First Interstate BancSystem, Inc FIBK

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First Interstate BancSystem, Inc. - Common Stock · Company · Nasdaq · Financial Services / Banks - Regional

Paper trade (simulated — no real money)

Fill: USD 36.7800 · FX 1 USD = 1.277900 SGD · about SGD 47.0012 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 31.63 → 36.78 · 16.3%
40.22034.95029.680 1 2 3 4 5 6 7,8 9 10 11 12 13 14 15 16 17 18 19 20 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

Weekend
Weekend
36.3700 37.0500 36.2000 36.7800 1,584,880
20 · 8-K After-hours · 20:10 ET 8-K ↗
35.5400 36.9500 35.5400 36.8800 1,957,300
35.7800 35.8100 35.3500 35.6700 787,100
34.7300 35.7300 34.7300 35.5600 841,600
34.8100 34.9600 34.6600 34.7300 776,400
Weekend
Weekend
34.9800 35.5900 34.7000 34.8200 864,500
34.4900 35.0000 34.3200 34.8100 882,700
34.1200 34.5700 34.0200 34.3700 1,061,200
34.9800 35.1400 34.4000 34.7100 989,400
34.5400 34.9800 34.5400 34.7900 836,100
Weekend
Weekend
34.7800 34.8800 34.5200 34.5200 750,400
34.5100 35.0300 34.2900 34.9400 999,900
35.2400 35.2900 34.5500 34.7400 868,600
35.6200 35.9900 35.4000 35.5200 1,222,500
36.0700 36.0700 35.5100 35.6200 2,214,600
Weekend
Weekend
36.1100 36.4800 35.9200 36.0000 1,238,300
35.5700 35.9200 34.8700 35.7700 1,354,100
35.9900 36.2800 35.4400 35.7400 1,015,800
36.6200 36.6900 35.9200 36.0000 1,383,900
36.7300 36.7400 36.3000 36.3300 1,026,800
Weekend
Weekend
36.6600 37.1600 36.6500 36.9100 1,647,000
36.0200 36.6300 36.0200 36.5100 1,031,500
36.3300 36.6200 36.0200 36.0200 1,061,500
36.9600 37.1300 36.5400 36.5400 1,211,800
37.4100 37.6200 36.8200 36.8300 1,156,900
Weekend
Weekend
37.1100 37.5000 36.7600 37.3500 4,018,200
37.2300 37.5500 37.0400 37.1600 1,114,600
19 · 8-K After market open · 14:06 ET 8-K ↗
37.4600 37.7000 36.5700 36.9200 1,977,000
37.2100 37.6800 37.2100 37.4600 1,049,900
36.9200 37.4600 36.9100 37.3000 946,800
Weekend
Weekend
37.2000 37.3700 36.5600 36.9200 725,400
36.7500 36.9800 36.4300 36.8800 1,074,900
37.0900 37.4400 36.7200 36.8200 1,016,700
37.7300 37.8600 37.1900 37.2200 804,900
No trading
Weekend
Weekend
37.5100 37.9400 37.4500 37.8500 868,000
37.1900 37.7700 37.1900 37.4800 1,066,500
36.5300 37.3900 36.3400 37.1600 892,000
36.6800 37.2000 36.1600 36.3200 1,216,100
37.0700 37.2800 36.6300 36.8100 792,100
Weekend
Weekend
37.2700 37.6200 36.9800 37.0400 801,000
36.9200 37.2800 36.7100 37.2700 596,800
37.2000 37.4200 36.9200 37.2000 632,300
37.3700 37.3800 36.8800 37.0600 749,600
37.4600 37.8900 37.1900 37.2400 1,007,400
Weekend
Weekend
38.2500 38.3300 37.4500 37.4900 1,075,600
18 · 8-K Pre-market · 09:20 ET 8-K ↗
37.7800 37.9800 37.5500 37.8100 837,000
38.4600 38.4900 37.6900 37.8400 886,900
