[Form 4] Donnelley Financial Solutions, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Luis A. Aguilar, a director of Donnelley Financial Solutions, Inc. (DFIN), reported a sale of 7,421 shares of the issuer's common stock on 08/27/2025 under Form 4. The filing shows a weighted average sale price of $56.7147, with the sale price range disclosed as $56.22 to $57.00. After the reported disposition, Aguilar beneficially owns 53,343 shares in total, comprised of 38,878 shares held directly and 14,465 restricted stock units. The Form 4 was executed on behalf of the reporting person by William Zola under power of attorney and dated 08/28/2025.

Positive

• Timely and complete Section 16 disclosure of the director's sale including weighted average price and price range
• Clear breakdown of post-transaction beneficial ownership showing direct shares and restricted stock units

Negative

• Insider sold 7,421 shares, which reduces the director's direct holding
• No information provided on reasons for the sale within the Form 4

Insights

Corporate Governance Expert

TL;DR: Director sale disclosed; filing details holdings and RSUs, showing transparent reporting.

The Form 4 documents a director-level sale of 7,421 shares at a weighted average price of $56.7147, with the filer retaining 53,343 shares including 14,465 restricted stock units. From a governance perspective, the filing meets Section 16 reporting requirements and includes the required price range disclosure and a statement to provide detailed per-price quantities on request. The use of a power of attorney for signature is routine and the report appears complete based solely on the provided text.

Securities Analyst

TL;DR: Insider disposition was modest relative to remaining stake; transaction is a routine disclosure.

The sale of 7,421 shares at a weighted average of $56.7147 reduces the reporting person's direct position but leaves a sizeable retained interest of 53,343 shares when including RSUs. The filing supplies the weighted average and the traded-price range, enabling investors to interpret the execution context without further inference. No derivative transactions or additional material events are disclosed in this Form 4.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Aguilar Luis A

(Last) (First) (Middle)

C/O DONNELLEY FINANCIAL SOLUTIONS

391 STEEL WAY

(Street)

LANCASTER PA 17601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Donnelley Financial Solutions, Inc. [ DFIN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/27/2025		S		7,421	D	$56.7147(1)	53,343(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The reported price represents a weighted average sale price. The range of prices at which common stock was sold was $56.22 to $57.00 per share. The Reporting Person undertakes to provide to the staff, the issuer or a security holder full information regarding the number of shares sold at each separate price.

2. Includes 38,878 shares held directly and 14,465 restricted stock units.

	William Zola, pursuant to power of attorney	08/28/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Luis A. Aguilar report on Form 4 for DFIN?

The Form 4 reports a sale of 7,421 shares of Donnelley Financial Solutions common stock on 08/27/2025.

At what price were the DFIN shares sold in the reported transaction?

The reported weighted average sale price was $56.7147, with a disclosed sale-price range of $56.22 to $57.00.

How many DFIN shares does the reporting person own after the sale?

Following the transaction, the reporting person beneficially owns 53,343 shares, comprising 38,878 direct shares and 14,465 restricted stock units.

Who signed the Form 4 and when was it executed?

The Form 4 was executed by William Zola pursuant to power of attorney and dated 08/28/2025.

Does the filing disclose any derivative transactions or acquisitions?

No; the provided Form 4 shows only a non-derivative sale of common stock and contains no derivative transactions.