As filed with the Securities and Exchange Commission on September 11, 2020 

                            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	x
Post-Effective Amendment No. 2,401	x
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 2,401	x

(Check appropriate box or boxes) 

iShares Trust 

(Exact Name of Registrant as Specified in Charter) 

c/o State Street Bank and Trust Company 

1 Lincoln Street 

Mail Stop SFC0805 

Boston, MA 02111 

(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.	DEEPA DAMRE, ESQ.
WILLKIE FARR & GALLAGHER LLP	BLACKROCK FUND  ADVISORS
787 SEVENTH AVENUE	400 HOWARD STREET
NEW YORK, NY 10019-6099	SAN FRANCISCO, CA 94105

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

¨     Immediately upon filing pursuant to paragraph (b)	x   On September 18, 2020, 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: 

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

Explanatory Note 

This Post-Effective Amendment No. 2,401 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 September 18, 2020, the effectiveness of the registration statement for the iShares ESG Screened S&P Mid-Cap ETF, filed in Post-Effective Amendment No. 2,377 on July 1, 2020, pursuant to paragraph (a) of Rule 485 of the 1933 Act. 

This Post-Effective Amendment No. 2,401 incorporates by reference the information contained in Parts A, B and C of Post-Effective Amendment No. 2,377.  

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. 2,401 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 11^th day of September, 2020. 

iShares Trust  

By:
	Armando Senra*
	President
	Date: September 11, 2020

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 2,401 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: September 11, 2020
	John E. Martinez*
	Trustee
	Date: September 11, 2020
	Cecilia H. Herbert*
	Trustee
	Date: September 11, 2020
	John E. Kerrigan*
	Trustee
	Date: September 11, 2020
	Robert S. Kapito*
	Trustee
	Date: September 11, 2020
	Madhav V. Rajan*
	Trustee
	Date: September 11, 2020
	Jane D. Carlin*
	Trustee
	Date: September 11, 2020
	Drew E. Lawton*
	Trustee
	Date: September 11, 2020
	Richard L. Fagnani*
	Trustee
	Date: September 11, 2020
	/s/ Trent W. Walker
	Trent W. Walker*
	Treasurer and Chief   Financial Officer
	Date: September 11, 2020
*By:	/s/ Trent W. Walker
	Trent W. Walker
	Attorney-in-fact
	Date:  September 11, 2020

*     Powers of Attorney, each dated January 1, 2020, 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. 2,257, filed January 9, 2020.