Post-Effective Amendment to Post-Effective Amendment by Investment Company (Form 485BXT)

As filed with the Securities and Exchange Commission June 15, 2022

File Nos. 002-67052 and 811-03023

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM N-1A

REGISTRATION STATEMENT UNDER THE

SECURITIES ACT OF 1933

Post-Effective Amendment No. 706

AND

REGISTRATION STATEMENT UNDER THE

INVESTMENT COMPANY ACT OF 1940

Amendment No. 707

_____________________________________________________________________________________________

FORUM FUNDS

Three Canal Plaza, Suite 600

Portland, Maine 04101

207-347-2000

Stacy L. Fuller, Esq.
K&L Gates LLP
1601 K Street, N.W.
Washington, D.C. 20006

Copies to:

Zachary Tackett

Apex Fund Services

Three Canal Plaza, Suite 600

Portland, ME 04101

It is proposed that this filing will become effective:

[ ]immediately upon filing pursuant to Rule 485, paragraph (b)(1)

[ X ] on June 30, 2022 pursuant to Rule 485, paragraph (b)(1)

[ ] 60 days after filing pursuant to Rule 485, paragraph (a)(1)

[ ] on , pursuant to Rule 485, paragraph (a)(1)

[ ] 75 days after filing pursuant to Rule 485, paragraph (a)(2)

[ ] on _____________, pursuant to Rule 485, paragraph (a)(2)

[ X ] this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

FORUM FUNDS

CONTENTS OF REGISTRATION STATEMENT

This registration statement is comprised of the following:

Cover Sheet

Contents of Registration Statement

Part A: The Prospectus for the Absolute Convertible Opportunities Fund is incorporated herein by reference to Post-Effective Amendment No. 701 to the Registrant's Registration Statement on Form N-1A, as filed with the Securities and Exchange Commission on March 23, 2022, accession number 0001398344-22-006190 ("PEA No. 701").

Part B: The Statement of Additional Information for the Absolute Convertible Opportunities Fund is incorporated herein by reference to PEA No. 701.

Part C: Incorporated herein by reference to PEA No. 701.

Signature Page

Explanatory Note

This Post-Effective Amendment No. 706 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 June 30, 2022, the effectiveness of the registration statement for the Absolute Convertible Opportunities Fund, filed in Post-Effective Amendment No. 701 on March 23, 2022, pursuant to paragraph (a) of Rule 485 of the 1933 Act. No other series of the Registrant is affected by the filing.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended (the "Securities Act"), and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all requirements for effectiveness of this registration statement under Rule 485(b) of the Securities Act and has duly caused this amendment to its registration statement on Form N-1A to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Portland, and State of Maine on June 15, 2022.

Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed below by the following persons in the capacities indicated on June 15, 2022.

* Pursuant to powers of attorney previously filed.