Harbor Ares Systematic High Yield ETF (SIHY)

Important Information

Effective February 3, 2026, the name of the fund’s subadvisor changed from BlueCove Limited to Ares Systematic Credit Limited. Effective March 1, 2026, the name of Harbor Scientific Alpha High‑Yield ETF changed to Harbor Ares Systematic High Yield ETF. These changes do not affect the fund’s investment objective, strategies, risks, fees, or portfolio management. Please see the Fund's Prospectus for additional information.

Investing involves risk, principal loss is possible. Unlike mutual funds, ETFs may trade at a premium or discount to their net asset value.

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 is the risk‑adjusted excess return of an investment relative to the return of a benchmark index.

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

The Morningstar Medalist Ratings are shown for funds that have received a rating of Gold, Silver, or Bronze. The funds shown without Medalist Ratings may not have received a Medalist Rating or may have received lower ratings.

The Morningstar Medalist Rating™ is the summary expression of Morningstar’s forward‑looking analysis of investment strategies as offered via specific vehicles using a rating scale of Gold, Silver, Bronze, Neutral, and Negative. The Medalist Ratings indicate which investments Morningstar believes are likely to outperform a relevant index or peer group average on a risk‑adjusted basis over time. Investment products are evaluated on three key pillars (People, Parent, and Process) which, when coupled with a fee assessment, forms the basis for Morningstar’s conviction in those products’ investment merits and determines the Medalist Rating they’re assigned. Pillar ratings take the form of Low, Below Average, Average, Above Average, and High. Pillars may be evaluated via an analyst’s qualitative assessment (either directly to a vehicle the analyst covers or indirectly when the pillar ratings of a covered vehicle are mapped to a related uncovered vehicle) or using algorithmic techniques. Vehicles are sorted by their expected performance into rating groups defined by their Morningstar Category and their active or passive status. When analysts directly cover a vehicle, they assign the three pillar ratings based on their qualitative assessment, subject to the oversight of the Analyst Rating Committee, and monitor and reevaluate them at least every 14 months. When the vehicles are covered either indirectly by analysts or by algorithm, the ratings are assigned monthly. For more detailed information about these ratings, including their methodology, please go to global.morningstar.com/managerdisclosures/.

The Morningstar Medalist Ratings are not statements of fact, nor are they credit or risk ratings. The Morningstar Medalist Rating (i) should not be used as the sole basis in evaluating an investment product, (ii) involves unknown risks and uncertainties which may cause expectations not to occur or to differ significantly from what was expected, (iii) are not guaranteed to be based on complete or accurate assumptions or models when determined algorithmically, (iv) involve the risk that the return target will not be met due to such things as unforeseen changes in management, technology, economic development, interest rate development, operating and/or material costs, competitive pressure, supervisory law, exchange rate, tax rates, exchange rate changes, and/or changes in political and social conditions, and (v) should not be considered an offer or solicitation to buy or sell the investment product. A change in the fundamental factors underlying the Morningstar Medalist Rating can mean that the rating is subsequently no longer accurate.

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