NBT Bancorp EVP Sarah Halliday sells 9000.0000 shares

NBT Bancorp Inc. executive Sarah A. Halliday, EVP/Chief Comm Innovation Officer, sold 9000.0000 shares of common stock on July 29, 2026 at an average price of $54.0446 per share, with sale prices between $52.445 and $54.31.

Rhea-AI Filing Summary

NBT Bancorp Inc. executive Sarah A. Halliday, EVP/Chief Comm Innovation Officer, sold 9000.0000 shares of common stock on July 29, 2026 at an average price of $54.0446 per share, with sale prices between $52.445 and $54.31. After the sale she holds 22054.0000 shares directly, 5317.9330 phantom stock units linked to common stock under a Deferred Compensation Plan, and 3637.1290 shares held indirectly through a 401k plan.

Insider Trade Summary

Net Seller: 9,000 shares

Net Sell 3 txns

Insider Halliday Sarah A

Role EVP/Chief Comm Innovation Off

Sold 9,000 shs ($486K)

Type	Security	Shares	Price	Value
Sale	NBT Bancorp Inc. Common Stock F1	9,000	$54.0446	$486K
holding	Phantom Stock F2	--	--	--
holding	NBT Bancorp Inc. Common Stock	--	--	--

Holdings After Transaction: NBT Bancorp Inc. Common Stock — 22,054 shares (Direct); Phantom Stock — 5,317.933 contracts (Direct); NBT Bancorp Inc. Common Stock — 3,637.129 shares (Indirect, 401k)

Footnotes (2)

1. F1. The sale price is an average of 9,000 shares sold at prices between 52.445 and 54.31.
2. F2. Each share of phantom stock is deemed invested in one share of NBT Bancorp Inc. common stock pursuant to the terms of the Deferred Compensation Plan.

Key Figures

Common shares sold: 9000.0000 shares Average sale price: $54.0446 per share Direct common shares after sale: 22054.0000 shares +2 more

5 metrics

Common shares sold 9000.0000 shares Non-derivative sale of NBT Bancorp Inc. common stock on 2026-07-29

Average sale price $54.0446 per share Weighted average price for 9000.0000 shares, with trades between $52.445 and $54.31

Direct common shares after sale 22054.0000 shares Direct ownership of NBT Bancorp Inc. common stock following the reported transaction

Phantom stock units 5317.9330 units Phantom Stock deemed invested in one NBT Bancorp Inc. common share per unit

401k indirect holdings 3637.1290 shares NBT Bancorp Inc. common stock held indirectly through a 401k plan

Key Terms

Phantom Stock, Deferred Compensation Plan, indirect ownership

3 terms

Phantom Stock financial

"security_title: "Phantom Stock" and footnote describing phantom stock units"

A phantom stock is a form of compensation that gives employees or executives the benefits of stock ownership, such as the increase in stock value, without actually giving them real shares. It acts like a promise to pay the employee the equivalent value of company stock later, often as a bonus or incentive. This allows companies to motivate and reward staff without diluting ownership or transferring actual shares.

Deferred Compensation Plan financial

"“pursuant to the terms of the Deferred Compensation Plan.”"

A deferred compensation plan is an arrangement where an employer agrees to pay part of an employee’s pay or bonus at a later date instead of immediately, often to reduce current tax bills or to tie rewards to long-term performance. For investors it matters because these promises create future cash obligations and influence executive incentives and retention; they can affect a company’s reported liabilities, cash flow planning and the risk profile if the business faces financial trouble.

indirect ownership financial

""direct_or_indirect": "I" with nature_of_ownership "401k""

FAQ

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

What insider sale did NBTB disclose for Sarah A. Halliday?

Sarah A. Halliday, EVP/Chief Comm Innovation Officer at NBT Bancorp Inc., sold 9000.0000 shares of common stock on July 29, 2026 at an average price of $54.0446 per share, with individual sale prices between $52.445 and $54.31.

How many NBTB shares does Sarah Halliday own after the reported sale?

Following the transaction, Sarah Halliday directly owns 22054.0000 NBT Bancorp Inc. common shares, plus 3637.1290 shares held indirectly through a 401k plan and 5317.9330 phantom stock units that are economically linked to common stock.

What is the phantom stock position reported for NBTB in this Form 4?

The Form 4 shows 5317.9330 units of Phantom Stock, each deemed invested in one NBT Bancorp Inc. common share under a Deferred Compensation Plan, providing an economic interest aligned with the company’s stock rather than actual share ownership.

Was Sarah Halliday’s NBTB share sale under a Rule 10b5-1 trading plan?

The Rule 10b5-1 checkbox in the filing is not marked, and there is no footnote indicating a trading plan, so the sale is not identified as being executed under a Rule 10b5-1 or other pre-arranged trading arrangement.

What transaction code describes Sarah Halliday’s NBTB trade?

The reported trade uses transaction code "S", described as a sale in an open-market or private transaction, covering 9000.0000 shares of NBT Bancorp Inc. common stock at a weighted average price of $54.0446 per share.

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

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Available on EDGAR 07/30/2026 - 02:31 PM Accepted by SEC EDGAR 07/30/2026 - 02:26 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^*

Halliday Sarah A

(Last) (First) (Middle)

52 SOUTH BROAD STREET

(Street)

NORWICH NEW YORK 13815

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
NBT BANCORP INC [ NBTB ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP/Chief Comm Innovation Off

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/29/2026

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
NBT Bancorp Inc. Common Stock	07/29/2026		S		9,000	D	$54.0446(1)	22,054	D
NBT Bancorp Inc. Common Stock								3,637.129	I	401k

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
Phantom Stock	(2)							(2)	(2)	NBT Bancorp Inc. Common Stock	5,317.933		5,317.933	D

Explanation of Responses:

1. The sale price is an average of 9,000 shares sold at prices between 52.445 and 54.31.

2. Each share of phantom stock is deemed invested in one share of NBT Bancorp Inc. common stock pursuant to the terms of the Deferred Compensation Plan.

	By: Annette L. Burns, Power of Attorney For: Sarah A. Halliday	07/30/2026
	** 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)