Donnelley Financial officer to sell 16,450 shares

Rhea-AI Filing Summary

Donnelley Financial Solutions, Inc. (DFIN) received a notice under Rule 144 that officer Robert Kirk Williams intends to sell 16,450 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or about September 3, 2026 on the NYSE, with an indicated value of $802,190.83.

The shares relate to restricted stock vesting under a registered plan, including 14,981 shares vesting on March 3, 2026 and 1,469 shares vesting on March 4, 2026.

Key Figures

Shares covered by Rule 144 notice: 16,450 shares Indicated value of shares: $802,190.83 Shares vesting March 3, 2026: 14,981 shares +2 more

5 metrics

Shares covered by Rule 144 notice 16,450 shares Common stock to be sold for the account of Robert Kirk Williams

Indicated value of shares $802,190.83 Value associated with 16,450 DFIN common shares in the securities information section

Shares vesting March 3, 2026 14,981 shares Restricted stock vesting under a registered plan on March 3, 2026

Shares vesting March 4, 2026 1,469 shares Restricted stock vesting under a registered plan on March 4, 2026

Planned sale date September 3, 2026 Date listed in securities information for NYSE sale

Key Terms

Rule 144, Restricted Stock, Registered Plan, NYSE

4 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 financial

"Restricted Stock Vesting Under a Registered Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Registered Plan financial

"Restricted Stock Vesting Under a Registered Plan"

A registered plan is a savings or investment account that a government recognizes for special tax treatment and rules, such as limits on how much you can put in and conditions for withdrawals. For investors it matters because those rules change how much of your gains are taxed, how quickly your money can be accessed and what strategies make sense — like a labeled jar that gives tax breaks but comes with rules about when and how you can take the money out.

NYSE market

"09/03/2026 | NYSE"

A large, regulated marketplace where stocks and other securities are listed and traded, acting like a global auction house that matches buyers and sellers and helps determine share prices. It matters to investors because listing and trading there provide liquidity, price discovery, and regulatory oversight—making it easier to buy or sell holdings and giving companies a visible platform that can affect credibility and access to capital.

FAQ

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

What does the Form 144 filing disclose for DFIN?

The notice states that Robert Kirk Williams, an officer of Donnelley Financial Solutions (DFIN), intends to sell 16,450 shares of common stock under Rule 144, with an indicated value of $802,190.83, through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many DFIN shares are covered by Robert Kirk Williams’ planned Rule 144 sale?

The filing covers a planned sale of 16,450 shares of DFIN common stock. These shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services and are associated with vested restricted stock under a registered plan.

What is the approximate value of the DFIN shares in the Form 144 filing?

The Form 144 indicates a value of $802,190.83 for the 16,450 DFIN common shares that officer Robert Kirk Williams intends to sell, based on the information provided in the securities information section.

When are the DFIN shares expected to vest for the reported transactions?

The notice lists restricted stock vesting under a registered plan of 14,981 shares on March 3, 2026 and 1,469 shares on March 4, 2026, which together correspond to the 16,450 shares covered by the planned Rule 144 sale.

On which market are the DFIN shares in the Form 144 intended to be sold?

The Form 144 states that the 16,450 DFIN common shares covered by the notice are intended to be sold on the NYSE, with Morgan Stanley Smith Barney LLC Executive Financial Services listed as the broker handling the transaction.

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

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Available on EDGAR 09/03/2026 - 04:05 PM EDT Accepted by SEC EDGAR 09/03/2026 - 04:04 PM EDT 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	0001990064
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	DONNELLEY FINANCIAL SOLUTIONS, INC.
SEC File Number	001-37728
Address of Issuer	35 West Wacker Drive Chicago ILLINOIS 60601
Phone	800-823-5304
Name of Person for Whose Account the Securities are To Be Sold	ROBERT KIRK WILLIAMS
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	16450	802190.83	245850383	09/03/2026	NYSE

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	03/03/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			14981	03/03/2026	Not Applicable
Common	03/04/2026	Restricted Stock Vesting Under a Registered Plan	Issuer			1469	03/04/2026	Not Applicable

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/03/2026
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/ Robert Kirk Williams
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)