# EDGAR Filing Document

**Accession Number:** 0002035632
**File Stem:** 0001193125-25-211399
**Filing Date:** 2025-9
**Character Count:** 8097
**Document Hash:** bcf6f0a7ac759f9e0e8ec7d6979bb69e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-211399.hdr.sgml**: 20250922

**ACCESSION NUMBER**: 0001193125-25-211399

**CONFORMED SUBMISSION TYPE**: 424B3

**PUBLIC DOCUMENT COUNT**: 11

**FILED AS OF DATE**: 20250922

**DATE AS OF CHANGE**: 20250922

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** John Hancock CQS Asset Backed Securities Fund
- **CENTRAL INDEX KEY:** 0002035632

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

**FILING VALUES:**
- **FORM TYPE:** 424B3
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-282489
- **FILM NUMBER:** 251330465

**BUSINESS ADDRESS:**
- **STREET 1:** C/O JOHN HANCOCK
- **STREET 2:** 200 BERKELEY STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 617 663 3000

**MAIL ADDRESS:**
- **STREET 1:** C/O JOHN HANCOCK
- **STREET 2:** 200 BERKELEY STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** John Hancock Asset Backed Securities Fund
- **DATE OF NAME CHANGE:** 20240828

?xml version='1.0' encoding='ASCII'? John Hancock CQS Asset Backed Securities Fund

![](g165285g1jhim_fcv.jpg)

Prospectus Supplement

John Hancock CQS Asset Backed Securities Fund (the fund)

Supplement dated September 22, 2025 to the current Prospectus, as may be supplemented (the Prospectus)

Effective immediately, the disclosure under the sub-section titled "Co-Investment" of the "PROSPECTUS SUMMARY" section of the Prospectus is

amended and restated as follows:

The fund relies on an exemptive order from the SEC that permits it to, among other things, coinvest with other funds managed by the Advisor or its

affiliates, subject to certain terms and conditions.

Effective October 1, 2025 (the Effective Date), the disclosure under the sub-section titled "Potential Consequences of Periodic Repurchase Offers" of

the "RISK FACTORS" section of the Prospectus is amended and restated as follows:

The fund is a closed-end investment company structured as an "interval fund" and is designed for long-term investors. There is no secondary market

for the Shares and the fund expects that no secondary market will develop. In order to provide liquidity to Shareholders, the fund, subject to

applicable law, conducts regular repurchase offers of its outstanding Shares at NAV per share. Repurchases generally will be funded from available

cash or sales of portfolio securities. However, if at any time cash and other liquid assets held by the fund are not sufficient to meet the fund's

repurchase obligations, the fund may, if necessary, sell investments. The sale of securities to fund repurchases could reduce the market price of

those securities, which in turn would reduce the fund's NAV per share. The fund is also permitted to borrow up to the maximum extent permitted

under the 1940 Act to meet such repurchase obligations. The fund does not currently intend to borrow to finance repurchases, although it may

invest in dollar rolls. Moreover, a reduction in the size of the fund through repurchases may result in untimely sales of portfolio securities, may

increase the fund's portfolio turnover, and may limit the ability of the fund to participate in new investment opportunities or to achieve its investment

objective. If a repurchase offer is oversubscribed, the fund will repurchase the Shares tendered on a pro rata basis, and Shareholders will have to

wait until the next repurchase offer to make another repurchase request. As a result, Shareholders may be unable to liquidate all or a given

percentage of their investment in the fund during a particular repurchase offer. Shares tendered for repurchase by Shareholders who own less than

one hundred Shares and who tender all of their Shares are not subject to proration. A Shareholder may be subject to market and other risks, and the

NAV per share of Shares tendered in a repurchase offer may decline between the Repurchase Request Deadline (as defined herein) and the date on

which the NAV per share for tendered Shares is determined. In addition, to the extent the fund sells portfolio holdings in order to fund repurchase

requests, the repurchase of Shares by the fund will be a taxable event for the Shareholders of repurchased Shares, and potentially even for

Shareholders that do not participate in the repurchase offer.

In addition, effective immediately, the second paragraph under the section of the Prospectus titled "PERIODIC REPURCHASE OFFERS" is amended and

restated as follows:

The fund has adopted, pursuant to Rule 23c-3 under the 1940 Act, a fundamental policy, which cannot be changed without Shareholder approval,

requiring the fund to offer to repurchase at least 5% and not more than 25% of its Shares at NAV per share on a regular quarterly schedule. Although

the policy permits repurchase of between 5% and 25% of the fund's outstanding Shares at NAV per Share, for each quarterly repurchase offer, the

fund currently expects to offer to repurchase 10% of the fund's outstanding Shares at NAV subject to approval of the Board. The schedule requires

the fund to make repurchase offers every three months.

Finally, as of the Effective Date, the disclosure under the sub-section titled "Oversubscribed Repurchase Offers" of the "PERIODIC REPURCHASE

OFFERS" section of the Prospectus is amended and restated as follows:

There is no minimum number of Shares that must be tendered before the fund will honor repurchase requests. However, the fund's Trustees set for

each repurchase offer a maximum percentage of Shares that may be repurchased by the fund. In the event a repurchase offer by the fund is

oversubscribed, the fund may repurchase, but is not required to repurchase, additional Shares up to a maximum amount of 2% of the outstanding

Shares of the fund. If the fund determines not to repurchase additional Shares beyond the repurchase offer amount, or if Shareholders tender an

amount of Shares greater than that which the fund is entitled to repurchase, the fund will repurchase the Shares tendered on a pro rata basis. Shares

tendered for repurchase by Shareholders who own less than one hundred Shares and who tender all of their Shares are not subject to proration. The

fund does not currently expect to offer to repurchase additional Shares in the event a repurchase offer is oversubscribed.

Subject to the requirements of Rule 23c-3 under the 1940 Act, if during any consecutive 24-month period, the fund does not engage in a repurchase

offer in which the fund accepts 100% of properly tendered shares (a "Qualifying Tender"), the fund will not make any new investments (excluding

Manulife, Manulife Investments, Stylized M Design, and Manulife Investments & Stylized M Design are trademarks of The Manufacturers Life Insurance Company and John

Hancock, and the Stylized John Hancock Design are trademarks of John Hancock Life Insurance Company (U.S.A.). Each are used by it and by its affiliates under license.

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short-term cash management investments under thirty (30) days in duration) and the fund will reserve all available investable assets to satisfy future

tender requests until a Qualifying Tender occurs.

If any Shares that you wish to tender to the fund are not repurchased because of proration, you will have to wait until the next repurchase offer and

resubmit a new repurchase request, and your repurchase request will not be given any priority over other Shareholders' requests. Thus, there is a

risk that the fund may not purchase all of the Shares you wish to have repurchased in a given repurchase offer or in any subsequent repurchase offer.

In anticipation of the possibility of proration, some Shareholders may tender more Shares than they wish to have repurchased in a particular quarter,

increasing the likelihood of proration.

There is no assurance that you will be able to tender your Shares when or in the amount that you desire.

You should read this supplement in conjunction with the Prospectus and retain it for your future reference.

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