UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant [X] Filed by a Party Other Than the Registrant [ ] Check the Appropriate Box: [ ] Preliminary Proxy Statement [ ] Confidential for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [ ] Definitive Proxy Statement [X] Definitive Additional Materials [ ] Soliciting Material Pursuant to sec. 240.14a-11(c) of sec. 240.14a-12 MFS SERIES TRUST I MFS SERIES TRUST II MFS SERIES TRUST III MFS SERIES TRUST IV MFS SERIES TRUST V MFS SERIES TRUST VI MFS SERIES TRUST VIII MFS SERIES TRUST IX MFS SERIES TRUST X MFS SERIES TRUST XI MFS SERIES TRUST XII MFS SERIES TRUST XIII MASSACHUSETTS INVESTORS GROWTH STOCK FUND MASSACHUSETTS INVESTORS TRUST (Names of Registrants as Specified in their Charters) (Name of Person(s) Filing Proxy Statement, if other than the Registrants) Payment of Filing Fee (Check the Appropropriate Box): [X] No fee required [ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11. 1) Title of each class of securities to which transaction applies: 2) Aggregate number of securities to which transaction applies: 3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined): 4) Proposed maximum aggregate value of transaction: 5) Total Fee Paid: [ ] Fee paid previously with preliminary materials. [ ] Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. 1) Amount previously paid: 2) Form, Schedule or Registration Statement No.: 3) Filing Party: 4) Date Filed: [MFS LOGO] Recently we sent you proxy materials regarding the Special Meeting of Class R1 Shareholders of the MFS Funds referenced on the reverse page (each a "Fund"). Our records indicate that we have not received your important vote. We urge you to act promptly in order to allow us to obtain a sufficient number of votes to hold the Meeting and avoid the possibility of an adjournment. EVERY VOTE COUNTS You may think your vote is not important, but your participation is critical to hold the meeting, so please vote immediately. Any additional solicitations are costly and time-consuming. We urge you to vote your proxy now. You and all other shareholders will benefit from your cooperation. EACH FUND'S BOARD OF TRUSTEES UNANIMOUSLY RECOMMENDS THAT YOU VOTE IN FAVOR OF THE PROPOSAL AND BELIEVES THE PROPOSAL IS IN THE BEST INTEREST OF EACH FUND'S SHAREHOLDERS. 1-866-414-6353 Please vote now to be sure your vote is received in time for the February 15, 2008 Special Meeting of Shareholders. Thank you for your participation. MFS has made it very easy for you to vote. Choose one of the following methods: o Speak to a Proxy Specialist by calling the number above. We can answer any of your proxy related questions and record your vote. (Open: M-F 9:30am - 9pm, Sat 10am - 6pm ET) o Log on to the website noted on your proxy card, enter the control number printed on the card, and vote by following the on-screen prompts. o Dial the toll-free phone number on the proxy card, enter the control number printed on the card and follow the touchtone prompts. o Mail in your signed proxy card in the envelope provided. Voting takes only a few minutes. PLEASE VOTE TODAY. (If you have recently voted, please disregard this notice.) MFS Series Trust I (File Nos. 33-7638 and 811-4777) - ------------------ MFS Cash Reserve Fund MFS Core Equity Fund MFS Core Growth Fund MFS New Discovery Fund MFS Research International Fund MFS Technology Fund MFS Value Fund MFS Series Trust II (File Nos. 33-7637 and 811-4775) - ------------------- MFS Emerging Growth Fund MFS Series Trust III (File Nos. 2-60491 and 811-2794) - -------------------- MFS High Income Fund MFS Series Trust IV (File Nos. 2-54607 and 811-2594) - ------------------- MFS Mid Cap Growth Fund MFS Series Trust V (File Nos. 2-38613 and 811-2031) - ------------------ MFS International New Discovery Fund MFS Research Fund MFS Total Return Fund MFS Series Trust VI (File Nos. 33-34502 and 811-6102) - ------------------- MFS Global Equity Fund MFS Global Total Return Fund MFS Utilities Fund MFS Series Trust VIII (File Nos. 33-37972 and 811-5262) - --------------------- MFS Global Growth Fund MFS Series Trust IX (File Nos. 2-50409 and 811-2464) - ------------------- MFS Bond Fund MFS Inflation-Adjusted Bond Fund MFS Limited Maturity Fund MFS Research Bond Fund MFS Series Trust X (File Nos. 33-1657 and 811-4492) - ------------------ MFS Aggressive Growth Allocation Fund MFS Conservative Allocation Fund MFS Growth Allocation Fund MFS International Diversification Fund MFS Moderate Allocation Fund MFS New Endeavor Fund MFS Strategic Value Fund MFS Series Trust XI (File Nos. 33-68310 and 811-7992) - ------------------- MFS Mid Cap Value Fund MFS Series Trust XII (File Nos. 333-126328 and 811-21780) - ------------------ MFS Lifetime Retirement Income Fund MFS Lifetime 2010 Fund MFS Lifetime 2020 Fund MFS Lifetime 2030 Fund MFS Lifetime 2040 Fund MFS Series Trust XIII (File Nos. 2-74959 and 811-3327) - --------------------- MFS Government Securities Fund Massachusetts Investors Growth Stock Fund (File Nos. 2-14677 and 811-00859) Massachusetts Investors Trust (File Nos. 2-11401 and 811-00203) MFSFED