Welcome to our dedicated page for Alkermes Plc news (Ticker: ALKS), a resource for investors and traders seeking the latest updates and insights on Alkermes Plc stock.
Alkermes plc (Nasdaq: ALKS) is a global biopharmaceutical company focused on neuroscience, and its news flow reflects both commercial execution and clinical development in this area. Company announcements emphasize proprietary products for alcohol dependence, opioid dependence, schizophrenia and bipolar I disorder, alongside a growing pipeline targeting neurological disorders such as narcolepsy and idiopathic hypersomnia.
Recent news has highlighted alixorexton, Alkermes investigational oral, selective orexin 2 receptor agonist. The company has reported positive phase 2 data from the Vibrance-1 study in narcolepsy type 1 and the Vibrance-2 study in narcolepsy type 2, and has announced that alixorexton is being evaluated in the Vibrance-3 study in idiopathic hypersomnia. In a separate update, Alkermes disclosed that the U.S. Food and Drug Administration granted Breakthrough Therapy designation to alixorexton for narcolepsy type 1, based on phase 1 and phase 2 data.
Investors following ALKS news will also see regular earnings releases, where the company reports quarterly revenues, net income, EBITDA and adjusted EBITDA, and provides updates to its financial expectations. These releases describe trends in proprietary product sales, including VIVITROL, ARISTADA and LYBALVI, and manufacturing and royalty revenues related to VUMERITY and certain long-acting antipsychotic products.
Another key theme in Alkermes news is corporate transactions and financing. The company has announced a transaction agreement, and later an amendment, to acquire Avadel Pharmaceuticals plc, adding LUMRYZ, an FDA-approved once-at-bedtime oxybate for narcolepsy, to its commercial portfolio if the transaction is completed. Related filings describe an amended and restated bridge term loan credit agreement designed to support financing of the proposed acquisition.
Visitors to the ALKS news page can expect updates on clinical trial milestones, regulatory designations, quarterly financial performance, investor conference participation and material corporate agreements. This mix of scientific, financial and strategic information provides context for understanding Alkermes evolving position in neuroscience and sleep medicine.
Alkermes (Nasdaq: ALKS) completed its acquisition of Avadel on Feb. 12, 2026, adding FDA-approved LUMRYZ® and a commercial sleep-medicine organization.
The all-cash deal used ~$775 million in cash and $1.525 billion of term loans, is expected to be accretive in 2026, and adds a phase 1 candidate, valiloxybate.
Alkermes (Nasdaq: ALKS) will report fourth quarter and year-end 2025 financial results on Feb. 25, 2026 and host a conference call and webcast at 8:00 a.m. ET (1:00 p.m. GMT).
Management will review 2025 results, discuss 2026 financial expectations and provide a corporate update. Webcast slides and a replay will be available on the company website.
Alkermes (Nasdaq: ALKS) announced that the U.S. FDA granted Breakthrough Therapy designation to alixorexton for the treatment of narcolepsy type 1 (NT1) on January 6, 2026.
The designation is based on phase 1 and phase 2 data, including positive results from Vibrance-1 (n=92), where alixorexton met the primary endpoint with statistically significant, dose-dependent improvements on the Maintenance of Wakefulness Test (MWT) and was generally well tolerated. Alkermes plans to initiate a global phase 3 program in Q1 2026.
Alkermes (Nasdaq: ALKS) said CEO Richard Pops will deliver a corporate overview at the 44th Annual J.P. Morgan Healthcare Conference on Jan. 13, 2026 at 10:30 a.m. PST (1:30 p.m. EST / 6:30 p.m. GMT).
The presentation will be available live via webcast under the Investors tab at www.alkermes.com and will be archived for 14 days.
Alkermes is a mid-cap biopharmaceutical company focused on neuroscience, with marketed products for alcohol dependence, opioid dependence, schizophrenia and bipolar I disorder, and a clinical pipeline including programs in narcolepsy and idiopathic hypersomnia.
Alkermes (Nasdaq: ALKS) said management will participate in two investor conferences in early December 2025: the 8th Annual Evercore Healthcare Conference on Dec. 3, 2025 at 2:10 p.m. ET and the Piper Sandler 37th Annual Healthcare Conference on Dec. 4, 2025 at 12:00 p.m. ET.
The company said live webcasts will be available under the Investors tab at www.alkermes.com and that the webcasts will be archived for 14 days. Alkermes is described as a mid-cap biopharmaceutical company focused on neuroscience, with marketed products for alcohol dependence, opioid dependence, schizophrenia and bipolar I disorder and a clinical/preclinical pipeline including narcolepsy and idiopathic hypersomnia. Headquarters: Ireland; R&D office: Massachusetts; manufacturing: Ohio.
Alkermes (Nasdaq: ALKS) agreed to increase its recommended offer to acquire Avadel (Nasdaq: AVDL) to up to $22.50 per share — consisting of $21.00 cash plus one non-transferable contingent value right (CVR) payable up to $1.50 if final FDA approval for LUMRYZ for idiopathic hypersomnia in adults is achieved by the end of 2028.
The Increased Offer values Avadel at up to approximately $2.37 billion. The Amended Agreement was approved by both boards and the transaction remains expected to close in Q1 2026, subject to customary conditions and an extended End Date. J.P. Morgan provided fully committed financing for Alkermes.
Alkermes (Nasdaq: ALKS) responded on November 14, 2025 to Avadel's announcement about a possible Lundbeck offer for Avadel. Alkermes said its board is considering options with advisors and reiterated contractual protections in the existing Transaction Agreement.
Key contractual points: Avadel cannot terminate the agreement to accept a Company Superior Proposal unless its board, in good faith, determines doing so meets fiduciary duties and Avadel gives Alkermes at least five (5) Business Days written notice and engages in good‑faith discussions about amendments. Avadel also cannot change its board recommendation or sign with Lundbeck until those steps occur. Alkermes said a further announcement will follow as appropriate and will post this release on its website by 12:00 p.m. ET on November 17, 2025.
Alkermes (Nasdaq: ALKS) announced positive topline results from the Vibrance-2 phase 2 study of once-daily alixorexton in patients with narcolepsy type 2 on Nov. 12, 2025. In a randomized, double-blind trial (n=93) alixorexton met dual primary endpoints at week eight: clinically meaningful improvements in wakefulness (MWT) and excessive daytime sleepiness (ESS) versus placebo.
By pre-specified analysis, the 14 mg and 18 mg doses achieved statistical significance on MWT, and the 18 mg dose achieved statistical significance on ESS. Alixorexton was generally well tolerated; most TEAEs were mild-to-moderate and no serious TEAEs were reported. Alkermes plans to start a global phase 3 program in Q1 2026.
Alkermes (Nasdaq: ALKS) said management will participate in two investor conferences in November 2025: the Stifel 2025 Healthcare Conference on Nov. 13, 2025 at 2:40 p.m. ET and the Jefferies Global Healthcare Conference in London on Nov. 19, 2025 at 11:30 a.m. ET.
Both events will be webcast live and the webcasts will be available under the Investors tab at www.alkermes.com and archived for 14 days.
Alkermes (Nasdaq: ALKS) filed an Opening Position Disclosure (Form 8.1(a)&(b)) under Irish Takeover Panel rules on 5 November 2025 with a position date of 3 November 2025. The form names Avadel Pharmaceuticals plc as the related offeror/offeree and states Alkermes as the offeror. The disclosure reports no indemnities, option arrangements, or derivative agreements and no supplemental Form 8 attached. It lists J.P. Morgan staff holdings totalling 13,553 ordinary shares (0.0139%) in Avadel, split between two entities (53 and 13,500 shares).