Normally investing at least 80% of assets in equity securities. Normally investing primarily in common stocks. Normally investing primarily in companies that currently pay, or have a historical record of paying, dividends. Investing in domestic and foreign issuers. Investing in either "growth" stocks or "value" stocks or both. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments. Effective December 11, 2025, normally investing at least 80% of assets in equity securities of dividend growth companies. Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. Dividend growth companies are companies that the Adviser believes have favorable prospects to pay and grow dividends over time. The Adviser considers a number of factors in determining whether a company is growing dividends, such as whether the company has positive trailing one-year, three-year, or five-year dividend growth per share, whether a company pays dividends and has a year-over-year decrease in shares outstanding due to share buybacks, or whether the company pays dividends and free cash flow is projected to grow. An issuer may be determined to be a dividend growth company under any of these factors. Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Proposed Reorganization.  The Board of Trustees of Fidelity Advisor Series I has unanimously approved an Agreement and Plan of Reorganization ("Agreement") between Fidelity Advisor ®  Dividend Growth Fund and Fidelity ® Dividend Growth Fund pursuant to which Fidelity Advisor ®  Dividend Growth Fund would be reorganized on a tax-free basis with and into Fidelity ® Dividend Growth Fund. As a result of the proposed Reorganization, shareholders of Fidelity Advisor ® Dividend Growth Fund would receive, respectively, corresponding shares of Fidelity ® Dividend Growth Fund. The Agreement provides for the transfer of all of the assets of Fidelity Advisor ® Dividend Growth Fund in exchange for corresponding shares of Fidelity ® Dividend Growth Fund equal in value to the net assets of Fidelity Advisor ® Dividend Growth Fund and the assumption by Fidelity ® Dividend Growth Fund of all of the liabilities of Fidelity Advisor ® Dividend Growth Fund. After the exchange, Fidelity Advisor ® Dividend Growth Fund will distribute the Fidelity ® Dividend Growth Fund shares to its shareholders pro rata, in liquidation of Fidelity Advisor ® Dividend Growth Fund. As a result, shareholders of Fidelity Advisor ® Dividend Growth Fund will become shareholders of Fidelity ® Dividend Growth Fund (these transactions are collectively referred to as the "Reorganization"). A Special Meeting (the "Meeting") of the Shareholders of Fidelity Advisor ® Dividend Growth Fund is expected to be held during the second quarter of 2025 and approval of the Agreement will be voted on at that time. A combined proxy statement and prospectus containing more information with respect to the Reorganization will be provided to shareholders of record of Fidelity Advisor ® Dividend Growth Fund in advance of the meeting. If the Agreement is approved at the Meeting and certain conditions required by the Agreement are satisfied, the Reorganization is expected to take place on or about June 6, 2025. If shareholder approval of the Agreement is delayed due to failure to meet a quorum or otherwise, the Reorganization will become effective, if approved, as soon as practicable thereafter. Effective after the close of business on the business day prior to the Reorganization, new positions in the fund may no longer be opened. Existing shareholders may continue to hold their shares and purchase additional shares through the reinvestment of dividend and capital gain distributions until the fund's Reorganization takes place. The foregoing is not a solicitation of any proxy. For a free copy of the Proxy Statement describing the Reorganization (and containing important information about fees, expenses and risk considerations) and a Prospectus for Fidelity ® Dividend Growth Fund please call 1-800-544-8544. The prospectus/proxy statement will also be available for free on the Securities and Exchange Commission's web site (www.sec.gov) .