Alnylam Pharmaceuticals annual shares outstanding
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Alnylam Pharmaceuticals Shares Outstanding History (ALNY)
Alnylam Pharmaceuticals reported 132.4M shares outstanding at the end of fiscal 2025.
View full Alnylam Pharmaceuticals company overviewAlnylam Pharmaceuticals annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | 132.4M | 3.1M | +2.38% |
| 2024 | 2024-12-31 | 129.3M | 3.5M | +2.78% |
| 2023 | 2023-12-31 | 125.8M | 1.9M | +1.51% |
| 2022 | 2022-12-31 | 123.9M | 3.7M | +3.11% |
| 2021 | 2021-12-31 | 120.2M | 3.8M | +3.23% |
| 2020 | 2020-12-31 | 116.4M | 4.2M | +3.78% |
| 2019 | 2019-12-31 | 112.2M | 11.0M | +10.88% |
| 2018 | 2018-12-31 | 101.2M | 1.5M | +1.52% |
| 2017 | 2017-12-31 | 99.7M | 13.7M | +15.97% |
| 2016 | 2016-12-31 | 85.9M | 850,376 | +1.00% |
| 2015 | 2015-12-31 | 85.1M | 7.9M | +10.22% |
| 2014 | 2014-12-31 | 77.2M | 13.5M | +21.12% |
| 2013 | 2013-12-31 | 63.7M | 11.3M | +21.44% |
| 2012 | 2012-12-31 | 52.5M | 9.8M | +22.86% |
| 2011 | 2011-12-31 | 42.7M | 378,519 | +0.89% |
| 2010 | 2010-12-31 | 42.3M | 505,996 | +1.21% |
| 2009 | 2009-12-31 | 41.8M | — | — |
Alnylam Pharmaceuticals quarterly shares outstanding
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| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | 133.7M | 3.4M | +2.63% |
| Q4 2025 | 2025-12-31 | 132.4M | 3.1M | +2.38% |
| Q3 2025 | 2025-09-30 | 131.8M | 3.0M | +2.29% |
| Q2 2025 | 2025-06-30 | 131.0M | 3.0M | +2.31% |
| Q1 2025 | 2025-03-31 | 130.3M | 3.8M | +3.04% |
| Q4 2024 | 2024-12-31 | 129.3M | 3.5M | +2.78% |
| Q3 2024 | 2024-09-30 | 128.8M | 3.4M | +2.70% |
| Q2 2024 | 2024-06-30 | 128.0M | 3.1M | +2.50% |
| Q1 2024 | 2024-03-31 | 126.5M | 2.2M | +1.79% |
| Q4 2023 | 2023-12-31 | 125.8M | 1.9M | +1.51% |
| Q3 2023 | 2023-09-30 | 125.5M | 2.5M | +2.00% |
| Q2 2023 | 2023-06-30 | 124.9M | 3.9M | +3.23% |
| Q1 2023 | 2023-03-31 | 124.2M | 3.5M | +2.91% |
| Q4 2022 | 2022-12-31 | 123.9M | 3.7M | +3.11% |
| Q3 2022 | 2022-09-30 | 123.0M | 3.5M | +2.94% |
| Q2 2022 | 2022-06-30 | 121.0M | 2.4M | +2.02% |
| Q1 2022 | 2022-03-31 | 120.7M | 3.4M | +2.90% |
| Q4 2021 | 2021-12-31 | 120.2M | 3.8M | +3.23% |
| Q3 2021 | 2021-09-30 | 119.5M | 3.3M | +2.87% |
| Q2 2021 | 2021-06-30 | 118.6M | 2.9M | +2.55% |
| Q1 2021 | 2021-03-31 | 117.3M | 4.2M | +3.67% |
| Q4 2020 | 2020-12-31 | 116.4M | 4.2M | +3.78% |
| Q3 2020 | 2020-09-30 | 116.1M | 4.8M | +4.33% |
| Q2 2020 | 2020-06-30 | 115.6M | 4.5M | +4.08% |
