First Interstate director granted 2,247 RSUs

Johnson Dennis L reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Johnson Dennis L reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Dennis L. Johnson received an equity award covering 2,247 shares of common stock. The award is in the form of restricted stock units granted under the company’s 2023 Equity and Incentive Plan at a grant price of $0.00 per share.

The restricted stock units are scheduled to vest on June 1, 2027, if Johnson continues to serve the company, or earlier if the company’s next annual shareholder meeting occurs before that date. After this grant, he directly holds 19,455 shares of common stock, highlighting a modest, compensation-related increase in his ownership rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 2,247 shares

Grant/Award 1 txn

Insider Johnson Dennis L

Role Director

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

Holdings After Transaction: Common Stock — 19,455 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 vest on June 1, 2027, subject to the reporting person's provision of continuous service to the Registrant through the earlier of the applicable vesting date or the date of the Registrant's next annual shareholder meeting.

Key Figures

RSU grant size: 2,247 shares Grant price per share: $0.00 per share Shares after transaction: 19,455 shares +3 more

6 metrics

RSU grant size 2,247 shares Restricted stock units granted on June 1, 2026

Grant price per share $0.00 per share Equity award under 2023 Equity and Incentive Plan

Shares after transaction 19,455 shares Direct common stock holdings following grant

Transaction type Grant, award, or other acquisition (Code A) Non-derivative common stock entry

Vesting date June 1, 2027 RSUs vest subject to continuous service or earlier annual meeting

Acquire transactions 1 transaction Form 4 transaction summary acquireCount

Key Terms

restricted stock units, 2023 Equity and Incentive Plan, continuous service, annual shareholder meeting

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"

continuous service financial

"subject to the reporting person's provision of continuous service to the Registrant"

annual shareholder meeting financial

"through the earlier of the applicable vesting date or the date of the Registrant's next annual shareholder meeting"

A yearly gathering where a company’s owners (shareholders) and its leaders meet to review performance, approve key decisions like electing directors, and vote on issues such as executive pay or major policy changes. Think of it as an annual town hall for people who own part of the business: investors use it to ask questions, influence direction through votes, and gauge management’s plans and transparency, all of which can affect the stock’s outlook.

FAQ

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

What did FIBK director Dennis L. Johnson report in this Form 4?

Dennis L. Johnson reported receiving an equity award covering 2,247 shares of FIRST INTERSTATE BANCSYSTEM INC common stock. The award is structured as restricted stock units granted at $0.00 per share under the 2023 Equity and Incentive Plan, reflecting stock-based compensation rather than an open-market purchase.

How many FIBK shares were granted to Dennis L. Johnson in this award?

The award covers 2,247 shares of FIRST INTERSTATE BANCSYSTEM INC common stock. These are delivered through restricted stock units that will convert into shares upon vesting, aligning Johnson’s compensation with shareholder interests without requiring him to pay a purchase price for the grant.

When do Dennis L. Johnson’s restricted stock units in FIBK vest?

The restricted stock units are scheduled to vest on June 1, 2027, subject to continuous service. Vesting can occur earlier if FIRST INTERSTATE BANCSYSTEM INC holds its next annual shareholder meeting before that date, tying the award’s realization to Johnson’s ongoing board service.

What conditions apply to Dennis L. Johnson’s FIBK restricted stock units?

The units vest only if Dennis L. Johnson provides continuous service to FIRST INTERSTATE BANCSYSTEM INC until June 1, 2027, or until the next annual shareholder meeting, if earlier. This structure encourages continued service by linking the equity compensation directly to tenure on the board.

How many FIBK shares does Dennis L. Johnson own after this transaction?

After this grant, Dennis L. Johnson directly holds 19,455 shares of FIRST INTERSTATE BANCSYSTEM INC common stock. This figure reflects his position following the restricted stock unit award, showing his ongoing equity stake as a director of the company.

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^*

Johnson Dennis L

(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)

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

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	19,455	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 vest on June 1, 2027, subject to the reporting person's provision of continuous service to the Registrant through the earlier of the applicable vesting date or the date of the Registrant's next annual shareholder meeting.

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)