GKOS Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 5.90%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $65,434,302.96

Glaukos Insider Trading History Chart

Glaukos Share Price & Price History

^$248.00

▲ +14.963 (6.42%)

As of 11/4/2026 03:59 PM ET

Days: 30 | 90 | 365

Glaukos Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
8/19/2026	Gilbert H. Kliman	Director	Sell	2,500	$190.00	$475,000.00	37,406
8/11/2026	Joseph E Gilliam	COO	Sell	60,000	$179.74	$10,784,400.00	72,588
8/7/2026	Alex R. Thurman	CFO	Sell	20,000	$180.13	$3,602,600.00	43,906
7/31/2026	Leana Wen	Director	Sell	525	$167.63	$88,005.75	21,092
7/16/2026	Alex R. Thurman	CFO	Sell	10,000	$160.00	$1,600,000.00	43,906
7/9/2026	Alex R. Thurman	CFO	Sell	10,000	$155.00	$1,550,000.00	43,681
7/6/2026	Alex R. Thurman	CFO	Sell	10,000	$150.00	$1,500,000.00	43,681
5/14/2026	Gilbert H. Kliman	Director	Sell	5,000	$140.76	$703,800.00	35,528
5/11/2026	Gilbert H. Kliman	Director	Sell	5,000	$135.00	$675,000.00	35,528
5/1/2026	Joseph E Gilliam	COO	Sell	19,573	$143.54	$2,809,508.42	73,419
5/1/2026	Leana Wen	Director	Sell	1,700	$143.35	$243,695.00	19,739
4/30/2026	Alex R. Thurman	CFO	Sell	10,000	$140.00	$1,400,000.00	43,681
3/25/2026	Alex R. Thurman	CFO	Sell	2,511	$106.46	$267,321.06	41,967
3/24/2026	Alex R. Thurman	CFO	Sell	1,521	$105.24	$160,070.04	46,498
3/17/2026	Alex R. Thurman	CFO	Sell	625	$99.15	$61,968.75	49,249
2/19/2026	Aimee S. Weisner	Director	Sell	15,000	$117.38	$1,760,700.00	18,806
1/22/2026	Joseph E Gilliam	COO	Sell	10,498	$127.68	$1,340,384.64	92,366
1/22/2026	Marc Stapley	Director	Sell	15,000	$127.71	$1,915,650.00	37,449
1/21/2026	Joseph E Gilliam	COO	Sell	4,502	$124.65	$561,174.30	92,366
1/16/2026	Thomas William Burns	CEO	Sell	186,945	$115.00	$21,498,675.00	153,775
1/8/2026	Thomas William Burns	CEO	Sell	88,055	$115.00	$10,126,325.00	153,775
12/9/2025	Gilbert H. Kliman	Director	Sell	5,000	$107.27	$536,350.00	34,905
11/25/2025	Alex R. Thurman	CFO	Sell	315	$105.00	$33,075.00	50,488
11/18/2025	Joseph E Gilliam	COO	Sell	19,340	$90.00	$1,740,600.00	92,366
3/25/2025	Alex R. Thurman	CFO	Sell	1,520	$106.84	$162,396.80	53,431
2/14/2025	Tomas Navratil	Insider	Sell	3,416	$147.14	$502,630.24	72,437
12/20/2024	Gilbert H. Kliman	Director	Sell	10,000	$150.28	$1,502,800.00	32,336
12/20/2024	Joseph E Gilliam	COO	Sell	3,328	$149.85	$498,700.80	102,169
12/11/2024	Gilbert H. Kliman	Director	Sell	2,000	$144.01	$288,020.00	32,336
10/30/2024	Joseph E Gilliam	COO	Sell	2,275	$138.97	$316,156.75	102,169
9/9/2024	Gilbert H. Kliman	Director	Sell	3,000	$130.67	$392,010.00	32,336
