Glaukos Corp (GKOS)

Over the last 90 days, Glaukos Corp. has seen significant insider selling, with a net value of -$4.43 million. Executives contributed -$2.81 million to this net selling. Notable transactions include large sales by Gilbert H. Kliman, Joseph E. Gilliam, and Alex R. Thurman, totaling over $5.5 million.
Stock chart
Ticker: GKOS Exchange: NYS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Kliman Gilbert H
2 sales — total 1,407,601 USD
Sale 14 May 2026
Value US$3,832,931.62 | Price 196.03 | Shares 23,441
Proposed sale 14 May 2026
Value US$2,905,097.36 | Price 341.69 | Shares 62,540
Sale 11 May 2026
Value US$1,150,151.11 | Price 320.10 | Shares 92,352
Proposed sale 11 May 2026
Value US$1,917,067.20 | Price 106.95 | Shares 44,288
Sale 1 May 2026
Value US$2,809,508.42 | Price 143.54 | Shares 19,573
Proposed sale 1 May 2026
Value US$2,809,508.42 | Price 143.54 | Shares 19,573
Sale 1 May 2026
Value US$243,695.00 | Price 143.35 | Shares 1,700
Proposed sale 1 May 2026
Value US$247,095.17 | Price 145.35 | Shares 1,700
Planned sale 30 Apr 2026
Value US$1,400,000.00 | Price 140.00 | Shares 10,000
Proposed sale 30 Apr 2026
Value US$1,400,000.00 | Price 140.00 | Shares 10,000
Planned sale 10 Apr 2026
Value US$3,847.36 | Price 120.23 | Shares 32
Planned sale 10 Apr 2026
Value US$73,280.90 | Price 119.35 | Shares 614
Planned sale 10 Apr 2026
Value US$24,664.50 | Price 117.45 | Shares 210
Planned sale 10 Apr 2026
Value US$144,382.64 | Price 116.72 | Shares 1,237
Proposed sale 10 Apr 2026
Value US$246,177.94 | Price 117.62 | Shares 2,093
Planned sale 25 Mar 2026
Value US$267,321.06 | Price 106.46 | Shares 2,511
Proposed sale 25 Mar 2026
Value US$267,321.06 | Price 106.46 | Shares 2,511
Planned sale 24 Mar 2026
Value US$160,070.04 | Price 105.24 | Shares 1,521
Proposed sale 24 Mar 2026
Value US$160,070.04 | Price 105.24 | Shares 1,521
Planned sale 17 Mar 2026
Value US$61,968.75 | Price 99.15 | Shares 625
Proposed sale 17 Mar 2026
Value US$61,968.75 | Price 99.15 | Shares 625
Planned sale 16 Mar 2026
Value US$26,941.60 | Price 99.05 | Shares 272
Planned sale 16 Mar 2026
Value US$29,364.79 | Price 98.21 | Shares 299
Planned sale 16 Mar 2026
Value US$44,771.80 | Price 97.33 | Shares 460
Proposed sale 16 Mar 2026
Value US$101,027.69 | Price 97.99 | Shares 1,031
Sale 19 Feb 2026
Value US$767,201.76 | Price 118.56 | Shares 6,471
Sale 19 Feb 2026
Value US$133,052.22 | Price 117.33 | Shares 1,134
Sale 19 Feb 2026
Value US$611,426.88 | Price 116.64 | Shares 5,242
Sale 19 Feb 2026
Value US$249,080.57 | Price 115.69 | Shares 2,153
Proposed sale 19 Feb 2026
Value US$1,792,050.00 | Price 119.47 | Shares 15,000
Planned sale 22 Jan 2026
Value US$168,714.00 | Price 129.78 | Shares 1,300
Planned sale 22 Jan 2026
Value US$558,400.75 | Price 129.11 | Shares 4,325
Planned sale 22 Jan 2026
Value US$213,754.32 | Price 127.92 | Shares 1,671
Planned sale 22 Jan 2026
Value US$494,128.32 | Price 126.96 | Shares 3,892
Planned sale 22 Jan 2026
Value US$480,578.84 | Price 126.07 | Shares 3,812
Proposed sale 22 Jan 2026
Value US$1,915,560.20 | Price 127.70 | Shares 15,000
