Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 74 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

74 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 1, 2021 FIBK S 12,500 $46.13 $576,625 143 Indirect -98.87% Disposed -22.8% (price as of 2026-10-05)
Feb. 4, 2021 FIBK S 12,500 $41.00 $512,500 12,643 Indirect -49.72% Disposed -13.1% (price as of 2026-10-05)
March 13, 2020 FIBK P 1,000 $27.36 $27,360 565,731 Indirect +0.18% Acquired 30.2% (price as of 2026-10-05)
March 8, 2019 FIBK S 15,670 $41.14 $644,664 143 Indirect -99.10% Disposed -13.4% (price as of 2026-10-05)
Nov. 21, 2018 FIBK S 3,000 $42.70 $128,100 10,813 Indirect -21.72% Disposed -16.6% (price as of 2026-10-05)
May 24, 2018 FIBK S 19,623 $43.85 $860,469 4,292 Direct -82.05% Disposed -18.8% (price as of 2026-10-05)
May 7, 2018 FIBK S 15,244 $41.12 $626,833 5,054 Direct -75.10% Disposed -13.4% (price as of 2026-10-05)
Feb. 15, 2018 FIBK S 2,000 · · 5,241 Direct -27.62% Disposed (price as of 2026-10-05)
Feb. 15, 2018 FIBK S 2,000 · · 5,241 Direct -27.62% Disposed (price as of 2026-10-05)
Nov. 17, 2017 FIBK S 25,000 $37.76 $944,000 13,188 Indirect -65.47% Disposed -5.7% (price as of 2026-10-05)
Nov. 15, 2017 FIBK S 25,000 $37.56 $939,000 38,188 Indirect -39.56% Disposed -5.2% (price as of 2026-10-05)
Nov. 14, 2017 FIBK S 25,000 $37.33 $933,250 63,188 Indirect -28.35% Disposed -4.6% (price as of 2026-10-05)
Nov. 10, 2017 FIBK S 25,000 $36.81 $920,250 88,188 Indirect -22.09% Disposed -3.2% (price as of 2026-10-05)
Dec. 15, 2016 FIBK S 5,000 $42.02 $210,100 4,576 Indirect -52.21% Disposed -15.2% (price as of 2026-10-05)
Nov. 29, 2016 FIBK S 2,000 $37.50 $75,000 4,958 Direct -28.74% Disposed -5.0% (price as of 2026-10-05)
Aug. 24, 2016 FIBK S 960 $30.20 $28,992 3,972 Indirect -19.46% Disposed 17.9% (price as of 2026-10-05)
Aug. 4, 2016 FIBK S 4,000 $29.07 $116,280 5,232 Indirect -43.33% Disposed 22.5% (price as of 2026-10-05)
Aug. 1, 2016 FIBK S 1,000 $29.20 $29,200 9,232 Indirect -9.77% Disposed 22.0% (price as of 2026-10-05)
May 27, 2016 FIBK S 1,000 $28.91 $28,910 10,232 Indirect -8.90% Disposed 23.2% (price as of 2026-10-05)
May 24, 2016 FIBK S 1,000 $28.60 $28,600 10,175 Indirect -8.95% Disposed 24.5% (price as of 2026-10-05)
May 24, 2016 FIBK S 1,000 $28.60 $28,600 10,475 Indirect -8.71% Disposed 24.5% (price as of 2026-10-05)
May 23, 2016 FIBK S 1,300 $28.42 $36,946 11,175 Indirect -10.42% Disposed 25.3% (price as of 2026-10-05)
May 23, 2016 FIBK S 1,000 $27.90 $27,900 11,475 Indirect -8.02% Disposed 27.7% (price as of 2026-10-05)
Nov. 5, 2015 FIBK S 4,484 $29.04 $130,215 3,215 Indirect -58.24% Disposed 22.7% (price as of 2026-10-05)
Nov. 4, 2015 FIBK S 2,000 $28.84 $57,680 7,699 Indirect -20.62% Disposed 23.5% (price as of 2026-10-05)
Nov. 21, 2014 FIBK S 1,000 $28.05 $28,050 13,242 Indirect -7.02% Disposed 27.0% (price as of 2026-10-05)

Showing latest 100 of 178 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 1, 2022 FIBK Class B Common Stock Class A Common Stock (20,000) $0.00 · 20,000 Disposed
March 3, 2021 FIBK Class B Common Stock Class A Common Stock (94,863) $0.00 · 94,863 Disposed
March 3, 2021 FIBK Class B Common Stock Class A Common Stock (94,863) $0.00 · 94,863 Disposed
March 3, 2021 FIBK Class B Common Stock Class A Common Stock (94,863) $0.00 · 94,863 Disposed
