FIRST INTST BANCSYSTEM INC

Ticker: FIBK CUSIP: 32055Y201 Class: Common Stock

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 102,019 Value ($000) $3,530 Avg Close $32.13 Range $28.33 - $35.91

Q3 2025

Shares 108,600 Value ($000) $3,461 Avg Close $30.08 Range $26.44 - $33.09

Q2 2025

Shares 108,203 Value ($000) $3,118 Avg Close $25.62 Range $21.60 - $28.14

Q1 2025

Shares 103,095 Value ($000) $2,954 Avg Close $28.99 Range $25.84 - $31.59

Q4 2024

Shares 103,095 Value ($000) $3,347 Avg Close $30.02 Range $26.60 - $34.12

Q3 2024

Shares 103,084 Value ($000) $3,163 Avg Close $27.10 Range $24.27 - $29.66

Q2 2024

Shares 103,084 Value ($000) $2,863 Avg Close $23.65 Range $21.35 - $25.36

Q1 2024

Shares 102,397 Value ($000) $2,786 Avg Close $23.93 Range $21.64 - $27.27

Q4 2023

Shares 174,410 Value ($000) $5,363 Avg Close $22.41 Range $17.71 - $28.23

Q3 2023

Shares 221,291 Value ($000) $5,519 Avg Close $22.08 Range $18.85 - $25.23

Q2 2023

Shares 221,002 Value ($000) $5,269 Avg Close $20.93 Range $17.61 - $24.79

Q1 2023

Shares 216,502 Value ($000) $6,465 Avg Close $28.73 Range $23.43 - $32.20

Q4 2022

Shares 171,502 Value ($000) $6,629 Avg Close $34.12 Range $30.24 - $37.52

Q3 2022

Shares 156,202 Value ($000) $6,303 Avg Close $32.17 Range $29.33 - $35.35

Q2 2022

Shares 160,202 Value ($000) $6,105 Avg Close $28.16 Range $25.41 - $31.07

Q1 2022

Shares 133,202 Value ($000) $4,898 Avg Close $30.77 Range $27.94 - $35.17

Q4 2021

Shares 61,524 Value ($000) $2,502 Avg Close $32.08 Range $29.12 - $35.07

Q3 2021

Shares 61,524 Value ($000) $2,477 Avg Close $32.44 Range $28.61 - $35.28

Q2 2021

Shares 62,433 Value ($000) $2,612 Avg Close $34.99 Range $31.09 - $37.17

Q1 2021

Shares 60,733 Value ($000) $2,796 Avg Close $33.45 Range $28.62 - $38.67

Q4 2020

Shares 60,726 Value ($000) $2,476 Avg Close $28.24 Range $23.24 - $30.91

Q3 2020

Shares 64,722 Value ($000) $2,061 Avg Close $22.79 Range $19.82 - $25.19

Q2 2020

Shares 65,112 Value ($000) $2,016 Avg Close $22.21 Range $18.56 - $26.25

Q1 2020

Shares 56,271 Value ($000) $1,623 Avg Close $25.51 Range $17.70 - $29.72

Q4 2019

Shares 151,875 Value ($000) $6,367 Avg Close $29.42 Range $26.97 - $30.65

Q3 2019

Shares 80,941 Value ($000) $3,257 Avg Close $27.39 Range $25.57 - $28.80

Q2 2019

Shares 80,941 Value ($000) $3,206 Avg Close $27.59 Range $25.51 - $29.43

Q1 2019

Shares 45,024 Value ($000) $1,793 Avg Close $27.43 Range $24.54 - $29.25

Q4 2018

Shares 44,524 Value ($000) $1,628 Avg Close $28.30 Range $23.64 - $31.56

Q3 2018

Shares 44,524 Value ($000) $1,995 Avg Close $30.14 Range $28.28 - $31.93

Q2 2018

Shares 66,414 Value ($000) $2,803 Avg Close $28.23 Range $25.92 - $30.31

Q1 2018

Shares 60,164 Value ($000) $2,379 Avg Close $27.27 Range $25.33 - $28.53

Q4 2017

Shares 71,274 Value ($000) $2,855 Avg Close $25.78 Range $23.94 - $27.43

Q3 2017

Shares 79,374 Value ($000) $3,036 Avg Close $23.89 Range $22.02 - $25.34

Q2 2017

Shares 43,424 Value ($000) $1,615 Avg Close $24.61 Range $22.12 - $26.78

Q1 2017

Shares 33,000 Value ($000) $1,308 Avg Close $27.13 Range $24.24 - $29.59

Q4 2016

Shares 30,600 Value ($000) $1,302 Avg Close $23.52 Range $19.91 - $27.96

Q3 2016

Shares 30,600 Value ($000) $964 Avg Close $19.18 Range $17.19 - $20.98

Q2 2016

