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Magnetar Financial’s Glaukos GKOS Stock Holding History

Magnetar Financial’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
2025
Q4 		– Sell
-8,209
Closed -$669K – 1038
2025
Q3 		$669K Buy
+8,209
New +$754K ﹤0.01% 536
2024
Q2 		– Sell
-24,798
Closed -$2.34M – 547
2024
Q1 		$2.34M Buy
+24,798
New +$2.22M 0.05% 197
2022
Q4 		– Sell
-3,994
Closed -$213K – 839
2022
Q3 		$213K Buy
+3,994
New +$206K ﹤0.01% 915
2020
Q1 		– Sell
-6,877
Closed -$375K – 539
2019
Q4 		$375K Buy
+6,877
New +$418K 0.01% 380

Other funds holding GKOS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Magnetar Financial's GKOS Position: Q4 2025 in Review

Magnetar Financial sold out of Glaukos (GKOS) in Q4 2025, closing a stake of 8,209 shares — an estimated $669K sold.

Magnetar Financial first reported a position in GKOS in Q4 2019 and held it in 4 quarters. The position peaked at $2.34M in Q1 2024. 333 funds tracked by Wall St. Rank hold GKOS as of Q4 2025.

  • Magnetar Financial reported no remaining Glaukos position as of Q4 2025 after selling out during the quarter.
  • Magnetar Financial sold 8,209 Glaukos shares in Q4 2025, an estimated $669K.
  • Magnetar Financial first reported a position in Glaukos in Q4 2019 and held it in 4 quarters.
  • Magnetar Financial's Glaukos position peaked at $2.34M in Q1 2024.
  • 333 funds tracked by Wall St. Rank held Glaukos as of Q4 2025.

Based on Magnetar Financial's 13F filing for Q4 2025, filed 17 Feb 2026.