First Interstate BancSystem (FIBK) grants 1,806 restricted stock units to director

Q: What insider transaction did Brian Kevin Turner report for FIBK?

Brian Kevin Turner reported a grant of 1,806 restricted stock units of First Interstate BancSystem (FIBK). The award was dated July 22, 2026 at a reference price of $38.97 per share and is reported as a direct acquisition, not a market purchase.

Q: How many restricted stock units did FIBK grant to director Brian Kevin Turner?

First Interstate BancSystem granted Brian Kevin Turner 1,806 restricted stock units . These units represent shares of common stock issuable upon vesting and are reported as his entire holding of this award, with 1,806 units shown as owned following the transaction.

Q: Is Brian Kevin Turner’s FIBK Form 4 transaction under a Rule 10b5-1 plan?

This transaction is not indicated as being under a Rule 10b5-1 trading plan. The filing’s Rule 10b5-1 checkbox is marked as false , and no footnote states that the grant was made pursuant to such a pre-arranged plan.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

TURNER BRIAN KEVIN reported acquisition or exercise transactions in this Form 4 filing.

First Interstate BancSystem director Brian Kevin Turner reported an award of 1,806 restricted stock units, representing common stock, on July 22, 2026 at a reference price of $38.97 per share. The units vest on June 1, 2027, contingent on his continuous service, with 1,806 units reported following the award.

Insider Trade Summary

Net Buyer: 1,806 shares

Net Buy 1 txn

Insider TURNER BRIAN KEVIN

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock ^F1	1,806	$38.97	$70K

Holdings After Transaction: Common Stock — 1,806 shares (Direct)

Footnotes (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 vesting date.

Key Figures

Restricted stock units granted: 1,806 shares Grant price per share: $38.97 Shares/units following transaction: 1,806 shares +1 more

4 metrics

Restricted stock units granted 1,806 shares Grant of restricted stock units on 2026-07-22

Grant price per share $38.97 Reference price for RSU award on 2026-07-22

Shares/units following transaction 1,806 shares Total reported common stock/RSUs after the award

Vesting date June 1, 2027 RSUs vest if continuous service is provided through this date

Key Terms

restricted stock units, Equity and Incentive Plan, continuous service

3 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.

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"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/24/2026 - 06:30 PM Accepted by SEC EDGAR 07/24/2026 - 06:30 PM

FAQ

What insider transaction did Brian Kevin Turner report for FIBK?

Brian Kevin Turner reported a grant of 1,806 restricted stock units of First Interstate BancSystem (FIBK). The award was dated July 22, 2026 at a reference price of $38.97 per share and is reported as a direct acquisition, not a market purchase.

How many restricted stock units did FIBK grant to director Brian Kevin Turner?

First Interstate BancSystem granted Brian Kevin Turner 1,806 restricted stock units. These units represent shares of common stock issuable upon vesting and are reported as his entire holding of this award, with 1,806 units shown as owned following the transaction.

When do Brian Kevin Turner’s FIBK restricted stock units vest?

The restricted stock units granted to Brian Kevin Turner vest on June 1, 2027. Vesting is subject to his continuous service with First Interstate BancSystem through that date under the company’s 2023 Equity and Incentive Plan.

What is the reference price for the FIBK restricted stock unit grant to Brian Kevin Turner?

The restricted stock unit grant to Brian Kevin Turner uses a reference price of $38.97 per share. This price is disclosed for the 1,806 units awarded on July 22, 2026, and reflects the per-share value used in reporting the grant.

Is Brian Kevin Turner’s FIBK Form 4 transaction under a Rule 10b5-1 plan?

This transaction is not indicated as being under a Rule 10b5-1 trading plan. The filing’s Rule 10b5-1 checkbox is marked as false, and no footnote states that the grant was made pursuant to such a pre-arranged plan.

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^*

TURNER BRIAN KEVIN

(Last)

(First)

(Middle)

PO BOX 30918

(Street)

BILLINGS

MONTANA

59116

(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)
07/22/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	07/22/2026		A		1,806⁽¹⁾	A	$38.97	1,806	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 vesting date.

Remarks:

	/s/ Brian M. Murphy, Attorney-in-fact for Reporting Person	07/24/2026
	** 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)

Source: View Original Filing on SEC EDGAR