# EDGAR Filing Document

**Accession Number:** 0000311635
**File Stem:** 0000930413-26-001635
**Filing Date:** 2026-5
**Character Count:** 10837
**Document Hash:** bc223d5f0e301963ccb6ef2a185f03d1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000930413-26-001635.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0000930413-26-001635

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**EFFECTIVENESS DATE**: 20260515

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LORD ABBETT US GOV & GOV SPONSORED ENTERPR MONEY MARKET FUND
- **CENTRAL INDEX KEY:** 0000311635

**ORGANIZATION NAME:**
- **EIN:** 132986729
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-64536
- **FILM NUMBER:** 26983154

**BUSINESS ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
- **BUSINESS PHONE:** 201-827-2000

**MAIL ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LORD ABBETT U S GOVERNMENT SECURITIES MONEY MARKET FUND INC
- **DATE OF NAME CHANGE:** 19970312

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LORD ABBETT CASH RESERVE FUND INC
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### LORD ABBETT US GOV & GOV SPONSORED ENTERPR MONEY MARKET FUND (Series ID: S000006869)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class I    | LAYXX         | C000018564 |
| Class A    | LACXX         | C000018565 |
| Class C    | LCCXX         | C000018567 |

---

## Series and Classes Contracts Data

### LORD ABBETT US GOV & GOV SPONSORED ENTERPR MONEY MARKET FUND (Series ID: S000006869)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018564 | Class I      | LAYXX           |
| C000018565 | Class A      | LACXX           |
| C000018567 | Class C      | LCCXX           |

**LORD ABBETT U.S. GOVERNMENT & GOVERNMENT SPONSORED<br> ENTERPRISES MONEY MARKET FUND, INC.**

**Supplement dated May 15, 2026 to the<br> Prospectus dated November 1, 2025, as supplemented**

Effective October 1, 2026, the following section replaces the section of the prospectus titled "Information for Managing Your Fund Account—Redemptions":

**REDEMPTIONS**

You may redeem your Fund shares by contacting your investment professional or financial intermediary. For shareholders investing through retirement and benefit plans or fee-based programs, you should contact the financial intermediary that administers your plan or sponsors the fee-based program to redeem your shares. You may be required to provide the Fund with certain legal or other documents completed in good order before your redemption request will be processed.

If you have direct account privileges with the Fund, you may redeem your Fund shares by:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· **Telephone.** You may redeem $100,000 or less from
your account by telephone. You or your representative should call the Fund at 888-522-2388.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· **Online.** You may submit a request online to redeem
your Fund shares by accessing your account online. Please log onto www.lordabbett.com and enter your account information and personal
identification data.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· **Mail.** You may submit a written request to redeem
your Fund shares by indicating the name(s) in which the account is registered, the Fund's name, your account number, and the dollar
amount or number of shares you wish to redeem. If submitting a written request to redeem your shares, your redemption will not be
processed until the Fund receives the request in good order at Lord Abbett Funds Service Center, P.O. Box 534489, Pittsburgh, PA
15253-4489 (regular mail) or Attention: 534489, 1350 Penn Avenue, Suite 102, Pittsburgh, PA 15222 (overnight mail).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· **Redemptions by Wire.** In order to receive the
proceeds of redemptions by wire, the Fund's transfer agent must have the wiring instructions on file. To verify that this feature
is in place, call 888-522-2388. Minimum wire amount for redemptions is $1,000. Your wire redemption request must be received by the Fund
before the close of the New York Stock Exchange ("NYSE") for money to be wired on the next business day (or
thereafter as permitted by law).

**Insufficient Account Value.** If you request a redemption transaction for a specific amount and your account value at the time the transaction is processed is less than the requested redemption amount, the Fund will deem your request as a request to liquidate your entire account.

