First Interstate BancSystem, Inc. Form 4 Filings

FIRST INTERSTATE BANCSYSTEM INC (FIBK) reported that Chief Banking Officer Christopher L. Shepler had 222 shares of common stock disposed on September 10, 2026 to cover minimum required withholding taxes upon vesting of previously unvested shares, at a reference price of $36.88 per share. After this tax-withholding disposition, he holds 13,018 shares of common stock directly. No Rule 10b5-1 trading plan is reported.

FIRST INTERSTATE BANCSYSTEM INC (FIBK) reported an insider transaction in which an entity associated with ten percent owners linked to Julie A. Scott sold 2,700 shares of common stock on September 16, 2026 at $37.64 per share in an indirect transaction effected by the Julie A Scott Rose Trust. Following this sale, entities associated with the reporting persons held an aggregate of 484,309 indirect shares across several trusts and an LLC, with shared voting and dispositive power noted and certain beneficial ownership expressly disclaimed. No Rule 10b5-1 trading plan is reported.

FIRST INTERSTATE BANCSYSTEM INC (symbol: FIBK) is the issuer of record for a Form 4 filing submitted to the SEC. Lee Jeffery D. reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC (FIBK) granted Chief Operations Officer Jeffery D. Lee 5,417 restricted stock units of common stock on September 14, 2026 under its 2023 Equity and Incentive Plan. These RSUs vest in three equal annual installments starting September 14, 2027, conditioned on his continued employment through each vesting date.

FIRST INTERSTATE BANCSYSTEM INC (FIBK) reported that entities associated with ten percent owner Jonathan R. Scott sold 8,071 shares of common stock on September 14, 2026 at a weighted average price of $37.29, with individual sale prices ranging from $37.10 to $37.44.

After this transaction, the reporting persons indirectly hold 817,738 shares of FIBK common stock through several trusts, an LLC, and shares held by Jonathan Scott’s spouse. The reporting persons state they may be deemed part of a group with other stockholders and disclaim beneficial ownership beyond their pecuniary interests. No Rule 10b5-1 trading plan is indicated.

FIRST INTERSTATE BANCSYSTEM INC (FIBK) had an insider group associated with Jonathan R. Scott report the sale of 16,929 shares of Common Stock on September 11, 2026, in open-market or private transactions at a weighted average price of $37.03 per share, with prices ranging from $37.00 to $37.23. After this transaction, entities and persons associated with Jonathan R. Scott indirectly held 825,809 shares, including shares held by a trust for Jonathan R. Scott, IXL Limited Liability Company, several Scott family trusts, and Jonathan Scott’s spouse, with beneficial ownership of some securities disclaimed except to the extent of pecuniary interest. No Rule 10b5-1 trading plan is reported for these sales.

First Interstate BancSystem Inc. (FIBK) reporting persons associated with ten percent owner Julie A. Scott reported a bona fide gift of 1,350 shares of common stock on July 27, 2026. Following the gift, 487,009 shares are reported as held indirectly.

These 487,009 shares consist of 206,866 shares held by the Julie A Scott Rose Trust dated 5-14-02, 35,233 shares by the Juliana Sarah Scott Rose Trust, 35,232 shares by the Elizabeth Lauren Scott Rose Trust, and 209,678 shares by IXL Limited Liability Company, over which Julie Scott-Rose shares voting and dispositive power with a sibling. Agreements among the reporting persons, the issuer, and other stockholders may cause them to be deemed a group sharing beneficial ownership, though they disclaim beneficial ownership except to the extent of their pecuniary interests.

Ritter Matthew John reported acquisition or exercise transactions in this Form 4 filing.

First Interstate BancSystem Inc. reported that director Matthew John Ritter received an equity award covering 1,806 shares of common stock in the form of restricted stock units under its 2023 Equity and Incentive Plan. These units vest on June 1, 2027, contingent on his continuous service, and represent his directly reported holding after the award.

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.

Entities associated with ten percent owner Jonathan R. Scott reported an open-market sale of 10,000 shares of First Interstate BancSystem common stock at a weighted average price of $40.30 per share, executed in multiple trades between $40.12 and $40.57. Following the sale, they collectively report indirect ownership of 842,738 shares, held across several trusts, an LLC, and Scott’s spouse, while disclaiming beneficial ownership beyond each party’s pecuniary interest.

