ROCKVILLE, Maryland and EDMONTON, Alberta – May 12, 2025 – Aurinia Pharmaceuticals Inc. (NASDAQ: AUPH) today announced financial results for the three months ended March 31, 2025.

•Total Revenue: For the three months ended March 31, 2025, total revenue was $62.5 million, up 24% from $50.3 million in the same period of 2024.

–Net Product Sales: For the three months ended March 31, 2025, net product sales of LUPKYNIS, the first FDA-approved oral therapy for the treatment of adult patients with active lupus nephritis, were $60.0 million, up 25% from $48.1 million in the same period of 2024.

–License, Collaboration and Royalty Revenue: For the three months ended March 31, 2025, license, collaboration and royalty revenue, which includes manufacturing services revenue from Aurinia’s collaboration partner, Otsuka, was $2.5 million, up 14% from $2.2 million in the same period of 2024.

•Net Income (Loss): For the three months ended March 31, 2025, net income (loss) was $23.3 million, compared to $(10.7) million in the same period of 2024.

•Cash Flow Provided by (Used in) Operating Activities: For the three months ended March 31, 2025, cash flow provided by (used in) operating activities was $1.3 million, compared to $(18.6) million in the same period of 2024. Excluding $11.1 million of cash payments made in connection with the November 2024 restructuring, cash flow generated from operations was $12.4 million for the three months ended March 31, 2025.

As of March 31, 2025, Aurinia had cash, cash equivalents, restricted cash and investments of $312.9 million, compared to $358.5 million at December 31, 2024. For the three months ended March 31, 2025, the Company repurchased 5.8 million of its common shares for $47.4 million.

For 2025, Aurinia is reiterating its established total revenue guidance in the range of $250 million to $260 million and net product sales guidance in the range of $240 million to $250 million.

“We are pleased to report continued positive growth and momentum for LUPKYNIS in the first quarter of 2025 and are looking forward to a strong performance this year,” stated Peter Greenleaf, President and Chief Executive Officer of Aurinia. “Following the recent update to the American College of Rheumatology lupus nephritis treatment guideline, which recommends the incorporation of drugs like LUPKYNIS into first-line therapy, our commercial organization is focused on educating rheumatologists about the benefits of initiating LUPKYNIS earlier in the treatment paradigm. We also remain on track to report initial results from our Phase 1 study of AUR200, a dual inhibitor of B cell activating factor (BAFF) and a proliferation inducing ligand (APRIL), later this quarter.”

A webcast and conference call will be hosted today, May 12, at 8:30 a.m. ET. The link to the audio webcast is available here. To join the conference call, please dial 877-407-9170/+1 201-493-6756. A replay of the webcast will be available on Aurinia’s website.

Aurinia is a biopharmaceutical company focused on delivering therapies to people living with autoimmune diseases with high unmet medical needs. In January 2021, the Company introduced LUPKYNIS® (voclosporin), the first FDA-approved oral therapy for the treatment of adult patients with active lupus nephritis. Aurinia is also developing AUR200, a dual inhibitor of B cell activating factor (BAFF) and a proliferation inducing ligand (APRIL) for the potential treatment of autoimmune diseases.

This press release contains forward-looking information within the meaning of applicable Canadian securities law and forward-looking statements within the meaning of applicable U.S. securities law. We caution investors that forward-looking statements are based on management’s expectations and assumptions as of the date of this press release and involve substantial risks and uncertainties that could cause the actual outcomes to differ materially from what we currently expect. These risks and uncertainties include, but are not limited to, those associated with: LUPKYNIS net product sales, the timing of clinical study results and other risks and uncertainties identified in our filings with the U.S. Securities and Exchange Commission. Forward-looking statements in this press release apply only as of the date made, and we undertake no obligation to update or revise any forward-looking statements to reflect subsequent events or circumstances. Additional information related to Aurinia, including a detailed list of the risks and uncertainties affecting Aurinia and its business, can be found in Aurinia’s most recent Annual Report on Form 10-K and its other public available filings available by accessing the Canadian Securities Administrators’ System for Electronic Document Analysis and Retrieval (SEDAR) website at www.sedarplus.ca or the U.S. Securities and Exchange Commission’s Electronic Document Gathering and Retrieval System (EDGAR) website at www.sec.gov/edgar, and on Aurinia’s website at www.auriniapharma.com.

Andrea Christopher

Corporate Communications and Investor Relations

Aurinia Pharmaceuticals Inc.

achristopher@auriniapharma.com

ir@auriniapharma.com

(in thousands, except per share data)