8/21/2024	Joseph E Gilliam	COO	Sell	5,000	$129.36	$646,800.00	102,169
8/15/2024	Marc Stapley	Director	Sell	6,250	$125.93	$787,062.50	34,076
8/8/2024	Aimee S. Weisner	Director	Sell	25,000	$120.00	$3,000,000.00	30,119
7/5/2024	Joseph E Gilliam	COO	Sell	2,250	$121.39	$273,127.50	101,845
6/3/2024	Joseph E Gilliam	COO	Sell	2,500	$113.50	$283,750.00	101,845
5/30/2024	Gilbert H. Kliman	Director	Sell	5,000	$112.00	$560,000.00	30,620
5/15/2024	Marc Stapley	Director	Sell	6,250	$112.80	$705,000.00	32,360
5/10/2024	Alex R. Thurman	CFO	Sell	353	$110.51	$39,010.03	51,647
5/10/2024	Joseph E Gilliam	COO	Sell	2,395	$110.56	$264,791.20	101,845
5/6/2024	Alex R. Thurman	CFO	Sell	90	$110.26	$9,923.40	52,000
5/6/2024	Joseph E Gilliam	COO	Sell	105	$110.36	$11,587.80	101,845
5/2/2024	Alex R. Thurman	CFO	Sell	442	$105.69	$46,714.98	52,090
5/2/2024	Joseph E Gilliam	COO	Sell	2,059	$105.52	$217,265.68	101,845
4/8/2024	Alex R. Thurman	CFO	Sell	1,372	$100.54	$137,940.88	52,532
4/8/2024	Joseph E Gilliam	COO	Sell	59,801	$100.47	$6,008,206.47	101,845
4/4/2024	Alex R. Thurman	CFO	Sell	434	$95.33	$41,373.22	54,166
4/4/2024	Joseph E Gilliam	COO	Sell	200	$96.57	$19,314.00	101,845
4/2/2024	Alex R. Thurman	CFO	Sell	474	$90.37	$42,835.38	54,916
3/7/2024	Gilbert H. Kliman	Director	Sell	5,000	$88.25	$441,250.00	30,620
2/29/2024	Marc Stapley	Director	Sell	6,250	$90.09	$563,062.50	32,360
2/27/2024	Gilbert H. Kliman	Director	Sell	8,000	$92.00	$736,000.00	8,347
2/23/2024	Joseph E Gilliam	COO	Sell	140,245	$92.14	$12,922,174.30	98,388
2/23/2024	Mark J. Foley	Director	Sell	4,560	$92.87	$423,487.20	33,220
2/12/2024	Joseph E Gilliam	COO	Sell	1,512	$96.80	$146,361.60	119,802
2/8/2024	Joseph E Gilliam	COO	Sell	5,000	$96.07	$480,350.00	119,802
2/7/2024	Alex R. Thurman	CFO	Sell	33	$95.00	$3,135.00	54,585
1/29/2024	Joseph E Gilliam	COO	Sell	9,476	$94.12	$891,881.12	119,802
1/22/2024	Joseph E Gilliam	COO	Sell	524	$94.01	$49,261.24	119,802
1/18/2024	Alex R. Thurman	CFO	Sell	583	$90.54	$52,784.82	54,618
1/16/2024	Joseph E Gilliam	COO	Sell	4,890	$89.17	$436,041.30	119,802
1/12/2024	Joseph E Gilliam	COO	Sell	110	$89.01	$9,791.10	119,802
1/8/2024	Thomas William Burns	CEO	Sell	60,000	$82.55	$4,953,000.00	55,835
12/21/2023	Alex R. Thurman	CFO	Sell	583	$85.14	$49,636.62	55,242
12/21/2023	Joseph E Gilliam	COO	Sell	25,000	$84.80	$2,120,000.00	120,001
12/21/2023	Thomas William Burns	CEO	Sell	79,684	$85.21	$6,789,873.64	55,835
12/15/2023	Alex R. Thurman	CFO	Sell	1,270	$79.80	$101,346.00	55,825
12/15/2023	Thomas William Burns	CEO	Sell	60,000	$80.94	$4,856,400.00	55,835
12/14/2023	Marc Stapley	Director	Sell	16,250	$75.93	$1,233,862.50	31,316

