Citigroup
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Citigroup’s Glaukos GKOS Stock Holding History

Citigroup’s Portfolio GKOS Stock Details GKOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2022
Q4 		– Sell
-120,000
Closed -$6.39M – 5835
2022
Q3 		$6.39M Buy
+120,000
New +$6.19M ﹤0.01% 1406
2022
Q2 		– Sell
-80,000
Closed -$4.63M – 6382
2022
Q1 		$4.63M Buy
+80,000
New +$4.23M ﹤0.01% 1718

Other funds holding GKOS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $41.5B AUM 42.97% 1-Year Est. Return

Citigroup's GKOS Position: Q1 2026 in Review

Citigroup increased its Glaukos (GKOS) stake by 38% in Q1 2026, buying an estimated $1.9M and bringing the position to 61,503 shares worth $6.62M. The position accounts for ﹤0.01% of the portfolio, ranked #1751.

Citigroup first reported a position in GKOS in Q3 2015 and has held it in 43 quarters since. The position peaked at $12.6M in Q2 2023. 336 funds tracked by Wall St. Rank hold GKOS as of Q1 2026.

  • Citigroup held 61,503 shares of Glaukos worth $6.62M as of Q1 2026.
  • Citigroup bought 16,880 Glaukos shares in Q1 2026, an estimated $1.9M.
  • Glaukos made up ﹤0.01% of Citigroup's portfolio in Q1 2026, its #1751 holding.
  • Citigroup first reported a position in Glaukos in Q3 2015 and has held it in 43 quarters since.
  • Citigroup's Glaukos position peaked at $12.6M in Q2 2023.
  • 336 funds tracked by Wall St. Rank held Glaukos as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.