Alkermes plc (ALKS) Stock

About Alkermes plc

Alkermes plc is led by CEO Richard F. Pops, employs 2,050 people, headquartered in Dublin, IE, publicly traded since 1991.

Alkermes plc (ALKS) stock trades at $43.63 with a market capitalization of $7.32B. The stock is valued at a price-to-earnings (P/E) ratio of 103.60, price-to-book of 3.85, price-to-sales of 4.20. Over the past 52 weeks the stock has ranged between $27.00 and $55.67, and currently trades 21.6% below its 52-week high.

On profitability, Alkermes plc generates a return on equity (ROE) of 3.72%, return on capital employed of 3.14%, an operating margin of 17.21%, a net profit margin of 3.97%.

Alkermes plc by the numbers, 2016–2025

Between 2016 and 2025 Alkermes plc reported revenue of $746.0M rising to $1.5B, a change of +97.9% across 10 years. Compounded, revenue has grown 7.3% a year over five years, 9.9% over three, -5.3% over the last twelve months. Net profit rose to $242.0M.

Operating margin went from -28.0% in 2016 to 17.2% in 2025, a gain of 45.2 percentage points. The most recent net margin is 3.97%. On a trailing twelve-month basis to Jun '26, revenue is $1.7B and net profit $67.0M.

Borrowings fell from $284.0M to $70.0M, cash from operations was $521.0M in the latest year, positive in 9 of the last 10.

Return on equity has averaged 9.7% over five years, and was 13.3% in the most recent year.

The share price itself has compounded at —% a year over five years, —% over three, —% over the last year. Past price movement is history, not a forecast.

Figures are as reported and in the company's own reporting currency. They describe what has already happened and carry no implication about what follows.

Alkermes plc (ALKS) — frequently asked questions