Companies: 10,795·Total market cap: $144.5T
AltaGas Ltd.

AltaGas Ltd.

ATGFFOTCUtilities● Active
$39.28
$-0.88(-2.19%)
Market Cap$12.2B
P/E Ratio—
52W High$39.69
52W Low$27.32
SEC Filings
Foreign Private Issuer · Files 20-F / 6-K

AltaGas Ltd. (ATGFF) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001695519 · ATGFF · OTC · as of Jun 8, 2026

Filing snapshot

139
Total Filings
15-15D
Latest Form
2023-03-28
Most Recent
2005
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0001695519 · Updated hourly · Not investment advice

Latest Key Filings

6-KQuarterly Report
6-K
2023-03-02
View 6-K on SEC
8-KCurrent Report

No recent filings

Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
15-15D15-15D
15-15D
2023-03-28
View
6-KCurrent Report (Foreign Issuer)
6-K
2023-03-02
View
40-F40-F
40-F
2023-03-02
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2023-02-15
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-12-22
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-12-05
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-11-23
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-11-21
View
6-KCurrent Report (Foreign Issuer)
6-K
2022-10-28
View
6-KCurrent Report (Foreign Issuer)
FROM 6-K
2022-10-07
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-08-23
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-08-23
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-08-04
View
6-KCurrent Report (Foreign Issuer)
6-K
2022-07-28
View
6-KCurrent Report (Foreign Issuer)
FORM 6-K
2022-07-07
View
Showing 1–15 of 139 filingsForm 4 / 144 hidden

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001695519  |  Exchange: OTC · Utilities

AltaGas Ltd. (OTC: ATGFF) has submitted 139 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2005. As a Utilities sector company with CIK 0001695519, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is AltaGas Ltd.'s most comprehensive regulatory disclosure. The most recent AltaGas Ltd. 10-K was filed on — for fiscal year ending —. Historical ATGFF 10-K annual reports are available from 2017 through —.

Investors researching AltaGas Ltd. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
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→ ATGFF Financials→ ATGFF Earnings→ ATGFF Insider Trades

Frequently Asked Questions

ATGFF SEC Filings · 8 questions

AltaGas Ltd. (ATGFF) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 139 filings and access original documents at no cost. AltaGas Ltd.'s CIK is 0001695519.

ATGFF SEC filingsAltaGas Ltd. SEC documentsfind ATGFF 10-K