AT on NYSE

Atlantic Power Corporation

North American infrastructure company

Atlantic Power Corporation headquartered in Dedham, Massachusetts, is a power generation and infrastructure company with a portfolio of assets in the United States and Canada. The company is engaged in power generation through hydro, natural gas, biomass, and coal-fired power plants. The company was acquired by private equity firm I Squared Capital in 2021 and delisted from the New York and Toronto stock exchanges.³ Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

2004Founded¹

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TickerAT on NYSE¹
Industryelectricity supply company¹
HeadquartersBoston¹
Websitewww.atlanticpower.com
Listed onNew York Stock Exchange (AT), Toronto Stock Exchange¹
Incorporated inBritish Columbia, Canada⁵
Business address3 Allied Drive, Suite 155, Dedham, Ma 02026⁵
Filer categoryAccelerated filer, Smaller reporting company⁵
Legal formCompany (includes community contribution company and unlimited liability company)⁴
LEI2U3V7WI7HVCB625AQQ40⁴
StatusActive⁴
LEI statusLapsed (not renewed)⁴
Registered address1066 West Hastings Street, Suite 2600, V6E 3X1 Vancouver, Canada⁴
Registered withBC Registry Services, C0729547⁴

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Corporate structure

Atlantic Power Corporation sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Atlantic Power Corporation

RBC Global Asset Management Inc. Filed SC 13G/A on Atlantic Power Corporation, latest Feb 14, 2022

Atlantic Power Corporation Boston, Massachusetts, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Atlantic Power Corporation reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

Item	Latest	A year before	Change
Property and equipment, before depreciation	$924.7M⁶ Dec 31, 2020	$893.7M⁶ Dec 31, 2019	+3.5%
Accumulated depreciation	$432.9M⁶ Dec 31, 2020	$391.6M⁶ Dec 31, 2019	+10.5%
Property and equipment, net	$491.8M⁶ Dec 31, 2020	$502.1M⁶ Dec 31, 2019	−2.1%
Operating-lease assets (leased space)	$4.6M⁶ Dec 31, 2020	$6.3M⁶ Dec 31, 2019	−27.0%

Investments

Item	Latest	A year before	Change
Cash and cash equivalents	$38.8M⁶ Dec 31, 2020	$74.9M⁶ Dec 31, 2019	−48.2%
Stakes in other companies (equity method)	$85.0M⁶ Dec 31, 2020	$96.6M⁶ Dec 31, 2019	−12.0%

Intangibles and goodwill

Item	Latest	A year before	Change
Goodwill	$21.3M⁶ Dec 31, 2020	$21.3M⁶ Dec 31, 2019	0%
Finite-lived intangibles, gross	$352.1M⁶ Dec 31, 2020	$365.6M⁶ Dec 31, 2019	−3.7%
Accumulated amortization	$231.8M⁶ Dec 31, 2020	$221.3M⁶ Dec 31, 2019	+4.7%
Finite-lived intangibles, net	$120.3M⁶ Dec 31, 2020	$144.3M⁶ Dec 31, 2019	−16.6%

Inventory

Item	Latest	A year before	Change
Inventory, total	$18.3M⁶ Dec 31, 2020	$18.6M⁶ Dec 31, 2019	−1.6%

Leadership

Who has led Atlantic Power Corporation, and when. Pick a name to see everywhere that person has worked.

Chief executive

President

Barry Edward Welch2010–2013

Chief financial officer

20052010201520202025

Chief executive officerJames J. Moore Jr. Jan 28, 2015 to May 19, 2021⁷
Chief executive officerKenneth Michael Hartwick Sep 25, 2014 to Oct 2, 2014⁸
Chief executive officerBarry Edward Welch Jul 23, 2010 to Mar 21, 2014⁹
PresidentBarry Edward Welch Jul 23, 2010 to Feb 4, 2013⁹
Chief financial officerTerrence Ronan Oct 4, 2012 to May 19, 2021¹⁰
Chief financial officerPatrick Joseph Welch Jul 23, 2010 to Jun 2, 2011¹¹

Board members and other officers (16)

SVP, Asset ManagementPhilip Daniel Rorabaugh Nov 15, 2017 to Feb 28, 2019¹²
Chief Administrative OfficerJames Patrick D'Angelo Nov 16, 2017 to May 19, 2021¹³
EVP Commercial DevelopmentJoseph Cofelice Sep 28, 2015 to May 19, 2021¹⁴
C.F.O. & Corprorate SecretaryPatrick Joseph Welch Feb 2, 2011 to Feb 2, 2011¹⁵
Managing Director, Asset ManagPaul Howard Rapisarda Jul 23, 2010 to Oct 14, 2014¹⁶
Board memberDanielle S. Mottor Jan 24, 2019 to May 19, 2021¹⁷
Board memberKevin Howell Jan 5, 2015 to May 19, 2021¹⁸
Board memberJames J. Moore Jr. Jan 28, 2015 to May 19, 2021⁷
Board memberGilbert Samuel Palter Jun 25, 2015 to May 19, 2021¹⁹
Board memberTeresa Ressel Dec 4, 2014 to Apr 3, 2017²⁰
Board memberBarry Edward Welch Jul 23, 2010 to Mar 21, 2014⁹
Board memberIrving Russell Gerstein Jul 23, 2010 to Apr 2, 2019²¹
Board memberJohn Alexander McNeil Jul 23, 2010 to Apr 4, 2016²²
Board memberHolli Nichols Jul 27, 2010 to Apr 2, 2018²³
Board memberKenneth Michael Hartwick Jul 27, 2010 to Jan 4, 2016²⁴
Board memberR. Foster Duncan Aug 13, 2010 to May 19, 2021²⁵

