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 | $156M | Buy |
1,446,926
+1,419,970
| +5,268% | +$160M | 0.03% | 566 |
|
|
2025
Q4 | $3.04M | Sell |
26,956
-28,984
| -52% | -$2.77M | ﹤0.01% | 5123 |
|
|
2025
Q3 | $4.56M | Sell |
55,940
-264,572
| -83% | -$24.3M | ﹤0.01% | 4529 |
|
|
2025
Q2 | $33.1M | Sell |
320,512
-99,984
| -24% | -$9.38M | 0.01% | 1580 |
|
|
2025
Q1 | $41.4M | Sell |
420,496
-772,243
| -65% | -$103M | 0.01% | 1303 |
|
|
2024
Q4 | $179M | Buy |
1,192,739
+833,292
| +232% | +$115M | 0.03% | 449 |
|
|
2024
Q3 | $46.8M | Sell |
359,447
-169,286
| -32% | -$21.1M | 0.01% | 1282 |
|
|
2024
Q2 | $62.6M | Buy |
528,733
+492,785
| +1,371% | +$52.3M | 0.01% | 977 |
|
|
2024
Q1 | $3.39M | Sell |
35,948
-83,013
| -70% | -$7.42M | ﹤0.01% | 4579 |
|
|
2023
Q4 | $9.46M | Sell |
118,961
-246,679
| -67% | -$16.8M | ﹤0.01% | 2924 |
|
|
2023
Q3 | $27.5M | Sell |
365,640
-68,821
| -16% | -$5.14M | 0.01% | 1574 |
|
|
2023
Q2 | $30.9M | Sell |
434,461
-323,863
| -43% | -$18.6M | 0.01% | 1444 |
|
|
2023
Q1 | $38M | Buy |
758,324
+57,141
| +8% | +$2.77M | 0.01% | 1320 |
|
|
2022
Q4 | $30.6M | Buy |
701,183
+33,001
| +5% | +$1.63M | 0.01% | 1536 |
|
|
2022
Q3 | $35.6M | Buy |
668,182
+660,498
| +8,596% | +$34.1M | 0.01% | 1332 |
|
|
2022
Q2 | $349K | Sell |
7,684
-47,361
| -86% | -$2.25M | ﹤0.01% | 9470 |
|
|
2022
Q1 | $3.18M | Sell |
55,045
-11,322
| -17% | -$599K | ﹤0.01% | 5042 |
|
|
2021
Q4 | $2.95M | Sell |
66,367
-227,022
| -77% | -$10.5M | ﹤0.01% | 5370 |
|
|
2021
Q3 | $14.1M | Buy |
293,389
+238,534
| +435% | +$13.2M | ﹤0.01% | 2508 |
|
|
2021
Q2 | $4.65M | Sell |
54,855
-144,748
| -73% | -$11.9M | ﹤0.01% | 4604 |
|
|
2021
Q1 | $16.8M | Buy |
199,603
+131,182
| +192% | +$11.5M | ﹤0.01% | 2194 |
|
|
2020
Q4 | $5.15M | Sell |
68,421
-98,899
| -59% | -$6.25M | ﹤0.01% | 3628 |
|
|
2020
Q3 | $8.29M | Sell |
167,320
-488,595
| -74% | -$21.5M | ﹤0.01% | 2513 |
|
|
2020
Q2 | $25.2M | Buy |
655,915
+338,741
| +107% | +$12.6M | 0.01% | 1298 |
|
|
2020
Q1 | $9.79M | Buy |
317,174
+219,561
| +225% | +$11.3M | ﹤0.01% | 1878 |
|
|
2019
Q4 | $5.32M | Sell |
97,613
-323,474
| -77% | -$19.7M | ﹤0.01% | 3004 |
|
|
2019
Q3 | $26.3M | Buy |
421,087
+301,843
| +253% | +$21.3M | 0.01% | 1240 |
|
|
2019
Q2 | $8.99M | Buy |
119,244
+108,939
| +1,057% | +$7.82M | ﹤0.01% | 2309 |
|
|
2019
Q1 | $808K | Sell |
10,305
-16,929
| -62% | -$1.13M | ﹤0.01% | 5978 |
|
|
2018
Q4 | $1.53M | Buy |
27,234
+8,466
| +45% | +$509K | ﹤0.01% | 4593 |
|
|
2018
Q3 | $1.22M | Buy |
18,768
+9,686
| +107% | +$475K | ﹤0.01% | 5205 |
|
|
2018
Q2 | $370K | Buy |
+9,082
| New | +$323K | ﹤0.01% | 6865 |
|
|
2017
Q4 | – | Sell |
-16,768
| Closed | -$553K | – | 8145 |
|
|
2017
Q3 | $553K | Sell |
16,768
-2,548
| -13% | -$96.7K | ﹤0.01% | 5179 |
|
|
2017
Q2 | $801K | Sell |
19,316
-64,068
| -77% | -$2.76M | ﹤0.01% | 4420 |
|
|
2017
Q1 | $4.28M | Sell |
83,384
-131,445
| -61% | -$5.73M | ﹤0.01% | 2198 |
|
|
2016
Q4 | $7.37M | Sell |
214,829
-99,663
| -32% | -$3.41M | 0.01% | 1621 |
|
|
2016
Q3 | $11.9M | Buy |
314,492
+176,683
| +128% | +$5.85M | 0.01% | 1223 |
|
|
2016
Q2 | $4.02M | Buy |
137,809
+119,830
| +666% | +$2.77M | ﹤0.01% | 2015 |
|
|
2016
Q1 | $303K | Buy |
17,979
+9,228
| +105% | +$160K | ﹤0.01% | 5082 |
|
|
2015
Q4 | $216K | Sell |
8,751
-1,771
| -17% | -$40.6K | ﹤0.01% | 5705 |
|
|
2015
Q3 | $255K | Sell |
10,522
-38,353
| -78% | -$1.15M | ﹤0.01% | 5798 |
|
|
2015
Q2 | $1.42M | Buy |
+48,875
| New | +$1.42M | ﹤0.01% | 3500 |
|
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.