38.8900 39.0400 38.3800 38.4600 894,700
39.0300 39.4600 38.8900 38.8900 903,500
Weekend
Weekend
38.7500 39.2700 38.7500 39.1700 884,400
38.8100 39.0900 38.6900 38.8400 688,200
38.3000 38.6400 37.8800 38.5300 975,100
37.6300 38.1300 37.4100 38.0200 930,600
37.2200 37.5600 37.0400 37.3800 943,400
Weekend
Weekend
37.3200 37.7700 37.1700 37.5300 878,900
38.1700 38.3200 37.3900 37.4200 1,121,000
38.5200 38.5300 38.0300 38.0700 1,095,800
38.1000 38.8400 37.9900 38.4000 1,585,700
17 · 10-Q After-hours · 16:01 ET 10-Q ↗
37.8000 38.6200 37.8000 38.5700 1,119,500
Weekend
Weekend
38.6500 38.7500 37.9400 38.0200 1,015,500
38.0400 38.6700 37.9500 38.4600 1,103,300
38.0800 38.1100 37.5400 37.7500 1,480,800
38.0000 38.4200 37.7600 38.0900 2,118,000
38.2800 38.6600 37.7400 37.7600 1,599,400
Weekend
Weekend
37.6800 38.5200 37.5400 38.1200 1,996,800
16 · 8-K After-hours · 16:14 ET 8-K ↗
37.9000 38.1000 37.5900 38.1000 1,759,300
38.9400 38.9400 38.2900 38.3900 821,500
38.5200 38.9800 38.1800 38.9700 987,500
39.2400 39.2500 38.4700 38.5500 918,300
Weekend
Weekend
39.8300 39.9400 38.8600 39.1800 1,659,700
15 · 8-K After-hours · 16:06 ET 8-K ↗
39.3600 40.6000 39.0000 40.2200 1,910,100
39.1300 40.0600 38.9600 39.3500 1,660,500
38.8300 39.2600 38.7400 38.9400 897,800
38.9400 39.0500 38.5800 38.8300 887,800
Weekend
Weekend
39.0500 39.2500 38.6900 38.8500 629,600
14 · 8-K After-hours · 16:02 ET 8-K ↗
38.3800 39.2100 38.3800 38.9100 755,000
39.0600 39.1100 37.9500 38.2500 1,220,000
39.5000 39.5400 39.0800 39.1600 848,600
38.9500 39.4000 38.9200 39.3800 797,900
Weekend
Weekend
No trading
39.5000 39.6500 38.6900 39.1500 911,400
38.5000 39.3300 38.3400 39.2600 1,280,400
38.4100 38.5800 38.2000 38.5600 1,240,100
38.3300 38.6100 37.8700 38.5900 979,800
Weekend
Weekend
38.5100 38.7500 38.2600 38.6300 2,415,000
37.9500 38.6400 37.6800 38.4400 671,000
37.3300 38.0300 37.3300 37.8800 888,600
36.6100 37.3600 36.6100 37.3300 771,800
36.4700 36.8900 36.3300 36.7100 888,600
Weekend
Weekend
No trading
36.0000 36.5400 35.8800 36.4300 2,426,800
36.3500 36.7900 35.1400 35.6400 1,572,100
36.6700 37.0300 36.3500 36.5200 753,500
37.3900 37.6300 36.3700 36.4300 802,300
Weekend
Weekend
36.6300 37.1700 36.6300 37.1100 646,100
36.2900 36.7600 36.0200 36.5600 891,900
36.0800 36.5800 36.0800 36.2200 796,600
35.8000 36.8500 35.8000 36.1000 829,700
35.6500 36.0300 35.5600 35.5700 713,800
Weekend
Weekend
35.6600 36.0300 35.4100 35.5700 1,089,000
34.8900 35.7400 34.8600 35.7200 853,300
35.0400 35.1500 34.2600 34.3200 1,115,100
34.5600 35.3600 34.5600 35.2200 691,700
35.2500 35.2700 34.4500 34.7300 932,400
Weekend
Weekend
13 · 8-K After-hours · 16:26 ET 8-K ↗
36.0100 36.0100 35.5500 35.6000 1,310,800
