NBT Bancorp (NBTB) EVP sells 2,400 shares in open market

Rhea-AI Filing Summary

NBT Bancorp Inc. executive Martin Randolph Sparks, who serves as EVP, General Counsel and Secretary, reported an open-market sale of 2,400 shares of NBT Bancorp Inc. Common Stock at $41.3001 per share on March 13, 2026. Following this transaction, he directly holds 11,349.882 shares of the company’s common stock.

Insider Trade Summary

Net Seller: 2,400 shares ($99,120)

Net Sell 1 txn

Insider Sparks Martin Randolph

Role EVP,General Counsel,Secretary

Sold 2,400 shs ($99K)

Type	Security	Shares	Price	Value
Sale	NBT Bancorp Inc. Common Stock	2,400	$41.3001	$99K

Holdings After Transaction: NBT Bancorp Inc. Common Stock — 11,349.882 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Sparks Martin Randolph

(Last) (First) (Middle)

52 SOUTH BROAD STREET

(Street)

NORWICH NY 13815

(City) (State) (Zip)

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,General Counsel,Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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
NBT Bancorp Inc. Common Stock	03/13/2026		S		2,400	D	$41.3001	11,349.882	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:

	By: Annette L. Burns, Power of Attorney For: Martin Randolph Sparks	03/17/2026
	** 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.

FAQ

What insider transaction did NBTB executive Martin Randolph Sparks report?

Martin Randolph Sparks reported an open-market sale of 2,400 shares of NBT Bancorp Inc. Common Stock. The transaction was recorded as a sale under code “S,” indicating an ordinary market or private sale rather than an option exercise or gift.

At what price did the NBTB EVP sell his NBT Bancorp shares?

The 2,400 NBT Bancorp Inc. Common Stock shares were sold at an average price of $41.3001 per share. This reflects the per-share transaction price disclosed for the open-market sale on March 13, 2026, in the Form 4 filing.

How many NBT Bancorp (NBTB) shares does Martin Randolph Sparks hold after the sale?

After the reported sale, Martin Randolph Sparks directly owns 11,349.882 shares of NBT Bancorp Inc. Common Stock. This post-transaction holding figure comes directly from the Form 4 and shows his remaining direct equity position in the company.

What does transaction code “S” mean in the NBTB Form 4 filing?

Transaction code “S” in the Form 4 indicates a sale in the open market or a private transaction. For NBT Bancorp, it confirms that Sparks’ 2,400-share trade was a straightforward disposition of common stock rather than an option exercise, tax withholding, or gift.

Was the NBT Bancorp (NBTB) insider transaction a buy or a sell?

The insider transaction was a sell. The Form 4 shows a transaction code “S” and identifies the action as an open-market sale of 2,400 NBT Bancorp Inc. Common Stock shares by executive Martin Randolph Sparks.

Does the NBTB Form 4 show any derivative securities for Martin Randolph Sparks?

The Form 4 data shows no derivative transactions or remaining derivative positions for Martin Randolph Sparks. The derivative summary is empty, indicating this filing only reports activity in NBT Bancorp Inc. Common Stock, not options or other derivatives.