Donnelley Financial director buys 20,780 shares

A Donnelley Financial Solutions director disclosed open-market purchases totaling 20,780 DFIN shares plus existing restricted stock units.

Rhea-AI Filing Summary

Donnelley Financial Solutions, Inc. (DFIN) director Joseph Leo Binz reported open-market purchases of the company’s common stock. On September 1, 2026 he purchased 10,000 shares at a weighted average price of $48.5245 per share and 5,000 shares at $47.75 per share, and on September 2, 2026 he purchased an additional 5,780 shares at $47.75 per share. After these transactions, his holdings include 20,780 shares held directly and 3,924 restricted stock units. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 20,780 shares

Net Buy 3 txns

Insider BINZ JOSEPH LEO

Role Director

Bought 20,780 shs ($1000K)

Type	Security	Shares	Price	Value
Purchase	Common Stock F2	5,780	$47.75	$276K
Purchase	Common Stock	5,000	$47.75	$239K
Purchase	Common Stock F1	10,000	$48.5245	$485K

Holdings After Transaction: Common Stock — 24,704 shares (Direct)

Footnotes (2)

1. F1. The reported price represents a weighted average purchase price. The range of prices at which common stock was purchased was $48.1491 to $48.8999 per share. The Reporting Person undertakes to provide to the staff, the issuer or a security holder full information regarding the number of shares purchased at each separate price.
2. F2. Includes 20,780 shares held directly and 3,924 restricted stock units.

Key Figures

Shares purchased September 1, 2026 (weighted average tranche): 10,000 shares at $48.5245 per share Additional shares purchased September 1, 2026: 5,000 shares at $47.75 per share Shares purchased September 2, 2026: 5,780 shares at $47.75 per share +3 more

6 metrics

Shares purchased September 1, 2026 (weighted average tranche) 10,000 shares at $48.5245 per share Open-market purchase with prices ranging from $48.1491 to $48.8999

Additional shares purchased September 1, 2026 5,000 shares at $47.75 per share Open-market purchase of Donnelley Financial Solutions common stock

Shares purchased September 2, 2026 5,780 shares at $47.75 per share Open-market purchase of Donnelley Financial Solutions common stock

Total shares purchased 20,780 shares Aggregate of the three reported purchases on September 1–2, 2026

Direct common stock holdings after transactions 20,780 shares Shares held directly by Joseph Leo Binz after reported purchases

Restricted stock units held 3,924 restricted stock units Equity awards held by Joseph Leo Binz

Key Terms

weighted average purchase price, restricted stock units, open market or private transaction

3 terms

weighted average purchase price financial

"The reported price represents a weighted average purchase price."

The weighted average purchase price is the average cost per share you paid across multiple buys, calculated so larger purchases count more than smaller ones. Imagine buying apples at different prices: the overall price you effectively paid depends on how many apples you bought at each price. Investors use it to measure true cost basis, calculate gains or losses, decide when to sell, and manage taxes and portfolio performance.

restricted stock units financial

"Includes 20,780 shares held directly and 3,924 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.

open market or private transaction financial

"Purchase in open market or private transaction"

FAQ

What insider transactions did DFIN director Joseph Leo Binz report?

He reported three open-market purchases of Donnelley Financial Solutions common stock on September 1–2, 2026, totaling 20,780 shares at prices around $47.75–$48.52 per share.

How many DFIN shares did Joseph Leo Binz buy on September 1, 2026?

On September 1, 2026, Joseph Leo Binz purchased 15,000 shares of Donnelley Financial Solutions common stock: 10,000 shares at a weighted average price of $48.5245 per share and an additional 5,000 shares at $47.75 per share.

What DFIN share purchase did Joseph Leo Binz make on September 2, 2026?

On September 2, 2026, he purchased 5,780 shares of Donnelleley Financial Solutions common stock at $47.75 per share in an open-market transaction.

What are Joseph Leo Binz’s reported holdings in DFIN after these transactions?

After the reported purchases, his equity interests include 20,780 shares of Donnelleley Financial Solutions common stock held directly and 3,924 restricted stock units.

Were Joseph Leo Binz’s DFIN share purchases made under a Rule 10b5-1 plan?

No. The filing indicates the Rule 10b5-1 checkbox is not marked, so no Rule 10b5-1 trading plan is reported for these Donnelley Financial Solutions share purchases.

What price range applied to the weighted average DFIN share purchase reported?

For the 10,000-share purchase at a weighted average price of $48.5245 per share, the filing states the actual transaction prices ranged from $48.1491 to $48.8999 per share.

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

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Available on EDGAR 09/03/2026 - 05:58 PM Accepted by SEC EDGAR 09/03/2026 - 05:57 PM Learn about SEC filing dates

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^*

BINZ JOSEPH LEO

(Last) (First) (Middle)

C/O DONNELLEY FINANCIAL SOLUTIONS

391 STEEL WAY

(Street)

LANCASTER PENNSYLVANIA 17601

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

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

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

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

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	09/01/2026		P		5,000	A	$47.75	8,924	D
Common Stock	09/01/2026		P		10,000	A	$48.5245(1)	18,924	D
Common Stock	09/02/2026		P		5,780	A	$47.75	24,704(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 purchase price. The range of prices at which common stock was purchased was $48.1491 to $48.8999 per share. The Reporting Person undertakes to provide to the staff, the issuer or a security holder full information regarding the number of shares purchased at each separate price.

2. Includes 20,780 shares held directly and 3,924 restricted stock units.

	William Zola, pursuant to power of attorney	09/03/2026
	** 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.
* Form 4: SEC 1474 (03-26)