Glaukos (GKOS) Institutional Ownership

$112.26 +1.49 (+1.34%)

As of 02:01 PM Eastern

Current Institutional Ownership Percentage: 99.04%
Number of Institutional Buyers (last 12 months): 242
Total Institutional Inflows (last 12 months): $2.09B

Number of Institutional Sellers (last 12 months): 132
Total Institutional Outflows (last 12 months): $1.02B

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GKOS Institutional Buying and Selling by Quarter

Glaukos Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
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%
5/18/2026	Amundi	26,213	$2.82M	0.0%	+25.7%	0.045%
5/18/2026	California State Teachers Retirement System	66,434	$7.15M	0.0%	+21.8%	0.113%
5/18/2026	Royal Bank of Canada	204,153	$21.98M	0.0%	+6.4%	0.348%
5/18/2026	Eversept Partners LP	60,214	$6.48M	0.3%	-59.2%	0.103%
5/18/2026	Exome Asset Management LLC	20,874	$2.25M	1.2%	-33.7%	0.036%
5/16/2026	The Manufacturers Life Insurance Company	26,607	$2.87M	0.0%	-0.6%	0.045%
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5/16/2026	Quantinno Capital Management LP	30,836	$3.32M	0.0%	+964.0%	0.053%
5/16/2026	Lazard Asset Management LLC	21,581	$2.32M	0.0%	+5.2%	0.037%
5/15/2026	Wealth Alliance LLC	2,297	$247K	0.0%	+4.5%	0.004%
5/14/2026	Renaissance Technologies LLC	118,892	$12.80M	0.0%	N/A	0.202%
5/14/2026	Gamco Investors INC. ET AL	3,264	$351K	0.0%	-11.8%	0.006%
5/14/2026	Inceptionr LLC	4,348	$468K	0.1%	N/A	0.007%
5/14/2026	Sei Investments Co.	161,680	$17.41M	0.0%	-11.1%	0.275%
5/14/2026	Lido Advisors LLC	14,818	$1.60M	0.0%	-1.6%	0.025%
5/13/2026	Cetera Investment Advisers	3,133	$337K	0.0%	-12.1%	0.005%
5/13/2026	First Trust Advisors LP	42,754	$4.60M	0.0%	+2,085.8%	0.073%
5/8/2026	PNC Financial Services Group Inc.	34,256	$3.69M	0.0%	+5.5%	0.058%
5/8/2026	Summit Global Investments	8,849	$953K	0.1%	+25.5%	0.015%
5/7/2026	WCM Investment Management LLC	93,427	$9.81M	0.0%	-4.0%	0.159%
5/7/2026	Dimensional Fund Advisors LP	199,084	$21.43M	0.0%	-3.1%	0.339%
5/7/2026	Parallel Advisors LLC	368	$40K	0.0%	+159.2%	0.001%
5/7/2026	Swiss National Bank	113,600	$12.23M	0.0%	+0.4%	0.193%
5/6/2026	Jennison Associates LLC	487,020	$52.43M	0.0%	N/A	0.829%
5/6/2026	California Public Employees Retirement System	68,654	$7.39M	0.0%	-5.1%	0.117%
5/6/2026	Zhang Financial LLC	23,586	$2.54M	0.1%	+2.7%	0.040%
5/6/2026	Assetmark Inc.	76,306	$8.22M	0.0%	+110,488.4%	0.130%
5/6/2026	Bessemer Group Inc.	3,573	$385K	0.0%	-62.2%	0.006%
5/6/2026	Allspring Global Investments Holdings LLC	393,831	$44.36M	0.1%	+10.9%	0.671%
5/5/2026	Bank of New York Mellon Corp	343,173	$36.95M	0.0%	-3.6%	0.584%
5/5/2026	Illinois Municipal Retirement Fund	34,395	$3.70M	0.0%	+13.3%	0.059%
5/5/2026	Sanctuary Advisors LLC	3,323	$358K	0.0%	+58.4%	0.006%
5/4/2026	Archer Investment Corp	1,594	$172K	0.0%	N/A	0.003%
5/4/2026	Principal Financial Group Inc.	280,737	$30.22M	0.0%	+2.2%	0.480%
5/4/2026	Teachers Retirement System of The State of Kentucky	14,301	$1.54M	0.0%	+1.8%	0.024%
5/1/2026	Fifth Third Bancorp	16,533	$1.78M	0.0%	+318.0%	0.028%
5/1/2026	Sequoia Financial Advisors LLC	2,077	$224K	0.0%	+15.6%	0.004%
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4/30/2026	Granite Investment Partners LLC	111,872	$12.04M	0.7%	-6.3%	0.191%
4/30/2026	Taylor Frigon Capital Management LLC	23,445	$2.52M	1.4%	-17.5%	0.040%
4/28/2026	Abel Hall LLC	2,185	$235K	0.1%	-23.0%	0.004%
4/28/2026	Stephens Inc. AR	3,371	$363K	0.0%	N/A	0.006%
4/28/2026	Praxis Investment Management Inc.	3,039	$327K	0.0%	-20.4%	0.005%
4/27/2026	New York State Teachers Retirement System	46,372	$4.99M	0.0%	-3.9%	0.079%
4/27/2026	Y Intercept Hong Kong Ltd	14,523	$1.56M	0.0%	-27.9%	0.025%
4/27/2026	Elevation Point Wealth Partners LLC	2,290	$247K	0.0%	N/A	0.004%
