Tower Research Capital (TRC)’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 | $431K | Buy |
4,003
+1,809
| +82% | +$204K | 0.01% | 1019 |
|
|
2025
Q4 | $248K | Buy |
2,194
+424
| +24% | +$40.5K | 0.01% | 1273 |
|
|
2025
Q3 | $144K | Sell |
1,770
-4,034
| -70% | -$370K | ﹤0.01% | 1726 |
|
|
2025
Q2 | $599K | Buy |
5,804
+4,562
| +367% | +$428K | 0.02% | 841 |
|
|
2025
Q1 | $122K | Sell |
1,242
-1,155
| -48% | -$154K | ﹤0.01% | 1662 |
|
|
2024
Q4 | $359K | Sell |
2,397
-298
| -11% | -$41.1K | 0.01% | 1280 |
|
|
2024
Q3 | $351K | Sell |
2,695
-6,399
| -70% | -$796K | 0.01% | 1119 |
|
|
2024
Q2 | $1.08M | Buy |
9,094
+7,245
| +392% | +$769K | 0.02% | 726 |
|
|
2024
Q1 | $174K | Sell |
1,849
-7,799
| -81% | -$697K | ﹤0.01% | 1503 |
|
|
2023
Q4 | $767K | Buy |
9,648
+9,057
| +1,532% | +$618K | 0.01% | 1040 |
|
|
2023
Q3 | $44.5K | Sell |
591
-592
| -50% | -$44.2K | ﹤0.01% | 2647 |
|
|
2023
Q2 | $84.2K | Sell |
1,183
-55
| -4% | -$3.16K | ﹤0.01% | 2158 |
|
|
2023
Q1 | $62K | Buy |
1,238
+892
| +258% | +$43.3K | ﹤0.01% | 2310 |
|
|
2022
Q4 | $15K | Sell |
346
-5,384
| -94% | -$266K | ﹤0.01% | 3415 |
|
|
2022
Q3 | $305K | Buy |
5,730
+4,233
| +283% | +$218K | 0.01% | 1536 |
|
|
2022
Q2 | $68K | Buy |
1,497
+1,055
| +239% | +$50.1K | ﹤0.01% | 2604 |
|
|
2022
Q1 | $26K | Sell |
442
-3,206
| -88% | -$170K | ﹤0.01% | 3281 |
|
|
2021
Q4 | $162K | Sell |
3,648
-16,941
| -82% | -$782K | ﹤0.01% | 1919 |
|
|
2021
Q3 | $992K | Buy |
20,589
+19,675
| +2,153% | +$1.09M | 0.03% | 537 |
|
|
2021
Q2 | $77K | Sell |
914
-5,449
| -86% | -$447K | ﹤0.01% | 2638 |
|
|
2021
Q1 | $535K | Buy |
6,363
+3,172
| +99% | +$279K | 0.01% | 1186 |
|
|
2020
Q4 | $240K | Sell |
3,191
-26,169
| -89% | -$1.65M | 0.01% | 1579 |
|
|
2020
Q3 | $1.45M | Buy |
29,360
+21,193
| +259% | +$931K | 0.02% | 636 |
|
|
2020
Q2 | $314K | Buy |
8,167
+5,851
| +253% | +$218K | 0.01% | 1404 |
|
|
2020
Q1 | $71K | Buy |
2,316
+2,314
| +115,700% | +$119K | ﹤0.01% | 1124 |
|
|
2019
Q4 | $0 | Sell |
2
-417
| -100% | -$25.4K | ﹤0.01% | 3822 |
|
|
2019
Q3 | $26K | Sell |
419
-421
| -50% | -$29.7K | ﹤0.01% | 2292 |
|
|
2019
Q2 | $63K | Sell |
840
-1,442
| -63% | -$103K | ﹤0.01% | 1456 |
|
|
2019
Q1 | $179K | Buy |
2,282
+1,471
| +181% | +$98.2K | 0.01% | 1167 |
|
|
2018
Q4 | $46K | Buy |
+811
| New | +$48.8K | ﹤0.01% | 1341 |
|
|
2018
Q1 | – | Sell |
-1,460
| Closed | -$37K | – | 3468 |
|
|
2017
Q4 | $37K | Sell |
1,460
-1,283
| -47% | -$38.2K | ﹤0.01% | 1557 |
|
|
2017
Q3 | $91K | Buy |
+2,743
| New | +$104K | 0.01% | 1447 |
|
|
2017
Q2 | – | Sell |
-50
| Closed | -$2.15K | – | 2984 |
|
|
2017
Q1 | $3K | Sell |
50
-519
| -91% | -$22.6K | ﹤0.01% | 2464 |
|
|
2016
Q4 | $20K | Buy |
+569
| New | +$19.5K | ﹤0.01% | 2136 |
|
|
2016
Q3 | – | Sell |
-388
| Closed | -$11K | – | 3924 |
|
|
2016
Q2 | $11K | Sell |
388
-1,415
| -78% | -$32.8K | ﹤0.01% | 2722 |
|
|
2016
Q1 | $30K | Buy |
1,803
+1,293
| +254% | +$22.4K | ﹤0.01% | 1063 |
|
|
2015
Q4 | $13K | Sell |
510
-795
| -61% | -$18.2K | ﹤0.01% | 1784 |
|
|
2015
Q3 | $32K | Buy |
1,305
+55
| +4% | +$1.66K | ﹤0.01% | 1338 |
|
|
2015
Q2 | $36K | Buy |
+1,250
| New | +$36.3K | ﹤0.01% | 1618 |
|
Other funds holding GKOS
VPM
VCM
Tower Research Capital (TRC)'s GKOS Position: Q1 2026 in Review
Tower Research Capital (TRC) increased its Glaukos (GKOS) stake by 82% in Q1 2026, buying an estimated $204K and bringing the position to 4,003 shares worth $431K. The position accounts for 0.01% of the portfolio, ranked #1019.
Tower Research Capital (TRC) first reported a position in GKOS in Q2 2015 and has held it in 39 quarters since. The position peaked at $1.45M in Q3 2020. 336 funds tracked by Wall St. Rank hold GKOS as of Q1 2026.
- Tower Research Capital (TRC) held 4,003 shares of Glaukos worth $431K as of Q1 2026.
- Tower Research Capital (TRC) bought 1,809 Glaukos shares in Q1 2026, an estimated $204K.
- Glaukos made up 0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #1019 holding.
- Tower Research Capital (TRC) first reported a position in Glaukos in Q2 2015 and has held it in 39 quarters since.
- Tower Research Capital (TRC)'s Glaukos position peaked at $1.45M in Q3 2020.
- 336 funds tracked by Wall St. Rank held Glaukos as of Q1 2026.
Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.