As of 31 Dec 2025, 1 institutional investors reported holding 1 shares of ATLANTIC POWER CORP - COMMON STOCK-FO (AT).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 1 | $3 | $3.00 | 1 | |
| 2025 Q3 | 1 | $3 | $3.00 | 1 | |
| 2025 Q2 | 1 | $3 | $3.00 | 1 | |
| 2025 Q1 | 1 | $3 | $3.00 | 1 | |
| 2024 Q4 | 1 | $3 | $3.00 | 1 | |
| 2024 Q3 | 1 | $3 | $3.00 | 1 | |
| 2024 Q2 | 1 | $3 | $3.00 | 1 | |
| 2024 Q1 | 1 | $3 | $3.00 | 1 | |
| 2023 Q4 | 1 | $3 | $3.00 | 1 | |
| 2023 Q3 | 1 | $3 | $3.00 | 1 | |
| 2023 Q2 | 1 | $3 | $3.00 | 1 | |
| 2023 Q1 | 1 | $3 | $3.00 | 1 | |
| 2022 Q4 | 1 | $3 | +$3 | $3.00 | 1 |
| 2021 Q3 | 0 | $0 | -$3,274,000 | $3.00 | 0 |
| 2021 Q2 | 1,132,950 | $3,274,000 | -$128,250,232 | $2.89 | 1 |
| 2021 Q1 | 45,687,221 | $131,900,386 | +$19,966,220 | $2.89 | 110 |
| 2020 Q4 | 46,724,528 | $98,060,264 | -$5,825,639 | $2.10 | 98 |
| 2020 Q3 | 49,791,215 | $97,508,631 | -$2,239,231 | $1.96 | 99 |
| 2020 Q2 | 50,901,044 | $101,840,715 | -$32,618,654 | $2.00 | 100 |
| 2020 Q1 | 67,162,490 | $143,704,031 | -$3,623,992 | $2.14 | 102 |
| 2019 Q4 | 68,829,493 | $160,358,125 | +$2,132,766 | $2.33 | 113 |
| 2019 Q3 | 67,872,635 | $158,773,991 | +$1,363,568 | $2.34 | 111 |
| 2019 Q2 | 67,282,137 | $162,509,884 | +$4,626,849 | $2.42 | 112 |
| 2019 Q1 | 66,305,984 | $167,045,422 | +$9,159,676 | $2.52 | 114 |
| 2018 Q4 | 62,704,886 | $136,049,813 | +$11,943,731 | $2.17 | 104 |
| 2018 Q3 | 57,185,042 | $125,649,155 | -$5,784,596 | $2.20 | 106 |
| 2018 Q2 | 59,819,554 | $131,620,933 | +$735,274 | $2.20 | 114 |
| 2018 Q1 | 59,520,763 | $125,002,677 | +$4,092,997 | $2.10 | 113 |
| 2017 Q4 | 57,496,578 | $135,222,565 | +$6,942,380 | $2.35 | 112 |
| 2017 Q3 | 55,308,239 | $135,863,960 | +$5,414,864 | $2.45 | 112 |
| 2017 Q2 | 53,395,777 | $128,039,533 | +$934,903 | $2.40 | 111 |
| 2017 Q1 | 53,037,900 | $140,494,508 | +$18,869,793 | $2.65 | 113 |
| 2016 Q4 | 51,359,296 | $128,469,445 | -$3,912,649 | $2.50 | 114 |
| 2016 Q3 | 52,903,171 | $130,565,520 | -$1,477,696 | $2.47 | 112 |
| 2016 Q2 | 53,517,051 | $132,540,851 | -$191,198 | $2.48 | 108 |
| 2016 Q1 | 53,592,374 | $131,857,000 | -$188,716 | $2.46 | 110 |
| 2015 Q4 | 53,779,182 | $105,947,935 | -$3,514,944 | $1.97 | 107 |
| 2015 Q3 | 55,603,939 | $103,471,999 | +$833,492 | $1.86 | 109 |
| 2015 Q2 | 52,987,273 | $163,238,628 | +$16,776,008 | $3.08 | 107 |
| 2015 Q1 | 47,624,420 | $133,820,762 | +$11,737,409 | $2.81 | 103 |
| 2014 Q4 | 43,541,661 | $118,058,342 | +$19,711,096 | $2.71 | 102 |
| 2014 Q3 | 36,385,471 | $86,656,421 | -$989,988 | $2.38 | 103 |
| 2014 Q2 | 34,568,743 | $141,732,404 | +$10,840,575 | $4.10 | 109 |
| 2014 Q1 | 32,283,478 | $93,790,484 | -$16,090,648 | $2.90 | 106 |