Important Information

Investing involves risk, principal loss is possible. Unlike mutual funds, ETFs may trade at a premium or discount to their net asset value. Harbor ETFs are new and have limited operating history to judge.

Shares are bought and sold at market price not net asset value (NAV). Market price returns are based upon the closing composite market price and do not represent the returns you would receive if you traded shares at other times.

All investments involve risk including the possible loss of principal. Fixed income securities fluctuate in price in response to various factors, including changes in interest rates, changes in market conditions and issuer-specific events, and the value of your investment in the Fund may go down. There is a greater risk that the Fund will lose money because they invest in below- investment grade fixed income securities and unrated securities of similar credit quality (commonly referred to as “high-yield securities” or “junk bonds”). These securities are considered speculative because they have a higher risk of issuer default, are subject to greater price volatility and may be illiquid. Because the Fund may invest in securities of foreign issuers, an investment in the Fund is subject to special risks in addition to those of U.S. securities. These risks include heightened political and economic risks, greater volatility, currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, possible sanctions by government bodies of other countries and less stringent investor protection and disclosure standards of foreign markets.

Diversification does not assure a profit or protect against loss in a declining market.

Bid/Ask Mid Price: the midpoint between the highest bid and the lowest offer, as of the time that the Fund’s NAV is calculated, typically 4 p.m. Eastern Time.

Premium/Discount ($): the difference between the Fund’s market price and NAV, expressed as a percentage of NAV. A premium is the amount that the Fund is trading above the reported NAV. A discount is the amount that the Fund is trading below the reported NAV.

30-Day Median Bid/Ask Spread: calculated by identifying national best bid and national best offer ("NBBO") for each fund as of the end of each 10 second interval during each trading day of the last 30 calendar days and dividing the difference between each such bid and offer by the midpoint of the NBBO. The median of those values is identified and that value is expressed as a percentage (rounded to the nearest hundredth).

Alpha refers to excess returns earned on an investment.

Wtd. Avg. Market Coupon (%): the weighted average coupon rate of the underlying bonds in the Fund.

Wtd. Avg. Maturity (yrs): the weighted average length of time to the repayment of principal for the securities in the Fund. This metric considers the likelihood that bonds will be called or prepaid before the scheduled maturity date.

Wtd. Avg. Duration (yrs): the weight average duration of the underlying bonds or derivative market exposures in the Fund. Duration is a time measure of a bond's interest-rate sensitivity. The longer a fund's duration, the more sensitive the fund is to shifts in interest rates

For former Harbor High-Yield Bond Fund shareholders:

American Stock Transfer & Trust Company, LLC (AST) is Cypress Trust Company transfer agent and dividend disbursing agent.  AST's automated telephone support services are available 24 hours per day, seven days per week. 

AST may be contacted as follows:

• Mailing Address
  AST
  Attention:  Harbor Capital MF
  6201 15^th Avenue
  Brooklyn, NY  11219
• Telephone
  An AST shareholder services representative can be reached at (800) 937-5449 between the hours of 8 a.m. and 8 p.m. Eastern Time, Monday through Friday. An Interactive Voice Response System is available 24 hours a day, seven days a week.
• Website
  Shareholders can access information on AST's website at https://www.astfinancial.com/login

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