Products and brands

electricity generation

Listed on Wikidata.¹

Timeline

Jan 28, 2015New chief executive James J. Moore Jr. becomes CEO⁷
Sep 25, 2014New chief executive Kenneth Michael Hartwick becomes CEO⁸
Jul 23, 2010New chief executive Barry Edward Welch becomes CEO⁹
2004Founded Founded¹

Filings

1 filings to the SEC since October 2021: 1 large holders. The latest 1:

Feb 14, 2022SC 13G/A AMENDMENT NO 1 EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

RBC Global Asset Management Inc.SC 13G/A, 1 filing Feb 14, 2022²⁶

SEC filer profile

How Atlantic Power Corporation is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

Name on EDGARATLANTIC POWER CORP²
CIK0001419242
Employer ID (EIN)55-0886410²
Filer statusAccelerated filer<br>smaller reporting company²
Incorporated inBritish Columbia, Canada²
Fiscal year endsDecember 31²
Industry code (SIC)4900 Electric, Gas & Sanitary Services²
Business address3 Allied Drive, Suite 155, Dedham, MA 02026²
Phone617-977-2400²
Shares outstanding89,797,798 as of May 6, 2021²⁷
Public float$176.5M as of Jun 30, 2020⁶
On EDGAR sinceOct 15, 2007²
Filings1,012 in all: 4 (465), 8-K (200), 10-Q (34), CORRESP (30), SC 13G/A (26), UPLOAD (26), 3 (21), DEFA14A (19)²
All 58 form types
SC 13D/A (14), S-1/A (13), 4/A (12), 424B5 (12), SC 13G (12), 10-K (11), DEF 14A (10), EFFECT (10), FWP (9), 425 (6), 8-K/A (6), ARS (6), SC TO-I/A (6), S-1 (5), 10-12B/A (4), PRE 14A (3), S-8 (3), S-8 POS (3), 10-K/A (2), 10-Q/A (2), 424B1 (2), 424B2 (2), CERTNYS (2), DEFM14A (2), POS AM (2), POSASR (2), PREM14A (2), PRER14A (2), S-3 (2), S-4/A (2), SC 13D (2), SC TO-I (2), 10-12B (1), 12G3-2B (1), 15-12B (1), 25-NSE (1), 424B3 (1), 5 (1), 5/A (1), 8-A12B (1), 8-A12B/A (1), AW (1), DEFR14A (1), F-X (1), S-3/A (1), S-3ASR (1), S-3D (1), S-4 (1), SC TO-C (1), SUPPL (1)
Latest filingsAnnual report (10-K) Mar 4, 2021
Quarterly report (10-Q) May 6, 2021
Proxy statement (DEF 14A) Apr 28, 2020
Latest 8-K (8-K) May 14, 2021

Sources

The numbers on this page point here. Each one links to the record it came from.

1
WikidataAtlantic Power Corporation on Wikidata
2
SEC EDGARAtlantic Power Corporation filings on SEC EDGAR
3
WikipediaAtlantic Power Corporation on Wikipedia
4
GLEIFAtlantic Power Corporation LEI record (2U3V7WI7HVCB625AQQ40)
5
SEC EDGARAtlantic Power Corporation filings on SEC EDGAR
6
SEC EDGARAtlantic Power Corporation 10-K for fiscal 2020
7
SEC EDGARJames J. Moore Jr., Chief executive officer
8
SEC EDGARKenneth Michael Hartwick, Chief executive officer
9
SEC EDGARBarry Edward Welch, Chief executive officer
10
SEC EDGARTerrence Ronan, Chief financial officer
11
SEC EDGARPatrick Joseph Welch, Chief financial officer
12
SEC EDGARPhilip Daniel Rorabaugh, SVP, Asset Management
13
SEC EDGARJames Patrick D'Angelo, Chief Administrative Officer
14
SEC EDGARJoseph Cofelice, EVP Commercial Development
15
SEC EDGARPatrick Joseph Welch, C.F.O. & Corprorate Secretary
16
SEC EDGARPaul Howard Rapisarda, Managing Director, Asset Manag
17
SEC EDGARDanielle S. Mottor, Board member
18
SEC EDGARKevin Howell, Board member
19
SEC EDGARGilbert Samuel Palter, Board member
20
SEC EDGARTeresa Ressel, Board member
21
SEC EDGARIrving Russell Gerstein, Board member
22
SEC EDGARJohn Alexander McNeil, Board member
23
SEC EDGARHolli Nichols, Board member
24
SEC EDGARKenneth Michael Hartwick, Board member
25
SEC EDGARR. Foster Duncan, Board member
26
SEC EDGARRBC Global Asset Management Inc. SC 13G/A on Atlantic Power Corporation
27
SEC EDGARAtlantic Power Corporation 10-Q filed May 6, 2021: shares outstanding