In order to download a statement of your full account history, including deposits, purchases, and withdrawals, please navigate to your Account Statement Page, which can be found under the "Settings" menu in your navigation bar.
From there, you can download your full monthly statement, withdrawal information, or deposits and purchasing information.
Note: If you are looking to report on your transactions for tax reporting purposes, you can download the tax-specific CSV from your dashboard and upload that to whatever tax-reporting software you desire.