First Interstate (FIBK) grants 3,951 restricted stock units to General Counsel

Rhea-AI Filing Summary

Jensen Kirk D reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC General Counsel Kirk D. Jensen received an equity compensation award of 3,951 shares of Common Stock on March 15, 2026, reported as a grant/award at $33.13 per share. These are restricted stock units that vest in three equal annual installments beginning on March 15, 2027, subject to his continued employment through each vesting date. After this award, he directly owns 34,106 shares of the company’s common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Jensen Kirk D

Role General Counsel

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,951	$33.13	$131K

Holdings After Transaction: Common Stock — 34,106 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Jensen Kirk D

(Last) (First) (Middle)

PO BOX 30918

(Street)

BILLINGS MT 59116

(City) (State) (Zip)

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)
	General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/15/2026		A		3,951(1)	A	$33.13	34,106	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 in three equal annual installments beginning on March 15, 2027, subject to the reporting person's continued employment through each applicable vesting date.

Remarks:

	/s/ Brian M. Murphy, Attorney-in-fact for Reporting Person	03/17/2026
	** 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.

FAQ

What insider transaction did FIRST INTERSTATE BANCSYSTEM (FIBK) report for Kirk D. Jensen?

FIRST INTERSTATE BANCSYSTEM reported that General Counsel Kirk D. Jensen received a grant of 3,951 shares of Common Stock on March 15, 2026. The filing classifies this as a grant/award acquisition, not an open-market share purchase or sale.

How many FIRST INTERSTATE BANCSYSTEM (FIBK) shares were granted and at what price?

Kirk D. Jensen was granted 3,951 shares of Common Stock, recorded at $33.13 per share. This reflects the value used for the equity award, consistent with compensation-related restricted stock units rather than a market transaction in the open market.

What is the vesting schedule for the FIBK restricted stock units granted to Kirk D. Jensen?

The restricted stock units granted to Kirk D. Jensen vest in three equal annual installments starting on March 15, 2027. Vesting is subject to his continued employment with FIRST INTERSTATE BANCSYSTEM through each applicable vesting date noted in the award terms.

How many FIRST INTERSTATE BANCSYSTEM (FIBK) shares does Kirk D. Jensen hold after this award?

After this equity award, Kirk D. Jensen directly holds 34,106 shares of FIRST INTERSTATE BANCSYSTEM common stock. This total reflects his post-transaction direct ownership position as reported in the Form 4 following the March 15, 2026 grant.

Was the FIBK Form 4 transaction an open-market buy or sell by Kirk D. Jensen?

The Form 4 describes the transaction as a grant, award, or other acquisition of shares, coded “A”. It reflects restricted stock units granted as compensation, not an open-market purchase or sale, so no discretionary buying or selling decision is indicated.

Under which plan were the FIBK restricted stock units granted to Kirk D. Jensen?

The footnote states the restricted stock units were granted under FIRST INTERSTATE BANCSYSTEM’s 2023 Equity and Incentive Plan. The units are shares issuable upon vesting, aligning his compensation with long-term shareholder interests through equity-based incentives.