SEC Filings (Institutional Ownership Changes) for Glaukos (NYSE:GKOS)

99.04% of Glaukos stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Glaukos Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/4/2026	New York Life Investment Management LLC	8,801	$1.45M	0.0%	N/A	0.015%
11/4/2026	M&G PLC	85,652	$14.05M	0.1%	N/A	0.145%
11/4/2026	Fulcrum Asset Management LLP	184	$29K	0.0%	+91.7%	0.000%
11/4/2026	Allspring Global Investments Holdings LLC	347,235	$56.66M	0.1%	-16.9%	0.587%
11/3/2026	Ethic Inc.	2,747	$0.45M	0.0%	N/A	0.005%
11/3/2026	Pictet Asset Management Holding SA	8,865	$1.46M	0.0%	+8.4%	0.015%
11/3/2026	Parallel Advisors LLC	438	$72K	0.0%	+14.4%	0.001%
11/2/2026	Kestra Advisory Services LLC	1,219	$0.20M	0.0%	N/A	0.002%
11/2/2026	TFB Advisors LLC	4,081	$0.67M	0.3%	+4.5%	0.007%
10/30/2026	Provenance Wealth Advisors LLC	271	$44K	0.0%	N/A	0.000%
10/30/2026	Oregon Public Employees Retirement Fund	13,191	$2.17M	0.0%	-0.8%	0.022%
10/30/2026	Factory Mutual Insurance Co.	2,129	$0.35M	0.0%	N/A	0.004%
10/29/2026	Virtue Capital Management LLC	1,843	$0.30M	0.0%	N/A	0.003%
10/29/2026	Sumitomo Mitsui Trust Group Inc.	7,601	$1.25M	0.0%	N/A	0.013%
10/29/2026	Profund Advisors LLC	2,682	$0.44M	0.0%	-13.7%	0.005%
10/29/2026	ProShare Advisors LLC	7,925	$1.30M	0.0%	-3.8%	0.013%
10/29/2026	Vise Technologies Inc.	4,067	$0.67M	0.0%	N/A	0.007%
10/29/2026	Summit Global Investments	3,170	$0.52M	0.0%	-23.6%	0.005%
10/29/2026	State of Wyoming	1,030	$0.17M	0.0%	+6.8%	0.002%
10/28/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	4,800	$0.79M	0.0%	-11.1%	0.008%
10/28/2026	Choreo LLC	3,546	$0.58M	0.0%	+4.0%	0.006%
10/23/2026	Taylor Frigon Capital Management LLC	21,776	$3.58M	1.8%	-6.9%	0.037%
10/23/2026	Fifth Third Wealth Advisors LLC	2,172	$0.36M	0.0%	+35.6%	0.004%
10/23/2026	Sterling Capital Management LLC	1,903	$0.31M	0.0%	+837.4%	0.003%
10/23/2026	Inspire Investing LLC	6,886	$1.13M	0.0%	+16.2%	0.012%
10/22/2026	Yousif Capital Management LLC	15,748	$2.59M	0.0%	-1.8%	0.027%
10/22/2026	Root Financial Partners LLC	1,614	$0.27M	0.0%	N/A	0.003%
10/22/2026	Reyes Financial Architecture Inc.	737	$0.12M	0.1%	N/A	0.001%
10/21/2026	Crossmark Global Holdings Inc.	4,627	$0.76M	0.0%	-2.6%	0.008%
10/21/2026	Quadrant Capital Group LLC	5,630	$0.93M	0.0%	-18.2%	0.010%
10/21/2026	Nisa Investment Advisors LLC	4,268	$0.70M	0.0%	+59.3%	0.007%
10/19/2026	Abel Hall LLC	3,236	$0.53M	0.1%	+3.5%	0.005%
10/17/2026	SteelPeak Wealth LLC	3,282	$0.54M	0.0%	+5.3%	0.006%
10/16/2026	Michael J. Porro & Co. Financial Advisors Inc.	5,303	$0.87M	0.5%	-2.6%	0.009%
10/15/2026	Assenagon Asset Management S.A.	98,101	$16.11M	0.0%	-9.8%	0.166%
10/15/2026	State of Alaska Department of Revenue	9,950	$1.63M	0.0%	-48.6%	0.017%
10/15/2026	Fortitude Family Office LLC	217	$36K	0.0%	N/A	0.000%
10/14/2026	Seelaus Asset Management LLC	1,807	$0.30M	0.2%	-10.5%	0.003%
10/13/2026	Avior Wealth Management LLC	1,356	$0.22M	0.0%	N/A	0.002%
10/9/2026	GAMMA Investing LLC	4,569	$0.75M	0.0%	+44.4%	0.008%
10/8/2026	Farther Finance Advisors LLC	681	$0.11M	0.0%	+25.4%	0.001%
10/8/2026	CoreCap Advisors LLC	200	$33K	0.0%	N/A	0.000%
10/8/2026	Valeo Financial Advisors LLC	9,666	$1.59M	0.0%	-2.3%	0.016%
9/9/2026	Sequoia Financial Advisors LLC	2,311	$0.32M	0.0%	+11.3%	0.004%
9/9/2026	Tidal Investments LLC	5,142	$0.72M	0.0%	-15.7%	0.009%
9/9/2026	Integrated Wealth Concepts LLC	1,811	$0.25M	0.0%	N/A	0.003%
9/9/2026	IFP Advisors Inc	293	$41K	0.0%	+523.4%	0.000%
9/9/2026	Squarepoint Ops LLC	14,167	$1.98M	0.0%	-86.9%	0.024%