| Q1 2020 | 2020-03-31 | 113.2M | 6.8M | +6.36% |
| Q4 2019 | 2019-12-31 | 112.2M | 11.0M | +10.88% |
| Q3 2019 | 2019-09-30 | 111.3M | 10.4M | +10.26% |
| Q2 2019 | 2019-06-30 | 111.1M | 10.5M | +10.49% |
| Q1 2019 | 2019-03-31 | 106.4M | 5.9M | +5.90% |
| Q4 2018 | 2018-12-31 | 101.2M | 1.5M | +1.52% |
| Q3 2018 | 2018-09-30 | 101.0M | 8.6M | +9.31% |
| Q2 2018 | 2018-06-30 | 100.6M | 8.9M | +9.67% |
| Q1 2018 | 2018-03-31 | 100.5M | 14.4M | +16.73% |
| Q4 2017 | 2017-12-31 | 99.7M | 13.7M | +15.97% |
| Q3 2017 | 2017-09-30 | 92.4M | 6.6M | +7.70% |
| Q2 2017 | 2017-06-30 | 91.7M | 6.1M | +7.16% |
| Q1 2017 | 2017-03-31 | 86.1M | 604,828 | +0.71% |
| Q4 2016 | 2016-12-31 | 85.9M | 850,376 | +1.00% |
| Q3 2016 | 2016-09-30 | 85.8M | 1.1M | +1.25% |
| Q2 2016 | 2016-06-30 | 85.6M | 1.0M | +1.23% |
| Q1 2016 | 2016-03-31 | 85.5M | 1.2M | +1.48% |
| Q4 2015 | 2015-12-31 | 85.1M | 7.9M | +10.22% |
| Q3 2015 | 2015-09-30 | 84.7M | 8.0M | +10.47% |
| Q2 2015 | 2015-06-30 | 84.5M | 8.2M | +10.76% |
| Q1 2015 | 2015-03-31 | 84.2M | 8.7M | +11.56% |
| Q4 2014 | 2014-12-31 | 77.2M | 13.5M | +21.12% |
| Q3 2014 | 2014-09-30 | 76.7M | 13.4M | +21.25% |
| Q2 2014 | 2014-06-30 | 76.3M | 13.9M | +22.20% |
| Q1 2014 | 2014-03-31 | 75.5M | 13.4M | +21.49% |
| Q4 2013 | 2013-12-31 | 63.7M | 11.3M | +21.44% |
| Q3 2013 | 2013-09-30 | 63.2M | 10.9M | +20.73% |
| Q2 2013 | 2013-06-30 | 62.5M | 10.5M | +20.12% |
| Q1 2013 | 2013-03-31 | 62.1M | 10.2M | +19.73% |
| Q4 2012 | 2012-12-31 | 52.5M | 9.8M | +22.86% |
| Q3 2012 | 2012-09-30 | 52.4M | 9.7M | +22.70% |
| Q2 2012 | 2012-06-30 | 52.0M | 9.3M | +21.90% |
| Q1 2012 | 2012-03-31 | 51.9M | 9.5M | +22.51% |
| Q4 2011 | 2011-12-31 | 42.7M | 378,519 | +0.89% |
| Q3 2011 | 2011-09-30 | 42.7M | 527,559 | +1.25% |
| Q2 2011 | 2011-06-30 | 42.7M | 557,184 | +1.32% |
| Q1 2011 | 2011-03-31 | 42.4M | 521,835 | +1.25% |
| Q4 2010 | 2010-12-31 | 42.3M | — | — |
| Q3 2010 | 2010-09-30 | 42.2M | — | — |
| Q2 2010 | 2010-06-30 | 42.1M | — | — |
| Q4 2009 | 2009-12-31 | 41.8M | — | — |
Alnylam Pharmaceuticals shares outstanding trends
Over the last five reported fiscal years, Alnylam Pharmaceuticals's shares outstanding moved from 116.4M to 132.4M, a change of 15.9M. The latest reported quarter, Q2 2026, shows 133.7M.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when SEC-reported stock-split conversion ratios are available. Values remain as reported when no split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Alnylam Pharmaceuticals filings at SEC.gov ↗