FIBK executive awarded 2,247 restricted stock units

Boschee Ryan J. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Boschee Ryan J. reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC reported that Chief Credit Officer Ryan J. Boschee received an equity award in the form of restricted stock units. The grant covers 2,247 shares of common stock at no purchase price, increasing his directly held and awarded stake to 16,777 shares.

The footnote explains that these shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan. The units vest on June 1, 2029, subject to his continued employment through that date, making this a long-term, service-based compensation award rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 2,247 shares

Grant/Award 1 txn

Insider Boschee Ryan J.

Role Chief Credit Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,247	$0.00	$0.00

Holdings After Transaction: Common Stock — 16,777 shares (Direct)

Footnotes (1)

1. F1. Shares issuable upon vesting of restricted stock units granted to the reporting person pursuant to the Registrant's 2023 Equity and Incentive Plan. The restricted stock units vests on June 1, 2029, subject to the reporting person's continued employment through the vesting date.

Key Figures

RSUs granted: 2,247 shares Grant price: $0.0000 per share Holdings after transaction: 16,777 shares +1 more

4 metrics

RSUs granted 2,247 shares Restricted stock units awarded on June 1, 2026

Grant price $0.0000 per share Equity award with no purchase price

Holdings after transaction 16,777 shares Total directly held and awarded after grant

Vesting date June 1, 2029 RSUs vest subject to continued employment

Key Terms

restricted stock units, 2023 Equity and Incentive Plan, vesting, Grant, award, or other acquisition

4 terms

restricted stock units financial

"Shares issuable upon vesting of restricted stock units granted to the reporting person"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2023 Equity and Incentive Plan financial

"granted to the reporting person pursuant to the Registrant's 2023 Equity and Incentive Plan"

vesting financial

"The restricted stock units vests on June 1, 2029, subject to the reporting person's continued employment"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

FAQ

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

What insider transaction did FIBK Chief Credit Officer Ryan Boschee report?

Ryan J. Boschee reported receiving 2,247 restricted stock units of FIRST INTERSTATE BANCSYSTEM INC common stock. The grant is part of his compensation and was awarded at no purchase price, increasing his total directly held and awarded holdings to 16,777 shares.

Are Ryan Boschee’s new FIBK shares an open-market purchase or a grant?

The 2,247 FIBK shares are a grant of restricted stock units, not an open-market purchase. They were awarded under the 2023 Equity and Incentive Plan as compensation, with no cash paid per share by Boschee for this acquisition.

When do Ryan Boschee’s newly granted FIBK restricted stock units vest?

The restricted stock units vest on June 1, 2029, according to the footnote. Vesting is subject to Boschee’s continued employment through that date, meaning he must remain with FIRST INTERSTATE BANCSYSTEM INC until then to receive the underlying shares.

How many FIBK shares does Ryan Boschee hold after this Form 4 transaction?

After the award of 2,247 restricted stock units, Boschee’s total directly held and awarded position is 16,777 shares. This figure reflects his holdings following the reported transaction in FIRST INTERSTATE BANCSYSTEM INC common stock on the Form 4.

Under which plan were Ryan Boschee’s FIBK restricted stock units granted?

The restricted stock units were granted pursuant to FIRST INTERSTATE BANCSYSTEM INC’s 2023 Equity and Incentive Plan. This plan is used to provide equity-based compensation, aligning executive interests with shareholders through long-term stock-based awards.

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

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Accepted by SEC EDGAR 06/03/2026 - 01:49 PM EDT 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^*

Boschee Ryan J.

(Last) (First) (Middle)

P.O. BOX 30918

(Street)

BILLINGS MONTANA 59116-0918

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FIRST INTERSTATE BANCSYSTEM INC [ FIBK ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Credit Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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
Common Stock	06/01/2026		A		2,247(1)	A	$0	16,777	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:

1. Shares issuable upon vesting of restricted stock units granted to the reporting person pursuant to the Registrant's 2023 Equity and Incentive Plan. The restricted stock units vests on June 1, 2029, subject to the reporting person's continued employment through the vesting date.

Remarks:

	/s/ Kirk D. Jensen, Attorney-in-Fact for Reporting Person	06/03/2026
	** 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)