CenterBook Partners’s Glaukos GKOS Stock Holding History

CenterBook Partners’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
2026 Q1	–	Sell	-13,257	Closed	-$1.5M	–	695
2025 Q4	$1.5M	Buy	+13,257	New	+$1.27M	0.07%	310
2025 Q1	–	Sell	-2,438	Closed	-$366K	–	525
2024 Q4	$366K	Buy	+2,438	New	+$336K	0.02%	440

Other funds holding GKOS

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

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

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

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

CenterBook Partners's GKOS Position: Q1 2026 in Review

CenterBook Partners sold out of Glaukos (GKOS) in Q1 2026, closing a stake of 13,257 shares — an estimated $1.5M sold.

CenterBook Partners first reported a position in GKOS in Q4 2024 and held it in 2 quarters. The position peaked at $1.5M in Q4 2025. 336 funds tracked by Wall St. Rank hold GKOS as of Q1 2026.

CenterBook Partners reported no remaining Glaukos position as of Q1 2026 after selling out during the quarter.
CenterBook Partners sold 13,257 Glaukos shares in Q1 2026, an estimated $1.5M.
CenterBook Partners first reported a position in Glaukos in Q4 2024 and held it in 2 quarters.
CenterBook Partners's Glaukos position peaked at $1.5M in Q4 2025.
336 funds tracked by Wall St. Rank held Glaukos as of Q1 2026.

Based on CenterBook Partners's 13F filing for Q1 2026, filed 5 May 2026.