Shares 31,940 Value ($000) $898 Avg Close $17.84 Range $16.91 - $18.79

Q1 2016

Shares 20,000 Value ($000) $563 Avg Close $17.15 Range $15.67 - $18.33

Q4 2015

Shares 20,300 Value ($000) $590 Avg Close $18.14 Range $16.44 - $19.65

Q3 2015

Shares 21,120 Value ($000) $588 Avg Close $17.08 Range $15.94 - $18.02

Q2 2015

Shares 21,200 Value ($000) $588 Avg Close $17.14 Range $16.52 - $17.95

Q1 2015

Shares 21,200 Value ($000) $590 Avg Close $16.04 Range $14.64 - $17.23

Q4 2014

Shares 21,300 Value ($000) $593 Avg Close $16.97 Range $15.81 - $18.14

Q3 2014

Shares 7,600 Value ($000) $202 Avg Close $16.24 Range $15.08 - $17.40

Q2 2014

Shares 10,200 Value ($000) $277 Avg Close $15.76 Range $14.59 - $17.36

Q1 2014

Shares 18,506 Value ($000) $522 Avg Close $15.85 Range $14.50 - $17.54

Q4 2013

Shares 27,506 Value ($000) $780 Avg Close $15.43 Range $13.64 - $17.60

Q3 2013

Shares 18,706 Value ($000) $452 Avg Close $13.86 Range $12.12 - $14.95

Q2 2013

Shares 35,094 Value ($000) $727 Avg Close $11.61 Range $10.46 - $12.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	102,019	$3,530	$32.13	$28.33 - $35.91
Q3 2025	108,600	$3,461	$30.08	$26.44 - $33.09
Q2 2025	108,203	$3,118	$25.62	$21.60 - $28.14
Q1 2025	103,095	$2,954	$28.99	$25.84 - $31.59
Q4 2024	103,095	$3,347	$30.02	$26.60 - $34.12
Q3 2024	103,084	$3,163	$27.10	$24.27 - $29.66
Q2 2024	103,084	$2,863	$23.65	$21.35 - $25.36
Q1 2024	102,397	$2,786	$23.93	$21.64 - $27.27
Q4 2023	174,410	$5,363	$22.41	$17.71 - $28.23
Q3 2023	221,291	$5,519	$22.08	$18.85 - $25.23
Q2 2023	221,002	$5,269	$20.93	$17.61 - $24.79
Q1 2023	216,502	$6,465	$28.73	$23.43 - $32.20
Q4 2022	171,502	$6,629	$34.12	$30.24 - $37.52
Q3 2022	156,202	$6,303	$32.17	$29.33 - $35.35
Q2 2022	160,202	$6,105	$28.16	$25.41 - $31.07
Q1 2022	133,202	$4,898	$30.77	$27.94 - $35.17
Q4 2021	61,524	$2,502	$32.08	$29.12 - $35.07
Q3 2021	61,524	$2,477	$32.44	$28.61 - $35.28
Q2 2021	62,433	$2,612	$34.99	$31.09 - $37.17
Q1 2021	60,733	$2,796	$33.45	$28.62 - $38.67
Q4 2020	60,726	$2,476	$28.24	$23.24 - $30.91
Q3 2020	64,722	$2,061	$22.79	$19.82 - $25.19
Q2 2020	65,112	$2,016	$22.21	$18.56 - $26.25
Q1 2020	56,271	$1,623	$25.51	$17.70 - $29.72
Q4 2019	151,875	$6,367	$29.42	$26.97 - $30.65
Q3 2019	80,941	$3,257	$27.39	$25.57 - $28.80
Q2 2019	80,941	$3,206	$27.59	$25.51 - $29.43
Q1 2019	45,024	$1,793	$27.43	$24.54 - $29.25
Q4 2018	44,524	$1,628	$28.30	$23.64 - $31.56
Q3 2018	44,524	$1,995	$30.14	$28.28 - $31.93
Q2 2018	66,414	$2,803	$28.23	$25.92 - $30.31
Q1 2018	60,164	$2,379	$27.27	$25.33 - $28.53
Q4 2017	71,274	$2,855	$25.78	$23.94 - $27.43
Q3 2017	79,374	$3,036	$23.89	$22.02 - $25.34
Q2 2017	43,424	$1,615	$24.61	$22.12 - $26.78
Q1 2017	33,000	$1,308	$27.13	$24.24 - $29.59
Q4 2016	30,600	$1,302	$23.52	$19.91 - $27.96
Q3 2016	30,600	$964	$19.18	$17.19 - $20.98
Q2 2016	31,940	$898	$17.84	$16.91 - $18.79
Q1 2016	20,000	$563	$17.15	$15.67 - $18.33
Q4 2015	20,300	$590	$18.14	$16.44 - $19.65
Q3 2015	21,120	$588	$17.08	$15.94 - $18.02
Q2 2015	21,200	$588	$17.14	$16.52 - $17.95
Q1 2015	21,200	$590	$16.04	$14.64 - $17.23
Q4 2014	21,300	$593	$16.97	$15.81 - $18.14
Q3 2014	7,600	$202	$16.24	$15.08 - $17.40
Q2 2014	10,200	$277	$15.76	$14.59 - $17.36
Q1 2014	18,506	$522	$15.85	$14.50 - $17.54
Q4 2013	27,506	$780	$15.43	$13.64 - $17.60
Q3 2013	18,706	$452	$13.86	$12.12 - $14.95
Q2 2013	35,094	$727	$11.61	$10.46 - $12.41