CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q4 2025
Shares 116,870 Value ($000) $27,404 Avg Close $228.49 Range $201.34 - $248.07
Q3 2025
Shares 116,770 Value ($000) $27,116 Avg Close $236.75 Range $218.46 - $251.43
Q2 2025
Shares 117,300 Value ($000) $27,117 Avg Close $218.92 Range $178.29 - $235.43
Q1 2025
Shares 110,320 Value ($000) $21,744 Avg Close $218.84 Range $186.54 - $247.51
Q4 2024
Shares 102,430 Value ($000) $23,573 Avg Close $248.40 Range $220.10 - $267.11
Q3 2024
Shares 105,370 Value ($000) $25,469 Avg Close $235.10 Range $217.36 - $251.65
Q2 2024
Shares 103,245 Value ($000) $23,349 Avg Close $209.64 Range $189.32 - $231.15
Q1 2024
Shares 81,295 Value ($000) $16,365 Avg Close $179.73 Range $161.39 - $202.58
Q4 2023
Shares 57,055 Value ($000) $9,957 Avg Close $164.14 Range $132.92 - $179.49
Q3 2023
Shares 45,415 Value ($000) $7,601 Avg Close $168.59 Range $160.37 - $178.33
Q2 2023
Shares 45,105 Value ($000) $7,417 Avg Close $146.18 Range $129.70 - $164.80
Q1 2023
Shares 50,835 Value ($000) $7,247 Avg Close $130.22 Range $110.96 - $144.20
Q4 2022
Shares 48,335 Value ($000) $5,516 Avg Close $116.83 Range $109.07 - $125.41
Q3 2022
Shares 22,675 Value ($000) $2,494 Avg Close $107.08 Range $83.56 - $124.49
Q2 2022
Shares 11,890 Value ($000) $1,042 Avg Close $96.49 Range $81.56 - $115.00
Q1 2022
Shares 4,900 Value ($000) $547 Avg Close $98.73 Range $87.11 - $113.71
Q4 2021
Shares 2,900 Value ($000) $289 Avg Close $105.37 Range $90.25 - $118.89
Q3 2021
Shares 2,900 Value ($000) $301 Avg Close $98.39 Range $89.03 - $106.90
Q2 2021
Shares 3,600 Value ($000) $335 Avg Close $90.87 Range $83.56 - $96.47
Q1 2021
Shares 3,600 Value ($000) $303 Avg Close $84.13 Range $73.69 - $91.94
Q4 2020
Shares 4,000 Value ($000) $304 Avg Close $67.02 Range $52.22 - $77.16
Q1 2019
Shares 3,600 Value ($000) $258 Avg Close $61.79 Range $48.13 - $72.26