FIRST INTERSTATE BANCSYSTEM INC reported indirect insider sales of its Common Stock by entities associated with Julie A Scott-Rose. On June 18, 2026, these entities executed three open-market sales totaling 15,000 shares at prices between $35.95 and $35.98 per share. The filing shows that hundreds of thousands of shares remain held indirectly across the Julie A Scott Rose trusts and IXL Limited Liability Company, over which Ms. Scott-Rose shares voting and dispositive power with a sibling and where beneficial ownership is disclaimed beyond any pecuniary interest.

First Interstate BancSystem insider entities associated with Jonathan R. Scott reported an open-market sale of 9,390 shares of Common Stock. The weighted average price was $36.11 per share, with individual trades ranging from $36.00 to $36.33. Following this transaction, the reporting persons collectively hold 852,738 shares indirectly through various trusts, an LLC, and Jonathan Scott's spouse, reflecting continued significant ownership despite the relatively small sale.

FIRST INTERSTATE BANCSYSTEM INC insider entities associated with ten percent owner Jonathan R. Scott reported an open-market sale of 4,500 shares of Common Stock. The shares were sold at a weighted average price of $36.29 per share, with individual trade prices ranging from $36.01 to $36.45.

After this transaction, the filing shows 862,128 shares of Common Stock held indirectly across the Jonathan R. Scott trust, an LLC, several family trusts, and shares held by Scott’s spouse, reflecting a large remaining position.

First Interstate BancSystem insider filings show an indirect open-market sale of 12,892 shares of common stock at a weighted average price of $35.58 per share. The trades occurred at prices ranging from $35.43 to $35.74. After this transaction, entities associated with Jonathan Scott indirectly hold 866,628 shares, including positions in multiple family trusts, an LLC, and shares held by his spouse.

SCUDDER MICHAEL L reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Michael L. Scudder received an equity award of 2,247 shares of Common Stock in the form of restricted stock units. The award was granted at no cash cost per share and increased his directly held position to 4,126 shares.

The restricted stock units were granted under the company’s 2023 Equity and Incentive Plan and are scheduled to vest on June 1, 2027. Vesting is conditioned on Scudder providing continuous service to the company through the earlier of the vesting date or the company’s next annual shareholder meeting.

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.

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.

Cho Alice S reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Alice S. Cho received an equity award of 2,247 shares of Common Stock in the form of restricted stock units. These units were granted at no cash cost to her as part of compensation.

The restricted stock units are issued under the company’s 2023 Equity and Incentive Plan and are scheduled to vest on June 1, 2027, if she continues serving the company through that date or until the next annual shareholder meeting, whichever comes first. Following this grant, she holds 15,792 shares of Common Stock directly.

Johnson Dennis L reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Dennis L. Johnson received an equity award covering 2,247 shares of common stock. The award is in the form of restricted stock units granted under the company’s 2023 Equity and Incentive Plan at a grant price of $0.00 per share.

The restricted stock units are scheduled to vest on June 1, 2027, if Johnson continues to serve the company, or earlier if the company’s next annual shareholder meeting occurs before that date. After this grant, he directly holds 19,455 shares of common stock, highlighting a modest, compensation-related increase in his ownership rather than an open-market purchase.

Boschee Ryan J. reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC reported that Chief Credit Officer Ryan J. Boschee received an equity award in the form of restricted stock units. The grant covers 2,247 shares of common stock at no purchase price, increasing his directly held and awarded stake to 16,777 shares.

The footnote explains that these shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan. The units vest on June 1, 2029, subject to his continued employment through that date, making this a long-term, service-based compensation award rather than an open-market purchase.

Della Camera David reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC Chief Financial Officer David Della Camera reported an equity award of 3,370 shares of common stock in the form of restricted stock units granted at no cash cost. These units are scheduled to vest on June 1, 2029, subject to his continued employment through that date. Following this award, he holds a reported total of 30,048 shares of common stock directly.

FIRST INTERSTATE BANCSYSTEM INC Chief Risk Officer Jolyn M. Kanning received a stock-based compensation award. She was granted 2,247 shares of Common Stock at a price of $0.0000 per share as a grant or award acquisition, increasing her direct holdings to 13,885 shares of Common Stock.

According to the footnote, these 2,247 shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan. The restricted stock units vest on June 1, 2029, subject to her continued employment through that vesting date. The filing also shows 784 shares of Common Stock held indirectly through a 401(k) account.

