Performance data shown represents past performance and is no guarantee of future results. Past performance is net of management fees and expenses and reflects reinvested dividends and distributions. Past performance reflects the beneficial effect of any expense waivers or reimbursements, without which returns would have been lower. Investment returns and principal value will fluctuate and when redeemed may be worth more or less than their original cost. Returns for periods less than one year are not annualized. Current performance may be higher or lower and is available through the most recent month end at harborfunds.com or by calling 800-422-1050.

From time to time, certain fees and/or expenses have been voluntarily or contractually waived or reimbursed, which has resulted in higher returns. Without these waivers or reimbursements, the returns would have been lower. Voluntary waivers or reimbursements may be applied or discontinued at any time without notice. Only the Board of Trustees may modify or terminate contractual fee waivers or expense reimbursements.

There is no guarantee that the investment objective of the Fund will be achieved. Convertible securities generally tend to be of lower credit quality and the value of a convertible security generally increases and decreases with the value of the underlying common stock, but may also be sensitive to changes in interest rates. As interest rates rise, the values of convertible securities held by the Fund are likely to decrease and reduce the value of the Fund's portfolio. Credit risk is higher for the Fund because it invests primarily in convertible securities of companies with debt rated below investment grade. High yield investing poses additional credit risk related to lower-rated bonds.

The ICE BofA US Convertible Ex Mandatory Index is broadly representative of the U.S. convertible securities market, consisting of publicly traded issues, denominated in U.S. Dollars, of all credit qualities, and excluding mandatory (equity-linked) convertibles. This unmanaged index does not reflect fees and expenses and is not available for direct investment.