# EDGAR Filing Document

**Accession Number:** 0001509764
**File Stem:** 0001213900-26-016389
**Filing Date:** 2026-2
**Character Count:** 19593
**Document Hash:** 703cc653da5590b0b0906ead18437076
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-016389.hdr.sgml**: 20260213

**ACCESSION NUMBER**: 0001213900-26-016389

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260213

**DATE AS OF CHANGE**: 20260213

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GCM Grosvenor Inc.
- **CENTRAL INDEX KEY:** 0001819796
- **STANDARD INDUSTRIAL CLASSIFICATION:** INVESTMENT ADVICE [6282]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91863
- **FILM NUMBER:** 26632342

**BUSINESS ADDRESS:**
- **STREET 1:** 900 NORTH MICHIGAN AVENUE
- **STREET 2:** SUITE 1100
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60611
- **BUSINESS PHONE:** 312-506-6500

**MAIL ADDRESS:**
- **STREET 1:** 900 NORTH MICHIGAN AVENUE
- **STREET 2:** SUITE 1100
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60611
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sacks Michael Jay
- **CENTRAL INDEX KEY:** 0001509764

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A

**MAIL ADDRESS:**
- **STREET 1:** 900 NORTH MICHIGAN AVENUE
- **STREET 2:** SUITE 1100
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60611

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 4)**

**Issuer:** GCM Grosvenor Inc.

**Title of Class of Securities:** Class A Common Stock, par value $0.0001

**CUSIP Number:** 36831E108

**Date of Event Which Requires Filing of this Statement:** 12/31/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Michael Jay Sacks | Names of Reporting Persons<br>Michael Jay Sacks |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>141672819.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>141672819.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>141672819.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>141672819.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>70.0% | Percent of Class Represented by Amount in Row (9)<br>70.0% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

---

| 1. | Names of Reporting Persons<br>Grosvenor Holdings, L.L.C. | Names of Reporting Persons<br>Grosvenor Holdings, L.L.C. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>IL | Citizenship or Place of Organization<br>IL |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>133965014.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>133965014.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>0.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>68.8% | Percent of Class Represented by Amount in Row (9)<br>68.8% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (Limited Liability Company)

---

| 1. | Names of Reporting Persons<br>Grosvenor Holdings II, L.L.C. | Names of Reporting Persons<br>Grosvenor Holdings II, L.L.C. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>3226977.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>3226977.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>3226977.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>3226977.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.0% | Percent of Class Represented by Amount in Row (9)<br>5.0% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (Limited Liability Company)

---

| 1. | Names of Reporting Persons<br>GCM Grosvenor Management, LLC | Names of Reporting Persons<br>GCM Grosvenor Management, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>4480828.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>4480828.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>4480828.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>4480828.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>6.9% | Percent of Class Represented by Amount in Row (9)<br>6.9% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (Limited Liability Company)

---

| 1. | Names of Reporting Persons<br>GCM Progress LLC | Names of Reporting Persons<br>GCM Progress LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>90155396.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>90155396.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90155396.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90155396.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>59.8% | Percent of Class Represented by Amount in Row (9)<br>59.8% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (Limited Liability Company)

---

| 1. | Names of Reporting Persons<br>GCM Progress Subsidiary LLC | Names of Reporting Persons<br>GCM Progress Subsidiary LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>90155396.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>90155396.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90155396.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>90155396.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>59.8% | Percent of Class Represented by Amount in Row (9)<br>59.8% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** (Limited Liability Company)

---

**Item 1(a). Name of Issuer:**
GCM Grosvenor Inc.

**Item 1(b). Address of Issuer's Principal Executive Offices:**
900 North Michigan Avenue, Suite 1100, Chicago, IL 60611.

**Item 2(a). Name of Person Filing:**
Each of the following is hereinafter individually referred to as a "Reporting Person" and collectively as the "Reporting Persons."  This statement is filed on behalf of:

Michael Jay Sacks
Grosvenor Holdings, L.L.C.
Grosvenor Holdings II, L.L.C.
GCM Grosvenor Management, LLC
GCM Progress LLC
GCM Progress Subsidiary LLC

**Item 2(b). Address of Principal Business Office:**
The principal business address of the Reporting Persons is c/o GCM Grosvenor Inc., 900 North Michigan Avenue, Suite 1100, Chicago, IL 60611.

