GLAUKOS CORP

Ticker: GKOS CUSIP: 377322102 Class: EQTY

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025
Shares 3,701 Value ($000) $418 Avg Close $95.54 Range $73.16 - $118.17
Q3 2025
Shares 8,100 Value ($000) $661 Avg Close $91.83 Range $79.02 - $106.82
Q2 2025
Shares 8,001 Value ($000) $826 Avg Close $93.83 Range $77.10 - $104.58
Q1 2025
Shares 7,228 Value ($000) $711 Avg Close $133.38 Range $91.78 - $163.71
Q4 2024
Shares 5,209 Value ($000) $781 Avg Close $137.76 Range $124.60 - $153.50
Q3 2024
Shares 5,270 Value ($000) $687 Avg Close $124.44 Range $107.22 - $136.60
Q2 2024
Shares 5,507 Value ($000) $652 Avg Close $106.17 Range $88.16 - $119.89
Q1 2024
Shares 7,990 Value ($000) $753 Avg Close $89.35 Range $74.75 - $97.24
Q4 2023
Shares 8,131 Value ($000) $646 Avg Close $68.19 Range $59.22 - $86.53
Q3 2023
Shares 8,355 Value ($000) $629 Avg Close $74.68 Range $68.25 - $80.28
Q2 2023
Shares 9,119 Value ($000) $649 Avg Close $57.41 Range $45.38 - $71.86
Q1 2023
Shares 8,708 Value ($000) $436 Avg Close $48.54 Range $42.48 - $53.32
Q4 2022
Shares 6,910 Value ($000) $302 Avg Close $49.32 Range $40.45 - $58.25
Q3 2022
Shares 7,182 Value ($000) $382 Avg Close $51.60 Range $45.11 - $60.92
Q2 2022
Shares 6,100 Value ($000) $277 Avg Close $47.46 Range $33.33 - $64.49
Q1 2022
Shares 7,115 Value ($000) $411 Avg Close $52.91 Range $43.09 - $59.68
Q4 2021
Shares 6,312 Value ($000) $281 Avg Close $46.16 Range $39.35 - $58.29
Q3 2021
Shares 4,893 Value ($000) $236 Avg Close $55.46 Range $46.32 - $86.35
Q2 2021
Shares 5,078 Value ($000) $431 Avg Close $82.12 Range $71.47 - $98.28
Q1 2021
Shares 5,144 Value ($000) $432 Avg Close $87.94 Range $69.89 - $99.00
Q4 2020
Shares 4,955 Value ($000) $373 Avg Close $63.20 Range $48.68 - $76.20
Q3 2020
Shares 7,764 Value ($000) $384 Avg Close $43.94 Range $35.65 - $52.03
Q2 2020
Shares 8,143 Value ($000) $313 Avg Close $37.23 Range $27.58 - $47.82
Q1 2020
Shares 8,141 Value ($000) $251 Avg Close $51.30 Range $23.31 - $70.96
Q4 2019
Shares 4,768 Value ($000) $260 Avg Close $60.84 Range $53.53 - $66.70
Q3 2019
Shares 3,624 Value ($000) $227 Avg Close $70.43 Range $57.53 - $84.65