GKOS Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 6.40%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $10,507,747.68

Glaukos Insider Trading History Chart

Glaukos Share Price & Price History

^$90.15

▲ +1.352 (1.52%)

As of 04/17/2025 04:59 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
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
10/2/2023	Thomas William Burns	CEO	Sell	45,000	$71.98	$3,239,100.00	54,785
8/4/2023	Gilbert H. Kliman	Director	Sell	10,000	$74.56	$745,600.00	29,725
7/19/2023	Thomas William Burns	CEO	Sell	200	$80.01	$16,002.00	673,963
7/14/2023	Joseph E Gilliam	COO	Sell	42,099	$78.34	$3,298,035.66	120,484
7/14/2023	Thomas William Burns	CEO	Sell	30,000	$77.95	$2,338,500.00	673,963
7/12/2023	Joseph E Gilliam	COO	Sell	2,700	$73.09	$197,343.00	120,484
7/10/2023	Thomas William Burns	CEO	Sell	13,440	$70.87	$952,492.80	673,963
7/7/2023	Thomas William Burns	CEO	Sell	133	$70.00	$9,310.00	673,963
7/5/2023	Thomas William Burns	CEO	Sell	5,027	$70.02	$351,990.54	673,963
7/3/2023	Thomas William Burns	CEO	Sell	26,400	$69.51	$1,835,064.00	673,963
6/28/2023	Thomas William Burns	CEO	Sell	26,810	$70.19	$1,881,793.90	673,963
6/7/2023	Thomas William Burns	CEO	Sell	17,382	$67.20	$1,168,070.40	673,963
6/2/2023	Thomas William Burns	CEO	Sell	142	$60.00	$8,520.00	673,963
5/23/2023	Thomas William Burns	CEO	Sell	7	$60.00	$420.00	673,963
5/18/2023	Thomas William Burns	CEO	Sell	11,662	$60.17	$701,702.54	673,963
5/16/2023	Thomas William Burns	CEO	Sell	3,704	$60.01	$222,277.04	673,963
8/5/2022	Gilbert H. Kliman	Director	Sell	3,362	$53.01	$178,219.62	27,305