9/8/2026	Arizona State Retirement System	15,224	$2.13M	0.0%	-3.5%	0.026%
9/8/2026	Nykredit A S	1,963	$0.27M	0.0%	N/A	0.003%
9/4/2026	Parkside Financial Bank & Trust	2,153	$0.30M	0.0%	+20.5%	0.004%
8/27/2026	Corient Private Wealth LP	57,046	$7.97M	0.0%	+0.2%	0.097%
8/26/2026	Amundi	22,118	$3.09M	0.0%	-15.6%	0.038%
8/26/2026	HighTower Advisors LLC	3,757	$0.53M	0.0%	-27.3%	0.006%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	5,400	$0.76M	0.0%	N/A	0.009%
8/21/2026	Braidwell LP	591,927	$82.73M	3.1%	-22.5%	1.004%
8/21/2026	Nykredit A S	1,963	$0.27M	0.0%	N/A	0.003%
8/20/2026	Susquehanna Fundamental Investments LLC	24,049	$3.36M	0.1%	N/A	0.041%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	138,990	$19.43M	0.0%	-3.3%	0.236%
8/19/2026	Van ECK Associates Corp	2,552	$0.36M	0.0%	-12.3%	0.004%
8/19/2026	Braun Stacey Associates Inc.	55,010	$7.69M	0.2%	N/A	0.093%
8/19/2026	Wellington Management Group LLP	428,215	$59.85M	0.0%	+187.1%	0.726%
8/19/2026	Archer Investment Corp	1,594	$0.22M	0.0%	N/A	0.003%
8/18/2026	Jefferies Financial Group Inc.	7,856	$1.10M	0.0%	N/A	0.013%
8/17/2026	Corient Private Wealth LP	57,048	$7.97M	0.0%	N/A	0.097%
8/17/2026	Bank of America Corp DE	587,327	$82.09M	0.0%	N/A	0.996%
8/15/2026	Jupiter Topco LLC	4,862,894	$679.61M	0.3%	N/A	8.245%
8/14/2026	Hsbc Holdings PLC	1,915	$0.27M	0.0%	N/A	0.003%
8/14/2026	EFG International AG	51,290	$7.16M	0.1%	N/A	0.087%
8/14/2026	Primecap Management Co. CA	3,040,705	$424.97M	0.3%	N/A	5.155%
8/14/2026	Canada Pension Plan Investment Board	87,500	$12.23M	0.0%	N/A	0.148%
8/14/2026	Osterweis Capital Management Inc.	40,539	$5.67M	0.3%	N/A	0.069%
8/14/2026	Legal & General Group Plc	165,836	$23.18M	0.0%	N/A	0.281%
8/14/2026	The Manufacturers Life Insurance Company	29,931	$4.18M	0.0%	N/A	0.051%
8/14/2026	Algert Global LLC	30,871	$4.32M	0.1%	-43.0%	0.052%
8/13/2026	Sanctuary Advisors LLC	4,778	$0.67M	0.0%	N/A	0.008%
8/12/2026	Elevation Point Wealth Partners LLC	2,406	$0.34M	0.0%	N/A	0.004%
8/12/2026	William Blair Investment Management LLC	661,675	$92.48M	0.3%	N/A	1.122%
8/12/2026	Fund Advisors of America Inc FL	1,851	$0.26M	0.2%	N/A	0.003%
8/11/2026	Allworth Financial LP	198	$28K	0.0%	N/A	0.000%
8/11/2026	B. Metzler seel. Sohn & Co. AG	10,339	$1.45M	0.0%	N/A	0.018%
8/7/2026	BlackRock Inc.	9,540,056	$1.33B	0.0%	N/A	16.174%
8/7/2026	Deutsche Bank AG	61,957	$8.66M	0.0%	N/A	0.105%
8/7/2026	TimesSquare Capital Management LLC	145,202	$20.29M	0.3%	N/A	0.246%
8/6/2026	Bank of New York Mellon Corp	357,148	$49.92M	0.0%	N/A	0.606%
8/6/2026	State of Wyoming	964	$0.14M	0.0%	N/A	0.002%
8/3/2026	Summit Global Investments	4,149	$0.58M	0.0%	N/A	0.007%
8/3/2026	Oppenheimer Asset Management Inc.	19,564	$2.73M	0.0%	N/A	0.033%
8/3/2026	Walleye Capital LLC	26,835	$3.75M	0.0%	N/A	0.045%
7/10/2026	Handelsbanken Fonder AB	19,800	$2.77M	0.0%	+5.9%	0.034%
7/9/2026	Valeo Financial Advisors LLC	9,892	$1.38M	0.0%	+4.7%	0.017%
7/8/2026	Trust Point Inc.	3,640	$0.51M	0.0%	-14.2%	0.006%
7/8/2026	Assenagon Asset Management S.A.	108,736	$15.20M	0.0%	+932.5%	0.185%
7/7/2026	GAMMA Investing LLC	3,165	$0.44M	0.0%	+35.4%	0.005%
7/7/2026	Moody National Bank Trust Division	1,762	$0.25M	0.0%	N/A	0.003%
7/6/2026	Stonebridge Financial Group LLC	1,996	$0.28M	0.0%	-6.1%	0.003%
6/3/2026	Parallel Advisors LLC	368	$40K	0.0%	+159.2%	0.001%
5/22/2026	Segall Bryant & Hamill LLC	124,951	$13.45M	0.2%	-4.9%	0.213%
5/19/2026	Bank of America Corp DE	657,432	$70.78M	0.0%	+22.0%	1.119%
5/19/2026	Janus Henderson Group PLC	5,348,395	$575.84M	0.3%	+77.2%	9.107%

