Robert Grabb

Insider

First SEC filing: Feb. 13, 2018 · Latest: Feb. 13, 2018

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

NOG selling Dec. 4, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 29 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

29 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 31, 2022	NOG	A	1,197	—	—	55,682 Direct	+2.20%	Acquired	(price as of 2026-08-19)
Dec. 31, 2021	NOG	A	1,458	—	—	54,485 Direct	+2.75%	Acquired	(price as of 2026-08-19)
Oct. 1, 2021	NOG	A	1,341	—	—	53,027 Direct	+2.59%	Acquired	(price as of 2026-08-19)
July 1, 2021	NOG	A	1,415	—	—	51,686 Direct	+2.81%	Acquired	(price as of 2026-08-19)
April 9, 2021	NOG	A	2,394	—	—	50,271 Direct	+5.00%	Acquired	(price as of 2026-08-19)
Sept. 30, 2020	NOG	A	5,226	—	—	44,433 Direct	+13.33%	Acquired	(price as of 2026-08-19)
June 30, 2020	NOG	A	35,714	—	—	392,072 Direct	+10.02%	Acquired	(price as of 2026-08-19)
June 4, 2020	NOG	A	36,145	—	—	356,358 Direct	+11.29%	Acquired	(price as of 2026-08-19)
Dec. 31, 2019	NOG	D	24,000	—	—	320,213 Direct	-6.97%	Disposed	(price as of 2026-08-19)
June 28, 2019	NOG	D	6,000	—	—	344,213 Direct	-1.71%	Disposed	(price as of 2026-08-19)
Jan. 4, 2019	NOG	A	18,000	—	—	350,213 Direct	+5.42%	Acquired	(price as of 2026-08-19)
Jan. 4, 2019	NOG	A	46,800	—	—	332,213 Direct	+16.40%	Acquired	(price as of 2026-08-19)
Dec. 4, 2018	NOG	S	1,978	$2.71	$5,360	285,413 Direct	-0.69%	Disposed	-4.2% (price as of 2026-08-19)
June 1, 2018	NOG	A	46,800	—	—	271,891 Direct	+20.79%	Acquired	(price as of 2026-08-19)
June 1, 2018	NOG	A	18,000	—	—	289,891 Direct	+6.62%	Acquired	(price as of 2026-08-19)
May 3, 2018	NOG	G	500	—	—	287,391 Direct	-0.17%	Disposed	(price as of 2026-08-19)
Nov. 24, 2017	NOG	S	5,000	$1.25	$6,250	227,191 Direct	-2.15%	Disposed	107.6% (price as of 2026-08-19)
May 24, 2017	NOG	A	66,666	—	—	232,191 Direct	+40.28%	Acquired	(price as of 2026-08-19)
Feb. 13, 2017	NOG	G	3,300	—	—	165,525 Direct	-1.95%	Disposed	(price as of 2026-08-19)
June 7, 2016	NOG	G	2,000	—	—	287,891 Direct	-0.69%	Disposed	(price as of 2026-08-19)
April 6, 2016	NOG	A	30,150	—	—	168,825 Direct	+21.74%	Acquired	(price as of 2026-08-19)
April 7, 2015	NOG	A	13,437	—	—	138,675 Direct	+10.73%	Acquired	(price as of 2026-08-19)
Feb. 25, 2014	NOG	A	7,500	—	—	125,238 Direct	+6.37%	Acquired	(price as of 2026-08-19)
Jan. 17, 2013	NOG	A	10,000	—	—	121,738 Direct	+8.95%	Acquired	(price as of 2026-08-19)
Dec. 29, 2011	NOG	A	10,000	—	—	111,738 Direct	+9.83%	Acquired	(price as of 2026-08-19)
March 3, 2011	NOG	S	32,462	$31.95	$1,037,161	101,738 Direct	-24.19%	Disposed	-91.9% (price as of 2026-08-19)
March 2, 2011	NOG	S	32,462	$31.95	$1,037,161	101,738 Direct	-24.19%	Disposed	-91.9% (price as of 2026-08-19)
Nov. 30, 2010	NOG	A	10,000	—	—	134,200 Direct	+8.05%	Acquired	(price as of 2026-08-19)
March 17, 2010	NOG	S	800	$13.29	$10,632	124,200 Direct	-0.64%	Disposed	-80.5% (price as of 2026-08-19)
Dec. 15, 2009	NOG	S	27,939	$10.34	$288,889	125,000 Direct	-18.27%	Disposed	-74.9% (price as of 2026-08-19)
Dec. 14, 2009	NOG	M	100,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Dec. 14, 2009	NOG	F	52,061	$9.95	$518,007	152,939 Direct	-25.40%	Disposed	-73.9% (price as of 2026-08-19)
Dec. 14, 2009	NOG	M	100,000	$5.18	$518,000	205,000 Direct	+95.24%	Acquired	-49.9% (price as of 2026-08-19)
Dec. 7, 2009	NOG	A	25,000	—	—	105,000 Direct	+31.25%	Acquired	(price as of 2026-08-19)
April 11, 2008	NOG	P	80,000	$9.02	$721,600	80,000 Direct	—	Acquired	-71.2% (price as of 2026-08-19)
Nov. 1, 2007	NOG	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-19)

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
Dec. 14, 2009	NOG	Option to Purchase Common Stock	Common Stock (100,000)	$5.18	Nov. 1, 2017	100,000	Disposed
Nov. 1, 2007	NOG	Option to Purchase Common Stock [F1]	Common Stock (100,000)	$5.18	Nov. 1, 2017	100,000	Acquired

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