{"transactions":[{"id":903422,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-02-17T21:30:16.000Z","date":"2025-12-08","kind":"gift","planned":false,"acquired":true,"shares":550,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 25,119 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 (550 of which were received as a gift on August 8, 2025 but inadvertently previously reported incorrectly as held directly), 68,942 shares held of record by Jeremy Scott Trustee, 2025 Grantor Retained Annuity Irrevocable Trust, and 3,380 shares held of record by Jeremy Scott's spouse (550 of which were received as a gift as described in the table)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 25,119 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 (550 of which were received as a gift on August 8, 2025 but inadvertently previously reported incorrectly as held directly), 68,942 shares held of record by Jeremy Scott Trustee, 2025 Grantor Retained Annuity Irrevocable Trust, and 3,380 shares held of record by Jeremy Scott's spouse (550 of which were received as a gift as described in the table)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities to which this footnote relates. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3513549,"source":{"system":"sec-edgar","filing":"0001493152-26-007143","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/860413/000149315226007143/ownership.xml","form_type":"5"}},{"id":903421,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-02-17T21:30:16.000Z","date":"2025-08-04","kind":"gift","planned":false,"acquired":true,"shares":236808,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Reportable beneficial ownership acquired upon receipt of shares by gift by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 of general partner interests in NBAR5 O Limited Partnership, which partnership holds such shares directly and with respect to which the reporting persons, as applicable, previously held only limited partner interests. The reporting persons disclaim beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Reportable beneficial ownership acquired upon receipt of shares by gift by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 of general partner interests in NBAR5 O Limited Partnership, which partnership holds such shares directly and with respect to which the reporting persons, as applicable, previously held only limited partner interests. The reporting persons disclaim beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":236808,"source":{"system":"sec-edgar","filing":"0001493152-26-007143","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000149315226007143/ownership.xml","form_type":"5"}},{"id":1047177,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-09-06T01:39:13.000Z","date":"2025-08-05","kind":"other","planned":false,"acquired":true,"shares":216,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"see footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 93,511 shares held of record following both transactions reported herein by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, and 2,830 shares held of record by Jeremy Scott's spouse."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3512449,"source":{"system":"sec-edgar","filing":"0001641172-25-026792","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225026792/ownership.xml","form_type":"4"}},{"id":1047176,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-09-06T01:39:13.000Z","date":"2025-09-03","kind":"gift","planned":false,"acquired":true,"shares":22928,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"see footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 93,511 shares held of record following both transactions reported herein by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, and 2,830 shares held of record by Jeremy Scott's spouse."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3512233,"source":{"system":"sec-edgar","filing":"0001641172-25-026792","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225026792/ownership.xml","form_type":"4"}},{"id":1084965,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-07-18T20:18:10.000Z","date":"2024-12-05","kind":"gift","planned":false,"acquired":true,"shares":475,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes these 475 shares received by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Includes these 475 shares received by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3489305,"source":{"system":"sec-edgar","filing":"0001641172-25-020230","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225020230/ownership.xml","form_type":"5"}},{"id":1084964,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-07-18T20:18:10.000Z","date":"2024-12-05","kind":"gift","planned":false,"acquired":true,"shares":475,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes these 475 shares received by Jeremy Scott's spouse as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Includes these 475 shares received by Jeremy Scott's spouse as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3488830,"source":{"system":"sec-edgar","filing":"0001641172-25-020230","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225020230/ownership.xml","form_type":"5"}}]}