First Interstate BancSystem (NASD: FIBK) trust plans 20,000-share sale

Rhea-AI Filing Summary

The Jonathan R. Scott Trust dtd 11/13/2004 plans to sell 20,000 shares of First Interstate BancSystem (FIBK) common stock through Goldman Sachs & Co. LLC. The planned sale has an aggregate market value of 804400, with a proposed sale date of July 16, 2026 on NASD.

The trust reports prior sales in the past three months, including 53,504 shares for 1895186.59 on April 30, 2026, 12,892 shares for 458754.08 on June 4, 2026, 4,500 shares for 163314 on June 17, 2026, and 9,390 shares for 339044.73 on June 18, 2026. The securities were originally acquired as gifts on July 1, 1989 and November 3, 1983 from a Scott family member with no payment.

Key Figures

Shares planned for sale: 20000 Aggregate market value of planned sale: 804400 Planned sale date: 07/16/2026 +4 more

7 metrics

Shares planned for sale 20000 Number of common shares the trust plans to sell through Goldman Sachs & Co. LLC

Aggregate market value of planned sale 804400 Aggregate market value associated with the 20000 shares to be sold

Planned sale date 07/16/2026 Proposed date for the 20000-share sale on NASD

Shares sold on 04/30/2026 53504 Common shares sold by the trust for 1895186.59 on 04/30/2026

Shares sold on 06/04/2026 12892 Common shares sold by the trust for 458754.08 on 06/04/2026

Shares sold on 06/17/2026 4500 Common shares sold by the trust for 163314 on 06/17/2026

Shares sold on 06/18/2026 9390 Common shares sold by the trust for 339044.73 on 06/18/2026

Key Terms

Securities To Be Sold, Securities Sold During The Past 3 Months, NASD, Acquired as a gift

4 terms

Securities To Be Sold regulatory

"144: Securities To Be Sold Common | 07/01/1989 | Acquired as a gift"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months Jonathan R. Scott Trust dtd 11/13/2004"

NASD market

"20000 | 804400 | 97142879 | 07/16/2026 | NASD"

The NASD (National Association of Securities Dealers) was the self‑regulatory organization that created and enforced rules for broker‑dealers and supervised trading conduct, functioning like a referee for the securities industry. For investors, its role mattered because those rules and oversight aimed to reduce fraud, ensure fair dealing and maintain confidence in markets—factors that influence the safety of investments and the reputation and behavior of brokerage firms.

Acquired as a gift financial

"Common | 07/01/1989 | Acquired as a gift | Scott Family Member"

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Available on EDGAR 07/16/2026 - 04:43 PM Accepted by SEC EDGAR 07/16/2026 - 04:42 PM Learn about SEC filing dates

FAQ

What share sale does the Jonathan R. Scott Trust report for FIBK?

The Jonathan R. Scott Trust plans to sell 20,000 shares of First Interstate BancSystem common stock. The notice lists an aggregate market value of 804400 and a proposed sale date of July 16, 2026 on NASD, using Goldman Sachs & Co. LLC as broker.

Which broker will handle the planned FIBK stock sale?

The planned sale of 20,000 First Interstate BancSystem common shares will be handled by Goldman Sachs & Co. LLC. The transaction is scheduled for July 16, 2026 and is identified as trading on NASD in the filing details.

What FIBK shares has the Jonathan R. Scott Trust sold in the past 3 months?

The trust reports selling 53,504 shares for 1895186.59 on April 30, 2026; 12,892 shares for 458754.08 on June 4, 2026; 4,500 shares for 163314 on June 17, 2026; and 9,390 shares for 339044.73 on June 18, 2026.

How were the FIBK shares being sold by the trust originally acquired?

The shares were acquired as gifts from a Scott family member. The trust reports acquisition dates of July 1, 1989 for 10,512 shares and November 3, 1983 for 9,488 shares, with the nature of payment listed as “None.”

What is the aggregate market value of FIBK shares the trust plans to sell?

The planned sale of 20,000 First Interstate BancSystem common shares has an aggregate market value of 804400. This value is tied to the proposed July 16, 2026 transaction handled through Goldman Sachs & Co. LLC on NASD.

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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	20000	804400	97142879	07/16/2026	NASD

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	07/01/1989	Acquired as a gift	Scott Family Member		02/15/1972	10512	07/01/1989	None
Common	11/03/1983	Acquired as a gift	Scott Family Member		02/15/1972	9488	11/03/1983	None

* 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
Jonathan R. Scott Trust dtd 11/13/2004 401 North 31st Street Billings MT 59101	Common	04/30/2026	53504	1895186.59
Jonathan R. Scott Trust dtd 11/13/2004 401 North 31st Street Billings MT 59101	Common	06/04/2026	12892	458754.08
Jonathan R. Scott Trust dtd 11/13/2004 401 North 31st Street Billings MT 59101	Common	06/17/2026	4500	163314
Jonathan R. Scott Trust dtd 11/13/2004 401 North 31st Street Billings MT 59101	Common	06/18/2026	9390	339044.73

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)