35.5200 35.6300 35.0400 35.6000 957,600
35.8600 36.0500 35.4200 35.6600 1,109,200
12 · S-3ASR After-hours · 16:06 ET S-3ASR ↗
35.6700 36.1400 35.6100 36.1300 900,100
No trading
Weekend
Weekend
35.3000 35.5500 35.1000 35.4900 1,251,700
34.9100 35.4900 34.8000 35.2000 815,100
34.4800 35.4400 34.3200 35.1800 1,164,000
34.3100 34.5600 34.0000 34.3600 970,100
34.4400 34.7900 34.2400 34.3800 1,289,500
Weekend
Weekend
34.2600 34.4000 33.7000 34.0800 1,360,700
34.4600 34.7600 34.2800 34.3400 863,500
11 · 8-K After-hours · 17:12 ET 8-K ↗
34.6500 34.9300 33.8300 34.1100 1,709,600
35.2500 35.3400 34.3800 34.5900 1,702,000
36.0800 36.1900 35.0100 35.1000 1,724,700
Weekend
Weekend
36.3400 36.5400 36.0400 36.4200 1,559,800
10 · 10-Q After-hours · 16:10 ET 10-Q ↗
36.5000 36.7800 36.1600 36.2500 1,480,200
36.3100 36.6800 36.1100 36.3900 1,219,700
35.2300 36.0900 34.9900 35.9000 1,098,800
35.1500 35.4600 34.8800 34.9900 1,107,400
Weekend
Weekend
35.4600 35.9500 35.0500 35.4500 1,385,000
34.5300 35.7300 34.4600 35.4900 2,670,900
9 · 8-K After-hours · 16:12 ET 8-K ↗
35.6600 35.7700 34.3900 34.4300 1,880,200
35.6200 35.8300 35.3700 35.6800 1,332,300
34.9100 35.5800 34.8100 35.3300 1,767,300
Weekend
Weekend
34.8400 35.0200 34.2800 34.8500 1,279,000
34.6300 34.9300 34.4000 34.8600 1,008,200
34.4300 34.5700 34.1000 34.4800 998,100
34.4900 34.7500 34.1000 34.2300 869,200
34.4000 34.9600 34.4000 34.4600 789,500
Weekend
Weekend
34.2700 35.1200 34.1200 34.6200 1,429,600
8 · DEFA14A After-hours · 16:11 ET DEFA14A ↗ 7 · DEF 14A After-hours · 16:09 ET DEF 14A ↗
34.0100 34.2100 33.6500 33.7700 916,700
34.3400 34.3600 33.6700 34.0700 860,900
34.4200 34.5700 34.2000 34.2500 802,000
33.9500 34.4600 33.6000 34.4400 868,300
Weekend
Weekend
34.2700 34.3200 33.9500 34.0300 1,192,500
33.7900 34.4900 33.5700 34.2700 2,185,100
34.1200 34.5000 33.7900 34.0400 1,603,800
33.1600 33.5700 32.8100 33.2200 2,039,000
33.3500 33.9900 33.3200 33.8500 949,300
Weekend
Weekend
No trading
33.0400 33.7000 32.8000 33.4800 1,206,800
33.5400 33.9500 33.2600 33.5500 1,060,100
33.2600 34.1000 33.1900 33.4000 1,762,400
6 · PRE 14A Next filing day · accepted 30 Mar, 18:18 ET PRE 14A ↗
33.2200 33.2200 32.6800 32.8200 783,000
Weekend
Weekend
33.2600 33.5100 32.7300 32.8100 1,155,200
33.3000 33.7600 33.2200 33.5000 1,110,300
33.6900 33.8600 33.2300 33.6300 733,200
32.8000 33.7300 32.1900 33.2700 743,800
33.3500 33.9900 33.0000 33.1600 1,175,600
Weekend
Weekend
32.2400 32.5600 31.9300 32.4800 3,944,700
31.7600 32.5000 31.6200 32.2800 1,801,100
33.0900 33.1400 31.9800 32.0300 1,611,600
33.6600 33.7500 32.9700 33.1000 723,100
33.6300 34.0100 33.1600 33.2200 559,600
Weekend
Weekend
33.6900 33.9000 33.0000 33.1300 1,049,500
