Thomas Edward Henning

Insider

First SEC filing: June 4, 2024 · Latest: June 4, 2024

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 2 sells (S) Net: $-1,056,219 + 20 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

20 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 15, 2026	NNI	A	1,738	$110.76	$192,501	59,312 Direct	+3.02%	Acquired	14.3% (price as of 2026-08-20)
Sept. 5, 2025	NNI	S 10b5-1	3,102	$128.87	$399,755	0 Indirect	-100.00%	Disposed	-1.8% (price as of 2026-08-20)
Sept. 5, 2025	NNI	S 10b5-1	5,094	$128.87	$656,464	11,058 Direct	-31.54%	Disposed	-1.8% (price as of 2026-08-20)
June 16, 2025	NNI	A	2,015	$95.58	$192,594	57,000 Direct	+3.66%	Acquired	32.4% (price as of 2026-08-20)
June 17, 2024	NNI	A	2,316	$83.14	$192,552	54,439 Direct	+4.44%	Acquired	52.2% (price as of 2026-08-20)
June 1, 2024	FIBK	A	3,014	—	—	27,066 Direct	+12.53%	Acquired	(price as of 2026-08-20)
June 20, 2023	NNI	A	2,271	$84.79	$192,558	51,498 Direct	+4.61%	Acquired	49.3% (price as of 2026-08-20)
June 1, 2023	FIBK	A	3,401	—	—	24,052 Direct	+16.47%	Acquired	(price as of 2026-08-20)
June 1, 2022	FIBK	A	1,576	$38.07	$59,998	20,651 Direct	+8.26%	Acquired	-0.8% (price as of 2026-08-20)
Feb. 1, 2022	FIBK	A	477	$38.41	$18,322	19,075 Direct	+2.56%	Acquired	-1.6% (price as of 2026-08-20)
Feb. 1, 2022	FIBK	A	18,598	—	—	18,598 Direct	—	Acquired	(price as of 2026-08-20)
June 26, 2009	NNI	A	7,143	—	—	23,935 Direct	+42.54%	Acquired	(price as of 2026-08-20)
July 9, 2008	NNI	A	7,804	—	—	16,792 Direct	+86.83%	Acquired	(price as of 2026-08-20)
March 14, 2008	NNI	A	62	—	—	8,988 Direct	+0.69%	Acquired	(price as of 2026-08-20)
Dec. 14, 2007	NNI	A	50	—	—	8,926 Direct	+0.56%	Acquired	(price as of 2026-08-20)
Sept. 15, 2007	NNI	A	34	—	—	8,876 Direct	+0.38%	Acquired	(price as of 2026-08-20)
Sept. 12, 2007	NNI	P 10b5-1	1,000	$18.20	$18,200	3,090 Indirect	+47.85%	Acquired	595.3% (price as of 2026-08-20)
Sept. 12, 2007	NNI	P 10b5-1	1,000	$18.32	$18,320	2,090 Indirect	+91.74%	Acquired	590.8% (price as of 2026-08-20)
Sept. 12, 2007	NNI	P 10b5-1	1,090	$18.35	$20,002	1,090 Indirect	—	Acquired	589.6% (price as of 2026-08-20)
July 27, 2007	NNI	A	4,167	—	—	8,842 Direct	+89.13%	Acquired	(price as of 2026-08-20)
June 15, 2007	NNI	A	13	—	—	4,675 Direct	+0.28%	Acquired	(price as of 2026-08-20)
March 15, 2007	NNI	A	13	—	—	4,662 Direct	+0.28%	Acquired	(price as of 2026-08-20)
June 30, 2006	NNI	A	2,033	—	—	4,649 Direct	+77.71%	Acquired	(price as of 2026-08-20)
June 27, 2005	NNI	A	2,616	—	—	2,616 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 19, 2004	NNI	A	3,922	—	—	8,922 Direct	+78.44%	Acquired	(price as of 2026-08-20)
Dec. 11, 2003	NNI	P	5,000	$21.00	$105,000	5,000 Direct	—	Acquired	502.6% (price as of 2026-08-20)

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.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 15, 2026	NNI	Phantom Stock	Class A Common Stock (1,738)	—	—	1,738	Acquired
June 16, 2025	NNI	Phantom Stock	Class A Common Stock (2,015)	—	—	2,015	Acquired
June 17, 2024	NNI	Phantom Stock	Class A Common Stock (2,316)	—	—	2,316	Acquired
June 20, 2023	NNI	Phantom Stock	Class A Common Stock (2,271)	—	—	2,271	Acquired
June 26, 2009	NNI	Phantom Stock	Class A Common Stock (7,143)	—	—	7,143	Acquired
July 9, 2008	NNI	Phantom Stock	Class A Common Stock (7,804)	—	—	7,804	Acquired
March 14, 2008	NNI	Phantom Stock	Class A Common Stock (62)	—	—	62	Acquired
Dec. 14, 2007	NNI	Phantom Stock	Class A Common Stock (50)	—	—	50	Acquired
Sept. 15, 2007	NNI	Phantom Stock	Class A Common Stock (34)	—	—	34	Acquired
July 27, 2007	NNI	Phantom Stock	Class A Common Stock (4,167)	—	—	4,167	Acquired
June 15, 2007	NNI	Phantom Stock	Class A Common Stock (13)	—	—	13	Acquired
March 15, 2007	NNI	Phantom Stock	Class A Common Stock (13)	—	—	13	Acquired
June 30, 2006	NNI	Phantom Stock	Class A Common Stock (2,033)	—	—	2,033	Acquired
June 27, 2005	NNI	Phantom Stock	Class A Common Stock (2,616)	—	—	2,616	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Feb. 2, 2022	FIBK	Class A Common Stock	0	Direct
Dec. 10, 2003	NNI	No securities owned	0	Direct