Robert Dale Campbell

Insider

First SEC filing: May 16, 2006 · Latest: May 16, 2006

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

NI selling March 2, 2016

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 31 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

31 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 2, 2016	NI	G	20,000	—	—	192,234 Direct	-9.42%	Disposed	(price as of 2026-08-21)
March 2, 2016	NI	S	30,000	$21.55	$646,500	212,234 Direct	-12.38%	Disposed	92.7% (price as of 2026-08-21)
Feb. 29, 2016	NI	F	15,172	$21.48	$325,895	242,234 Direct	-5.89%	Disposed	93.3% (price as of 2026-08-21)
Jan. 29, 2016	NI	A	21,418	$21.01	$449,992	257,406 Direct	+9.08%	Acquired	97.6% (price as of 2026-08-21)
Feb. 25, 2015	NI	G	10,000	—	—	111,484 Direct	-8.23%	Disposed	(price as of 2026-08-21)
Feb. 18, 2015	NI	F	13,488	$43.91	$592,258	121,484 Direct	-9.99%	Disposed	140.7% (price as of 2026-08-21)
Feb. 18, 2015	NI	A	15,982	$43.91	$701,770	134,972 Direct	+13.43%	Acquired	140.7% (price as of 2026-08-21)
Jan. 29, 2015	NI	A	10,302	$43.68	$449,991	118,990 Direct	+9.48%	Acquired	141.9% (price as of 2026-08-21)
Feb. 28, 2014	NI	G	5,000	—	—	108,688 Direct	-4.40%	Disposed	(price as of 2026-08-21)
Feb. 28, 2014	NI	S	7,000	$35.03	$245,210	113,688 Direct	-5.80%	Disposed	201.7% (price as of 2026-08-21)
Feb. 18, 2014	NI	F	8,528	$35.30	$301,038	120,688 Direct	-6.60%	Disposed	199.4% (price as of 2026-08-21)
Feb. 18, 2014	NI	A	2,846	$35.30	$100,464	129,216 Direct	+2.25%	Acquired	199.4% (price as of 2026-08-21)
Jan. 30, 2014	NI	A	13,135	$34.26	$450,005	126,370 Direct	+11.60%	Acquired	208.5% (price as of 2026-08-21)
Sept. 12, 2013	NI	G	6,000	—	—	113,235 Direct	-5.03%	Disposed	(price as of 2026-08-21)
March 1, 2013	NI	G	3,000	—	—	119,235 Direct	-2.45%	Disposed	(price as of 2026-08-21)
Feb. 28, 2013	NI	S	7,000	$27.72	$194,040	122,235 Direct	-5.42%	Disposed	281.2% (price as of 2026-08-21)
Jan. 31, 2013	NI	F	9,176	$26.93	$247,110	129,235 Direct	-6.63%	Disposed	292.4% (price as of 2026-08-21)
Jan. 24, 2013	NI	A	16,981	$26.50	$449,996	138,411 Direct	+13.98%	Acquired	298.8% (price as of 2026-08-21)
Jan. 24, 2013	NI	A	2,538	$26.50	$67,257	121,430 Direct	+2.13%	Acquired	298.8% (price as of 2026-08-21)
June 12, 2012	NI	G	8,173	—	—	118,892 Direct	-6.43%	Disposed	(price as of 2026-08-21)
Jan. 31, 2012	NI	F	13,732	$22.86	$313,914	127,009 Direct	-9.76%	Disposed	362.3% (price as of 2026-08-21)
Jan. 31, 2012	NI	A	8,534	$22.86	$195,087	140,741 Direct	+6.46%	Acquired	362.3% (price as of 2026-08-21)
Jan. 31, 2011	NI	D	2,859	—	—	112,819 Direct	-2.47%	Disposed	(price as of 2026-08-21)
Jan. 31, 2011	NI	F	4,448	$18.70	$83,178	115,678 Direct	-3.70%	Disposed	465.1% (price as of 2026-08-21)
Jan. 28, 2011	NI	A	22,764	$18.67	$425,004	120,126 Direct	+23.38%	Acquired	466.0% (price as of 2026-08-21)
March 23, 2010	NI	A	25,381	$15.76	$400,005	97,241 Direct	+35.32%	Acquired	570.6% (price as of 2026-08-21)
Jan. 4, 2010	NI	F	2,172	$15.56	$33,796	70,735 Direct	-2.98%	Disposed	579.2% (price as of 2026-08-21)
Jan. 4, 2010	NI	F	2,172	$15.56	$33,796	70,745 Direct	-2.98%	Disposed	579.2% (price as of 2026-08-21)
Dec. 31, 2009	NI	F	3,665	$15.55	$56,991	72,907 Direct	-4.79%	Disposed	579.6% (price as of 2026-08-21)
Dec. 31, 2009	NI	F	3,655	$15.55	$56,835	67,090 Direct	-5.17%	Disposed	579.6% (price as of 2026-08-21)
March 24, 2009	NI	A	34,483	$10.15	$350,002	76,572 Direct	+81.93%	Acquired	941.2% (price as of 2026-08-21)
Jan. 2, 2009	NI	S	2,179	$11.12	$24,230	41,582 Direct	-4.98%	Disposed	850.4% (price as of 2026-08-21)
March 25, 2008	NI	A	17,153	$17.49	$300,006	42,785 Direct	+66.92%	Acquired	504.2% (price as of 2026-08-21)
Jan. 25, 2008	NI	A	2,046	—	—	25,620 Direct	+8.68%	Acquired	(price as of 2026-08-21)
March 6, 2007	NI	A	10,230	—	—	22,584 Direct	+82.81%	Acquired	(price as of 2026-08-21)

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.

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
May 16, 2006	NI	Common Stock	24,134	Direct
May 16, 2006	NI	Common Stock	2,112	Indirect