HALO

EX-99.1

2 ex991q320268-k.htm

EX-99.1

Document

Exhibit 99.1

HALOZYME REPORTS THIRD QUARTER 2026 RESULTS AND

RAISES FULL YEAR 2026 FINANCIAL GUIDANCE

Total Revenue Increased 39% YOY to $493 million

Royalty Revenue Increased 44% YOY to $341 million

Raising 2026 Financial Guidance Ranges:

Total Revenue of $1.860 - $1.925 billion, YOY Growth of 33% - 38%

Royalty Revenue of $1.235 - $1.255 billion, YOY Growth of 42% - 45%

Adjusted EBITDA of $1.240 - $1.290 billion, YOY Growth of 89% - 96%1

Non-GAAP Diluted EPS of $8.75 - $9.05, YOY Growth of 111% - 118%1

Expanded ENHANZE® Collaboration Agreements with Three Current Partners

Three ENHANZE® Programs Advanced into Phase 1 Clinical Development

SAN DIEGO, November 5, 2026 -- Halozyme Therapeutics, Inc. (Nasdaq: HALO) (“Halozyme” or the “Company”) today reported its financial and operating results for the third quarter ended September 30, 2026, and provided an update on its recent corporate activities.

“Halozyme delivered another exceptional quarter, with total revenue increasing 39% and royalty revenue growing 44% year-over-year to record levels,” said Dr. Helen Torley, President and Chief Executive Officer. “In and post the quarter, we have achieved multiple milestones that expand our opportunity and diversify our revenue. During the quarter, we expanded our agreements with argenx and Incyte to include additional targets to be evaluated with ENHANZE. In October, we also signed an expanded agreement with Johnson & Johnson for one additional target. Three ENHANZE programs, one each with Pfizer, Incyte and argenx advanced into Phase 1 clinical development, bringing our total products in development to twelve.”

Dr. Torley continued, “In October, we also achieved an important victory in protecting our intellectual property. The Dutch specialized patent court found that Merck is infringing one of our MDASE patents and granted an injunction prohibiting the launch of Keytruda Qlex in multiple European markets. Our commitment to protecting the value of our innovations, growing royalties, continued partner expansion and growing pipeline demonstrates the power of Halozyme’s compounding platform engine and positions us to deliver durable revenue well into the next decade.”

“Based on our strong financial performance this quarter, we are pleased to be able to raise our guidance for the full year 2026,” said Darren Snellgrove, Executive Vice President and Chief Financial Officer. “We also further strengthened our financial position with the successful completion of our $1.5 billion convertible notes, which enhances our flexibility to execute our disciplined capital allocation strategy. We completed $400 million in share repurchases this year while continuing to invest in our highest-return organic opportunities and maintaining a clear path to retire our remaining 2027 and

2028 notes at maturity. With our strong cash generation, we remain focused on capital deployment to maximize long-term value creation.”

Recent and Third Quarter Corporate Highlights:

•In October 2026, the Company announced the specialized Dutch patent court of the Hague found Merck Sharp & Dohme B.V. (“MSD BV”), the central European Market Authorization holder for Merck & Co., Inc., to be infringing one of Halozyme’s MDASE™ patents and ordered MSD BV to refrain from manufacturing, having manufactured, offering, placing on the market and using, or importing or stocking for these purposes, Keytruda Qlex in Belgium, Denmark, France, Ireland, Italy, Sweden, Switzerland and the Netherlands. The injunction also forbids MSD BV to facilitate infringement by its affiliates in those countries, including by allowing the use of its European Marketing Authorization. The court also rejected MSD BV’s arguments that the patent is invalid.

•During the third quarter of 2026, Halozyme repurchased approximately 0.8 million shares for $67.2 million at an average price of $79.47 per share under the May 2026 share repurchase program, resulting in $400 million of share repurchases in 2026.

Recent Partner Highlights:

•In October 2026, Takeda announced a Biologics License Application was filed with the Food and Drug Administration (“FDA”) for TAK-881 for the treatment of Primary Immunodeficiency Disease.

•In October 2026, Janssen expanded its collaboration and licensing agreement with us for an additional oncology target to be developed with ENHANZE®.

•In October 2026, Roche announced the FDA has approved TECENTRIQ® (atezolizumab) and TECENTRIQ HYBREZA® (atezolizumab and hyaluronidase-tqjs) in combination with a fluoropyrimidine and oxaliplatin for the adjuvant treatment of stage III deficient DNA mismatch repair (“dMMR”) colon cancer, a type of tumour characterized by high mutation rates. This approval marks the twelfth indication for TECENTRIQ in the U.S.

Third Quarter Partner Highlights:

•In the third quarter of 2026, argenx submitted a supplemental Biologics License Application for VYVGART® in ocular myasthe

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