Apellis Pharmaceuticals Inc (APLS) Stock
APLS is no longer traded. Apellis Pharmaceuticals was acquired by Biogen (BIIB) on May 15, 2026.
Prices on this page are historical; the last trade was May 13, 2026 at $41.03.
See Biogen (BIIB) stock →Apellis Pharmaceuticals stock price history
APLS final trading statistics
- Final close
- $41.03
- Final trading day
- May 13, 2026
- Market cap at delisting
- $5.25B
- Shares outstanding
- 128.02M
- Final 52-week range
- $16.10 – $41.14
- Avg. volume (final 3 mo.)
- 6,264,317
- All-time high (split-adj.)
- $93.31 · Jun 2023
- All-time low (split-adj.)
- $11.47 · Oct 2018
- Return since IPO
- +192.4%
- Beta
- -0.25
- Book value / share
- $3.24
- Price / book
- 12.65
Apellis Pharmaceuticals annual financials
| Fiscal year | Revenue | Net income | EPS |
|---|---|---|---|
| FY2025 | $1.00B | $22.4M | $0.13 |
| FY2024 | $781.37M | -$197.9M | -$1.58 |
| FY2023 | $396.59M | -$528.6M | -$4.48 |
| FY2022 | $75.42M | -$652.2M | -$6.13 |
| FY2021 | $66.56M | -$746.4M | -$7.19 |
Last five fiscal years reported before the delisting; fiscal year ending December. EPS is adjusted (non-GAAP) EPS as reported. Source: company filings via EODHD.
About Apellis Pharmaceuticals Inc
Apellis Pharmaceuticals, Inc., a commercial-stage biopharmaceutical company, focuses on the discovery, development, and commercialization of novel therapeutic compounds to treat diseases with high unmet needs. It offers EMPAVELI for the treatment of paroxysmal nocturnal hemoglobinuria; and SYFOVRE for treating geographic atrophy secondary to age-related macular degeneration and geographic atrophy (GA). The company also develops EMPAVELI to treat C3 glomerulopathy and immune complex membranoproliferative glomerulonephritis, focal segmental glomerulosclerosis, and delayed graft function; and APL-3007, a small interfering RNA, or siRNA for the treatment of GA. In addition, it conducts preclinical studies for APL-9099, a treatment targeting the neonatal Fc receptor, or FcRn, which has the potential to be a first-in-class gene editing treatment for future target indications with one-time dosing; and developing other programs with its proprietary in-house capabilities and under its Beam collaboration. It has a collaboration and license agreement with Swedish Orphan Biovitrum AB (publ) for development and commercialization of pegcetacoplan; and a collaboration with Beam Therapeutics, Inc. focused on the use of Beam's base editing technology to discover new treatments for complement-driven diseases. Apellis Pharmaceuticals, Inc. was incorporated in 2009 and is headquartered in Waltham, Massachusetts. As of May 14, 2026, Apellis Pharmaceuticals, Inc. operates as a subsidiary of Biogen Inc.
Apellis Pharmaceuticals stock FAQ
What happened to Apellis Pharmaceuticals stock?
Apellis Pharmaceuticals was acquired by Biogen (BIIB) on May 15, 2026. APLS stock stopped trading on the Nasdaq, with a final close of $41.03 on May 13, 2026.
Is APLS stock still trading?
No. APLS was delisted from the Nasdaq on May 15, 2026 and no longer trades on a U.S. exchange.
What was the last price of APLS stock?
APLS closed at $41.03 on its final trading day, May 13, 2026, for a market value of about $5.25B.
What were Apellis Pharmaceuticals's revenue and earnings in its last full fiscal year?
Apellis Pharmaceuticals reported revenue of $1.00B and net income of $22.4M in fiscal 2025, its last full year as a public company.
When did Apellis Pharmaceuticals go public?
Apellis Pharmaceuticals Inc stock began trading on November 9, 2017.