GLAUKOS CORP

Ticker: GKOS CUSIP: 377322102 Class: EQTY

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 2,194 Value ($000) $248 Avg Close $95.54 Range $73.16 - $118.17
Q3 2025
Shares 1,770 Value ($000) $144 Avg Close $91.83 Range $79.02 - $106.82
Q2 2025
Shares 5,804 Value ($000) $599 Avg Close $93.83 Range $77.10 - $104.58
Q1 2025
Shares 1,242 Value ($000) $122 Avg Close $133.38 Range $91.78 - $163.71
Q4 2024
Shares 2,397 Value ($000) $359 Avg Close $137.76 Range $124.60 - $153.50
Q3 2024
Shares 2,695 Value ($000) $351 Avg Close $124.44 Range $107.22 - $136.60
Q2 2024
Shares 9,094 Value ($000) $1,076 Avg Close $106.17 Range $88.16 - $119.89
Q1 2024
Shares 1,849 Value ($000) $174 Avg Close $89.35 Range $74.75 - $97.24
Q4 2023
Shares 9,648 Value ($000) $767 Avg Close $68.19 Range $59.22 - $86.53
Q3 2023
Shares 591 Value ($000) $44 Avg Close $74.68 Range $68.25 - $80.28
Q2 2023
Shares 1,183 Value ($000) $84 Avg Close $57.41 Range $45.38 - $71.86
Q1 2023
Shares 1,238 Value ($000) $0 Avg Close $48.54 Range $42.48 - $53.32
Q4 2022
Shares 346 Value ($000) $0 Avg Close $49.32 Range $40.45 - $58.25
Q3 2022
Shares 5,730 Value ($000) $305 Avg Close $51.60 Range $45.11 - $60.92
Q2 2022
Shares 1,497 Value ($000) $68 Avg Close $47.46 Range $33.33 - $64.49
Q1 2022
Shares 442 Value ($000) $26 Avg Close $52.91 Range $43.09 - $59.68
Q4 2021
Shares 3,648 Value ($000) $162 Avg Close $46.16 Range $39.35 - $58.29
Q3 2021
Shares 20,589 Value ($000) $992 Avg Close $55.46 Range $46.32 - $86.35
Q2 2021
Shares 914 Value ($000) $77 Avg Close $82.12 Range $71.47 - $98.28
Q1 2021
Shares 6,363 Value ($000) $535 Avg Close $87.94 Range $69.89 - $99.00
Q4 2020
Shares 3,191 Value ($000) $240 Avg Close $63.20 Range $48.68 - $76.20
Q3 2020
Shares 29,360 Value ($000) $1,454 Avg Close $43.94 Range $35.65 - $52.03
Q2 2020
Shares 8,167 Value ($000) $314 Avg Close $37.23 Range $27.58 - $47.82
Q1 2020
Shares 2,316 Value ($000) $71 Avg Close $51.30 Range $23.31 - $70.96
Q4 2019
Shares 2 Value ($000) $0 Avg Close $60.84 Range $53.53 - $66.70
Q3 2019
Shares 419 Value ($000) $26 Avg Close $70.43 Range $57.53 - $84.65
Q2 2019
Shares 840 Value ($000) $63 Avg Close $71.75 Range $63.00 - $80.32
Q1 2019
Shares 2,282 Value ($000) $179 Avg Close $66.77 Range $50.60 - $83.14
Q4 2018
Shares 811 Value ($000) $46 Avg Close $60.12 Range $51.50 - $69.18
Q4 2017
Shares 1,460 Value ($000) $37 Avg Close $29.76 Range $23.07 - $36.20
Q3 2017
Shares 2,743 Value ($000) $91 Avg Close $37.97 Range $30.22 - $43.49
Q1 2017
Shares 50 Value ($000) $3 Avg Close $43.59 Range $33.18 - $52.49
Q4 2016
Shares 569 Value ($000) $20 Avg Close $34.23 Range $28.72 - $39.02
Q2 2016
Shares 388 Value ($000) $11 Avg Close $23.15 Range $16.26 - $30.01
Q1 2016
Shares 1,803 Value ($000) $30 Avg Close $17.34 Range $14.25 - $25.97
Q4 2015
Shares 510 Value ($000) $13 Avg Close $22.95 Range $18.53 - $27.64
Q3 2015
Shares 1,305 Value ($000) $32 Avg Close $30.09 Range $21.59 - $33.92
Q2 2015
Shares 1,250 Value ($000) $36 Avg Close $29.05 Range $27.39 - $31.95