Employee Count History - Arrowhead Pharmaceuticals, Inc.
Historical employee count data from SEC filings.
Workforce Trend Analysis
Employee Count History
SEC Filing History
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| Filing Date | Period | Employee Count | Form Type | YoY Change |
|---|---|---|---|---|
| Nov 25, 2025 | Sep 30, 2025 | 711 | 10-K | +16.75% |
| Nov 26, 2024 | Sep 30, 2024 | 609 | 10-K | +16.00% |
| Nov 29, 2023 | Sep 30, 2023 | 525 | 10-K | +32.24% |
| Nov 28, 2022 | Sep 30, 2022 | 397 | 10-K | +20.67% |
| Nov 22, 2021 | Sep 30, 2021 | 329 | 10-K | +41.81% |
| Nov 23, 2020 | Sep 30, 2020 | 232 | 10-K | +73.13% |
Nov 25, 2019 | Sep 30, 2019 | — | — | — |
Dec 11, 2018 | Sep 30, 2018 | — | — | — |
Dec 12, 2017 | Sep 30, 2017 | — | — | — |
Dec 14, 2016 | Sep 30, 2016 | — | — | — |
Dec 14, 2015 | Sep 30, 2015 | — | — | — |
Nov 25, 2014 | Sep 30, 2014 | — | — | — |
Dec 18, 2013 | Sep 30, 2013 | — | — | — |
Dec 28, 2012 | Sep 30, 2012 | — | — | — |
Dec 20, 2011 | Sep 30, 2011 | — | — | — |
Dec 22, 2010 | Sep 30, 2010 | — | — | — |
Dec 22, 2009 | Sep 30, 2009 | — | — | — |
Dec 15, 2008 | Sep 30, 2008 | — | — | — |
Dec 14, 2007 | Sep 30, 2007 | — | — | — |
Dec 14, 2006 | Sep 30, 2006 | — | — | — |