25 February 2026
Disclaimer: This is a simplified summary of a public company filing. See full disclaimer here.
Apellis Pharmaceuticals, Inc.
CIK: 1492422•1 Annual Report•Latest: 2026-02-24
10-K / February 24, 2026
Apellis Pharmaceuticals
Overview
- Sector: Commercial-stage biopharmaceutical company
- Strategy: Discover, develop and commercialize novel therapeutics that inhibit the complement system
- Focus: Diseases driven by excessive complement activation with high unmet need
- Marketing rights:
- SYFOVRE (pegcetacoplan): exclusive, worldwide commercialization rights
- EMPAVELI (pegcetacoplan): exclusive U.S. commercialization rights; Sobi holds ex-U.S. rights for systemic pegcetacoplan
Key products and programs
- SYFOVRE (pegcetacoplan)
- Route: Intravitreal injection
- Indication: Geographic atrophy (GA) secondary to age-related macular degeneration (AMD)
- Market status: Commercially marketed; U.S. launch in March 2023
- EMPAVELI (pegcetacoplan)
- Route: Systemic subcutaneous administration
- Indication: Paroxysmal nocturnal hemoglobinuria (PNH)
- Regulatory: FDA-approved May 2021
- Rights: Apellis retains U.S. commercialization; Sobi retains ex-U.S. rights for systemic pegcetacoplan
- Aspaveli
- Indication/territory: C3G and primary IC-MPGN outside the U.S. (Sobi holds ex-U.S. rights)
- Regulatory milestone: EMA approval for C3G and primary IC-MPGN (January 2026)
- APL-3007
- Type: siRNA targeting complement in the retina
- Status: In development; Phase 2 multi-dose trial in GA initiated June 2025
- Rationale: Combined therapy with SYFOVRE to extend complement inhibition in the retina and choroid
- Beam collaboration and APL-9099
- 2021: Exclusive five-year collaboration with Beam for base editing in complement targets
- 2025: Opted in to Beam License Agreement for FcRn in the liver; upfront milestone paid
- Ongoing: Additional programs under in-house and Beam collaborations
Financial highlights (reported)
- SYFOVRE — U.S. net product revenue
- 2025: $586.9 million
- 2024: $611.9 million
- EMPAVELI — U.S. net product revenue
- 2025: $102.4 million
- 2024: $98.1 million
- Royalties from Sobi
- 2025: $13.2 million
- 2024: $18.4 million
- Royalty Buy-Down with Sobi
- July 1, 2025: Upfront payment of $275.0 million
- Structure: 90% reduction in Sobi’s royalty obligations under the collaboration agreement, subject to caps (initial cap of 1.45x the upfront amounts); if the cap is met, royalties revert to 100%
- Additional 2025–2026 cash events
- January 2026: EMA approval of Aspaveli
- February 2026: Sobi paid a $25.0 million milestone under the Royalty Agreement
- Beam collaboration payments (highlights)
- Upfronts: $50.0 million (July 2021); $25.0 million (June 2022)
- August 2025: Opt-in for FcRn in the liver; $3.8 million upfront milestone paid in September 2025
- Potential future payments: Up to $168.8 million in regulatory/development milestones; up to $215.0 million in sales milestones; low single-digit royalties on annual net sales (territory-dependent)
Partnerships and commercial arrangements
- Sobi collaboration
- Territory: Ex-U.S. commercialization of systemic pegcetacoplan
- Apellis retains U.S. commercialization rights for pegcetacoplan
- Aspaveli: Sobi holds ex-U.S. rights; a royalty buy-down reduces Sobi royalties subject to defined caps
- Royalty Agreement with Sobi
- Upfront: $275.0 million (July 2025)
- Milestones: $25.0 million upon EMA approval of Aspaveli (paid February 2026)
- Economics: Caps tied to Aspaveli performance; royalties revert to 100% if cap conditions are met
- Beam collaboration and license
- Initial collaboration (2021–2025): Base editing programs targeting complement pathologies
- Opt-in license (August 2025): FcRn in the liver
- Financials: Historical upfronts totaling $53.8 million; potential milestones and royalties as described above
Pipeline and R&D focus
- Target areas: Complement pathway modulation across eye diseases, systemic complementopathies, and rare kidney diseases
- Ophthalmology: GA with SYFOVRE; APL-3007 siRNA program in GA
- Hematology: PNH with EMPAVELI
- Nephrology: C3G and primary IC-MPGN (Aspaveli ex-U.S.); programs in FSGS and delayed graft function (DGF)
- Innovative approaches: siRNA, injectable biologics, and base editing via the Beam collaboration (including FcRn targets)
- Selected clinical programs:
- GA: DERBY and OAKS Phase 3 showed slowing of GA lesion growth with monthly and every-other-month dosing options
- PNH: PEGASUS and PRINCE pivotal trials showed efficacy versus comparator
- C3G/transplant: VALIANT and NOBLE trials addressed transplant recurrence and proteinuria endpoints
- Delivery and administration: Continued work on co-pack and single-dose prefilled syringe formats for SYFOVRE (single-dose prefilled syringe planned for regulatory submission in H1 2026)
Intellectual property
- Portfolio: 31 U.S. patents and 29 U.S. patent applications, plus foreign counterparts
- Core technologies: Pegylated compstatin analogs (pegcetacoplan) and dosing/methods for ophthalmic and non-ophthalmic indications
- Licenses:
- Penn: Exclusive worldwide license for ophthalmic and non-ophthalmic fields
- Beam: Non-exclusive license for base editing technology; Apellis holds exclusive rights for therapeutic programs covered by the collaboration where applicable
- Patent terms: Expirations range into the 2030s–2040s; patent term extensions and regulatory exclusivities are being pursued where available
Manufacturing and operations
- Model: Outsourced manufacturing with contract manufacturers
- Key suppliers:
- Bachem Americas, Inc.: Peg drug substance for systemic and intravitreal pegcetacoplan
- NOF Corporation: PEG derivative supply
- Supply agreements:
- Bachem supply agreement: Initial term through 2025 with automatic renewal
- NOF supply agreement: Extended through 2030; minimum purchase obligations were adjusted for 2025
- Packaging and device development:
- Single-package co-pack for SYFOVRE introduced in Q4 2025
- Single-dose prefilled syringe development for SYFOVRE planned for regulatory submission in H1 2026
Regulatory and market environment
- Approvals:
- U.S. FDA approvals for SYFOVRE (GA) and EMPAVELI (PNH)
- EMA approval of Aspaveli for C3G and primary IC-MPGN (January 2026)
- Post-approval activities: Ongoing pharmacovigilance, post-approval studies, REMS considerations, and marketing authorization maintenance
- Data privacy: Compliance with HIPAA, GDPR/DPAs, and evolving global privacy laws affects trial data and operations
Summary
Apellis is a specialized biotech focused on complement inhibition with two marketed pegcetacoplan products in the U.S. (SYFOVRE and EMPAVELI), an international commercialization strategy through Sobi, and a pipeline spanning ophthalmology, hematology, and nephrology. The company has structured collaboration and licensing arrangements that include a substantial royalty buy-down with Sobi and an active research and optioned-licensing relationship with Beam for base editing approaches. Financially, disclosed 2025 product revenues and collaboration royalties demonstrate commercial traction in U.S. markets, and milestone and license payments provide near-term cash events.
