Were Richard Petrino’s Northern Trust (NTRS) share acquisitions open-market buys?

No. Both acquisitions were coded as awards (transaction code A), indicating grants or similar compensation-related issuances. The filing explicitly categorizes them as "Grant, award, or other acquisition," not as open-market purchases by the director.

What price was used for Richard Petrino’s Northern Trust (NTRS) share awards?

One award of 989 shares carried a price of $0.0000 per share, reflecting a no-cost grant. A second, smaller award of 17.45 shares used a reference price of $171.74 per share, while still being categorized as a grant or award.

Director at Northern Trust (NTRS) granted new stock units and shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Northern Trust Corp director Richard Petrino reported two equity awards of common stock. On April 21, he acquired 989 shares at no cost as a grant, and an additional 17.45 shares at $171.74 per share, also characterized as an award rather than an open-market purchase.

A footnote states he also holds 2,175.97 stock units that will be paid on a 1-for-1 basis in Northern Trust common shares. The footnote corrects a previously reported stock unit balance, clarifying the actual amount on that earlier date was 2,118.09 units instead of 2,332.09.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Petrino Richard

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	17.45	$171.74	$3K
Grant/Award	Common Stock	989	$0.00	--

Holdings After Transaction: Common Stock — 3,351.97 shares (Direct, null)

Footnotes (1)

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Key Figures

Share award (no-cost): 989 shares Additional share award: 17.45 shares Stock units held: 2,175.97 units +2 more

5 metrics

Share award (no-cost) 989 shares Common Stock grant on April 21, 2026 at $0.0000 per share

Additional share award 17.45 shares Common Stock award on April 21, 2026 at $171.74 per share

Stock units held 2,175.97 units Payable 1-for-1 in Northern Trust common stock

Corrected prior unit balance 2,118.09 units Actual units on earlier Form 4 date, correcting 2,332.09 reported

Reference price $171.74/share Price used for 17.45-share award on April 21, 2026

Key Terms

stock units, Form 4, Grant, award, or other acquisition, non-derivative

4 terms

stock units financial

"Includes 2,175.97 stock units payable automatically on a 1-for-1 basis"

Stock units are individual pieces of ownership in a company, like slices of a pie that together make up the whole business. They matter to investors because each unit represents a claim on the company’s assets, profits and sometimes voting power, and changes in the number or value of these units affect ownership percentages, potential dividends and share dilution — all of which influence an investment’s worth.

Form 4 regulatory

"previously reported on a Form 4 filed January 1, 2026 in footnote 1"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

non-derivative financial

""transaction_type": "non-derivative""

Form 4 Insider Transactions: What Each Field Means →

04/23/2026 - 06:39 PM

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^*

Petrino Richard

(Last)

(First)

(Middle)

50 SOUTH LASALLE STREET

(Street)

CHICAGO

ILLINOIS

60603

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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)
04/21/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/21/2026		A		17.45	A	$171.74	3,351.97⁽¹⁾	D
Common Stock	04/21/2026		A		989	A	$0	4,340.97⁽¹⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Includes 2,175.97 stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock. Reflects a correction to the amount of stock units previously reported on a Form 4 filed January 1, 2026 in footnote 1 thereto. The actual amount of stock units on such date was 2,118.09 shares, rather than the 2,332.09 shares originally reported in the footnote.

Remarks:

	Michael Rouvina, Attorney-in-Fact for Richard Petrino	04/23/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Northern Trust (NTRS) director Richard Petrino report?

Director Richard Petrino reported two equity awards of Northern Trust common stock. He received 989 shares at no cost and an additional 17.45 shares at $171.74 per share, both classified as grants or awards rather than open-market purchases.

How many Northern Trust (NTRS) stock units does Richard Petrino hold?

The filing notes that Richard Petrino holds 2,175.97 stock units. These units are payable automatically on a 1-for-1 basis in Northern Trust common shares, meaning each unit will convert into one share when distributed according to plan terms.

What correction to prior Northern Trust (NTRS) Form 4 reporting was disclosed?

A footnote explains a correction to an earlier Form 4 filed January 1, 2026. It clarifies the actual number of stock units at that time was 2,118.09, not the 2,332.09 units previously reported in that filing’s footnote.