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Who owns Glaukos (GKOS) stock

353 funds reported Glaukos (GKOS) shares in their latest 13F filings, worth $9.4B in all. The largest holder is BlackRock ($1.3B). Last quarter 187 funds added to their stakes and 130 cut them.

Largest holders of GKOS (13F)Largest holders of GKOS (13F)BlackRock$1.3BVanguard Group$680MJupiter Topco LLC$680MJanus Henderson Group$576MVanguard Portfolio Management LLC$464MPrimecap Management$425MVanguard Capital Management LLC$357MState Street$324MMillennium Management LLC$221MHolocene Advisors, LP$212M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock9,540,056$1.3Bincrease2026-06-30
Vanguard Group6,020,492$680Mdecrease2025-12-31
Jupiter Topco LLC4,862,894$680Mbase2026-06-30
Janus Henderson Group5,348,395$576Mincrease2026-03-31
Vanguard Portfolio Management LLC3,321,839$464Mincrease2026-06-30
Primecap Management3,040,705$425Mdecrease2026-06-30
Vanguard Capital Management LLC2,551,132$357Mincrease2026-06-30
State Street2,315,568$324Mincrease2026-06-30
Millennium Management LLC1,581,016$221Mincrease2026-06-30
Holocene Advisors, LP1,514,931$212Mincrease2026-06-30
Geode Capital Management, LLC1,463,448$205Mincrease2026-06-30
Citadel Advisors LLC1,390,017$194Mdecrease2026-06-30
Ameriprise Financial1,315,057$184Mdecrease2026-06-30
Capital World Investors1,015,943$142Mincrease2026-06-30
Alliancebernstein L.P.1,254,703$135Mdecrease2026-06-30

Glaukos' latest quarter

Glaukos, Q3 2026: revenue $211M (+58% year over year), operating margin 0.4%, net earnings $2.0M, operating cash flow $38.6M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most GKOS stock?

By the latest 13F filings: BlackRock ($1.3B); Vanguard Group ($680M); Jupiter Topco LLC ($680M); Janus Henderson Group ($576M); Vanguard Portfolio Management LLC ($464M).

What is the short interest in GKOS?

4,343,054 shares were sold short at the 2026-10-15 settlement, 12.79% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.