**Redemption Payments.** Redemptions of Fund shares are executed at the NAV next determined after the Fund or your financial intermediary receives your request in good order. Normally, redemption proceeds are paid within three (but no more than seven) days after your redemption request is received in good order. If you redeem shares that were recently purchased, the Fund may delay the payment of the redemption proceeds until your check, bank draft, electronic funds transfer or wire transfer has cleared, which may take several days. This process may take up to 15 calendar days for purchases by check to clear. The Fund may postpone payment for more than seven days or suspend redemptions (i) during any

period that the NYSE is closed, or trading on the NYSE is restricted as determined by the SEC; (ii) during any period when an emergency exists as determined by the SEC as a result of whichnit is not practicable for the Fund to dispose of securities it owns, or fairly to determine the value of its assets; and/or (iii) for such other periods as the SEC may permit. As a money market fund, the Fund may permanently suspend redemptions in connection with a liquidation of the Fund.

If you have direct account access privileges, the redemption proceeds will be paid by electronic transfer via an automated clearing house deposit to your bank account on record with the Fund. If there is no bank account on record, your redemption proceeds normally will be paid by check payable to the registered account owner(s) and mailed to the address to which the account is registered.

You may request that your redemption proceeds of at least $1,000 be disbursed by wire to your bank account of record by contacting the Fund and requesting the redemption and wire transfer and providing the proper wiring instructions for your bank account of record.

The Fund generally will require that you provide a Medallion Signature Guarantee executed by an eligible issuer participating in the Securities Transfer Agents Medallion Program 2000 (STAMP2000) in the circumstances described below. You can obtain one from most banks or securities dealers. Please note that a notarized signature or signature guarantees from financial institutions that are not participating in STAMP2000 will not be accepted. A Medallion Signature Guarantee is designed to protect you from fraud.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· You request that redemption proceeds be made payable and
disbursed to a bank account that does not have one of the account owners in the account registration unless you previously provided a
Medallion Signature Guarantee for that bank account;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The request is signed by you in your legal capacity to sign
on behalf of another person or entity (i.e., on behalf of an estate);

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· You request a redemption check be mailed to an address not
currently on file or you had an address change within the last 30 days;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· You request redemption proceeds to be payable to a bank
account that is not currently on file or to a bank account of record that was added or changed within the last 30 days; for any purpose,
including purchases, redemptions, ACH transfers, or wire transfers;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The redemption proceeds total more than $100,000; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· The Fund or its service providers identify patterns that
raise concern about fraud or other activity that may be harmful to you.

Institutional investors eligible to purchase Class I shares may redeem shares in excess of $100,000 in accounts held directly with the Fund without a guaranteed signature, provided that the proceeds are payable to the bank account of record and the redemption request otherwise is in good order.

**Liquidity Management.** The Fund has implemented measures designed to enable it to pay redemption proceeds in a timely fashion while maintaining adequate liquidity. The Fund's portfolio management team continually monitors portfolio liquidity and adjusts the Fund's cash level based on portfolio composition, redemption rates, market conditions, and other relevant criteria. Under normal

circumstances, the Fund's portfolio management team may meet redemption requests and manage liquidity by selling portfolio securities. Under certain circumstances, including stressed market conditions, the Fund's portfolio management team may meet redemption requests and manage liquidity by (i) borrowing from a bank under a line of credit or from another Lord Abbett Fund (to the extent permitted under any SEC exemptive relief and the Fund's investment restrictions, in each case as stated in the Fund's SAI and/or prospectus, as applicable), (ii) transacting in exchange-traded funds and/or derivatives, or (iii) paying redemption proceeds in kind, as discussed below. Despite the Fund's reasonable best efforts, however, there can be no assurance that the Fund will manage liquidity successfully in all market environments. As a result, the Fund may not be able to pay redemption proceeds in a timely fashion because of unusual market conditions, an unusually high volume of redemption requests, or other factors.

**Redemptions in Kind.** The Fund reserves the right to pay redemption proceeds in whole or in part by distributing liquid securities from the Fund's portfolio. It is not expected that the Fund would pay redemptions by an in kind distribution except in unusual and/or stressed circumstances. If the Fund pays redemption proceeds by distributing securities in kind, you could incur brokerage or other charges, and tax liability, and you will bear market risks until the distributed securities are converted into cash.

You should note that your purchase, exchange, and redemption requests may be subject to review and verification on an ongoing basis.

*Capitalized terms used in this Supplement shall, unless otherwise defined herein, have the same meaning<br> as given in the Prospectus.*

***Please retain this document for your future reference.***