Michael A Frantz

Insider

First SEC filing: Aug. 19, 2016 · Latest: Aug. 19, 2016

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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

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

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 30, 2026	NOG	A	2,410	—	—	67,141 Direct	+3.72%	Acquired	(price as of 2026-08-20)
June 30, 2025	NOG	A	1,543	—	—	59,433 Direct	+2.67%	Acquired	(price as of 2026-08-20)
March 31, 2025	NOG	A	1,447	—	—	57,890 Direct	+2.56%	Acquired	(price as of 2026-08-20)
Dec. 31, 2024	NOG	A	1,177	—	—	56,443 Direct	+2.13%	Acquired	(price as of 2026-08-20)
Sept. 30, 2024	NOG	A	1,236	—	—	55,266 Direct	+2.29%	Acquired	(price as of 2026-08-20)
June 28, 2024	NOG	A	1,177	—	—	54,030 Direct	+2.23%	Acquired	(price as of 2026-08-20)
April 1, 2024	NOG	A	1,103	—	—	52,853 Direct	+2.13%	Acquired	(price as of 2026-08-20)
Dec. 29, 2023	NOG	A	1,012	—	—	51,750 Direct	+1.99%	Acquired	(price as of 2026-08-20)
Sept. 29, 2023	NOG	A	932	—	—	50,738 Direct	+1.87%	Acquired	(price as of 2026-08-20)
June 30, 2023	NOG	A	1,093	—	—	49,806 Direct	+2.24%	Acquired	(price as of 2026-08-20)
March 31, 2023	NOG	A	1,236	—	—	48,713 Direct	+2.60%	Acquired	(price as of 2026-08-20)
Dec. 30, 2022	NOG	A	1,095	—	—	47,477 Direct	+2.36%	Acquired	(price as of 2026-08-20)
Sept. 30, 2022	NOG	A	1,231	—	—	46,382 Direct	+2.73%	Acquired	(price as of 2026-08-20)
June 30, 2022	NOG	A	1,336	—	—	45,151 Direct	+3.05%	Acquired	(price as of 2026-08-20)
March 31, 2022	NOG	A	1,197	—	—	43,815 Direct	+2.81%	Acquired	(price as of 2026-08-20)
Dec. 31, 2021	NOG	A	1,458	—	—	42,618 Direct	+3.54%	Acquired	(price as of 2026-08-20)
Oct. 1, 2021	NOG	A	1,341	—	—	41,160 Direct	+3.37%	Acquired	(price as of 2026-08-20)
July 1, 2021	NOG	A	1,415	—	—	39,819 Direct	+3.68%	Acquired	(price as of 2026-08-20)
April 9, 2021	NOG	A	2,394	—	—	38,404 Direct	+6.65%	Acquired	(price as of 2026-08-20)
Sept. 30, 2020	NOG	A	5,226	—	—	32,566 Direct	+19.11%	Acquired	(price as of 2026-08-20)
June 30, 2020	NOG	A	35,714	—	—	273,407 Direct	+15.03%	Acquired	(price as of 2026-08-20)
June 4, 2020	NOG	A	36,145	—	—	237,693 Direct	+17.93%	Acquired	(price as of 2026-08-20)
Dec. 31, 2019	NOG	D	24,000	—	—	201,548 Direct	-10.64%	Disposed	(price as of 2026-08-20)
June 28, 2019	NOG	D	6,000	—	—	225,548 Direct	-2.59%	Disposed	(price as of 2026-08-20)
Jan. 4, 2019	NOG	A	18,000	—	—	231,548 Direct	+8.43%	Acquired	(price as of 2026-08-20)
Jan. 4, 2019	NOG	A	54,000	—	—	213,548 Direct	+33.85%	Acquired	(price as of 2026-08-20)
June 1, 2018	NOG	A	18,000	—	—	159,548 Direct	+12.72%	Acquired	(price as of 2026-08-20)
June 1, 2018	NOG	A	54,000	—	—	141,548 Direct	+61.68%	Acquired	(price as of 2026-08-20)
Jan. 26, 2018	NOG	A	1,201	—	—	87,548 Direct	+1.39%	Acquired	(price as of 2026-08-20)
May 24, 2017	NOG	A	66,666	—	—	86,347 Direct	+338.73%	Acquired	(price as of 2026-08-20)
Sept. 27, 2016	NOG	A	19,231	—	—	19,681 Direct	+4273.56%	Acquired	(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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Aug. 19, 2016	NOG	Common Stock	450	Direct