33.0800 33.6200 32.8000 33.2300 1,112,300
33.7100 34.0200 33.4600 33.7600 809,700
34.0000 34.8000 33.5800 34.0200 1,390,900
33.4500 34.2400 32.7100 34.0200 1,734,500
Weekend
Weekend
33.8500 34.4500 33.2400 34.1900 915,100
34.9200 35.3600 34.5700 35.0000 1,215,600
34.9300 35.3600 34.6900 35.1600 883,100
34.1400 35.1200 33.8800 34.7300 920,800
33.8400 35.2300 33.5400 35.1800 1,770,400
Weekend
Weekend
35.8800 36.2500 34.2100 34.6100 1,413,400
5 · 10-K After-hours · 16:19 ET 10-K ↗
36.5600 37.0800 36.1700 36.7900 792,700
35.9200 36.5200 35.6600 36.3400 704,000
35.6600 36.1400 35.3000 35.5600 947,700
37.2400 37.5500 35.5500 35.7700 976,900
Weekend
Weekend
36.9500 37.5500 36.6900 37.4400 785,600
36.9200 37.1900 36.6600 37.1400 828,900
37.8000 38.4700 37.1800 37.2600 815,100
37.7300 38.2100 37.3100 37.9700 858,200
No trading
Weekend
Weekend
37.2700 38.0800 36.9400 37.6600 674,800
38.2500 38.5500 36.6500 37.3400 1,034,800
38.5000 38.8400 37.5900 37.9300 964,400
38.5100 38.6800 37.8200 38.1400 738,200
38.5600 39.2600 38.3700 39.0000 981,600
Weekend
Weekend
38.3700 39.1700 38.3200 38.8200 1,200,100
37.6600 38.3400 37.5000 38.0000 1,444,200
37.8000 38.7000 37.8000 38.1400 914,600
36.8400 38.0200 36.8000 37.6000 1,392,100
35.8700 37.1700 35.6000 36.8100 1,953,400
Weekend
Weekend
35.7400 36.1700 35.3800 35.4700 2,108,800
37.9000 38.4100 35.4300 36.1400 2,030,500
4 · 8-K After-hours · 16:10 ET 8-K ↗
36.9700 37.3600 36.5600 36.6600 759,600
36.7400 37.0400 36.6700 36.8600 459,600
36.6600 37.0400 36.1900 36.7200 571,200
Weekend
Weekend
38.0200 38.3500 36.4900 36.6600 677,000
38.1200 38.7800 38.0000 38.2200 1,108,800
36.3800 38.1800 36.3400 38.0500 1,760,200
36.1600 36.8000 35.9500 36.1100 914,800
No trading
Weekend
Weekend
37.1800 37.3500 36.8300 36.8500 1,325,400
36.6600 37.5600 36.6500 37.2700 1,630,800
36.3500 36.6100 35.9700 36.5300 1,687,300
36.9600 37.1200 36.3000 36.4700 757,800
36.8200 37.0300 36.2700 36.7500 752,900
Weekend
Weekend
37.5500 37.8800 37.1800 37.2100 629,200
36.6900 38.0100 36.6700 37.5200 990,800
37.0500 37.1500 36.7100 36.8800 939,200
35.9400 37.1500 35.7500 37.0900 1,063,400
35.1000 36.3900 35.1000 36.0500 1,126,100
Weekend
Weekend
34.7200 35.5000 34.2500 35.3000 1,236,700
No trading
35.2100 35.2500 34.5900 34.6000 671,800
35.8100 35.8100 35.1400 35.1500 912,500
35.9300 36.0300 35.5300 35.7700 820,500
Weekend
Weekend
35.8900 35.9700 35.5400 35.9300 928,600
No trading
35.8600 35.9200 35.6700 35.8600 429,900
36.1100 36.2900 35.7700 35.9000 1,284,700
35.8200 36.2500 35.8200 36.0700 866,300
Weekend
Weekend
35.5400 35.8000 35.3600 35.7600 1,941,600
35.7300 35.9900 35.2800 35.5900 1,346,000
35.6000 36.3500 35.5300 35.5400 1,008,000
35.6500 35.8400 35.4800 35.5700 1,358,700
