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
2021 Q3	–	Sell	-100,000	Closed	-$8.48M	–	5982
2021 Q2	$8.48M	Buy	+100,000	New	+$8.21M	0.01%	1531

Other funds holding GKOS

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

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.