4/27/2026	Fideuram Intesa Sanpaolo Private Banking S.P.A.	9,357	$1.01M	0.0%	N/A	0.016%
4/25/2026	Keybank National Association OH	145,270	$15.64M	0.1%	+1.9%	0.248%
4/24/2026	Capricorn Fund Managers Ltd	2,800	$301K	0.0%	-95.3%	0.005%
4/23/2026	Inspire Investing LLC	5,751	$619K	0.1%	+5.5%	0.010%
4/22/2026	Pictet Asset Management Holding SA	8,567	$922K	0.0%	+4.3%	0.015%
4/21/2026	Louisiana State Employees Retirement System	25,500	$2.75M	0.0%	N/A	0.044%
4/20/2026	Assenagon Asset Management S.A.	10,531	$1.13M	0.0%	-94.2%	0.018%
4/18/2026	Riverbridge Partners LLC	433,228	$46.64M	1.1%	-19.0%	0.746%
4/16/2026	SG Americas Securities LLC	11,446	$1.23M	0.0%	-81.0%	0.020%
4/16/2026	Diversified Trust Co	8,866	$955K	0.0%	+22.3%	0.015%
3/20/2026	Hsbc Holdings PLC	1,849	$209K	0.0%	N/A	0.003%
3/13/2026	Fund Advisors of America Inc FL	1,940	$219K	0.2%	N/A	0.003%
3/9/2026	Corient Private Wealth LLC	30,978	$3.50M	0.0%	+999.3%	0.053%
2/25/2026	Sit Investment Associates Inc.	66,970	$7.56M	0.1%	-2.4%	0.117%
2/19/2026	Invesco Ltd.	780,267	$88.10M	0.0%	+28.5%	1.358%
2/19/2026	Corient Private Wealth LLC	30,978	$3.50M	0.0%	+999.3%	0.054%
2/18/2026	Summit Global Investments	7,052	$796K	0.0%	+151.3%	0.012%
2/18/2026	State of Tennessee Department of Treasury	23,344	$2.79M	0.0%	-7.9%	0.041%
2/18/2026	Mackenzie Financial Corp	15,404	$1.76M	0.0%	+331.8%	0.027%
2/18/2026	Empowered Funds LLC	1,926	$217K	0.0%	N/A	0.003%
2/18/2026	XTX Topco Ltd	2,728	$308K	0.0%	N/A	0.005%
2/18/2026	Wellington Management Group LLP	486,824	$54.97M	0.0%	-86.4%	0.848%
2/18/2026	SummitTX Capital L.P.	29,534	$3.34M	0.1%	+83.9%	0.051%
2/18/2026	Susquehanna Portfolio Strategies LLC	19,997	$2.26M	0.0%	-76.5%	0.035%
2/18/2026	Osterweis Capital Management Inc.	101,613	$11.47M	0.5%	-28.6%	0.177%
2/18/2026	Perceptive Advisors LLC	140,000	$15.81M	0.3%	N/A	0.244%
2/18/2026	Millennium Management LLC	1,609,699	$181.75M	0.1%	+75.3%	2.802%
2/18/2026	Inspire Investing LLC	5,450	$615K	0.1%	-17.1%	0.009%
2/18/2026	Janus Henderson Group PLC	3,018,787	$340.86M	0.2%	+183.4%	5.256%
2/18/2026	Gotham Asset Management LLC	2,666	$301K	0.0%	N/A	0.005%
2/18/2026	Eversept Partners LP	147,471	$16.65M	0.8%	N/A	0.257%
2/18/2026	Clough Capital Partners L P	20,368	$2.30M	0.2%	N/A	0.035%
2/18/2026	Balyasny Asset Management L.P.	87,171	$9.84M	0.0%	N/A	0.152%
2/17/2026	Guggenheim Capital LLC	2,060	$233K	0.0%	N/A	0.004%
2/17/2026	Brown Capital Management LLC	326,579	$36.87M	3.0%	-57.2%	0.569%
2/17/2026	AQR Capital Management LLC	15,572	$1.76M	0.0%	+50.9%	0.027%
2/17/2026	Braidwell LP	921,979	$104.10M	3.3%	+18.2%	1.605%
2/17/2026	Abel Hall LLC	2,839	$321K	0.1%	N/A	0.005%
2/17/2026	Cetera Investment Advisers	3,566	$403K	0.0%	+4.7%	0.006%
2/17/2026	EFG International AG	55,340	$6.25M	0.1%	N/A	0.096%
2/17/2026	Lazard Asset Management LLC	20,519	$2.32M	0.0%	N/A	0.036%
2/17/2026	Amundi	20,855	$2.36M	0.0%	-88.5%	0.036%
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2/17/2026	Price T Rowe Associates Inc. MD	122,169	$13.80M	0.0%	+4.5%	0.213%
2/17/2026	Osaic Holdings Inc.	4,141	$468K	0.0%	-16.6%	0.007%
2/17/2026	Integral Health Asset Management LLC	325,000	$36.70M	1.8%	+225.0%	0.566%
2/17/2026	Adage Capital Partners GP L.L.C.	250,000	$28.23M	0.0%	+774.7%	0.435%
2/17/2026	California State Teachers Retirement System	54,563	$6.16M	0.0%	+1.4%	0.095%
2/17/2026	Russell Investments Group Ltd.	27,627	$3.12M	0.0%	+29.3%	0.048%
2/17/2026	Maryland State Retirement & Pension System	8,422	$951K	0.0%	+2.1%	0.015%
2/17/2026	State of Wisconsin Investment Board	39,141	$4.42M	0.0%	-2.5%	0.068%
2/17/2026	Captrust Financial Advisors	2,117	$239K	0.0%	N/A	0.004%
2/17/2026	Artisan Partners Limited Partnership	702,818	$79.36M	0.1%	+139.3%	1.224%

