,279.64
Jan 22, 2026 Gilliam Joseph E Open Market Sale 10498 127.68 $ 1,340,379.78
Jan 22, 2026 Stapley Marc Option Excercise 15000 24.69 $ 370,350.00
Jan 22, 2026 Stapley Marc Open Market Sale 15000 127.71 $ 1,915,576.23
Jan 21, 2026 Gilliam Joseph E Option Excercise 4502 55.18 $ 248,420.36
Jan 21, 2026 Gilliam Joseph E Open Market Sale 4502 124.65 $ 561,174.30
Jan 16, 2026 Burns Thomas William Option Excercise 186945 16.49 $ 3,082,723.05
Jan 16, 2026 Burns Thomas William Open Market Sale 186945 115.00 $ 21,498,675.00
Jan 2, 2026 Stapley Marc Grant 727 0.00 $ 0.00
Jan 2, 2026 WEISNER AIMEE S Grant 623 0.00 $ 0.00
Jan 2, 2026 Torres Denice Grant 623 0.00 $ 0.00
Jan 2, 2026 Kliman Gilbert H Grant 623 0.00 $ 0.00
Jan 2, 2026 Foley Mark J Grant 1168 0.00 $ 0.00
Jan 2, 2026 WEN LEANA Grant 623 0.00 $ 0.00
Jan 2, 2026 Hoffmeister David F Grant 753 0.00 $ 0.00
Dec 30, 2025 Navratil Tomas Option Excercise 510 114.24 $ 58,262.40
Dec 30, 2025 Burns Thomas William Option Excercise 1098 114.24 $ 125,435.52
Dec 11, 2025 Navratil Tomas Grant 2054 0.00 $ 0.00
Dec 11, 2025 Burns Thomas William Grant 4168 0.00 $ 0.00
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 Navratil Tomas Option Excercise 510 83.47 $ 42,569.70
Sep 19, 2025 Burns Thomas William Option Excercise 1098 83.47 $ 91,650.06
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 Kliman Gilbert H Grant 2108 0.00 $ 0.00
May 29, 2025 WEN LEANA Grant 2108 0.00 $ 0.00
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 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 Gilliam Joseph E Option Excercise 1028 102.19 $ 105,051.32
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 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