Form 485BXT ADVISORS SERIES TRUST

September 9, 2026 4:02 PM EDT

Filed with the U.S. Securities and Exchange Commission on September 9, 2026

1933 Act Registration File No. 333-17391
1940 Act File No. 811-07959

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

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933[X]
Pre-Effective Amendment No.[]
Post-Effective Amendment No.1204[X]
and
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940[X]
Amendment No.1206[X]

(Check appropriate box or boxes.)

ADVISORS SERIES TRUST
(Exact Name of Registrant as Specified in Charter)
 
615 East Michigan Street
Milwaukee, Wisconsin 53202
(Address of Principal Executive Offices) (Zip Code)

(Registrant’s Telephone Number, Including Area Code) (626) 914-7363
 
Jeffrey T. Rauman, President and Principal Executive Officer
Advisors Series Trust
c/o U.S. Bank Global Fund Services
777 East Wisconsin Avenue
Milwaukee, Wisconsin 53202
(Name and Address of Agent for Service) 
Copies to:

Rachael L. Schwartz, Esq.
Sullivan & Worcester LLP
1251 Avenue of the Americas, 19th Floor
New York, New York 10020
As soon as practical after the effective date of this Registration Statement
Approximate Date of Proposed Public Offering

It is proposed that this filing will become effective
☐immediately upon filing pursuant to paragraph (b)
☒
on September 14, 2026 pursuant to paragraph (b)
☐60 days after filing pursuant to paragraph (a)(1)
☐on __________ pursuant to paragraph (a)(1)
☐75 days after filing pursuant to paragraph (a)(2)
☐on __________ pursuant to paragraph (a)(2) of Rule 485.
If appropriate, check the following box
[X]    this post-effective amendment designates a new effective date for a previously filed post-effective amendment.





EXPLANATORY NOTE
Designation of New Effective Date for Previously Filed Amendment


Post-Effective Amendment No. 1199 (the “Amendment”) was filed pursuant to Rule 485(a)(2) under the Securities Act of 1933 on June 30, 2026, and pursuant to Rule 485(a)(2) would have become effective on September 13, 2026.

This Post-Effective Amendment No. 1204 is being filed pursuant to Rule 485(b)(1)(iii) for the sole purpose of designating September 14, 2026, as the new date upon which the Amendment shall become effective.

This Post-Effective Amendment No. 1204 incorporates by reference the information contained in Parts A, B and C of the Amendment.






SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 (the “Securities Act”) and the Investment Company Act of 1940, the Registrant certifies that this Post-Effective Amendment No. 1204 to its Registration Statement meets all of the requirements for effectiveness under Rule 485(b) and has duly caused this Post-Effective Amendment No. 1204 to its Registration Statement on Form N-1A to be signed on its behalf by the undersigned, duly authorized, in the City of Milwaukee and State of Wisconsin, on the 9th day of September, 2026.


Advisors Series Trust

By: /s/ Jeffrey T. Rauman    
Jeffrey T. Rauman
President and Principal Executive Officer

    Pursuant to the requirements of the Securities Act, this Post-Effective Amendment No. 1204 to its Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

SignatureTitleDate
David G. Mertens*TrusteeSeptember 9, 2026
David G. Mertens
Michele Rackey*TrusteeSeptember 9, 2026
Michele Rackey
Anne W. Kritzmire*TrusteeSeptember 9, 2026
Anne W. Kritzmire
Craig B. Wainscott*TrusteeSeptember 9, 2026
Craig B. Wainscott
/s/ Kevin J. HaydenTreasurer, Vice President and September 9, 2026
Kevin J. HaydenPrincipal Financial Officer
/s/ Jeffrey T. RaumanPresidentSeptember 9, 2026
Jeffrey T. Raumanand Principal Executive Officer
*By: /s/ Jeffrey T. Rauman
Jeffrey T. Rauman
Attorney-In Fact pursuant to
Power of Attorney



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