See Full Table

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
4/17/2025	Trust Point Inc.	2,999	$0.30M	0.0%	-53.7%	0.005%
4/17/2025	Exchange Traded Concepts LLC	6,626	$0.65M	0.0%	+27.5%	0.012%
4/16/2025	Caldwell Sutter Capital Inc.	2,913	$0.29M	0.1%	-25.6%	0.005%
4/16/2025	Elevation Point Wealth Partners LLC	3,221	$0.32M	0.0%	+78.2%	0.006%
4/15/2025	Handelsbanken Fonder AB	18,400	$1.81M	0.0%	+25.2%	0.033%
4/15/2025	SG Americas Securities LLC	4,924	$0.49M	0.0%	+35.2%	0.009%
4/15/2025	GAMMA Investing LLC	1,352	$0.13M	0.0%	-38.9%	0.002%
4/14/2025	Yousif Capital Management LLC	20,777	$2.05M	0.0%	-2.3%	0.037%
4/14/2025	Harbor Capital Advisors Inc.	39,132	$3.85M	0.2%	+59.5%	0.069%
4/10/2025	Whipplewood Advisors LLC	284	$28K	0.0%	+3,957.1%	0.001%
4/9/2025	LVW Advisors LLC	2,408	$0.24M	0.0%	+5.9%	0.004%
4/8/2025	Rhumbline Advisers	141,354	$13.91M	0.0%	-0.3%	0.250%
4/7/2025	GAMMA Investing LLC	133,064	$13.10M	0.0%	+5,912.8%	0.235%
4/3/2025	Versant Capital Management Inc	383	$38K	0.0%	+583.9%	0.001%
3/18/2025	California State Teachers Retirement System	50,949	$7.64M	0.0%	+7.2%	0.090%
2/28/2025	Universal Beteiligungs und Servicegesellschaft mbH	82,477	$12.37M	0.0%	N/A	0.150%
2/25/2025	Polar Asset Management Partners Inc.	159,710	$23.95M	0.3%	-26.7%	0.290%
2/20/2025	Forum Financial Management LP	1,406	$0.21M	0.0%	N/A	0.003%
2/18/2025	Castleark Management LLC	51,340	$7.70M	0.3%	-30.5%	0.093%
2/17/2025	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	162,326	$24.34M	0.0%	+20.7%	0.294%
2/17/2025	Tidal Investments LLC	8,081	$1.21M	0.0%	-45.8%	0.015%
2/17/2025	State of Wyoming	3,245	$0.49M	0.1%	+2.3%	0.006%
2/17/2025	Thornburg Investment Management Inc.	45,583	$6.84M	0.1%	+18.4%	0.083%
2/17/2025	Royal Bank of Canada	112,310	$16.84M	0.0%	-41.6%	0.204%
2/17/2025	Point72 Asset Management L.P.	280,312	$42.03M	0.1%	-26.9%	0.508%
2/17/2025	Polar Asset Management Partners Inc.	159,710	$23.95M	0.4%	-26.7%	0.290%
2/17/2025	ProShare Advisors LLC	14,869	$2.23M	0.0%	+44.0%	0.027%
2/17/2025	Nicholas Investment Partners LP	31,961	$4.79M	0.4%	+54.2%	0.058%
2/17/2025	Nuveen Asset Management LLC	314,963	$47.23M	0.0%	+0.9%	0.571%
2/17/2025	Occudo Quantitative Strategies LP	2,420	$0.36M	0.1%	-42.9%	0.004%
2/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	30,349	$4.55M	0.0%	+3.4%	0.055%
2/17/2025	Lazard Asset Management LLC	13,911	$2.09M	0.0%	+228.2%	0.025%
2/17/2025	LMR Partners LLP	32,929	$4.94M	0.0%	-11.0%	0.060%
2/17/2025	Iron Triangle Partners LP	150,000	$22.49M	2.5%	-31.1%	0.272%
2/17/2025	Janus Henderson Group PLC	1,092,417	$163.80M	0.1%	-17.6%	1.981%
2/17/2025	Focus Partners Wealth	2,528	$0.38M	0.0%	N/A	0.005%
2/17/2025	Ensign Peak Advisors Inc	62,205	$9.33M	0.0%	+4.4%	0.113%
2/17/2025	Fred Alger Management LLC	764,958	$114.70M	0.5%	-29.0%	1.387%
2/17/2025	D. E. Shaw & Co. Inc.	2,701	$0.41M	0.0%	-99.5%	0.005%
2/17/2025	Deutsche Bank AG	43,859	$6.58M	0.0%	+49.6%	0.080%
2/17/2025	Driehaus Capital Management LLC	820,123	$122.97M	1.0%	-4.8%	1.487%
2/17/2025	Divisadero Street Capital Management LP	1,791	$0.27M	0.0%	N/A	0.003%
2/17/2025	CoreCap Advisors LLC	750	$0.11M	0.0%	+36.4%	0.001%
2/17/2025	Cetera Investment Advisers	1,504	$0.23M	0.0%	-46.5%	0.003%
2/17/2025	BOKF NA	3,798	$0.60M	0.0%	N/A	0.007%
2/17/2025	Braidwell LP	288,876	$43.31M	1.3%	-7.3%	0.524%
2/17/2025	Brevan Howard Capital Management LP	3,671	$0.55M	0.0%	N/A	0.007%
2/17/2025	Avidity Partners Management LP	170,000	$25.49M	2.5%	-50.7%	0.308%
2/17/2025	Balyasny Asset Management L.P.	31,752	$4.76M	0.0%	N/A	0.058%
2/17/2025	Baird Financial Group Inc.	54,591	$8.19M	0.0%	-27.7%	0.099%
2/17/2025	Bellevue Group AG	60,875	$9.13M	0.2%	-3.3%	0.110%
2/17/2025	Bank of America Corp DE	209,373	$31.39M	0.0%	-30.3%	0.380%
2/17/2025	BNP Paribas Financial Markets	7,676	$1.15M	0.0%	-44.1%	0.014%
2/17/2025	Algert Global LLC	18,821	$2.82M	0.1%	+41.9%	0.034%
2/14/2025	Comerica Bank	151,538	$22.72M	0.1%	+664.5%	0.275%
2/14/2025	Lido Advisors LLC	16,542	$2.48M	0.0%	+0.8%	0.030%
2/14/2025	Northern Trust Corp	578,673	$86.77M	0.0%	+7.4%	1.050%
2/14/2025	The Manufacturers Life Insurance Company	27,832	$4.17M	0.0%	-1.8%	0.050%
2/14/2025	Susquehanna Fundamental Investments LLC	12,689	$1.90M	0.0%	N/A	0.023%
2/14/2025	Gilder Gagnon Howe & Co. LLC	825,276	$123.74M	1.3%	+25.3%	1.497%
2/14/2025	Coldstream Capital Management Inc.	1,385	$0.21M	0.0%	N/A	0.003%
2/14/2025	Lord Abbett & CO. LLC	1,309,506	$196.35M	0.6%	-88.6%	2.375%
2/14/2025	Science & Technology Partners L.P.	51,750	$7.76M	2.4%	N/A	0.094%
2/14/2025	Voya Investment Management LLC	200,698	$30.09M	0.0%	+266.2%	0.364%
2/14/2025	Adage Capital Partners GP L.L.C.	23,398	$3.51M	0.0%	-86.5%	0.042%
2/14/2025	Price T Rowe Associates Inc. MD	35,182	$5.28M	0.0%	+13.7%	0.064%
2/14/2025	Hsbc Holdings PLC	1,419	$0.21M	0.0%	-79.8%	0.003%
2/14/2025	Stifel Financial Corp	4,341	$0.65M	0.0%	+2.6%	0.008%
2/14/2025	State of Tennessee Department of Treasury	24,021	$3.60M	0.0%	+5.9%	0.044%
2/14/2025	Tower Research Capital LLC TRC	2,397	$0.36M	0.0%	-11.1%	0.004%
2/14/2025	MetLife Investment Management LLC	29,561	$4.43M	0.0%	+5.9%	0.054%
2/14/2025	BI Asset Management Fondsmaeglerselskab A S	1,216	$0.18M	0.0%	N/A	0.002%
2/14/2025	Dimensional Fund Advisors LP	312,314	$46.83M	0.0%	+9.3%	0.566%
2/14/2025	First Trust Advisors LP	59,874	$8.98M	0.0%	-25.9%	0.109%
2/14/2025	Forum Financial Management LP	1,406	$0.21M	0.0%	N/A	0.003%
2/14/2025	Altium Capital Management LLC	40,000	$6M	1.7%	-48.1%	0.073%
2/13/2025	CANADA LIFE ASSURANCE Co	64,929	$9.75M	0.0%	+0.9%	0.118%
2/13/2025	Canada Pension Plan Investment Board	1,600	$0.24M	0.0%	-40.7%	0.003%
2/13/2025	Farringdon Capital Ltd.	1,627	$0.24M	0.1%	N/A	0.003%
2/13/2025	EAM Investors LLC	42,300	$6.34M	0.9%	-2.2%	0.077%
2/13/2025	Evergreen Capital Management LLC	3,472	$0.52M	0.0%	+5.4%	0.006%
2/13/2025	Bridgewater Associates LP	5,820	$0.87M	0.0%	-30.5%	0.011%
2/13/2025	Mariner LLC	6,249	$0.94M	0.0%	-11.1%	0.011%
2/13/2025	Barclays PLC	91,785	$13.76M	0.0%	+2.3%	0.166%
2/13/2025	Summit Investment Advisors Inc.	5,007	$0.75M	0.7%	+3.0%	0.009%
2/13/2025	Granite Investment Partners LLC	21,845	$3.28M	0.1%	-7.3%	0.040%
2/13/2025	Neuberger Berman Group LLC	57,458	$8.62M	0.0%	-1.3%	0.104%
2/13/2025	CenterBook Partners LP	2,438	$0.37M	0.0%	N/A	0.004%
2/13/2025	Raymond James Financial Inc.	112,771	$16.91M	0.0%	N/A	0.205%
2/13/2025	Renaissance Technologies LLC	49,600	$7.44M	0.0%	+30.6%	0.090%
2/13/2025	FIL Ltd	7,089	$1.06M	0.0%	N/A	0.013%
2/13/2025	Legal & General Group Plc	186,708	$28M	0.0%	+0.1%	0.339%
2/13/2025	Invesco Ltd.	1,458,635	$218.71M	0.0%	+4.9%	2.645%
2/13/2025	Bank of Montreal Can	9,058	$1.36M	0.0%	-0.8%	0.016%
2/13/2025	Cerity Partners LLC	1,532	$0.23M	0.0%	-35.9%	0.003%
2/13/2025	FMR LLC	6,111,756	$916.40M	0.1%	-7.2%	11.084%
2/13/2025	Federated Hermes Inc.	28,224	$4.23M	0.0%	+1.8%	0.051%
2/13/2025	Atika Capital Management LLC	239,500	$35.91M	3.8%	-0.6%	0.434%
2/13/2025	Quadrant Capital Group LLC	2,300	$0.35M	0.0%	+3.3%	0.004%
2/13/2025	Russell Investments Group Ltd.	13,965	$2.09M	0.0%	+15.4%	0.025%

