0001104659-26-052708.txt : 20260430 0001104659-26-052708.hdr.sgml : 20260430 20260430143940 ACCESSION NUMBER: 0001104659-26-052708 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20260430 DATE AS OF CHANGE: 20260430 EFFECTIVENESS DATE: 20260430 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MORGAN STANLEY INSTITUTIONAL LIQUIDITY FUNDS CENTRAL INDEX KEY: 0001227155 ORGANIZATION NAME: EIN: 000000000 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 333-104972 FILM NUMBER: 26923654 BUSINESS ADDRESS: STREET 1: 1585 BROADWAY CITY: NEW YORK STATE: NY ZIP: 10036 BUSINESS PHONE: 800-548-7786 MAIL ADDRESS: STREET 1: 1585 BROADWAY CITY: NEW YORK STATE: NY ZIP: 10036 0001227155 S000004148 Government Portfolio C000011654 Administrative Class MGOXX C000011655 Advisory Class MAYXX C000011656 Institutional Class MVRXX C000011657 Investor Class MVVXX C000011658 Participant Class MPCXX C000011659 Institutional Select Class MGSXX C000017907 Cash Management Class MSGXX C000167931 Select Class MSDXX C000227505 CastleOak Share Class COSXX C000234745 Impact Class IMPXX C000248673 Impact Partner Class IPGXX C000248991 Advisor Class MALXX C000263898 Institutional Plus Class MPXXX 0001227155 S000004149 Government Securities Portfolio C000011660 Administrative Class MGAXX C000011661 Advisory Class MVAXX C000011662 Institutional Class MUIXX C000011663 Investor Class MVIXX C000011664 Participant Class MGPXX C000011665 Institutional Select Class MSVXX C000017908 Cash Management Class MCHXX 0001227155 S000004151 Prime Portfolio C000011672 Administrative Class MPMXX C000011673 Advisory Class MAVXX C000011674 Institutional Class MPFXX C000011675 Participant Class MPNXX C000011676 Investor Class MPVXX C000011677 Institutional Select Class MPEXX C000017910 Cash Management Class MSPXX C000234746 Impact Class IMTXX C000238341 CastleOak Share Class CASXX C000248674 Impact Partner Class IPYXX 0001227155 S000004153 Treasury Portfolio C000011684 Administrative Class MTTXX C000011685 Advisory Class MAOXX C000011686 Institutional Class MISXX C000011687 Investor Class MTNXX C000011688 Participant Class MTCXX C000011689 Institutional Select Class MTSXX C000017912 Cash Management Class MREXX C000167932 Select Class MSTXX C000248994 Advisor Class MATXX C000263899 Institutional Plus Class MRXXX 0001227155 S000004154 Treasury Securities Portfolio C000011690 Administrative Class MAMXX C000011691 Advisory Class MVYXX C000011692 Institutional Class MSUXX C000011693 Investor Class MNVXX C000011694 Participant Class MPRXX C000011695 Institutional Select Class MSSXX C000017913 Cash Management Class MHSXX C000167933 Select Class MSEXX C000248675 Impact Class IMXXX C000248676 Impact Partner Class IPUXX C000251131 Advisor Class MAZXX C000263900 Institutional Plus Class MSXXX 497 1 tm2613118d8_497.htm 497 26-13118-8.ba

Statement of Additional Information Supplement

April 30, 2026

Morgan Stanley Institutional Liquidity Funds

Supplement dated April 30, 2026 to the Morgan Stanley Institutional Liquidity Funds Statement of Additional Information dated February 27, 2026

Government Portfolio

Government Securities Portfolio

Prime Portfolio

Treasury Portfolio

Treasury Securities Portfolio

Effective immediately, the table in the section of the Statement of Additional Information entitled "Disclosure of Portfolio Holdings" is hereby deleted and replaced with the following:

Name

  

Frequency1​

  

Lag Time

  

Service Providers

  

 

  

 

  

State Street Bank and
Trust Company

  

Daily basis
 

  

Daily
 

  

BlackRock Financial
Management Inc.

  

Daily basis
 

  

2​
 

  

KellyCo Marketing
 

  

As needed
 

  

Varying lag times after the date of
the information

  

Financial Recovery Technologies

  

Daily basis

  

Daily

  

Portfolio Analytics Providers

          

Bloomberg Finance, L.P.

  

Daily basis

  

2​

  

Abel Noser Solutions, LLC

  

Daily basis

  

Daily

  

1  Dissemination of portfolio holdings information to entities listed above may occur less frequently than indicated (or not at all).

2  Information will typically be provided on a real time basis or as soon thereafter as possible.

Please retain this supplement for future reference.