BREADCRUMB Home Invest Share Information SHARE INFORMATION Ticker Exchange Security Type ALA TSX AltaGas Ltd. Common Shares ALA.PR.A TSX AltaGas Ltd. Series A Preferred Shares ALA.PR.B TSX AltaGas Ltd. Series B Preferred Shares ALA.PR.U TSX AltaGas Ltd. Series C Preferred Shares ALA.PR.E TSX AltaGas Ltd. Series E Preferred Shares ALA.PR.G TSX AltaGas Ltd. Series G Preferred Shares ALA.PR.H TSX AltaGas Ltd. Series H Preferred Shares ALA.PR.K TSX AltaGas Ltd. Series K Preferred Shares Common Shares Outstanding 280.2 million (as at October 22, 2021) AltaGas’ common shares are listed on the Toronto Stock Exchange (TSX) and the symbol ALA. MAIN NAVIGATION FOR SIDEBAR Events & Presentations Why Invest Financials Share Information DRIP DRIP Summary Preferred Shares Dividends Analyst Coverage Tax Information FAQs 2021 Annual Meeting of Shareholders Investor Contact ALA 25.54 0.85 Open: 24.67 High: 25.6 Low: 24.67 52 Week High: 26.94 Low: 18.05 FOOTER MENU Vendors Contact Legal Sitemap 24 Hour Toll-free Emergency Number: 1.866.826.3830 Pipeline Damage Prevention: Call Before You Dig. 2021 AltaGas Ltd. All Rights Reserved

BREADCRUMB Home Responsibility Community Investment COMMUNITY INVESTMENT We strive to excel as a responsible corporate citizen by giving back to the communities where we live, work and do business by providing funding for non-profit organizations and projects and initiatives that help build and enhance communities. By balancing social responsibility with the economics of doing business, we deliver sustainable benefits to our stakeholders. We support local community initiatives and donate to charitable organizations across our operating regions that focus on three core areas: Healthy and Safe Communities Bright Futures Environmental Champions To submit a grant request please access our grants management system at https://altagas.versaic.com/login. Learn more about our commitment to creating social value for our communities in our 2019 Environmental, Social and Governance Report. MAIN NAVIGATION FOR SIDEBAR Safety Environment Indigenous Peoples Community Investment Sustainability People Links AltaGas grants help Nordiq Canada support local clubs Videos ALA 25.54 0.85 Open: 24.67 High: 25.6 Low: 24.67 52 Week High: 26.94 Low: 18.05 FOOTER MENU Vendors Contact Legal Sitemap 24 Hour Toll-free Emergency Number: 1.866.826.3830 Pipeline Damage Prevention: Call Before You Dig. 2021 AltaGas Ltd. All Rights Reserved