# EDGAR Filing Document

**Accession Number:** 0001998919
**File Stem:** 0001104659-25-067960
**Filing Date:** 2025-7
**Character Count:** 2653
**Document Hash:** 564c5a5c0d974bbd9b8daf4ef685990a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-067960.hdr.sgml**: 20250715

**ACCESSION NUMBER**: 0001104659-25-067960

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250715

**FILED AS OF DATE**: 20250715

**DATE AS OF CHANGE**: 20250715

**EFFECTIVENESS DATE**: 20250715

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Morgan Stanley Portfolios, Series 73
- **CENTRAL INDEX KEY:** 0001998919

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-279411
- **FILM NUMBER:** 251123266

**BUSINESS ADDRESS:**
- **STREET 1:** 2000 WESTCHESTER AVENUE
- **CITY:** PURCHASE
- **STATE:** NY
- **ZIP:** 10577
- **BUSINESS PHONE:** 9142251000

**MAIL ADDRESS:**
- **STREET 1:** 2000 WESTCHESTER AVENUE
- **CITY:** PURCHASE
- **STATE:** NY
- **ZIP:** 10577

NO SERIES-AND-CLASSES-CONTRACTS-DATA BLOCK FOUND

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0001998919

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** S-6

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** Morgan Stanley Portfolios, Series 73

- **Address:** 2000 Westchester Avenue, Purchase, NY 10577

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-22966

   **Securities Act File Number:** 333-279411

**4(a). Last day of fiscal year for which this Form is filed:** 07/15/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [x]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $51706274.54

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $874303.98

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $0.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $874303.98

- **(v) Net sales:** $50831970.56

- **(vi) Redemption credits available for use in future years:** $0.00

- **(vii) Multiplier for determining registration fee:** 0.000153100

- **(viii) Registration fee due:** $7782.37

**Signatures**

**Name and Title:** Michael B. Weiner, Executive Director

**Date:** 07/15/2025

**Signature:** /s/ MICHAEL B. WEINER