Data available starting January 2016

Glaukos Corporation, an ophthalmic pharmaceutical and medical technology company, focuses on the development of novel therapies for the treatment of glaucoma, corneal disorders, and retinal diseases. It offers iStent and iStent inject W micro-bypass stents that enhance aqueous humor outflow inserted in cataract surgery to treat mild-to-moderate open-angle glaucoma. The company's product pipeline includes iStent Infinite indicated for use in the treatment of patients with glaucoma uncontrolled by prior medical and surgical therapy; and iDose TR, an intracameral procedural pharmaceutical therapy indicated for the reduction of intraocular pressure in patients with open-angle glaucoma or ocular hypertension. The company markets its products through direct sales organization, as well as through distributors in the United States and internationally. Glaukos Corporation was incorporated in 1998 and is headquartered in Aliso Viejo, California.

Today's Range

Now: $248.00

$235.27

$255.19

50 Day Range

MA: $176.61

$153.63

$248.00

52 Week Range

Now: $248.00

$80.90

$255.19

Volume

2,081,011 shs

Average Volume

1,925,580 shs

Market Capitalization

$14.68 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.68

Who are the company insiders with the largest holdings of Glaukos?: Glaukos' top insider investors include:
Thomas William Burns (CEO)
Chris M Calcaterra (Insider)
Chris M Calcaterra (COO)
Joseph E Gilliam (COO)
Joseph E Gilliam (CFO)
Tomas Navratil (Insider)
Alex R Thurman (CFO)
Marc Stapley (Director)
Gilbert H Kliman (Director)
Mark J Foley (Director)
Learn More about top insider investors at Glaukos.
Who are the major institutional investors of Glaukos?: Glaukos' top institutional investors include:
Assenagon Asset Management S.A. — 0.17%
Taylor Frigon Capital Management LLC — 0.04%
Yousif Capital Management LLC — 0.03%
Oregon Public Employees Retirement Fund — 0.02%
State of Alaska Department of Revenue — 0.02%
Valeo Financial Advisors LLC — 0.02%
Learn More about top institutional investors of Glaukos stock.
Which institutional investors are selling Glaukos stock?: Within the previous quarter, GKOS stock was sold by these institutional investors:
Assenagon Asset Management S.A.
State of Alaska Department of Revenue
Taylor Frigon Capital Management LLC
Quadrant Capital Group LLC
Summit Global Investments
VIRGINIA RETIREMENT SYSTEMS ET Al
Profund Advisors LLC
ProShare Advisors LLC
During the previous year, company insiders that have sold Glaukos company stock include:
Thomas William Burns (CEO)
Joseph E Gilliam (COO)
Alex R Thurman (CFO)
Marc Stapley (Director)
Gilbert H Kliman (Director)
Leana Wen (Director)
Aimee S Weisner (Director)
Learn More investors selling Glaukos stock.
Which institutional investors are buying Glaukos stock?: Within the previous quarter, GKOS stock was purchased by institutional investors including:
Sumitomo Mitsui Trust Group Inc.
Vise Technologies Inc.
Ethic Inc.
Factory Mutual Insurance Co.
Virtue Capital Management LLC
Sterling Capital Management LLC
Root Financial Partners LLC
Nisa Investment Advisors LLC