**Item 2(c). Citizenship:**
Grosvenor Holdings, L.L.C. is organized under the laws of the state of Illinois. Grosvenor Holdings II, L.L.C., GCM Grosvenor Management, LLC, GCM Progress LLC and GCM Progress Subsidiary LLC are each organized under the laws of the state of Delaware. Michael Jay Sacks is a citizen of the United States.

**Item 2(d). Title of Class of Securities:**
Class A Common Stock, par value $0.0001

**Item 2(e). CUSIP Number:**
36831E108

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

The ownership information presented below represents beneficial ownership of the shares Class A Common Stock as of December 31, 2025, based upon 60,721,681 shares of Class A Common Stock outstanding as of December 31, 2025. The ownership information assumes the redemption of the common units of Grosvenor Capital Management Holdings, LLLP ("Common Units") held by the Reporting Persons for shares of the Issuer's Class A Common Stock on a one-to-one basis.
Michael Jay Sacks                                 141,672,819
Grosvenor Holdings, L.L.C.                   133,965,014
Grosvenor Holdings II, L.L.C.                    3,226,977
GCM Grosvenor Management, LLC          4,480,828
GCM Progress LLC                                  90,155,396
GCM Progress Subsidiary LLC                90,155,396

**(b) Percent of class:**

Michael Jay Sacks                                           70.0%
Grosvenor Holdings, L.L.C.                             68.8%
Grosvenor Holdings II, L.L.C.                            5.0%
GCM Grosvenor Management, LLC                  6.9%
GCM Progress LLC                                          59.8%
GCM Progress Subsidiary LLC                       59.8%

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

Michael Jay Sacks                                    0
Grosvenor Holdings, L.L.C.                      0
Grosvenor Holdings II, L.L.C.                   0
GCM Grosvenor Management, LLC         0
GCM Progress LLC                                   0
GCM Progress Subsidiary LLC                 0

**(ii) Shared power to vote or to direct the vote:**

Michael Jay Sacks                                 141,672,819
Grosvenor Holdings, L.L.C.                   133,965,014
Grosvenor Holdings II, L.L.C.                    3,226,977
GCM Grosvenor Management, LLC          4,480,828
GCM Progress LLC                                  90,155,396
GCM Progress Subsidiary LLC               90,155,396

**(iii) Sole power to dispose or to direct the disposition of:**

Michael Jay Sacks                                    0
Grosvenor Holdings, L.L.C.                      0
Grosvenor Holdings II, L.L.C.                   0
GCM Grosvenor Management, LLC         0
GCM Progress LLC                                   0
GCM Progress Subsidiary LLC                 0

**(iv) Shared power to dispose or to direct the disposition of:**

Michael Jay Sacks                                 141,672,819
Grosvenor Holdings, L.L.C.                   133,965,014
Grosvenor Holdings II, L.L.C.                    3,226,977
GCM Grosvenor Management, LLC          4,480,828
GCM Progress LLC                                  90,155,396
GCM Progress Subsidiary LLC                90,155,396
Grosvenor Holdings II, L.L.C. is the record holder of 3,226,977 Common Units. GCM Grosvenor Management, LLC is the record holder of 4,480,828 Common Units. Grosvenor Holdings, L.L.C. is the record holder of 43,802,630 Common Units and 6,988 shares of Class A Common Stock. GCM Progress Subsidiary LLC is the record holder of 90,155,396 Common Units. The Common Units may be redeemed by the Reporting Persons at any time for shares of the Issuer's Class A Common Stock on a one-to-one basis.
Mr. Sacks is the ultimate managing member of each of Grosvenor Holdings, L.L.C., Grosvenor Holdings II, L.L.C. and GCM Grosvenor Management, LLC. Grosvenor Holdings, L.L.C. is the sole member of GCM Progress LLC, which is the sole member of GCM Progress Subsidiary LLC. As a result, Mr. Sacks may be deemed to share beneficial ownership of the securities held by the Reporting Persons.

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### 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.

**Michael Jay Sacks**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks

**Grosvenor Holdings, L.L.C.**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks/Managing Member

**Grosvenor Holdings II, L.L.C.**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks/Managing Member

**GCM Grosvenor Management, LLC**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks/Managing Member

**GCM Progress LLC**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks/Managing Member

**GCM Progress Subsidiary LLC**

**Date:** 02/13/2026

**By:** /s/ Michael Jay Sacks

**Name & Title:** Michael Jay Sacks/Managing Member