Skip to content
Sign in

ALKS · NASDAQ

Alkermes plc. (ALKS) Stock Price & Fundamentals

$646.67−0.40%−$2.62End-of-day price as of Oct 9, 2026

Alkermes plc. (ALKS) closed at $646.67 on Oct 9, 2026, down 0.40% from the previous close of $649.29.

Share price, past year

1Y +18.18%

52-week range $543.26 – $677.35. Daily closing prices.
Monthly closing prices
Last closing price of each month
DateClose
Oct 9, 2026$646.67
Sep 30, 2026$654.76
Aug 31, 2026$622.33
Jul 31, 2026$620.65
Jun 30, 2026$635.69
May 29, 2026$667.47
Apr 30, 2026$674.69
Mar 31, 2026$646.67
Feb 27, 2026$623.85
Jan 30, 2026$607.36
Dec 31, 2025$609.13
Nov 28, 2025$601.60
Oct 31, 2025$582.67

Key statistics

Market cap
$108.34B
P/E (TTM)
1,060.1
EPS (TTM)
$0.61
Revenue (TTM)
$1.67B
Net income (TTM)
$66.12M
Shares outstanding
167.5M
Dividend yield
—
52-week range
$543.26 – $677.35

Alkermes plc.'s market cap is $108.34B, based on a share price of $646.67 and 167.5M shares outstanding as of Jun 30, 2026.

Financials

Alkermes plc. reported revenue of $1.48B for fiscal 2025, down 5.25% from fiscal 2024.

Alkermes plc. earned net income of $241.66M in fiscal 2025, a net margin of 16.4%.

Annual revenue

FY16FY17FY18FY19FY20FY21FY22FY23FY24FY25
Annual revenue by fiscal year; the table below lists the values.
Alkermes plc. annual financials by fiscal year, from SEC filings
Fiscal yearRevenueGrowthNet incomeNet marginEPS (diluted)Free cash flow
FY2025ended Dec 31, 2025$1.48B−5.3%$241.66M16.4%$1.43$480.33M
FY2024ended Dec 31, 2024$1.56B−6.4%$367.07M23.6%$2.17$405.64M
FY2023ended Dec 31, 2023$1.66B+49.6%$355.76M21.4%$2.10$353.31M
FY2022ended Dec 31, 2022$1.11B−5.3%−$158.27M−14.2%−$0.97−$17.21M
FY2021ended Dec 31, 2021$1.17B+13.0%−$48.17M−4.1%−$0.29$73.70M
FY2020ended Dec 31, 2020$1.04B−11.3%−$110.86M−10.7%−$0.70$40.62M
FY2019ended Dec 31, 2019$1.17B+7.0%−$196.62M−16.8%—−$18.87M
FY2018ended Dec 31, 2018$1.09B+21.1%−$139.31M−12.7%—$29.85M
FY2017ended Dec 31, 2017$903.37M+21.2%−$157.95M−17.5%—−$32.11M
FY2016ended Dec 31, 2016$745.69M—−$208.44M−28.0%—−$107.46M
Alkermes plc. quarterly results
QuarterRevenueNet incomeEPS (diluted)
Q2 FY2026ended Jun 30, 2026$496.01M$501.00K$0.00
Q1 FY2026ended Mar 31, 2026$392.91M−$66.48M−$0.40
Q4 FY2025ended Dec 31, 2025$384.55M$49.34M—
Q3 FY2025ended Sep 30, 2025$394.19M$82.76M$0.49
Q2 FY2025ended Jun 30, 2025$390.66M$87.10M$0.52
Q1 FY2025ended Mar 31, 2025$306.51M$22.46M$0.13
Q4 FY2024ended Dec 31, 2024$429.99M$146.50M—
Q3 FY2024ended Sep 30, 2024$378.14M$92.38M$0.55

Company profile

Name
Alkermes plc.
Ticker
ALKS
Exchange
NASDAQ
Industry (SEC SIC)
Pharmaceutical Preparations
Headquarters
Connaught House, 1 Burlington Road, Dublin 4, L2 00000
Fiscal year ends
December
SEC CIK
0001520262

Recent SEC filings

Frequently asked questions

What is Alkermes plc.'s stock price?

Alkermes plc. (ALKS) closed at $646.67 on Oct 9, 2026, down 0.40% from the previous close of $649.29.

What is Alkermes plc.'s market cap?

Alkermes plc.'s market cap is $108.34B, based on a share price of $646.67 and 167.5M shares outstanding as of Jun 30, 2026.

How much revenue does Alkermes plc. make?

Alkermes plc. reported revenue of $1.48B for fiscal 2025, down 5.25% from fiscal 2024.

What is ALKS's P/E ratio?

Alkermes plc.'s price-to-earnings ratio is 1,060.1, based on trailing twelve-month diluted EPS of $0.61.

Does Alkermes plc. pay a dividend?

Alkermes plc.'s recent filings report no dividends declared over the last four quarters.

Sources and methodology

Fundamentals come from Alkermes plc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 8, 2026. Data sources and disclosures