Robert B. Atwell - 18 Feb 2026 Form 4 Insider Report for NICOLET BANKSHARES INC (NIC)

Role: Director
Signature: /s/ H. Phillip Moore, Jr., as attorney-in-fact for Robert B. Atwell
Issuer symbol: NIC
Transactions as of: 18 Feb 2026
Net transactions value: -$1,596,719
Form type: 4
Filing time: 20 Feb 2026, 14:52:46 UTC
Previous filing: 21 Jan 2026
Next filing: 09 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
ATWELL ROBERT BRUCE	Director	C/O NICOLET NATIONAL BANK, 111 NORTH WASHINGTON STREET, GREEN BAY	/s/ H. Phillip Moore, Jr., as attorney-in-fact for Robert B. Atwell	20 Feb 2026	0001253903

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NIC	Common Stock	Options Exercise	$732,750	+15,000	+44%	$48.85	49,054	18 Feb 2026	Direct
transaction	NIC	Common Stock	Tax liability	$1,335,083	-8,604	-18%	$155.17	40,450	18 Feb 2026	Direct
transaction	NIC	Common Stock	Sale	$994,386	-6,396	-16%	$155.47	34,054	18 Feb 2026	Direct	F1
holding	NIC	Common Stock						555	18 Feb 2026	by Nicolet National Bank Deferred Compensation Plan For Non-employee Directors

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	NIC	Stock Option (Right to Buy)	Options Exercise	$0	-15,000	-100%	$0.000000	0	18 Feb 2026	Common Stock	15,000	$48.85	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.898 to $155.824, inclusive. Mr. Atwell undertakes to provide to Nicolet Bankshares, Inc., any security holder of Nicolet Bankshares, Inc., or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.
F2	The nonqualified options fully vested as of May 16, 2022, and have been fully exercised as of the date of this report.

Content

The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.898 to $155.824, inclusive. Mr. Atwell undertakes to provide to Nicolet Bankshares, Inc., any security holder of Nicolet Bankshares, Inc., or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

The nonqualified options fully vested as of May 16, 2022, and have been fully exercised as of the date of this report.