As filed with the Securities and Exchange Commission on March 2, 2023

File Nos. 333-92935 and 811-09729

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	☒
Post-Effective Amendment No. 2,623	☒
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	☒
Amendment No. 2,623	☒

(Check appropriate box or boxes)

iShares Trust

(Exact Name of Registrant as Specified in Charter)

c/o BlackRock Fund Advisors

400 Howard Street

San Francisco, CA 94105

(Address of Principal Executive Office)(Zip Code)

Registrant’s Telephone Number, including Area Code: (415) 670-2000

The Corporation Trust Company

1209 Orange Street

Wilmington, DE 19801

(Name and Address of Agent for Service)

With Copies to:

MARGERY K. NEALE, ESQ. BENJAMIN J. HASKIN, ESQ. ANNE C. CHOE, ESQ. WILLKIE FARR &
GALLAGHER LLP 787 SEVENTH AVENUE NEW YORK, NY 10019-6099 MARISA ROLLAND, ESQ. BLACKROCK FUND ADVISORS 400 HOWARD STREET SAN FRANCISCO, CA 94105

It is proposed that this filing will become effective (check appropriate box):

☐ Immediately upon filing pursuant to paragraph (b)

☒ On March 31, 2023, pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)(1)

☐ On (date) pursuant to paragraph (a)(1)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ On (date) pursuant to paragraph (a)(2)

If appropriate, check the following box:

☒ The post-effective amendment designates a new effective date for a previously filed post-effective amendment.

Explanatory Note

This Post-Effective Amendment No. 2,623 to the Registrant’s Registration Statement on Form N-1A is being filed pursuant to paragraph (b)(1)(iii) of Rule 485 of the Securities Act of 1933, as amended (the “1933 Act”), solely for the purpose of delaying, until March 31, 2023, the effectiveness of the registration statement for the iShares ESG Aware ICE-HIP Muni Bond ETF (the “Fund”), filed in Post-Effective Amendment No.  2,590 on September 30, 2022, pursuant to paragraph (a) of Rule 485 of the 1933 Act.

The effectiveness of the Registration Statement of the Fund was previously delayed pursuant to paragraph (b)(1)(iii) of Rule 485 of the 1933 Act as follows:

PEA No.	Date Filed	Automatic Effective Date
2,604 2,611 2,617	December 13, 2022 January 11, 2023 February 9, 2023	January 12, 2023 February 10, 2023 March 3, 2023

This Post-Effective Amendment No. 2,623 incorporates by reference the information contained in Parts A, B and C of Post-Effective Amendment No. 2,590.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all the requirements for the effectiveness of this Registration Statement pursuant to Rule 485(b)(1)(iii) of the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 2,623 to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of San Francisco and the State of California on the 2^nd day of March, 2023.

iSHARES TRUST 

By:
	Armando Senra*
	President
	Date: March 2, 2023

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 2,623 to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated.

By:
	Salim Ramji*
	Trustee
	Date: March 2, 2023
	John E. Martinez*
	Trustee
	Date: March 2, 2023
	Cecilia H. Herbert*
	Trustee
	Date: March 2, 2023
	John E. Kerrigan*
	Trustee
	Date: March 2, 2023
	Robert S. Kapito*
	Trustee
	Date: March 2, 2023

	Madhav V. Rajan*
	Trustee
	Date: March 2, 2023
	Jane D. Carlin*
	Trustee
	Date: March 2, 2023
	Drew E. Lawton*
	Trustee
	Date: March 2, 2023
	Richard L. Fagnani*
	Trustee
	Date: March 2, 2023
	/s/ Trent W. Walker
	Trent W. Walker*
	Treasurer and Chief Financial Officer
	Date: March 2, 2023
*By:	/s/ Trent W. Walker
	Trent W. Walker
	Attorney-in-fact
	Date: March 2, 2023

* Powers of Attorney, each dated June 15, 2022, for Armando Senra, Salim Ramji, Jane D. Carlin, Cecilia H. Herbert, John E. Kerrigan, John E. Martinez, Madhav V. Rajan, Robert S. Kapito, Drew E. Lawton, Richard L. Fagnani and Trent W. Walker are incorporated herein by reference to Post-Effective Amendment No. 2,556, filed June 27, 2022.