Jan. 18, 2021 FIBK Class B Common Stock Class A Common Stock (25,000) $0.00 · 25,000 Disposed
Dec. 17, 2020 FIBK Class B Common Stock Class A Common Stock (48,650) · · 48,650 Acquired
Dec. 17, 2020 FIBK Class B Common Stock Class A Common Stock (48,650) · · 48,650 Acquired
Dec. 17, 2020 FIBK Class B Common Stock Class A Common Stock (48,650) · · 48,650 Acquired
March 13, 2020 FIBK Class B Common Stock Class A Common Stock (1,000) $0.00 · 1,000 Acquired
Oct. 18, 2019 FIBK Class B Common Stock Class A Common Stock (10,000) $0.00 · 10,000 Disposed
Feb. 28, 2019 FIBK Class B Common Stock Class A Common Stock (2,450) $0.00 · 2,450 Disposed
Nov. 26, 2018 FIBK Class B Common Stock Class A Common Stock (2,115) $0.00 · 2,115 Disposed
May 16, 2018 FIBK Class B Common Stock Class A Common Stock (18,851) $0.00 · 18,851 Disposed
May 7, 2018 FIBK Stock Options (Right to Buy) Class A Common Stock (4,306) $17.22 Feb. 15, 2020 4,306 Disposed
May 7, 2018 FIBK Stock Options (Right to Buy) Class A Common Stock (3,386) $14.37 Feb. 17, 2022 3,386 Disposed
May 7, 2018 FIBK Stock Options (Right to Buy) Class A Common Stock (2,303) $14.20 Feb. 14, 2021 2,303 Disposed
May 7, 2018 FIBK Class B Common Stock Class A Commnon Stock (916) $0.00 · 916 Disposed
May 7, 2018 FIBK Class B Common Stock Class A Commnon Stock (916) $0.00 · 916 Acquired
May 7, 2018 FIBK Stock Options (Right to Buy) Class B Common Stock (916) $15.00 Feb. 12, 2020 916 Disposed
May 7, 2018 FIBK Class B Common Stock Class A Common Stock (4,000) $0.00 · 4,000 Disposed
May 7, 2018 FIBK Class B Common Stock Class A Common Stock (4,000) $0.00 · 4,000 Acquired
May 7, 2018 FIBK Stock Options (Right to Buy) Class B Common Stock (4,000) $19.93 Dec. 19, 2018 4,000 Disposed
Feb. 15, 2018 FIBK Class B Common Stock Class A Commnon Stock (2,000) $0.00 · 2,000 Disposed
Feb. 15, 2018 FIBK Class B Common Stock Class A Commnon Stock (2,000) $0.00 · 2,000 Acquired
Feb. 15, 2018 FIBK Stock Options (Right to Buy) Class B Common Stock (2,000) $20.87 Feb. 15, 2018 2,000 Disposed
Feb. 15, 2018 FIBK Class B Common Stock Class A Commnon Stock (2,000) $0.00 · 2,000 Disposed
Feb. 15, 2018 FIBK Class B Common Stock Class A Commnon Stock (2,000) $0.00 · 2,000 Acquired
Feb. 15, 2018 FIBK Stock Options (Right to Buy) Class B Common Stock (2,000) $20.87 Feb. 15, 2018 2,000 Disposed
Nov. 29, 2017 FIBK Class B Common Stock Class A Common Stock (2,205) $0.00 · 2,205 Disposed
Oct. 27, 2017 FIBK Class B Common Stock Class A Common Stock (100,000) $0.00 · 100,000 Disposed
Nov. 29, 2016 FIBK Stock Options Class B Common Stock [F1] (2,000) $20.62 Jan. 25, 2017 2,000 Disposed
Nov. 22, 2016 FIBK Class B Common Stock [F2] Class A Common Stock (9,576) $0.00 Dec. 31, 2029 9,576 Disposed
Nov. 22, 2016 FIBK Class B Common Stock [F1] Class A Common Stock (2,334) $0.00 Dec. 31, 2010 2,334 Disposed
May 3, 2016 FIBK Class B Common Stock [F1] Class B Common Stock (9,260) $0.00 Dec. 31, 2029 9,260 Disposed
Nov. 18, 2015 FIBK Class B Common Stock [F1] Class A Common Stock (2,898) $0.00 Dec. 31, 2029 2,898 Disposed
Nov. 11, 2015 FIBK Class B Common Stock [F1] Class A Common Stock (963) $0.00 Dec. 31, 2029 963 Disposed
Nov. 11, 2015 FIBK Class B common Stock [F1] Class A Common Stock (1,400) $0.00 Dec. 31, 2029 1,400 Acquired
Nov. 11, 2015 FIBK Stock Options Class B Common Stock (1,400) $17.00 Jan. 26, 2016 1,400 Disposed
