GLAUKOS CORP (GKOS) Institutional Ownership Changes & 13F Activity

GLAUKOS CORP (GKOS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include California State Teachers Retirement System, Ameriprise Financial Inc, Citadel Advisors Llc, Sixth Street Partners Management Company, L.P., and Balyasny Asset Management L.P..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+33,255+125.0%59,862$8.37MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+3,6223,622$506.08KQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+367+20.5%2,153$300.90KQ2 2026Sep 04, 2026
Citadel Advisors LlcBuy+1,333,108+92.1%2,780,034$388.54MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+46,330+84.5%101,183$12.38MQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+8+57.1%22$3.07KQ2 2026Aug 28, 2026
Corient Private Wealth LlcBuy+114,202+200.6%171,142$23.92MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+9,022,439+13581.1%9,088,873$9.09MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+206,941+1965.1%217,472$30.39MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+3,7103,710$518.51KQ2 2026Aug 19, 2026
Archer Investment CorpBuy+1,594+100.0%3,188$445.55KQ2 2026Aug 19, 2026
Fulcrum Asset Management LlpBuy+9696$13.65KQ2 2026Aug 18, 2026
Jefferies Financial Group Inc.Buy+7,8567,856$1.10MQ2 2026Aug 17, 2026
Ameriprise Financial IncSell-1,906,491-59.2%1,315,057$183.79MQ2 2026Aug 14, 2026
Sixth Street Partners Management Company, L.P.Buy+752,642752,642$105.19MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+491,636491,636$68.71MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-477,937-34.8%897,021$125.37MQ2 2026Aug 14, 2026
Summit Partners Public Asset Management, LlcBuy+446,550446,550$62.41MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+407,320+34.7%1,581,016$220.96MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+343,207+102.0%679,632$94.99MQ2 2026Aug 14, 2026
Primecap Management Co/Ca/Sell-329,923-9.8%3,040,705$424.97MQ2 2026Aug 14, 2026
Lord, Abbett & Co. LlcBuy+300,252+249.8%420,466$58.76MQ2 2026Aug 14, 2026
Wellington Management Group LlpBuy+279,065+187.1%428,215$59.85MQ2 2026Aug 14, 2026
Anomaly Capital Management, LpBuy+275,995275,995$38.57MQ2 2026Aug 14, 2026
Longaeva Partners L.P.Buy+236,192236,192$33.01MQ2 2026Aug 14, 2026
Toronto Dominion BankBuy+232,026+642.3%268,152$37.48MQ2 2026Aug 14, 2026
Invesco Ltd.Sell-207,311-22.7%706,877$98.79MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-193,992-77.2%57,184$7.99MQ2 2026Aug 14, 2026
Braidwell LpSell-171,578-22.5%591,927$82.73MQ2 2026Aug 14, 2026
Driehaus Capital Management LlcBuy+162,659+33.3%650,571$90.92MQ2 2026Aug 14, 2026
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Frequently asked questions about GKOS activity

  • Which institutional owners are buying GKOS?

    Institutional owners buying GKOS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in GKOS activity?

    "Buy" means an investor increased their reported position in GKOS compared to the prior reporting period. This reflects growing exposure to GLAUKOS CORP (GKOS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in GKOS increasing?

    Institutional interest in GKOS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.