RYKHUS DANIEL A reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Daniel A. Rykhus reported an equity grant. He received 2,247 shares of Common Stock as a grant or award, with no cash price per share, increasing his directly held position to 31,357 shares after the transaction.

The footnote explains these shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan. The restricted stock units are scheduled to vest on June 1, 2027, provided he continues to serve the company through that date or until the next annual shareholder meeting, whichever occurs first.

Phillips Joyce Ann reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director Joyce Ann Phillips received an equity award tied to future service. She was granted 2,247 shares of Common Stock in the form of restricted stock units under the company’s 2023 Equity and Incentive Plan. These units will vest on June 1, 2027, if she continues serving the company through that date or until the next annual shareholder meeting, whichever comes first. After this grant, her reported direct holdings total 14,599 shares.

Bowman Biff reported acquisition or exercise transactions in this Form 4 filing.

First Interstate BancSystem director Biff Bowman received a grant of 4,353 restricted stock units tied to the company’s common stock. The award was issued at no cash cost and will vest on June 1, 2027, if he continues to serve through that date or the next annual shareholder meeting. Following this award, his reported direct holdings total 24,035 common shares on a post-transaction basis.

Agrawal Renu reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director equity grant: Director Renu Agrawal received an award of 2,247 shares of Common Stock in the form of restricted stock units under the company’s 2023 Equity and Incentive Plan. These units vest on June 1, 2027, subject to her continuous service or the date of the next annual shareholder meeting, whichever is earlier. After this grant, she holds 4,074 shares directly. This is a compensation-related equity award, not an open-market stock purchase.

FIRST INTERSTATE BANCSYSTEM INC General Counsel Kirk D. Jensen reported receiving an equity award tied to company stock. He was granted 2,247 shares of Common Stock as a compensation-related award, at a price of $0.00 per share, classified as a grant or award acquisition.

According to the footnote, these shares are issuable upon vesting of restricted stock units granted under the 2023 Equity and Incentive Plan and will vest on June 1, 2029, subject to his continued employment through that date. After this grant, Jensen directly holds 34,978 shares of Common Stock, indicating this is a routine, non-market compensation award rather than an open-market purchase or sale.

Scott Jeremy reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director and ten percent owner Jeremy Scott reported an equity grant of 2,247 shares of Common Stock at a price of $0.00 per share. These shares are issuable upon vesting of restricted stock units under the 2023 Equity and Incentive Plan.

The restricted stock units vest on June 1, 2027, subject to Scott’s continuous service through the earlier of that vesting date or the company’s next annual shareholder meeting. After this grant, Scott holds 5,743 shares directly and 3,512,449 shares indirectly through affiliated entities.

HEYNEMAN JOHN M JR reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director and 10% owner John M. Heyneman Jr. reported receiving an award of 2,247 shares of Common Stock in the form of restricted stock units at $0.00 per share. These restricted stock units vest on June 1, 2027, subject to his continuous service through that date or until the company’s next annual shareholder meeting, whichever occurs first.

After this grant, he holds 7,471 shares of Common Stock directly and reports additional indirect holdings of 30,154 shares through Bench Ranch LLC, 47,482 shares through Awe' LLC, and 1,414,636 shares held through various trusts, a limited partnership, and family members as described in footnotes. Footnotes also note certain agreements under which he and related parties may be deemed part of a group that shares beneficial ownership, while disclaiming beneficial ownership beyond any pecuniary interest.

Scott James R. Jr reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC director and 10% owner James R. Scott Jr. received a grant of 2,247 shares of common stock at a price of $0.00 per share as a compensation-related award. According to the footnotes, these shares are issuable upon vesting of restricted stock units granted under the 2023 Equity and Incentive Plan.

The restricted stock units vest on June 1, 2027, subject to his continuous service through that date or the date of the company’s next annual shareholder meeting, if earlier. Following the grant, he directly holds 80,792 shares of common stock and indirectly holds 1,952,320 shares through JS Investments Limited Partnership and two GST exempt trusts. The reporting persons may be deemed part of a group and to share beneficial ownership, but they disclaim beneficial ownership except to the extent of their pecuniary interest.

FIRST INTERSTATE BANCSYSTEM INC insider entities associated with Jonathan R. Scott reported an open-market sale of 53,504 shares of Common Stock at a weighted average price of $35.42 per share. After the sale, they report indirect beneficial ownership of 879,520 shares.

