Dennis W Johnson

CIK 1195487 · View on SEC EDGAR ↗

Insider

First SEC filing: Dec. 11, 2008 · Latest: Dec. 11, 2008

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.

Insider at

MDU buying Feb. 10, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 32 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

32 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 13, 2025	MDU	A	7,779	—	—	187,945 Direct	+4.32%	Acquired	(price as of 2026-08-20)
Feb. 10, 2025	MDU	P	30,000	$16.64	$499,200	180,166 Direct	+19.98%	Acquired	23.9% (price as of 2026-08-20)
Nov. 15, 2024	MDU	A	9,541	—	—	150,166 Direct	+6.78%	Acquired	(price as of 2026-08-20)
Nov. 15, 2023	MDU	A	9,343	$18.73	$174,994	139,364 Direct	+7.19%	Acquired	98.6% (price as of 2026-08-20)
Nov. 21, 2022	MDU	A	5,712	$30.64	$175,016	127,633 Direct	+4.69%	Acquired	76.9% (price as of 2026-08-20)
Nov. 16, 2021	MDU	A	5,693	$28.98	$164,983	119,658 Direct	+5.00%	Acquired	87.0% (price as of 2026-08-20)
Nov. 17, 2020	MDU	A	5,905	$25.40	$149,987	111,938 Direct	+5.57%	Acquired	113.4% (price as of 2026-08-20)
May 14, 2020	MDU	P	5,000	$18.80	$94,000	104,752 Direct	+5.01%	Acquired	188.3% (price as of 2026-08-20)
Nov. 19, 2019	MDU	A	4,857	$29.16	$141,630	98,580 Direct	+5.18%	Acquired	85.9% (price as of 2026-08-20)
Nov. 20, 2018	MDU	A	4,143	$26.54	$109,955	91,628 Direct	+4.74%	Acquired	104.2% (price as of 2026-08-20)
Nov. 21, 2017	MDU	A	4,091	$26.88	$109,966	85,620 Direct	+5.02%	Acquired	101.6% (price as of 2026-08-20)
Nov. 21, 2016	MDU	A	3,886	$28.30	$109,974	79,751 Direct	+5.12%	Acquired	91.5% (price as of 2026-08-20)
Nov. 18, 2015	MDU	A	6,039	$18.21	$109,970	73,728 Direct	+8.92%	Acquired	197.6% (price as of 2026-08-20)
Nov. 19, 2014	MDU	A	4,340	$25.34	$109,976	79,974 Direct	+5.74%	Acquired	113.9% (price as of 2026-08-20)
May 12, 2014	MDU	S	5,467	$34.78	$190,142	74,813 Direct	-6.81%	Disposed	55.8% (price as of 2026-08-20)
Nov. 20, 2013	MDU	A	3,603	$30.53	$110,000	79,492 Direct	+4.75%	Acquired	77.5% (price as of 2026-08-20)
Aug. 8, 2013	MDU	S	7,700	$29.00	$223,300	75,463 Direct	-9.26%	Disposed	86.9% (price as of 2026-08-20)
May 7, 2013	MDU	S	300	$26.52	$7,956	82,705 Direct	-0.36%	Disposed	104.4% (price as of 2026-08-20)
May 7, 2013	MDU	S	1,500	$26.51	$39,765	83,005 Direct	-1.78%	Disposed	104.5% (price as of 2026-08-20)
Nov. 19, 2012	MDU	A	5,467	$20.12	$109,996	83,461 Direct	+7.01%	Acquired	169.4% (price as of 2026-08-20)
Nov. 21, 2011	MDU	A	5,450	$20.18	$109,981	75,943 Direct	+7.73%	Acquired	168.6% (price as of 2026-08-20)
May 17, 2010	MDU	A	4,050	$19.52	$79,056	67,448 Direct	+6.39%	Acquired	177.7% (price as of 2026-08-20)
May 18, 2009	MDU	A	4,050	$17.15	$69,458	61,632 Direct	+7.03%	Acquired	216.0% (price as of 2026-08-20)
Dec. 10, 2008	MDU	A	3,051	$20.97	$63,979	56,694 Direct	+5.69%	Acquired	158.5% (price as of 2026-08-20)
April 28, 2008	MDU	A	4,050	$28.52	$115,506	53,183 Direct	+8.24%	Acquired	90.0% (price as of 2026-08-20)
Dec. 31, 2007	MDU	A	2,344	$27.94	$65,491	48,675 Direct	+5.06%	Acquired	94.0% (price as of 2026-08-20)
April 27, 2007	MDU	A	4,050	$31.07	$125,834	46,007 Direct	+9.65%	Acquired	74.5% (price as of 2026-08-20)
Dec. 29, 2006	MDU	A	2,518	$25.81	$64,990	41,634 Direct	+6.44%	Acquired	110.0% (price as of 2026-08-20)
April 28, 2006	MDU	A	2,700	$37.11	$100,197	25,838 Direct	+11.67%	Acquired	119.1% (price as of 2026-08-20)
Dec. 30, 2005	MDU	A	1,770	$32.86	$58,162	22,903 Direct	+8.38%	Acquired	147.4% (price as of 2026-08-20)
Nov. 28, 2005	MDU	M	4,500	$25.70	$115,650	0 Direct	-100.00%	Disposed	216.4% (price as of 2026-08-20)
Nov. 28, 2005	MDU	M	4,500	$19.54	$87,930	0 Direct	-100.00%	Disposed	316.1% (price as of 2026-08-20)
Nov. 28, 2005	MDU	S	4,500	$33.30	$149,850	21,133 Direct	-17.56%	Disposed	144.2% (price as of 2026-08-20)
Nov. 28, 2005	MDU	S	4,500	$33.30	$149,850	25,633 Direct	-14.93%	Disposed	144.2% (price as of 2026-08-20)
Nov. 28, 2005	MDU	M	4,500	$25.70	$115,650	30,133 Direct	+17.56%	Acquired	216.4% (price as of 2026-08-20)
Nov. 28, 2005	MDU	M	4,500	$19.54	$87,930	25,633 Direct	+21.29%	Acquired	316.1% (price as of 2026-08-20)
April 29, 2005	MDU	A	2,700	$26.85	$72,495	20,892 Direct	+14.84%	Acquired	202.8% (price as of 2026-08-20)
Dec. 31, 2004	MDU	A	2,036	$26.93	$54,829	18,013 Direct	+12.74%	Acquired	201.9% (price as of 2026-08-20)
May 4, 2004	MDU	A	2,700	$22.60	$61,020	15,794 Direct	+20.62%	Acquired	259.7% (price as of 2026-08-20)
Dec. 31, 2003	MDU	A	2,261	$24.10	$54,490	12,925 Direct	+21.20%	Acquired	237.4% (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
Nov. 28, 2005	MDU	Stock Option	Common Stock (4,500)	$25.70	May 17, 2011	4,500	Disposed
Nov. 28, 2005	MDU	Stock Option	Common Stock (4,500)	$19.54	May 16, 2012	4,500	Disposed

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