Planned sale 22 Jan 2026
Value US$412,920.32 | Price 129.28 | Shares 3,194
Planned sale 22 Jan 2026
Value US$230,269.86 | Price 128.07 | Shares 1,798
Planned sale 22 Jan 2026
Value US$393,793.00 | Price 127.03 | Shares 3,100
Planned sale 22 Jan 2026
Value US$303,396.60 | Price 126.10 | Shares 2,406
Proposed sale 22 Jan 2026
Value US$1,340,378.21 | Price 127.68 | Shares 10,498
Planned sale 21 Jan 2026
Value US$561,174.30 | Price 124.65 | Shares 4,502
Proposed sale 21 Jan 2026
Value US$561,167.76 | Price 124.65 | Shares 4,502
Planned sale 16 Jan 2026
Value US$21,498,675.00 | Price 115.00 | Shares 186,945
Proposed sale 16 Jan 2026
Value US$21,498,675.00 | Price 115.00 | Shares 186,945
Planned sale 8 Jan 2026
Value US$10,126,325.00 | Price 115.00 | Shares 88,055
Proposed sale 8 Jan 2026
Value US$10,126,325.00 | Price 115.00 | Shares 88,055
Sale 9 Dec 2025
Value US$536,350.00 | Price 107.27 | Shares 5,000
Proposed sale 9 Dec 2025
Value US$536,368.18 | Price 107.27 | Shares 5,000
Planned sale 25 Nov 2025
Value US$33,075.00 | Price 105.00 | Shares 315
Proposed sale 25 Nov 2025
Value US$33,075.00 | Price 105.00 | Shares 315
Sale 18 Nov 2025
Value US$1,740,600.00 | Price 90.00 | Shares 19,340
Proposed sale 18 Nov 2025
Value US$1,740,600.00 | Price 90.00 | Shares 19,340
Planned sale 22 Sep 2025
Value US$23,377.20 | Price 84.70 | Shares 276
Planned sale 22 Sep 2025
Value US$18,259.68 | Price 83.76 | Shares 218
Planned sale 22 Sep 2025
Value US$1,904.17 | Price 82.79 | Shares 23
Proposed sale 22 Sep 2025
Value US$43,541.07 | Price 84.22 | Shares 517
Planned sale 11 Sep 2025
Value US$172,612.28 | Price 88.61 | Shares 1,948
Planned sale 11 Sep 2025
Value US$281,008.12 | Price 87.98 | Shares 3,194
Proposed sale 11 Sep 2025
Value US$453,607.98 | Price 88.22 | Shares 5,142
Planned sale 25 Mar 2025
Value US$3,352.34 | Price 108.14 | Shares 31
Planned sale 25 Mar 2025
Value US$46,199.20 | Price 107.44 | Shares 430
Planned sale 25 Mar 2025
Value US$112,847.04 | Price 106.56 | Shares 1,059
Proposed sale 25 Mar 2025
Value US$162,402.06 | Price 106.84 | Shares 1,520
Sale 26 Feb 2025
Value US$2,497,334.64 | Price 120.72 | Shares 20,687
Proposed sale 26 Feb 2025
Value US$2,497,262.60 | Price 120.72 | Shares 20,687
Planned sale 14 Feb 2025
Value US$502,630.24 | Price 147.14 | Shares 3,416
Proposed sale 14 Feb 2025
Value US$502,630.24 | Price 147.14 | Shares 3,416
Planned sale 20 Dec 2024
Value US$194,252.20 | Price 150.35 | Shares 1,292
Planned sale 20 Dec 2024
Value US$304,463.44 | Price 149.54 | Shares 2,036
Proposed sale 20 Dec 2024
Value US$548,017.24 | Price 149.85 | Shares 3,657
Planned sale 20 Dec 2024
Value US$1,502,800.00 | Price 150.28 | Shares 10,000
Proposed sale 20 Dec 2024
Value US$1,502,789.09 | Price 150.28 | Shares 10,000
Sale 11 Dec 2024
Value US$288,020.00 | Price 144.01 | Shares 2,000
Proposed sale 11 Dec 2024
Value US$288,015.25 | Price 144.01 | Shares 2,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-05-18 2026-05-14 S Sale Non-Executive Director
23,441 -6.3%
196.03
US$3,832,932
23,441 -6.3% 196.03 US$3,832,932
2026-05-14 2026-05-14 PrS Proposed sale

