Northern Trust officer proposes $2.86M share sale

The notice records a cash-paid stock option exercise as the source of the shares and lists October 23, 2026 as the proposed sale date.

Rhea-AI Filing Summary

Northern Trust Corp (NTRS) officer Susan Levy filed a notice of a proposed sale of 16,984 common shares through Fidelity Brokerage Services LLC, with an aggregate market value of $2,855,912.01. The notice gives October 23, 2026 as the sale date. It reports that the shares were acquired from the issuer through a stock option exercise on October 23, 2026, with cash listed as the payment method.

Key Figures

Proposed sale: 16,984 common shares Aggregate market value: $2,855,912.01 Shares outstanding: 182,955,653 shares

3 metrics

Proposed sale 16,984 common shares Susan Levy's proposed sale

Aggregate market value $2,855,912.01 Value listed for the proposed sale

Shares outstanding 182,955,653 shares Issuer shares outstanding figure listed in the notice

Key Terms

Rule 144, Stock Option Exercise, attorney-in-fact

3 terms

Rule 144 regulatory

"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.

Stock Option Exercise financial

"Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

attorney-in-fact regulatory

"as attorney-in-fact for Susan Levy"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

How many NTRS shares did Susan Levy propose to sell?

Susan Levy, an officer of Northern Trust Corp (NTRS), reported a proposed sale of 16,984 common shares with an aggregate market value of $2,855,912.01. The notice gives October 23, 2026 as the sale date and names Fidelity Brokerage Services LLC.

How did Susan Levy acquire the NTRS shares?

The 16,984 shares were acquired from the issuer through a stock option exercise on October 23, 2026, with cash listed as the payment method.

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

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Available on EDGAR 10/23/2026 - 04:30 PM EDT Accepted by SEC EDGAR 10/23/2026 - 04:29 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	0001607570
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	NORTHERN TRUST CORP
SEC File Number	001-36609
Address of Issuer	50 S LASALLE ST CHICAGO ILLINOIS 60603
Phone	3126306000
Name of Person for Whose Account the Securities are To Be Sold	Levy Susan Cohen
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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	16984	2855912.01	182955653	10/23/2026	NASDAQ

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	10/23/2026	Stock Option Exercise	Issuer			16984	10/23/2026	Cash

* 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	10/23/2026
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/ Jessica Spraker, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Susan Levy.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)