Insider filing report for Changes in Beneficial Ownership
- Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
- Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
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- Peter Lynch
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
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AMG BBH Asset-Backed Credit Fund, LLC (Name of Issuer) |
Class S Units of Beneficial Interest (Title of Class of Securities) |
03116N104 (CUSIP Number) |
Morgan, Lewis & Bockius LLP One Federal Street, Boston, MA, 02110 617-951-8000 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
07/01/2026 (Date of Event Which Requires Filing of This Statement) |
If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.


The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the
Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
SCHEDULE 13D
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| CUSIP No. | 03116N104 |
| 1 |
Name of reporting person
BROWN BROTHERS HARRIMAN & CO | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
AF, OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
NEW YORK
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
969,510.51 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
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| 13 | Percent of class represented by amount in Row (11)
40.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IA |
SCHEDULE 13D
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| CUSIP No. | 03116N104 |
| 1 |
Name of reporting person
BROWN BROTHERS HARRIMAN CREDIT PARTNERS, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
DELAWARE
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
354,720.47 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
![]() | ||||||||
| 13 | Percent of class represented by amount in Row (11)
15 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
BK, HC |
SCHEDULE 13D
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| Item 1. | Security and Issuer |
| (a) | Title of Class of Securities:
Class S Units of Beneficial Interest |
| (b) | Name of Issuer:
AMG BBH Asset-Backed Credit Fund, LLC |
| (c) | Address of Issuer's Principal Executive Offices:
680 Washington Boulevard, Suite 500, Stamford,
CONNECTICUT
, 06901. |
| Item 2. | Identity and Background |
| (a) | This Schedule 13D is being filed jointly by the following Reporting Persons (collectively, the "Reporting Persons"): - Brown Brothers Harriman & Co., a New York limited partnership ("BBH"); and - Brown Brothers Harriman Credit Partners, LLC, a Delaware limited liability company ("Credit Partners"). The securities reported herein with respect to BBH reflect (i) securities directly owned by Credit Partners and (ii) securities held for the accounts of certain discretionary client accounts (the "Client Accounts") for which BBH serves as a fiduciary. Credit Partners is a majority-owned subsidiary of BBH. As a result, BBH may be deemed to beneficially own the securities directly owned by Credit Partners. In addition, by virtue of its role with respect to the Client Accounts, BBH may also be deemed to beneficially own the securities held for the Client Accounts. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and the filing of this Schedule 13D shall not be construed as an admission that either Reporting Person is the beneficial owner of any such securities for purposes of Section 13(d) or Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. All information reported herein with respect to beneficial ownership is as of July 9, 2026, unless the context indicates otherwise. Credit Partners serves as the investment adviser to AMG BBH Asset-Backed Credit Fund, LLC (the "Issuer"). |
| (b) | The business address of each of the Reporting Persons is 140 Broadway, New York, New York 10005. |
| (c) | BBH is a financial institution that, among other things, provides banking, investment management and investor services to institutional and private wealth clients. Credit Partners is a registered investment adviser whose principal business is providing investment management services. |
| (d) | No Reporting Person has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). |
| (e) | No Reporting Person has, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding neither was nor is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or State securities laws or finding any violation with respect to such laws. |
| (f) | See Item 6 of the cover page of each Reporting Person. |
| Item 3. | Source and Amount of Funds or Other Consideration |
On May 20, 2026, June 23, 2026 and July 7, 2026, Credit Partners acquired 253,000.00, 56,024.4894, and 45,695.984 Class S Units of Beneficial Interest, respectively, from the Issuer for purchase prices of approximately $2,530,000, $560,000 and $456,306, respectively, in each case using working capital. On July 1, 2026, Client Accounts for which BBH serves as investment adviser acquired an aggregate of 614,790.0400 Class S Units of Beneficial Interest from the Issuer for an aggregate purchase price of $6,134,000, using funds of such Client Accounts. The purchase settled on July 2, 2026. BBH may be deemed to beneficially own such securities by virtue of its investment discretion over the Client Accounts. | |
| Item 4. | Purpose of Transaction |
All of the securities reported herein were acquired for investment purposes. The Reporting Persons intend to review such investments on a continuing basis and, depending upon various factors, including, without limitation, the Issuer's financial condition, investment performance, market conditions, client investment objectives (in the case of securities held for Client Accounts), and other factors that the Reporting Persons may deem material to their investment decisions, the Reporting Persons may acquire additional securities of the Issuer or may determine to sell or otherwise dispose of all or a portion of the securities deemed beneficially owned by them. Credit Partners and Affiliated Managers Group, Inc., an indirect minority owner of Credit Partners, have agreed to make, directly, or through one or more affiliated entities, certain seed investments in the Issuer. BBH and Credit Partners have agreed to an internal corporate revenue sharing arrangement under which Credit Partners will provide BBH a certain percentage of net revenues that Credit Partners earns on assets attributed to investments in the Issuer by certain clients of BBH with respect to which BBH is not otherwise compensated by such clients. Credit Partners serves as the investment adviser to the Issuer, and certain of the Issuer's officers and directors are employees of a Reporting Person or its affiliates. Through such relationships, these individuals and the Reporting Person may have influence over the activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. In addition, the Reporting Person may from time to time take actions (including through their affiliates) with respect to their investment or the Issuer, including communicating with the board of directors of the Issuer (the "Board"), members of management or other security-holders of the Issuer, or other third parties from time to time, taking steps to implement a course of action, including, without limitation, engaging advisors, including legal, financial, regulatory, technical and/or industry advisors, to assist in any review, and evaluating strategic alternatives as they may become available. Except as described herein, neither Reporting Person presently has any plans or proposals that relate to or would result in any of the matters described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. | |
| Item 5. | Interest in Securities of the Issuer |
| (a) | See Items 7-13 of the cover pages and Item 2 above. |
| (b) | See Items 7-13 of the cover pages and Item 2 above. |
| (c) | During the past sixty (60) days, the Reporting Persons have not entered into any transactions in the Units except as described in Item 3 above. |
| (d) | Not applicable. |
| (e) | Not applicable. |
| Item 6. | Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer |
The information set forth in Item 4 hereof is hereby incorporated by reference into this Item 6. | |
| Item 7. | Material to be Filed as Exhibits. |
Exhibit 99.1 Joint Filing Agreement between the Reporting Persons. |
| SIGNATURE | |
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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