Director

Non-Executive Director
62,540
341.69
US$2,905,097
62,540 341.69 US$2,905,097
2026-05-13 2026-05-11 S Sale Non-Executive Director
92,352 +31.3%
320.10
US$1,150,151
92,352 +31.3% 320.10 US$1,150,151
2026-05-11 2026-05-11 PrS Proposed sale

Director

Non-Executive Director
5,000
135.00
US$675,000
5,000 135.00 US$675,000
2026-05-04 2026-05-01 S Sale

PRESIDENT & COO

Officer
19,573 -21.0%
143.54
US$2,809,508
19,573 -21.0% 143.54 US$2,809,508
2026-05-04 2026-05-01 S Sale Non-Executive Director
1,700 -7.9%
143.35
US$243,695
1,700 -7.9% 143.35 US$243,695
2026-05-01 2026-05-01 PrS Proposed sale

Director

Non-Executive Director
1,700
145.35
US$247,095
1,700 145.35 US$247,095
2026-05-01 2026-05-01 PrS Proposed sale

Officer

Officer
19,573
143.54
US$2,809,508
19,573 143.54 US$2,809,508
2026-05-04 2026-04-30 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
10,000 -18.6%
140.00
US$1,400,000
10,000 -18.6% 140.00 US$1,400,000
2026-04-30 2026-04-30 PrS Proposed sale

Officer

Officer
10,000
140.00
US$1,400,000
10,000 140.00 US$1,400,000
2026-04-14 2026-04-10 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
32 -0.0%
120.23
US$3,847
32 -0.0% 120.23 US$3,847
2026-04-14 2026-04-10 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
614 -0.7%
119.35
US$73,281
614 -0.7% 119.35 US$73,281
2026-04-14 2026-04-10 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
210 -0.2%
117.45
US$24,664
210 -0.2% 117.45 US$24,664
2026-04-14 2026-04-10 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
1,237 -1.3%
116.72
US$144,383
1,237 -1.3% 116.72 US$144,383
2026-04-10 2026-04-10 PrS Proposed sale

Officer

Officer
2,093
117.62
US$246,178
2,093 117.62 US$246,178
2026-03-27 2026-03-25 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
2,511 -5.6%
106.46
US$267,321
2,511 -5.6% 106.46 US$267,321
2026-03-25 2026-03-25 PrS Proposed sale

Officer

Officer
2,511
106.46
US$267,321
2,511 106.46 US$267,321
2026-03-25 2026-03-24 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
1,521 -3.2%
105.24
US$160,070
1,521 -3.2% 105.24 US$160,070
2026-03-24 2026-03-24 PrS Proposed sale

Officer

Officer
1,521
105.24
US$160,070
1,521 105.24 US$160,070
2026-03-19 2026-03-17 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
625 -1.3%
99.15
US$61,969
625 -1.3% 99.15 US$61,969
2026-03-17 2026-03-17 PrS Proposed sale

Officer

Officer
625
99.15
US$61,969
625 99.15 US$61,969
2026-03-19 2026-03-16 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
272 -0.4%
99.05
US$26,942
272 -0.4% 99.05 US$26,942
2026-03-19 2026-03-16 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
299 -0.4%
98.21
US$29,365
299 -0.4% 98.21 US$29,365
2026-03-19 2026-03-16 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
460 -0.6%
97.33
US$44,772
460 -0.6% 97.33 US$44,772
2026-03-16 2026-03-16 PrS Proposed sale

