0000834237-20-008639 SC 13G/A 1 20200210 20200210 ATLANTIC POWER CORP 0001419242 4900 550886410 A1 1231 SC 13G/A 34 005-87139 20589392 3 ALLIED DRIVE SUITE 155 DEDHAM MA 02026 617-977-2400 3 ALLIED DRIVE SUITE 155 DEDHAM MA 02026 BlackRock Inc. 0001364742 6211 320174431 DE 1231 SC 13G/A 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300 55 EAST 52ND STREET NEW YORK NY 10055 BlackRock, Inc. 20060929 New BlackRock, Inc. 20060601 SC 13G/A 1 ca04878q8636_020720.txt