Perceptive Advisors’s Glaukos GKOS Stock Holding History

Perceptive Advisors’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	-140,000	Closed	-$15.8M	–	110
2025 Q4	$15.8M	Buy	+140,000	New	+$13.4M	0.28%	71
2019 Q1	–	Sell	-7,466	Closed	-$417K	–	113
2018 Q4	$417K	Buy	+7,466	New	+$449K	0.02%	92
2017 Q1	–	Sell	-300	Closed	-$10K	–	178
2016 Q4	$10K	Sell	300 -5,000	-94%	-$171K	﹤0.01%	164
2016 Q3	$200K	Buy	5,300 +5,000	+1,667%	+$165K	0.01%	162
2016 Q2	$9K	Buy	+300	New	+$6.94K	﹤0.01%	167

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 $3.37T AUM 44.26% 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

Perceptive Advisors's GKOS Position: Q1 2026 in Review

Perceptive Advisors sold out of Glaukos (GKOS) in Q1 2026, closing a stake of 140,000 shares — an estimated $15.8M sold.

Perceptive Advisors first reported a position in GKOS in Q2 2016 and held it in 5 quarters. The position peaked at $15.8M in Q4 2025. 336 funds tracked by Wall St. Rank hold GKOS as of Q1 2026.

Perceptive Advisors reported no remaining Glaukos position as of Q1 2026 after selling out during the quarter.
Perceptive Advisors sold 140,000 Glaukos shares in Q1 2026, an estimated $15.8M.
Perceptive Advisors first reported a position in Glaukos in Q2 2016 and held it in 5 quarters.
Perceptive Advisors's Glaukos position peaked at $15.8M in Q4 2025.
336 funds tracked by Wall St. Rank held Glaukos as of Q1 2026.

Based on Perceptive Advisors's 13F filing for Q1 2026, filed 15 May 2026.