Officer

Officer
1,031
97.99
US$101,028
1,031 97.99 US$101,028
2026-02-23 2026-02-19 S Sale Non-Executive Director
6,471 -25.6%
118.56
US$767,202
6,471 -25.6% 118.56 US$767,202
2026-02-23 2026-02-19 S Sale Non-Executive Director
1,134 -4.3%
117.33
US$133,052
1,134 -4.3% 117.33 US$133,052
2026-02-23 2026-02-19 S Sale Non-Executive Director
5,242 -16.6%
116.64
US$611,427
5,242 -16.6% 116.64 US$611,427
2026-02-23 2026-02-19 S Sale Non-Executive Director
2,153 -6.4%
115.69
US$249,081
2,153 -6.4% 115.69 US$249,081
2026-02-19 2026-02-19 PrS Proposed sale

Director

Non-Executive Director
15,000
119.47
US$1,792,050
15,000 119.47 US$1,792,050
2026-01-26 2026-01-22 PlS Planned sale Non-Executive Director
1,300 -3.4%
129.78
US$168,714
1,300 -3.4% 129.78 US$168,714
2026-01-26 2026-01-22 PlS Planned sale Non-Executive Director
4,325 -10.0%
129.11
US$558,401
4,325 -10.0% 129.11 US$558,401
2026-01-26 2026-01-22 PlS Planned sale Non-Executive Director
1,671 -3.7%
127.92
US$213,754
1,671 -3.7% 127.92 US$213,754
2026-01-26 2026-01-22 PlS Planned sale Non-Executive Director
3,892 -8.0%
126.96
US$494,128
3,892 -8.0% 126.96 US$494,128
2026-01-26 2026-01-22 PlS Planned sale Non-Executive Director
3,812 -7.3%
126.07
US$480,579
3,812 -7.3% 126.07 US$480,579
2026-01-26 2026-01-22 PlS Planned sale

PRESIDENT & COO

Officer
3,194 -3.3%
129.28
US$412,920
3,194 -3.3% 129.28 US$412,920
2026-01-26 2026-01-22 PlS Planned sale

PRESIDENT & COO

Officer
1,798 -1.8%
128.07
US$230,270
1,798 -1.8% 128.07 US$230,270
2026-01-26 2026-01-22 PlS Planned sale

PRESIDENT & COO

Officer
3,100 -3.1%
127.03
US$393,793
3,100 -3.1% 127.03 US$393,793
2026-01-26 2026-01-22 PlS Planned sale

PRESIDENT & COO

Officer
2,406 -2.3%
126.10
US$303,397
2,406 -2.3% 126.10 US$303,397
2026-01-22 2026-01-22 PrS Proposed sale

Officer

Officer
10,498
127.68
US$1,340,378
10,498 127.68 US$1,340,378
2026-01-22 2026-01-22 PrS Proposed sale

Director

Non-Executive Director
15,000
127.70
US$1,915,560
15,000 127.70 US$1,915,560
2026-01-23 2026-01-21 PlS Planned sale

PRESIDENT & COO

Officer
4,502 -4.6%
124.65
US$561,174
4,502 -4.6% 124.65 US$561,174
2026-01-21 2026-01-21 PrS Proposed sale

Officer

Officer
4,502
124.65
US$561,168
4,502 124.65 US$561,168
2026-01-20 2026-01-16 PlS Planned sale

CHAIRMAN & CEO

Executive Director
186,945 -54.9%
115.00
US$21,498,675
186,945 -54.9% 115.00 US$21,498,675
2026-01-16 2026-01-16 PrS Proposed sale

Officer; Director

Executive Director
186,945
115.00
US$21,498,675
186,945 115.00 US$21,498,675
2026-01-20 2026-01-08 PlS Planned sale

CHAIRMAN & CEO

Executive Director
88,055 -36.4%
115.00
US$10,126,325
88,055 -36.4% 115.00 US$10,126,325
2026-01-08 2026-01-08 PrS Proposed sale

Officer; Director

Executive Director
88,055
115.00
US$10,126,325
88,055 115.00 US$10,126,325
2025-12-11 2025-12-09 S Sale Non-Executive Director
5,000 -12.5%
107.27
US$536,350
5,000 -12.5% 107.27 US$536,350
2025-12-09 2025-12-09 PrS Proposed sale

Director

Non-Executive Director
5,000
107.27
US$536,368
5,000 107.27 US$536,368
2025-11-26 2025-11-25 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
315 -0.6%
105.00
US$33,075
315 -0.6% 105.00 US$33,075
2025-11-25 2025-11-25 PrS Proposed sale