35.8000 35.8600 35.4700 35.6400 956,500
Weekend
Weekend
35.6400 35.7500 35.0500 35.4000 1,081,400
35.5100 36.0500 35.3500 35.4700 1,714,400
34.2000 35.7200 34.1700 35.6300 1,562,900
33.9200 34.4500 33.8700 34.2000 1,259,200
34.2400 34.6100 33.8000 33.8700 1,391,700
Weekend
Weekend
33.5200 34.4100 33.5200 34.1100 1,208,500
33.3800 33.9800 33.2400 33.6700 1,030,800
32.8400 33.6000 32.7800 33.3300 1,148,300
33.0900 33.3000 32.7200 32.7800 1,757,000
32.7300 33.5000 32.7000 33.0300 16,609,500
Weekend
Weekend
33.0200 33.2400 32.7000 32.8400 1,474,300
No trading
32.9800 33.1200 32.4700 32.8000 2,332,100
33.5100 34.2500 33.0500 33.1300 4,855,000
31.4300 31.8600 31.1800 31.7200 779,200
Weekend
Weekend
30.6500 31.8400 30.5800 31.4200 976,700
30.9800 31.6500 30.5200 30.6000 943,200
29.9900 30.8000 29.9900 30.7300 621,700
29.4300 30.2600 29.3900 29.9800 686,300
3 · 8-K Pre-market · 09:15 ET 8-K ↗
31.1600 31.1900 29.6500 29.6800 631,200
Weekend
Weekend
31.3200 31.4400 30.4900 31.3300 859,000
32.2300 32.5400 31.2000 31.4200 1,069,300
32.4200 33.0600 32.3900 32.4500 670,600
31.9900 32.6600 31.8600 32.4200 891,200
32.0400 32.3600 31.6500 31.9900 633,300
Weekend
Weekend
31.6500 32.5400 31.3800 32.4900 852,700
2 · 10-Q After market open · 15:22 ET 10-Q ↗
32.0100 32.5500 31.6500 31.7900 681,100
31.7400 32.6100 31.7100 32.2000 778,600
31.5500 31.8200 31.3100 31.6900 723,700
31.2900 31.7600 30.8100 31.7600 918,100
Weekend
Weekend
31.3900 31.5300 30.8600 31.2500 802,500
32.7100 32.8500 31.4600 31.4800 1,279,000
1 · 8-K After-hours · 16:06 ET 8-K ↗
32.1000 32.7500 31.7700 32.1100 921,000
32.1900 32.5100 31.9500 32.2600 826,900
31.6700 32.6700 31.6600 32.1700 1,208,200
Weekend
Weekend
31.5400 32.0100 31.4900 31.6300 739,100

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

20 8-K 8-K (opens SEC filing in a new tab) After-hours · 20:10 ET Summarise
19 8-K 8-K (opens SEC filing in a new tab) After market open · 14:06 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:20 ET Summarise
17 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:14 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:26 ET Summarise
12 S-3ASR S-3ASR (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:12 ET Summarise
10 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:12 ET Summarise
8 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
7 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
6 PRE 14A PRE 14A (opens SEC filing in a new tab) Next filing day · accepted 30 Mar, 18:18 ET Summarise
5 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:15 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After market open · 15:22 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise