UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-A
FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
PURSUANT TO SECTION 12(b) or (g) OF
THE SECURITIES EXCHANGE ACT OF 1934
HARBOR ETF TRUST
(Exact name of Registrant as Specified in Charter)
State of Delaware
See Below
(State of incorporation or organization)
(I.R.S. Employer Identification No.)
111 South Wacker Drive, 34th Floor, Chicago, Illinois 60606
(Address of Principal Executive Offices) (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:
Title of Each Class to be so Registered
Name of each Exchange on which
Each Class is to be so Registered
I.R.S. Employer Identification Number
Harbor AlphaEdgeTM Mid Cap Core ETF
NYSE Arca, Inc.
42-2696822
Harbor AlphaEdgeTM Mid Cap Growth ETF
NYSE Arca, Inc.
42-2697004
Harbor AlphaEdgeTM Mid Cap Value ETF
NYSE Arca, Inc.
42-2697439
Harbor AlphaEdgeTM Small Cap Core ETF
NYSE Arca, Inc.
42-2700854
Harbor AlphaEdgeTM Small Cap Growth ETF
NYSE Arca, Inc.
42-2701201
Harbor AlphaEdgeTM Small Cap Value ETF
NYSE Arca, Inc.
42-2701270
If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒
If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐
If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement file number to which this form relates:
333-255884
Securities to be registered pursuant to Section 12(g) of the Act:
None




INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 1. Description of Registrant’s Securities to be Registered
A description of the shares of beneficial interest, no par value per share, of Harbor AlphaEdgeTM Mid Cap Core ETF, Harbor AlphaEdgeTM Mid Cap Growth ETF, Harbor AlphaEdgeTM Mid Cap Value ETF, Harbor AlphaEdgeTM Small Cap Core ETF, Harbor AlphaEdgeTM Small Cap Growth ETF, and Harbor AlphaEdgeTM Small Cap Value ETF, each a series of Harbor ETF Trust (the “Trust”), to be registered hereunder is set forth in Post-Effective Amendment No. 104 (Accession No. 0001193125-26-351358) filed on August 14, 2026, which description is incorporated herein by reference as filed with the Securities and Exchange Commission. Any form of amendment or supplement to the registration statement that is subsequently filed is hereby also incorporated by reference herein.
Item 2. Exhibits
 
1.
 
2.
 
3.
 
4.


SIGNATURE
Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized, as of August 14, 2026.
Harbor ETF Trust
By: /s/ Charles F. McCain
Charles F. McCain
President and Trustee