The filing explains that the price reflects multiple trades between $35.13 and $35.70. The indirectly held shares are composed of holdings across several Scott family trusts, an LLC, and shares held by Jonathan Scott’s spouse, and the reporting persons note they may be deemed part of a group sharing beneficial ownership, subject to their pecuniary interest.

FIRST INTERSTATE BANCSYSTEM INC reported an insider Form 4 showing an open-market sale of 3,000 shares of common stock at a weighted average price of $33.45 per share. The shares are held indirectly through trusts, an LLC, and a spouse account associated with Jonathan R. Scott.

After the sale, these indirect holdings total 933,024 shares, including large positions in the Jonathan R Scott Trust dated 4/21/04, IXL Limited Liability Company, three Scott family trusts, and shares held by Scott’s spouse. The sale represents a small portion of the overall reported indirect stake.

FIRST INTERSTATE BANCSYSTEM INC Chief Financial Officer David Della Camera reported a routine tax-related share disposition. On the vesting of a previously reported restricted stock unit award, 1,307 shares of common stock were withheld at $33.22 per share to cover his tax obligations. After this withholding, he owns 26,678 shares of common stock directly, and the filing does not reflect any open-market buying or selling.

FIRST INTERSTATE BANCSYSTEM INC General Counsel Kirk D. Jensen reported a tax-related share disposition. On the vesting of a previously reported restricted stock unit award, 1,375 shares of common stock were withheld at $33.22 per share to cover his tax obligations. After this withholding, he directly holds 32,731 shares of common stock. This was not an open-market sale but a routine tax-withholding event linked to equity compensation.

FIRST INTERSTATE BANCSYSTEM INC President and CEO James A. Reuter reported a routine share disposition related to tax withholding. On March 16, 2026, 5,125 shares of common stock were withheld at $33.22 per share to satisfy tax obligations upon vesting of a previously reported restricted stock unit award. After this transaction, Reuter directly holds 86,904 shares of common stock.

First Interstate BancSystem executive Kristina Robbins reported a routine tax-withholding transaction in company stock. On this Form 4, 1,241 shares of common stock were withheld at $33.22 per share to cover her tax obligations when a previously reported restricted stock unit award vested. After this non‑market disposition, she holds 18,887 shares directly.

FIRST INTERSTATE BANCSYSTEM INC executive Lori Meyer, EVP and Chief Information Officer, reported a routine tax-related share disposition. On the vesting of a previously reported restricted stock unit award, 1,550 shares of common stock were withheld on March 16, 2026 to satisfy tax withholding obligations at $33.22 per share. After this withholding, Meyer directly holds 14,270 shares of common stock. This was not an open-market purchase or sale, but a non-discretionary tax-withholding event.

Shepler Christopher L. reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC Chief Banking Officer Christopher L. Shepler received a grant of 5,971 shares of common stock at $33.13 per share as an equity award. These shares are issuable upon vesting of restricted stock units under the company’s 2023 Equity and Incentive Plan.

The restricted stock units vest in three equal annual installments beginning on March 15, 2027, subject to Shepler’s continued employment through each vesting date. Following this award, his directly owned common stock holdings reported in this filing total 9,870 shares, indicating a routine compensation-related equity grant rather than an open-market purchase.

Robbins Kristina reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC EVP and Chief Operations Officer Kristina Robbins received an equity award representing 4,044 shares of Common Stock as compensation. The award consists of restricted stock units granted under the company’s 2023 Equity and Incentive Plan at a reference price of $33.13 per share.

The restricted stock units vest in three equal annual installments beginning on March 15, 2027, conditioned on her continued employment through each vesting date. Following this grant, Robbins is reported as beneficially owning 20,128 shares of Common Stock directly.

Reuter James A reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC President and CEO James A. Reuter received an equity award of 31,392 shares of Common Stock at $33.13 per share. These shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan.

The restricted stock units vest in three equal annual installments beginning on March 15, 2027, and each installment requires his continued employment through the applicable vesting date. Following this grant, Reuter directly holds 92,029 shares of the company’s common stock.

Jones Nathan R reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC disclosed that Chief Risk Officer Nathan R. Jones received a grant of 3,843 shares of Common Stock, effectively tied to restricted stock units valued at $33.13 per share. This is a compensation-related award, not an open-market purchase.

