As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 2/28/24‡ Morgan Stanley Mtge Secs Trust    497K        2/28/24    1:297K                                   Broadridge Fin’l… Inc/FA 
          → Morgan Stanley Mortgage Securities Trust
 2/28/24‡ Morgan Stanley Mtge Secs Trust    485BPOS     2/28/24   15:5.3M                                   Broadridge Fin’l… Inc/FA 
          → Morgan Stanley Mortgage Securities Trust

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‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:
	485BPOS	Post-Effective Amendment of a Form N-1 or N-1A Registration.
	497K	Prospectus – Open-End Investment Company – Summary.
→	Fund / Series:  Fund or Series of this Filer with a Class or Contract that this Filing pertains to.