Ken Griffin’s Glaukos GKOS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $646K | Sell |
6,000
-24,900
| -81% | -$2.8M | ﹤0.01% | 8670 |
|
|
2025
Q4 | $3.49M | Buy |
30,900
+3,100
| +11% | +$296K | ﹤0.01% | 4887 |
|
|
2025
Q3 | $2.27M | Sell |
27,800
-4,000
| -13% | -$367K | ﹤0.01% | 5827 |
|
|
2025
Q2 | $3.28M | Sell |
31,800
-1,700
| -5% | -$160K | ﹤0.01% | 4827 |
|
|
2025
Q1 | $3.3M | Buy |
33,500
+16,700
| +99% | +$2.23M | ﹤0.01% | 4595 |
|
|
2024
Q4 | $2.52M | Sell |
16,800
-3,100
| -16% | -$427K | ﹤0.01% | 5165 |
|
|
2024
Q3 | $2.59M | Buy |
19,900
+1,300
| +7% | +$162K | ﹤0.01% | 5037 |
|
|
2024
Q2 | $2.2M | Buy |
18,600
+8,300
| +81% | +$881K | ﹤0.01% | 5133 |
|
|
2024
Q1 | $971K | Sell |
10,300
-9,800
| -49% | -$876K | ﹤0.01% | 6974 |
|
|
2023
Q4 | $1.6M | Buy |
20,100
+8,400
| +72% | +$573K | ﹤0.01% | 5774 |
|
|
2023
Q3 | $880K | Buy |
11,700
+4,800
| +70% | +$358K | ﹤0.01% | 6841 |
|
|
2023
Q2 | $491K | Buy |
6,900
+700
| +11% | +$40.2K | ﹤0.01% | 7979 |
|
|
2023
Q1 | $311K | Buy |
6,200
+3,000
| +94% | +$146K | ﹤0.01% | 9308 |
|
|
2022
Q4 | $140K | Sell |
3,200
-12,000
| -79% | -$592K | ﹤0.01% | 10723 |
|
|
2022
Q3 | $809K | Buy |
15,200
+8,200
| +117% | +$423K | ﹤0.01% | 7450 |
|
|
2022
Q2 | $318K | Sell |
7,000
-18,300
| -72% | -$868K | ﹤0.01% | 9677 |
|
|
2022
Q1 | $1.46M | Buy |
25,300
+8,000
| +46% | +$423K | ﹤0.01% | 6788 |
|
|
2021
Q4 | $769K | Sell |
17,300
-2,900
| -14% | -$134K | ﹤0.01% | 8585 |
|
|
2021
Q3 | $973K | Buy |
20,200
+14,200
| +237% | +$787K | ﹤0.01% | 8223 |
|
|
2021
Q2 | $509K | Buy |
6,000
+900
| +18% | +$73.9K | ﹤0.01% | 10021 |
|
|
2021
Q1 | $428K | Sell |
5,100
-800
| -14% | -$70.4K | ﹤0.01% | 10030 |
|
|
2020
Q4 | $444K | Buy |
5,900
+1,000
| +20% | +$63.2K | ﹤0.01% | 8372 |
|
|
2020
Q3 | $243K | Sell |
4,900
-2,900
| -37% | -$127K | ﹤0.01% | 8489 |
|
|
2020
Q2 | $300K | Sell |
7,800
-4,200
| -35% | -$156K | ﹤0.01% | 7902 |
|
|
2020
Q1 | $370K | Buy |
12,000
+4,100
| +52% | +$210K | ﹤0.01% | 6950 |
|
|
2019
Q4 | $430K | Buy |
7,900
+1,400
| +22% | +$85.2K | ﹤0.01% | 7047 |
|
|
2019
Q3 | $406K | Buy |
6,500
+1,200
| +23% | +$84.5K | ﹤0.01% | 7105 |
|
|
2019
Q2 | $400K | Sell |
5,300
-7,400
| -58% | -$531K | ﹤0.01% | 7149 |
|
|
2019
Q1 | $995K | Buy |
12,700
+3,100
| +32% | +$207K | ﹤0.01% | 5597 |
|
|
2018
Q4 | $539K | Buy |
9,600
+4,000
| +71% | +$240K | ﹤0.01% | 6295 |
|
|
2018
Q3 | $363K | Buy |
+5,600
| New | +$275K | ﹤0.01% | 7257 |
|
|
2017
Q3 | – | Sell |
-5,600
| Closed | -$232K | – | 7694 |
|
|
2017
Q2 | $232K | Sell |
5,600
-600
| -10% | -$25.8K | ﹤0.01% | 6335 |
|
|
2017
Q1 | $318K | Buy |
+6,200
| New | +$270K | ﹤0.01% | 5802 |
|
Other funds holding GKOS
VPM
VCM
Ken Griffin's GKOS Position: Q1 2026 in Review
Ken Griffin increased its Glaukos (GKOS) stake by 5,268% in Q1 2026, buying an estimated $160M and bringing the position to 1,446,926 shares worth $156M. The position accounts for 0.03% of the portfolio, ranked #566.
Ken Griffin first reported a position in GKOS in Q2 2015 and has held it in 42 quarters since. The position peaked at $179M in Q4 2024. 336 funds tracked by Wall St. Rank hold GKOS as of Q1 2026.
- Ken Griffin held 1,446,926 shares of Glaukos worth $156M as of Q1 2026.
- Ken Griffin bought 1,419,970 Glaukos shares in Q1 2026, an estimated $160M.
- Glaukos made up 0.03% of Ken Griffin's portfolio in Q1 2026, its #566 holding.
- Ken Griffin first reported a position in Glaukos in Q2 2015 and has held it in 42 quarters since.
- Ken Griffin's Glaukos position peaked at $179M in Q4 2024.
- 336 funds tracked by Wall St. Rank held Glaukos as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.