According to the footnote, these restricted stock units were granted under the company’s 2023 Equity and Incentive Plan and will vest in three equal annual installments beginning on March 15, 2027, subject to Jones’s continued employment through each vesting date. Following this award, he holds 3,843 shares directly.

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.

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.

Della Camera David reported acquisition or exercise transactions in this Form 4 filing.

FIRST INTERSTATE BANCSYSTEM INC reported that Chief Financial Officer David Della Camera received a grant of 6,279 shares of common stock valued at $33.13 per share. Following this equity award, he holds 27,985 shares directly.

The shares are issuable upon vesting of restricted stock units granted under the company’s 2023 Equity and Incentive Plan. These units vest in three equal annual installments beginning on March 15, 2027, and each vesting date requires his continued employment with the company.

First Interstate BancSystem Inc. insider entities reported small stock sales. On January 5, 2026, entities associated with the Scott family sold 3,173 shares of First Interstate BancSystem common stock at a weighted average price of $36.20. On January 6, 2026, they sold an additional 1,827 shares at a weighted average price of $36.92. After these transactions, 936,024 shares of common stock were reported as beneficially owned on an indirect basis. The filing explains that these holdings are spread across the Jonathan R. Scott trust, IXL Limited Liability Company, several Scott family trusts, and Jonathan Scott’s spouse, and notes that the reporting persons may be deemed part of a group while disclaiming beneficial ownership beyond their pecuniary interest.

First Interstate BancSystem Inc. director and 10% owner Jeremy Scott reported a transaction in the company’s common stock dated 12/08/2025. The filing shows a code "G" transaction involving 550 shares at a stated price of $0, after which Scott’s directly held shares totaled 3,496.

The filing also reports 3,512,449 shares of common stock as indirectly beneficially owned. According to the footnotes, these are composed of 3,416,108 shares held of record by NBar 5 Limited Partnership, 93,511 shares held of record by the Jeremy Scott Revocable Trust, and 2,830 shares held of record by Scott’s spouse. The reporting persons state that, due to certain agreements with other stockholders, they may be deemed part of a group and may be deemed to share beneficial ownership, while each disclaims beneficial ownership except to the extent of its pecuniary interest.

First Interstate BancSystem Inc. director-affiliated entities reported internal transfers of the company’s common stock. On 12/08/2025 and 12/12/2025, 755 shares were transferred each time at a price of $0, coded as bona fide gifts, including moves from James R. Scott’s spouse and from the James R. Scott Trust to the Foundation for Community Vitality.

A footnote explains that 4,433,211 common shares are held of record across multiple vehicles associated with James R. Scott, including trusts, a 401(k), foundations, a limited partnership, a conservatorship and a separate trust. The reporting persons state they may be deemed part of a group with certain other stockholders under existing agreements and disclaim beneficial ownership of such securities beyond their pecuniary interests.

First Interstate BancSystem Inc. (FIBK) insiders reported a sale of company stock by a group of related reporting persons who are directors and 10% owners. On 11/21/2025, they sold 30,432 shares of common stock at a price of $31.03 per share.

After this transaction, they report indirect beneficial ownership of 1,414,636 shares of common stock, as detailed in the footnotes describing various trusts, family members, and an investment partnership. Additional positions include 47,482 shares held indirectly by Awe' LLC, 5,224 shares held directly, and 30,154 shares held indirectly by Bench Ranch LLC.

The filing notes that, due to certain agreements with other stockholders, the reporting persons may be deemed part of a group and may be deemed to share beneficial ownership of the reported securities, although each disclaims beneficial ownership beyond its pecuniary interest.

First Interstate BancSystem Inc. (FIBK) reported an insider equity award to its Chief Banking Officer on a Form 4. On 11/24/2025, the officer acquired 1,591 shares of common stock at a price of $31.42 per share, increasing direct beneficial ownership to 3,899 shares after the transaction.

The new shares are tied to restricted stock units granted under the company’s 2023 Equity and Incentive Plan. These units will vest in three equal annual installments beginning on November 24, 2026, and each installment requires the officer to remain employed through the applicable vesting date.

First Interstate BancSystem (FIBK) filed a Form 4 reflecting the reporting person’s status as a Director and 10% Owner and reporting 5,224 shares of common stock held directly following the reported event on 11/12/2025.

The filing notes that an earlier submission on November 12, 2025 inadvertently omitted the reporting person’s direct holdings, which are properly reflected here. The form indicates individual filing status and direct ownership; no transaction details or prices are listed in the provided excerpt.