First Interstate exec granted 3,370 restricted stock units

FIRST INTERSTATE BANCSYSTEM INC reported that Chief Banking Officer Christopher L. Shepler acquired 3,370 shares of Common Stock through a grant of restricted stock units under the company’s 2023 Equity and Incentive Plan.

Rhea-AI Filing Summary

FIRST INTERSTATE BANCSYSTEM INC reported that Chief Banking Officer Christopher L. Shepler acquired 3,370 shares of Common Stock through a grant of restricted stock units under the company’s 2023 Equity and Incentive Plan. These units vest on June 1, 2029, conditioned on his continued employment through that date.

Following this compensation-related award, Shepler’s directly owned common shares total 13,240. The transaction carried a stated price of $0.00 per share, reflecting that it was an equity grant rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 3,370 shares

Grant/Award 1 txn

Insider Shepler Christopher L.

Role Chief Banking Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,370	$0.00	$0.00

Holdings After Transaction: Common Stock — 13,240 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: 3,370 shares Grant price: $0.00 per share Shares after transaction: 13,240 shares +1 more

4 metrics

RSUs granted 3,370 shares Restricted stock units granted on June 1, 2026

Grant price $0.00 per share Equity award, not open-market purchase

Shares after transaction 13,240 shares Total directly owned common shares 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

"restricted stock units 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 did FIRST INTERSTATE BANCSYSTEM INC (FIBK) disclose about Christopher Shepler in this Form 4?

The filing shows Chief Banking Officer Christopher L. Shepler received 3,370 restricted stock units of Common Stock as an equity grant. These units were awarded at a stated price of $0.00 per share, reflecting compensation rather than an open-market purchase.

How many shares did Christopher Shepler receive and what is his new total holding in FIBK stock?

Christopher Shepler was granted 3,370 restricted stock units of Common Stock. After this grant, his directly owned common shares total 13,240, according to the Form 4, providing context on the scale of this award relative to his overall position.

Are the 3,370 FIBK shares granted to Christopher Shepler immediately vested or subject to conditions?

The 3,370 shares are issuable upon vesting of restricted stock units and are not immediately vested. They will vest on June 1, 2029, provided Shepler remains continuously employed with the company through that vesting date.

Was Christopher Shepler’s FIBK transaction an open-market buy or a compensation award?

The transaction is a compensation award, not an open-market buy. It is coded as a grant or award acquisition, with a transaction price of $0.00 per share, indicating restricted stock units granted under the 2023 Equity and Incentive Plan.

What plan governs the restricted stock units granted to Christopher Shepler at FIRST INTERSTATE BANCSYSTEM INC?

The restricted stock units were granted under FIRST INTERSTATE BANCSYSTEM INC’s 2023 Equity and Incentive Plan. This plan provides for equity-based awards, such as RSUs, that typically align executive compensation with long-term shareholder interests through share-based incentives.

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

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Accepted by SEC EDGAR 06/03/2026 - 01:50 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^*

Shepler Christopher L.

(Last) (First) (Middle)

401 N. 31ST ST.

(Street)

BILLINGS MONTANA 59101

(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 Banking 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		3,370(1)	A	$0	13,240	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)