GCM Grosvenor officer to sell 10,000 shares

GCM Grosvenor Inc. (GCMG) received a notice that officer Pamela Bentley plans to sell 10,000 shares of common stock under Rule 144, with an indicated aggregate market value of $127,600, through Morgan Stanley Smith Barney on NASDAQ on September 16, 2026.

Rhea-AI Filing Summary

GCM Grosvenor Inc. (GCMG) received a notice that officer Pamela Bentley plans to sell 10,000 shares of common stock under Rule 144, with an indicated aggregate market value of $127,600, through Morgan Stanley Smith Barney on NASDAQ on September 16, 2026.

The shares come from restricted stock units that vested between May 31, 2025 and May 31, 2026. The notice also reports prior Rule 10b5-1 sales of 40,000 shares for $502,508 on September 15, 2026.

Key Figures

Shares to be sold: 10,000 shares Aggregate market value of planned sale: $127,600 Planned sale date: September 16, 2026 +3 more

6 metrics

Shares to be sold 10,000 shares Common stock covered by the Rule 144 notice

Aggregate market value of planned sale $127,600 Indicated value for the 10,000 shares to be sold

Planned sale date September 16, 2026 Date associated with the 10,000-share NASDAQ sale

Shares sold in past 3 months 40,000 shares Rule 10b5-1 sales on September 15, 2026

Proceeds from recent 10b5-1 sales $502,508 Aggregate proceeds for 40,000 shares sold September 15, 2026

RSU vesting period May 31, 2025 – May 31, 2026 Period during which RSUs vested and shares were acquired

Key Terms

Rule 144, restricted stock units, Rule 10b5-1

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock units financial

"The securities to be sold were acquired upon the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Rule 10b5-1 regulatory

"10b5-1 Sales for PAMELA LYN BENTLEY"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for GCMG?

The filing discloses that officer Pamela Bentley intends to sell 10,000 shares of GCM Grosvenor common stock under Rule 144, with an aggregate market value of about $127,600, based on the information in the notice.

How many GCMG shares has Pamela Bentley sold recently?

The notice reports prior Rule 10b5-1 sales of 40,000 shares of GCM Grosvenor common stock on September 15, 2026, for aggregate proceeds of $502,508.

What GCMG securities are covered by this Form 144 notice?

The notice covers 10,000 shares of GCM Grosvenor common stock to be sold through Morgan Stanley Smith Barney on NASDAQ, related to shares acquired from vested restricted stock units.

When were the GCMG shares to be sold under Form 144 acquired?

The securities to be sold were acquired upon the vesting of restricted stock units during the period from May 31, 2025 through May 31, 2026, according to the remarks section.

Is the planned GCMG share sale under a trading plan?

The filing labels earlier sales as “10b5-1 Sales for Pamela Lyn Bentley”, indicating those 40,000 shares on September 15, 2026 were sold under a Rule 10b5-1 trading plan. The 10,000-share planned sale is disclosed under Rule 144.

Who is the broker for the GCMG shares in this Form 144?

The broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, which is identified as handling the 10,000-share common stock sale on NASDAQ.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/16/2026 - 04:31 PM Accepted by SEC EDGAR 09/16/2026 - 04:30 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001610089
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GCM Grosvenor Inc.
SEC File Number	001-39716
Address of Issuer	900 N Michigan Avenue, Suite 1100 Chicago ILLINOIS 60611
Phone	3125066500
Name of Person for Whose Account the Securities are To Be Sold	PAMELA BENTLEY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	10000	127600.00	61126269	09/16/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/31/2025	Restricted Stock Units	Issuer			10000	05/31/2025	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for PAMELA LYN BENTLEY 900 N Michigan Avenue, Suite 1100 Chicago IL 60611	Common	09/15/2026	40000	502508.00

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 05/31/2025 through 05/31/2026
Date of Notice	09/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/16/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Pamela Bentley
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)