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. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC and Sequoia Financial Advisors.

Related GKOS Institutional Insights

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy61,000118,892$12,799,913
Q1 2026Sequoia Financial AdvisorsBuy3042,077$223,610
Q3 2025Renaissance Technologies LLCBuy8,29257,892$4,721,093
Q4 2024Renaissance Technologies LLCBuy11,60849,600$7,437,024
Q4 2024Sequoia Financial AdvisorsSell-1171,773$265,844
Q3 2024Renaissance Technologies LLCSell-83,90037,992$4,949,598
Q3 2024Sequoia Financial AdvisorsSell-421,890$246,230
Q2 2024Renaissance Technologies LLCSell-36,100121,892$14,425,918
Q2 2024Sequoia Financial AdvisorsBuy1,9321,932$228,653
Q1 2024Renaissance Technologies LLCSell-7,700157,992$14,897
Q4 2023Renaissance Technologies LLCBuy122,200165,692$13,171
Q3 2023Renaissance Technologies LLCBuy3,70043,492$3,273
Q2 2023Renaissance Technologies LLCBuy12,60039,792$2,834
Q1 2023Renaissance Technologies LLCSell-9,57327,192$1,362
Q4 2022Renaissance Technologies LLCSell-66,43536,765$1,606
Q3 2022Renaissance Technologies LLCBuy28,700103,200$5,494
Q2 2022Renaissance Technologies LLCBuy23,40874,500$3,384
Q1 2022Renaissance Technologies LLCSell-111,40051,092$2,954
Q4 2021Renaissance Technologies LLCSell-224,500162,492$7,221
Q3 2021Renaissance Technologies LLCBuy186,900386,992$18,641
Q2 2021Renaissance Technologies LLCBuy184,200200,092$16,974
Q1 2021Renaissance Technologies LLCSell-174,40015,892$1,334
Q4 2019Renaissance Technologies LLCSell-73,808190,292$10,365
Q3 2019Renaissance Technologies LLCBuy89,700264,100$16,509
Q2 2019Renaissance Technologies LLCBuy86,405174,400$13,150
Q1 2019Renaissance Technologies LLCSell-54,00087,995$6,896
Q4 2018Renaissance Technologies LLCSell-429,405141,995$7,976
Q3 2018Renaissance Technologies LLCBuy65,500571,400$37,084
Q1 2018Renaissance Technologies LLCBuy26,800505,900$15,597
Q4 2017Renaissance Technologies LLCSell-24,500479,100$12,289

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.