Northern Trust (NTRS) EVP now holds 71,808 common shares after 5,000-share sale

Rhea-AI Filing Summary

Northern Trust Corporation executive vice president Thomas A. South reported selling 5,000 shares of the company’s common stock. The sale on December 11, 2025 was coded “S” and carried a weighted average price of $139.03, based on individual trades between $138.83 and $139.13.

The filing also shows a separate disposition of 80 shares coded “G” at a price of $0. After these transactions, he directly owned 71,808 common shares, which include 33,172 stock units payable on a 1-for-1 basis in common stock. He also held 4,143.14 additional shares indirectly through a 401(k) plan as of September 30, 2025.

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^*

South Thomas A

(Last) (First) (Middle)

50 SOUTH LA SALLE ST

(Street)

CHICAGO IL 60603

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NORTHERN TRUST CORP [ NTRS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/11/2025

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	12/11/2025		S		5,000	D	$139.03(1)	71,888(2)	D
Common Stock	12/11/2025		G		80	D	$0	71,808(2)	D
Common Stock								4,143.14	I	401(k) as of 9-30-2025

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. Price reflects the weighted average sales price from $138.83 to $139.13. Information regarding the number of shares sold at each separate price will be provided by the reporting person upon request.

2. Includes 33,172 stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock.

Remarks:

	David A. Serna, Attorney-in-Fact for Thomas A. South	12/15/2025
	** 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 insider transaction did Northern Trust (NTRS) disclose in this Form 4?

The report shows that Executive Vice President Thomas A. South sold 5,000 shares of Northern Trust common stock on December 11, 2025, in a transaction coded “S.”

At what price were the 5,000 Northern Trust (NTRS) shares sold?

The 5,000 shares were sold at a weighted average price of $139.03 per share, with individual sale prices ranging from $138.83 to $139.13.

How many Northern Trust (NTRS) shares does Thomas A. South own after the reported transactions?

After the reported transactions, Thomas A. South directly owned 71,808 shares of Northern Trust common stock, including 33,172 stock units payable on a 1-for-1 basis in common stock. He also indirectly held 4,143.14 shares through a 401(k) plan as of September 30, 2025.

What does the weighted average sale price disclosure mean in the Northern Trust (NTRS) Form 4?

The note explains that the reported $139.03 sale price is a weighted average of multiple trades executed between $138.83 and $139.13. The reporting person states that details on the number of shares sold at each separate price will be provided upon request.

What other transactions or holdings are reported for Thomas A. South in this Northern Trust (NTRS) filing?

In addition to the 5,000-share sale, the filing shows a disposition of 80 shares coded “G” at a price of $0. It also reports 4,143.14 shares held indirectly in a 401(k) plan as of September 30, 2025.