# EDGAR Filing Document

**Accession Number:** 0000806564
**File Stem:** 9999999997-26-000884
**Filing Date:** 2026-5
**Character Count:** 1403
**Document Hash:** 09401cd542d6612d5c3e4a25f2a6d9de
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999997-26-000884.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 9999999997-26-000884

**CONFORMED SUBMISSION TYPE**: N-8F NTC

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**ACTION DATE**: 20260513

**RECEIVED DATE**: 20260521

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MORGAN STANLEY MORTGAGE SECURITIES TRUST
- **CENTRAL INDEX KEY:** 0000806564

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** N-8F NTC
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-04917
- **FILM NUMBER:** 261007645

**BUSINESS ADDRESS:**
- **STREET 1:** 1585 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036
- **BUSINESS PHONE:** 800-869-6397

**MAIL ADDRESS:**
- **STREET 1:** 1585 BROADWAY
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10036

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MORGAN STANLEY FEDERAL SECURITIES TRUST
- **DATE OF NAME CHANGE:** 20010618

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MORGAN STANLEY DEAN WITTER FEDERAL SECURITIES TRUST
- **DATE OF NAME CHANGE:** 19980622

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WITTER DEAN FEDERAL SECURITIES TRUST
- **DATE OF NAME CHANGE:** 19930210

### Attached PDF Documents

**Attachment 1:** `filename1`

_No text found in this document._