Aug. 7, 2015 FIBK Class B Common Stock [F1] Class A Common Stock (12,000) $0.00 Dec. 31, 2029 12,000 Disposed
Nov. 17, 2014 FIBK Class B Common Stock [F1] Class A Common Stock (2,949) $0.00 Dec. 31, 2029 2,949 Disposed
April 30, 2014 FIBK Class B Common Stock [F1] Class A Comon Stock (20,000) $0.00 Dec. 31, 2029 20,000 Disposed
Feb. 21, 2014 FIBK Class B Common Stock [F1] Class A Common Stock (19,960) $0.00 Dec. 31, 2029 19,960 Disposed
Nov. 20, 2013 FIBK Class B Common Stock [F1] Class A Common Stock (3,228) $0.00 Dec. 31, 2029 3,228 Disposed
Nov. 19, 2013 FIBK Class B Common Stock [F1] Class A Common Stock (7,700) $0.00 Dec. 31, 2029 7,700 Disposed
Nov. 17, 2010 FIBK Class B Common Stock [F1] Class A Common Stock (5,598) · Dec. 31, 2029 5,598 Disposed
May 7, 2010 FIBK Stock Options [F3] Class A Common Stock [F1] (1,972) $15.91 May 7, 2020 1,972 Acquired
Feb. 12, 2010 FIBK Stock Options Common Stock (229) $60.00 Feb. 12, 2020 229 Acquired
May 15, 2009 FIBK Stock Options [F1] Common Stock (430) $61.00 May 15, 2019 430 Acquired
May 15, 2009 FIBK Stock Options [F1] Common Stock (490) $61.00 May 15, 2019 490 Acquired
Dec. 19, 2008 FIBK Stock Options [F2] Common Stock (1,000) $79.75 Dec. 19, 2018 1,000 Acquired
May 9, 2008 FIBK Stock Options [F2] Common Stock (626) $83.50 May 9, 2018 626 Acquired
May 4, 2007 FIBK Stock Options [F1] Common Stock (480) $89.00 May 4, 2017 480 Acquired
Jan. 25, 2007 FIBK Stock Options [F1] Common Stock (500) $82.50 Jan. 25, 2017 500 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 25 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
March 10, 2022 FIBK Class A Common Stock 284,589 Indirect
March 10, 2022 FIBK Class B Common Stock→ Class A Common Stock · Indirect
March 10, 2022 FIBK Class B Common Stock→ Class A Common Stock (265) 265 Direct
Feb. 20, 2020 FIBK Class A Common Stock 143 Indirect
Feb. 20, 2020 FIBK Class B Common Stock→ Class A Common Stock (564,731) 564,731 Indirect
Feb. 20, 2020 FIBK Class B Common Stock→ Class A Common Stock (50,000) 50,000 Indirect
Feb. 20, 2020 FIBK Class B Common Stock→ Class A Common Stock (265) 265 Direct
June 3, 2013 FIBK Class A Common Stock 2,297 Direct
June 3, 2013 FIBK Class A Common Stock 377 Indirect
June 3, 2013 FIBK Class B Common Stock [F1]→ Class B Common Stock (265) 265 Direct
June 3, 2013 FIBK Class B Common Stock [F1]→ Class B Common Stock (59,576) 59,576 Indirect
June 3, 2013 FIBK Class B Common Stock [F1]→ Class B Common Stock (790,919) 790,919 Indirect
June 3, 2013 FIBK Stock Options [F2]→ Class B Common Stock (1,400) 1,400 Direct
June 3, 2013 FIBK Stock Options [F2]→ Class B Common Stock (2,000) 2,000 Direct
June 3, 2013 FIBK Stock Options [F2]→ Class B Common Stock (2,000) 2,000 Direct
June 3, 2013 FIBK Stock Options [F2]→ Class B Common Stock (4,000) 4,000 Direct
June 3, 2013 FIBK Stock Options [F3]→ Class B Common Stock (916) 916 Direct
June 3, 2013 FIBK Stock Options [F3]→ Class A Common Stock (2,303) 2,303 Direct
June 3, 2013 FIBK Stock Options [F3]→ Class A Common Stock (3,386) 3,386 Direct
June 3, 2013 FIBK Stock Options [F3]→ Class A Common Stock (4,306) 4,306 Direct
May 12, 2006 FIBK Common Stock 218,335 Indirect
May 12, 2006 FIBK Common Stock 7,453 Indirect
May 12, 2006 FIBK Common Stock 161 Indirect
May 12, 2006 FIBK Stock Options [F1]→ Common Stock (834) 834 Direct
May 12, 2006 FIBK Stock Options [F2]→ Common Stock (350) 350 Direct