Data available starting January 2016

See Full Table

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: $90.15

$88.03

$91.43

50 Day Range

MA: $109.20

$81.84

$161.30

52 Week Range

Now: $90.15

$77.91

$163.71

Volume

662,537 shs

Average Volume

638,778 shs

Market Capitalization

$5.10 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.88

Who are the company insiders with the largest holdings of Glaukos?: Glaukos' top insider investors include:
Thomas William Burns (CEO)
Joseph E Gilliam (COO)
Tomas Navratil (Insider)
Alex R Thurman (CFO)
Marc Stapley (Director)
Mark J Foley (Director)
Gilbert H Kliman (Director)
Aimee S Weisner (Director)
Learn More about top insider investors at Glaukos.
Who are the major institutional investors of Glaukos?: Glaukos' top institutional investors include:
Rhumbline Advisers — 0.25%
GAMMA Investing LLC — 0.24%
Harbor Capital Advisors Inc. — 0.07%
Yousif Capital Management LLC — 0.04%
Handelsbanken Fonder AB — 0.03%
Exchange Traded Concepts LLC — 0.01%
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:
Trust Point Inc.
Caldwell Sutter Capital Inc.
GAMMA Investing LLC
Yousif Capital Management LLC
Rhumbline Advisers
During the previous year, company insiders that have sold Glaukos company stock include:
Thomas William Burns (CEO)
Joseph E Gilliam (COO)
Tomas Navratil (Insider)
Alex R Thurman (CFO)
Marc Stapley (Director)
Mark J Foley (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:
GAMMA Investing LLC
Harbor Capital Advisors Inc.
Handelsbanken Fonder AB
Exchange Traded Concepts LLC
Elevation Point Wealth Partners LLC
SG Americas Securities LLC
Versant Capital Management Inc
Whipplewood Advisors LLC