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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Apr. 30, 2021
Entity Registrant Name dei_EntityRegistrantName Investment Managers Series Trust
Entity Central Index Key dei_EntityCentralIndexKey 0001318342
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jul. 14, 2022
Document Effective Date dei_DocumentEffectiveDate Jul. 14, 2022
Prospectus Date rr_ProspectusDate Sep. 01, 2021
WCM Developing World Equity Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock

IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY

 

WCM Developing World Equity Fund

Investor Class Shares – WCMUX

Institutional Class Shares – WCMDX

 

WCM International Equity Fund

Investor Class Shares – WESGX

Institutional Class Shares – WCMMX

 

Each a series of Investment Managers Series Trust

 

Supplement dated July 14, 2022, to the

Prospectus dated September 1, 2021, as amended.

 

As previously communicated in a supplement dated June 24, 2022, effective June 30, 2022, each Fund’s name changed as noted below:

 

Prior Name New Name
WCM Sustainable Developing World Fund WCM Developing World Equity Fund
WCM Sustainable International Fund WCM International Equity Fund

 

Each Fund’s investment strategy currently includes a policy to invest at least 80% of the Fund’s net assets (including amounts borrowed for investment purposes) in equity securities of companies that satisfy the Fund’s environmental, social and governance (“ESG”) criteria (the “80% Policy”). Each Fund’s 80% Policy was adopted due to the inclusion of the term “Sustainable” in the Fund’s Prior Name, consistent with a rule under the Investment Company Act of 1940. As a result of the removal of the term “Sustainable” from each Fund’s name, the 80% Policy is no longer required with respect to either Fund. As a result, effective September 12, 2022, all references to the 80% Policy will be deleted from the Funds’ Prospectus. No other changes will be made to either Fund’s principal investment strategy or the investment process utilized by WCM Investment Management, LLC, the Funds’ advisor.

  

Please file this Supplement with your records.
WCM International Equity Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock

IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY

 

WCM Developing World Equity Fund

Investor Class Shares – WCMUX

Institutional Class Shares – WCMDX

 

WCM International Equity Fund

Investor Class Shares – WESGX

Institutional Class Shares – WCMMX

 

Each a series of Investment Managers Series Trust

 

Supplement dated July 14, 2022, to the

Prospectus dated September 1, 2021, as amended.

 

As previously communicated in a supplement dated June 24, 2022, effective June 30, 2022, each Fund’s name changed as noted below:

 

Prior Name New Name
WCM Sustainable Developing World Fund WCM Developing World Equity Fund
WCM Sustainable International Fund WCM International Equity Fund

 

Each Fund’s investment strategy currently includes a policy to invest at least 80% of the Fund’s net assets (including amounts borrowed for investment purposes) in equity securities of companies that satisfy the Fund’s environmental, social and governance (“ESG”) criteria (the “80% Policy”). Each Fund’s 80% Policy was adopted due to the inclusion of the term “Sustainable” in the Fund’s Prior Name, consistent with a rule under the Investment Company Act of 1940. As a result of the removal of the term “Sustainable” from each Fund’s name, the 80% Policy is no longer required with respect to either Fund. As a result, effective September 12, 2022, all references to the 80% Policy will be deleted from the Funds’ Prospectus. No other changes will be made to either Fund’s principal investment strategy or the investment process utilized by WCM Investment Management, LLC, the Funds’ advisor.

  

Please file this Supplement with your records.