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Rock Springs Capital Management’s Glaukos GKOS Stock Holding History

Rock Springs Capital Management’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
Q2 		$664K Buy
+4,750
New +$601K 0.03% 101
2017
Q3 		– Sell
-62,500
Closed -$2.59M – 149
2017
Q2 		$2.59M Hold
62,500
– – 0.13% 120
2017
Q1 		$3.21M Buy
+62,500
New +$2.72M 0.19% 108

Other funds holding GKOS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Holocene Advisors
Holocene Advisors New York $44.4B AUM 57.89% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Rock Springs Capital Management's GKOS Position: Q2 2026 in Review

Rock Springs Capital Management opened a new position in Glaukos (GKOS) in Q2 2026: 4,750 shares worth $664K. The stake represents 0.03% of the portfolio and ranks #101 among its holdings. This is a return to the name: Rock Springs Capital Management previously reported a position in GKOS as recently as Q2 2017.

Rock Springs Capital Management first reported a position in GKOS in Q1 2017 and has held it in 3 quarters since. The position peaked at $3.21M in Q1 2017. 366 funds tracked by Wall St. Rank hold GKOS as of Q2 2026.

  • Rock Springs Capital Management held 4,750 shares of Glaukos worth $664K as of Q2 2026.
  • Glaukos was a new Rock Springs Capital Management position in Q2 2026.
  • Glaukos made up 0.03% of Rock Springs Capital Management's portfolio in Q2 2026, its #101 holding.
  • Rock Springs Capital Management first reported a position in Glaukos in Q1 2017 and has held it in 3 quarters since.
  • Rock Springs Capital Management's Glaukos position peaked at $3.21M in Q1 2017.
  • 366 funds tracked by Wall St. Rank held Glaukos as of Q2 2026.

Based on Rock Springs Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.