Officer

Officer
315
105.00
US$33,075
315 105.00 US$33,075
2025-11-20 2025-11-18 S Sale

PRESIDENT & COO

Officer
19,340 -17.3%
90.00
US$1,740,600
19,340 -17.3% 90.00 US$1,740,600
2025-11-18 2025-11-18 PrS Proposed sale

Officer

Officer
19,340
90.00
US$1,740,600
19,340 90.00 US$1,740,600
2025-09-24 2025-09-22 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
276 -0.4%
84.70
US$23,377
276 -0.4% 84.70 US$23,377
2025-09-24 2025-09-22 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
218 -0.3%
83.76
US$18,260
218 -0.3% 83.76 US$18,260
2025-09-24 2025-09-22 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
23 -0.0%
82.79
US$1,904
23 -0.0% 82.79 US$1,904
2025-09-22 2025-09-22 PrS Proposed sale

Officer

Officer
517
84.22
US$43,541
517 84.22 US$43,541
2025-09-12 2025-09-11 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
1,948 -2.5%
88.61
US$172,612
1,948 -2.5% 88.61 US$172,612
2025-09-12 2025-09-11 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
3,194 -4.0%
87.98
US$281,008
3,194 -4.0% 87.98 US$281,008
2025-09-11 2025-09-11 PrS Proposed sale

Officer

Officer
5,142
88.22
US$453,608
5,142 88.22 US$453,608
2025-03-27 2025-03-25 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
31 -0.1%
108.14
US$3,352
31 -0.1% 108.14 US$3,352
2025-03-27 2025-03-25 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
430 -0.8%
107.44
US$46,199
430 -0.8% 107.44 US$46,199
2025-03-27 2025-03-25 PlS Planned sale

SVP & CHIEF FINANCIAL OFFICER

Officer
1,059 -1.9%
106.56
US$112,847
1,059 -1.9% 106.56 US$112,847
2025-03-25 2025-03-25 PrS Proposed sale

Officer

Officer
1,520
106.84
US$162,402
1,520 106.84 US$162,402
2025-02-28 2025-02-26 S Sale Non-Executive Director
20,687 -27.6%
120.72
US$2,497,335
20,687 -27.6% 120.72 US$2,497,335
2025-02-26 2025-02-26 PrS Proposed sale

Director

Non-Executive Director
20,687
120.72
US$2,497,263
20,687 120.72 US$2,497,263
2025-02-19 2025-02-14 PlS Planned sale

CHIEF DEVELOPMENT OFFICER

Officer
3,416 -4.5%
147.14
US$502,630
3,416 -4.5% 147.14 US$502,630
2025-02-14 2025-02-14 PrS Proposed sale

Officer

Officer
3,416
147.14
US$502,630
3,416 147.14 US$502,630
2024-12-23 2024-12-20 PlS Planned sale

PRESIDENT & COO

Officer
1,292 -1.2%
150.35
US$194,252
1,292 -1.2% 150.35 US$194,252
2024-12-23 2024-12-20 PlS Planned sale

PRESIDENT & COO

Officer
2,036 -1.9%
149.54
US$304,463
2,036 -1.9% 149.54 US$304,463
2024-12-23 2024-12-20 PlS Planned sale Non-Executive Director
10,000 -23.6%
150.28
US$1,502,800
10,000 -23.6% 150.28 US$1,502,800
2024-12-20 2024-12-20 PrS Proposed sale

Officer

Officer
3,657
149.85
US$548,017
3,657 149.85 US$548,017
2024-12-20 2024-12-20 PrS Proposed sale

Director

Non-Executive Director
10,000
150.28
US$1,502,789
10,000 150.28 US$1,502,789
2024-12-13 2024-12-11 S Sale Non-Executive Director
2,000 -5.8%
144.01
US$288,020
2,000 -5.8% 144.01 US$288,020
2024-12-11 2024-12-11 PrS Proposed sale

Director

Non-Executive Director
2,000
144.01
US$288,015
2,000 144.01 US$288,015