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 $6.73T AUM 46.02% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Holocene Advisors New York $44.4B AUM 57.89% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Citigroup's GKOS Position: Q2 2026 in Review

Citigroup increased its Glaukos (GKOS) stake by 28% in Q2 2026, buying an estimated $2.21M and bringing the position to 78,941 shares worth $11M. The position accounts for ﹤0.01% of the portfolio, ranked #1544.

Citigroup first reported a position in GKOS in Q3 2015 and has held it in 44 quarters since. The position peaked at $12.6M in Q2 2023. 367 funds tracked by Wall St. Rank hold GKOS as of Q2 2026.

Citigroup held 78,941 shares of Glaukos worth $11M as of Q2 2026.
Citigroup bought 17,438 Glaukos shares in Q2 2026, an estimated $2.21M.
Glaukos made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #1544 holding.
Citigroup first reported a position in Glaukos in Q3 2015 and has held it in 44 quarters since.
Citigroup's Glaukos position peaked at $12.6M in Q2 2023.
367 funds tracked by Wall St. Rank held Glaukos as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.