FIBK CIO granted 2,247 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 a grant of 2,247 shares of Common Stock as a stock award. The award consists of restricted stock units granted under the company’s 2023 Equity and Incentive Plan, which vest on June 1, 2029, subject to her continued employment through that date.

After the award, Meyer directly holds 16,517 shares of Common Stock and indirectly holds 1,232 shares through a 401(k) plan. The filing also corrects a prior report of shares withheld for tax obligations on a past vesting, revising that figure to 813 shares instead of 1,550.

Insider Trade Summary

Grant/Award: 2,247 shares

Grant/Award 2 txns

Insider Meyer Lori

Role EVP, Chief Information Officer

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

Holdings After Transaction: Common Stock — 16,517 shares (Direct); Common Stock — 1,232 shares (Indirect, 401k)

Footnotes (2)

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.
2. F2. The number of shares reported herein reflects a correction to the reporting persons beneficial ownership. A Form 4 filed on March 18, 2026 incorrectly reported that 1,550 shares of common stock were withheld to satisfy tax withholding obligations upon vesting of a previously reported restricted stock award. The correct number of shares withheld for such purpose was 813.

Key Figures

RSU grant size: 2,247 shares Direct holdings after grant: 16,517 shares Indirect 401(k) holdings: 1,232 shares +3 more

6 metrics

RSU grant size 2,247 shares Restricted stock units granted to Lori Meyer

Direct holdings after grant 16,517 shares Meyer’s direct Common Stock ownership following transaction

Indirect 401(k) holdings 1,232 shares Common Stock held indirectly through 401(k) plan

Vesting date June 1, 2029 RSUs vest subject to continued employment

Correct tax-withheld shares 813 shares Revised number of shares withheld for prior tax obligations

Previously misreported withheld shares 1,550 shares Incorrect amount reported on March 18, 2026 Form 4

Key Terms

restricted stock units, 2023 Equity and Incentive Plan, beneficial ownership, tax withholding obligations

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"

beneficial ownership financial

"The number of shares reported herein reflects a correction to the reporting persons beneficial ownership"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

tax withholding obligations financial

"shares of common stock were withheld to satisfy tax withholding obligations upon vesting"

FAQ

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

What insider transaction did FIBK executive Lori Meyer report?

Lori Meyer reported receiving 2,247 shares of First Interstate BancSystem Common Stock as a stock award. The award is in the form of restricted stock units granted as part of her executive compensation under the company’s 2023 Equity and Incentive Plan.

When do Lori Meyer’s new FIBK restricted stock units vest?

The 2,247 restricted stock units granted to Lori Meyer vest on June 1, 2029. Vesting is contingent on her continued employment with First Interstate BancSystem through that date, aligning the award with long-term retention and performance incentives.

How many FIBK shares does Lori Meyer own after this Form 4?

Following the reported transactions, Lori Meyer directly holds 16,517 shares of First Interstate BancSystem Common Stock. She also indirectly holds 1,232 shares through a 401(k) plan, reflecting her combined reported equity position with the company.

Was there a correction to Lori Meyer’s prior FIBK share reporting?

Yes. The filing states that a prior Form 4 incorrectly showed 1,550 shares withheld for taxes upon a vesting. The correct number of First Interstate BancSystem shares withheld for tax withholding obligations on that earlier award was 813 shares, reducing the prior reported amount.

Is Lori Meyer’s latest FIBK transaction a market purchase or sale?

The transaction is neither a market purchase nor a sale. It is a grant or award of 2,247 restricted stock units at no purchase price, provided as part of Lori Meyer’s executive compensation rather than an open-market trade in First Interstate BancSystem shares.

What compensation plan governs Lori Meyer’s new FIBK stock award?

The restricted stock units granted to Lori Meyer were issued under First Interstate BancSystem’s 2023 Equity and Incentive Plan. This plan authorizes equity-based compensation awards such as restricted stock units to executives and employees to align their interests with shareholders.

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^*

Meyer Lori

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Information 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		2,247(1)	A	$0	16,517(2)	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 vests on June 1, 2029, subject to the reporting person's continued employment through the vesting date.

2. The number of shares reported herein reflects a correction to the reporting persons beneficial ownership. A Form 4 filed on March 18, 2026 incorrectly reported that 1,550 shares of common stock were withheld to satisfy tax withholding obligations upon vesting of a previously reported restricted stock award. The correct number of shares withheld for such purpose was 813.

Remarks:

	/s/ Kirk D. Jensen, as 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)