FIBK CIO granted 3,012 restricted stock units

Meyer Lori reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Meyer Lori reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC EVP and Chief Information Officer Lori Meyer received an equity award of 3,012 shares of Common Stock on March 15, 2026. The award is in the form of restricted stock units granted at a reference price of $33.13 per share.

According to the footnote, these restricted stock units will vest in three equal annual installments beginning on March 15, 2027, subject to her continued employment through each vesting date. After this grant, she directly holds 15,820 shares of Common Stock and indirectly holds 1,232 shares through a 401(k) plan, reflecting a routine compensation-related equity grant rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 3,012 shares

Grant/Award 2 txns

Insider Meyer Lori

Role EVP, Chief Information Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,012	$33.13	$100K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 15,820 shares (Direct); Common Stock — 1,232 shares (Indirect, 401k)

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 in three equal annual installments beginning on March 15, 2027, subject to the reporting person's continued employment through each applicable vesting date.

FAQ

What did FIRST INTERSTATE BANCSYSTEM (FIBK) executive Lori Meyer report on this Form 4?

Lori Meyer reported receiving 3,012 restricted stock units tied to Common Stock as a compensation grant. The units were valued at $33.13 per share and are scheduled to vest over three years, starting in March 2027, subject to continued employment.

Is Lori Meyer’s Form 4 transaction in FIBK stock an open-market buy or a compensation grant?

The Form 4 reflects a compensation-related grant, not an open-market purchase. Meyer received 3,012 restricted stock units under the company’s 2023 Equity and Incentive Plan, with vesting in three equal annual installments, contingent on continued employment.

How and when do Lori Meyer’s 3,012 FIBK restricted stock units vest?

The 3,012 restricted stock units vest in three equal annual installments beginning March 15, 2027. Each installment requires Lori Meyer to remain employed through the applicable vesting date, aligning the award with long-term service at the company.

What are Lori Meyer’s reported FIBK share holdings after this Form 4 transaction?

After the grant, Lori Meyer directly holds 15,820 shares of Common Stock. She also indirectly holds 1,232 shares through a 401(k) plan, giving her both direct and retirement-plan exposure to FIRST INTERSTATE BANCSYSTEM equity according to the filing.

Under which plan were Lori Meyer’s FIBK restricted stock units granted?

The restricted stock units were granted under FIRST INTERSTATE BANCSYSTEM’s 2023 Equity and Incentive Plan. This plan is used to deliver equity-based compensation, with vesting tied to ongoing employment, supporting long-term alignment between executives and shareholders.

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Accepted by SEC EDGAR 03/17/2026 - 06:07 PM 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^*

Meyer Lori

(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)
	EVP, Chief Information Officer

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		3,012(1)	A	$33.13	15,820	D
Common Stock								1,232	I	401k

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/ Kirk D. Jensen, as 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.