Nicolet director sells 2,662 shares for $453K

NICOLET BANKSHARES INC (NIC) received a Rule 144 notice related to planned sales of its common stock.

Rhea-AI Filing Summary

NICOLET BANKSHARES INC (NIC) received a Rule 144 notice related to planned sales of its common stock. Robert B. Atwell, a director of Nicolet Bankshares and president of Stella Maris Foundation, filed to permit an open market sale by Stella Maris Foundation of 300 common shares by August 25, 2026. The filing also reports that Atwell, care of Nicolet National Bank, sold 2,662 common shares on July 24, 2026. Atwell states he disclaims any pecuniary interest in sales completed by Stella Maris Foundation.

Key Figures

Planned shares to be sold: 300 shares of common stock Date by which planned sale may occur: August 25, 2026 Shares sold in past 3 months: 2,662 shares of common stock +3 more

6 metrics

Planned shares to be sold 300 shares of common stock Open market sale by Stella Maris Foundation to be completed by August 25, 2026

Date by which planned sale may occur August 25, 2026 End date for the planned open market sale of 300 common shares

Shares sold in past 3 months 2,662 shares of common stock Sold on July 24, 2026 by Robert B. Atwell, care of Nicolet National Bank

Proceeds from past sale $453,188.09 Total consideration for 2,662 common shares sold on July 24, 2026

Security type Common stock Class of Nicolet Bankshares securities covered by this Form 144 notice

Notice date August 25, 2026 Date of the Form 144 notice signed by Robert B. Atwell

Key Terms

Rule 144, pecuniary interest, 501(c)(3) charitable organization, open market sale

4 terms

Rule 144 regulatory

"See the 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.

pecuniary interest financial

"Mr. Atwell disclaims any pecuniary interest in the sale of securities"

501(c)(3) charitable organization regulatory

"Stella Maris Foundation, a 501(c)(3) charitable organization, in which Mr. Atwell"

open market sale market

"OPEN MARKET SALE BY STELLA MARIS FOUNDATION"

An open market sale is when a company or a shareholder sells shares through the regular stock market to any willing buyer, using ordinary exchange trading rather than private deals. It matters to investors because it increases the number of shares available and can push the price down or change ownership balance—think of it like someone putting extra items on a supermarket shelf for any shopper to buy, which can lower the item's price if supply suddenly grows.

FAQ

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

What share sale is being reported for NICOLET BANKSHARES INC (NIC)?

The notice covers a planned open market sale by Stella Maris Foundation of 300 shares of Nicolet Bankshares common stock, to be sold by August 25, 2026, under Rule 144.

Who is the selling person in this Form 144 for NIC?

The selling person is Robert B. Atwell, a director of Nicolet Bankshares, Inc. He filed the notice in his capacity related to shares held by Stella Maris Foundation, where he serves as president.

What recent sales of NIC shares are disclosed in this filing?

The filing discloses that 2,662 common shares of Nicolet Bankshares were sold on July 24, 2026, for total proceeds of $453,188.09, by Robert B. Atwell, care of Nicolet National Bank.

What is Stella Maris Foundation’s role in the NIC share sale?

Stella Maris Foundation, a 501(c)(3) charitable organization, holds the 300 shares to be sold in the open market. As its president, Robert B. Atwell may dispose of shares with communication from the Stella Maris board.

Does Robert B. Atwell claim an economic interest in the NIC shares sold by Stella Maris Foundation?

No. The filing states that Robert B. Atwell disclaims any pecuniary interest in the sale of securities completed by Stella Maris Foundation.

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

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Available on EDGAR 08/25/2026 - 11:00 AM EDT Accepted by SEC EDGAR 08/25/2026 - 11:00 AM 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	0001253903
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	NICOLET BANKSHARES INC
SEC File Number	001-37700
Address of Issuer	111 N WASHINGTON ST GREEN BAY WISCONSIN 54301
Phone	920 430 1400
Name of Person for Whose Account the Securities are To Be Sold	ATWELL ROBERT BRUCE
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	Director
Relationship to Issuer	STELLA MARIS FOUNDATION

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	CHARLES SCHWAB & CO., INC. 3000 SCHWAB WAY WEST LAKE TX 76262	300	51882.00	21251905	08/25/2026	NYSE

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	12/11/2024	GIFTED SHARES	ROBERT B. ATWELL		11/22/2022	300	08/25/2026	OPEN MARKET SALE BY STELLA MARIS FOUNDATION

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
ROBERT B. ATWELL C/O NICOLET NATIONAL BANK 111 N. WASHINGTON ST. GREEN BAY WI 54301	COMMON	07/24/2026	2662	453188.09

144: Remarks and Signature

Remarks	This Form 144 is being filed by Robert B. Atwell, Board of Director of Nicolet Bankshares, Inc. Mr. Atwell is the President of Stella Maris Foundation, a 501(c)(3) charitable organization, in which Mr. Atwell may dispose shares held by Stella Maris Foundation with Stella Maris board communication, as President. Mr. Atwell disclaims any pecuniary interest in the sale of securities completed by Stella Maris Foundation.
Date of Notice	08/25/2026
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	Robert B. Atwell
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)