GKOS Institutional Ownership - Frequently Asked Questions

During the previous two years, 367 institutional investors and hedge funds held shares of Glaukos. The most heavily invested institutionals were FMR LLC ($916.40M), Vanguard Group Inc. ($679.77M), Janus Henderson Group PLC ($575.84M), Primecap Management Co. CA ($381.29M), State Street Corp ($239.64M), Millennium Management LLC ($181.75M), and Ameriprise Financial Inc. ($154.97M).Learn more on Glaukos' institutional investors.

99.04% of Glaukos' stock is owned by institutional investors. Learn more on GKOS's institutional investor holdings.

Of the 329 institutional investors that purchased Glaukos' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Janus Henderson Group PLC ($4.28M), Primecap Management Co. CA ($2.56M), Wellington Management Group LLP ($2.10M), Norges Bank ($1.84M), Alliancebernstein L.P. ($1.70M), William Blair Investment Management LLC ($1.21M), and Goldman Sachs Group Inc. ($913.46K).

Institutional investors have bought a total of 20,009,925 shares in the last 24 months. This purchase volume represents approximately $2.09B in transactions.

Of the 132 institutional investors that sold Glaukos' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($3.09M), Brown Capital Management LLC ($866.01K), Invesco Ltd. ($844.67K), Holocene Advisors LP ($498.83K), Marshall Wace LLP ($431.37K), Clearbridge Investments LLC ($359.53K), and New York State Common Retirement Fund ($335.73K).

Institutional investors have sold a total of 9,978,307 shares in the last 24 months. This volume of shares sold represents approximately $1.02B in transactions.

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This page (NYSE:GKOS) was last updated on 6/3/2026 by MarketBeat.com Staff.

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Glaukos (GKOS) Institutional Ownership

GKOS Institutional Buying and Selling by Quarter

Glaukos Major Shareholders & Ownership History

GKOS Institutional Ownership - Frequently Asked Questions

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Glaukos (GKOS) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Glaukos (NYSE:GKOS)

GKOS Institutional Buying and Selling by Quarter

Glaukos Major Shareholders & Ownership History

GKOS Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of GKOS shares?

What percentage of Glaukos' stock is owned by institutional investors?

Which institutional investors have been buying Glaukos' stock?

How much institutional buying is happening at Glaukos?

Which of Glaukos' major shareholders have been selling company stock?

How much institutional selling is happening at Glaukos?

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