Company · CIK 0001690769 · SIC 1311 — Crude Petroleum & Natural Gas

Alta Mesa Resources, Inc. /DE · AMR

Insider activity reported against this company. All insider holders · On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $18.3M · 4sales $33.0M · 1net −$14.7M

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Feb 9, 2019 FForm 4 →	Feb 19, 4:50 pm EST	Michael Anthony McCabeVP	29,496	$0.77	$22,712	96,290	—	plan? late
Feb 9, 2019 FForm 4 →	Feb 19, 4:47 pm EST	Ronald Jay SmithVP and CAO	2,331	$0.77	$1,795	39,980	—	plan? late
Feb 9, 2019 CForm 4 →	Feb 12, 5:08 pm EST	HPS Investment Partners, LLC10% Owner	4,016,160	—	—	2,029,566	—	plan?
Sep 5, 2018 PForm 4 →	Sep 7, 7:55 pm EDT	BAYOU CITY ENERGY MANAGEMENT LLC +1Director, 10% Owner	311,111	$4.73	$1,472,536	4,133,911	+8.14%	plan?
Aug 29, 2018 PForm 4 →	Aug 31, 4:10 pm EDT	BAYOU CITY ENERGY MANAGEMENT LLC +1Director, 10% Owner	422,000	$4.89	$2,065,360	3,822,800	+12.4%	plan?
Aug 20, 2018 AForm 4 →	Aug 21, 4:30 pm EDT	Ronald Jay SmithVP and CAO	18,476	—	—	42,311	—	plan?
Aug 20, 2018 AForm 4 →	Aug 21, 4:30 pm EDT	Homer Gene ColeVP and Chief Technical Officer	34,642	—	—	160,428	—	plan?
Aug 17, 2018 PForm 4 →	Aug 21, 9:08 pm EDT	BAYOU CITY ENERGY MANAGEMENT LLC +1Director, 10% Owner	3,400,800	$4.34	$14,748,802	3,400,800	—	plan?
Jun 18, 2018 AForm 4 →	Jun 18, 6:01 pm EDT	Sylvia J KerriganDirector	24,823	—	—	24,823	—	plan?
Jun 9, 2018 CForm 4 →	Jun 11, 4:37 pm EDT	HPS Investment Partners, LLC10% Owner	44,294,995	—	—	1,849,352	—	plan?
Apr 13, 2018 PForm 4 →	Apr 17, 4:29 pm EDT	Ronald Jay SmithVP & CAO	250	$7.35	$1,838	23,835	+1.06%	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 3:04 pm EDT	Jeffrey TepperDirector	18,344	—	—	51,344	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 3:04 pm EDT	David MurrellVP, Land & Business Dev.	47,170	—	—	47,170	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 3:00 pm EDT	Donald R. SinclairDirector	18,344	—	—	18,344	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 3:00 pm EDT	Craig W CollinsCOO - Midstream	247,875	—	—	247,875	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:56 pm EDT	Diana J WaltersDirector	18,344	—	—	51,344	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:56 pm EDT	Homer Gene ColeVP & Chief Technical Officer	125,786	—	—	125,786	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:52 pm EDT	Ronald Jay SmithVP & CAO	23,585	—	—	23,585	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:51 pm EDT	Kimberly O. WarnicaSee Remarks	85,592	—	—	85,592	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:49 pm EDT	William D. GutermuthDirector	18,344	—	—	51,344	—	plan?
Apr 12, 2018 AForm 4 →	Apr 13, 2:48 pm EDT	Michael Anthony McCabeCFO	125,786	—	—	125,786	—	plan?
Feb 9, 2018 ACForm 4 →	Feb 13, 9:07 pm EST	Silver Run Sponsor II, LLC +8Director, 10% Owner	85,776,000	$10.00	$400,000,000	20,000,000	—	plan?
Feb 9, 2018 CForm 4 →	Feb 13, 4:17 pm EST	Jeffrey TepperDirector	33,000	—	—	33,000	—	plan?
Feb 9, 2018 CForm 4 →	Feb 13, 4:15 pm EST	William D. GutermuthDirector	33,000	—	—	33,000	—	plan?
Feb 9, 2018 CForm 4 →	Feb 13, 4:15 pm EST	Diana J WaltersDirector	33,000	—	—	33,000	—	plan?
Sep 29, 2017 SForm 4 →	Oct 3, 4:16 pm EDT	HIGHFIELDS CAPITAL MANAGEMENT LP +210% Owner	3,241,000	$10.17	$32,960,970	8,259,000	−28.2%	plan?

Reported at this company — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Nov 13, 2018 JForm 4 →	Nov 15, 5:07 pm EST	MME Mission Hope, LLC10% Owner	2,752,312	—	—	2,752,312	—
Nov 13, 2018 JForm 4 →	Nov 15, 5:03 pm EST	High Mesa Holdings GP, LLC10% Owner	2,752,312	—	—	181,329,784	—
Nov 13, 2018 JForm 4 →	Nov 15, 5:02 pm EST	High Mesa Holdings, LP10% Owner	2,752,312	—	—	180,391,612	—
Apr 9, 2018 AForm 4 →	Apr 11, 2:36 pm EDT	Kimberly O. WarnicaSee Remarks	192,582	—	—	192,582	—
Apr 3, 2018 AForm 4 →	Apr 5, 3:29 pm EDT	Craig W CollinsCOO - Midstream	119,511	—	—	119,511	—
Feb 9, 2018 JForm 4 →	Jun 12, 2:20 pm EDT	Michael Anthony McCabeCFO, 10% Owner	251,223	—	—	251,223	—	late
Feb 9, 2018 JForm 4 →	Jun 12, 2:18 pm EDT	Michael Edward EllisCOO Upstream, Director, 10% Owner	40,505,265	—	—	40,515,265	—	late
Feb 9, 2018 JForm 4 →	Jun 12, 2:17 pm EDT	Harlan H. ChappelleCEO, Director, 10% Owner	12,316,208	—	—	12,316,208	—	late
Feb 9, 2018 JForm 4 →	Jun 12, 2:13 pm EDT	Homer Gene ColeVP & Chief Technical Officer, 10% Owner	201,223	—	—	251,223	—	late
Feb 9, 2018 JForm 4 →	Jun 12, 8:54 am EDT	William Wallace McMullenDirector, 10% Owner	81,305,340	—	—	81,305,340	—	late
Feb 9, 2018 ACForm 4 →	Feb 13, 9:07 pm EST	Silver Run Sponsor II, LLC +8Director, 10% Owner	74,242,666	$1.50	$42,699,999	20,000,000	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:22 pm EST	Harlan H. ChappelleCEO, Director	589,623	—	—	589,623	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:22 pm EST	Michael Edward EllisCOO Upstream	353,774	—	—	353,774	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:21 pm EST	David MurrellVP, Land & Business Dev.	106,132	—	—	106,132	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:20 pm EST	James T HackettExec Chair & COO- Midstream, Director	589,623	—	—	589,623	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:18 pm EST	Ronald Jay SmithVP & CAO	53,066	—	—	53,066	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:18 pm EST	Homer Gene ColeVP & Chief Technical Officer	283,019	—	—	283,019	—
Feb 9, 2018 CForm 4 →	Feb 13, 4:17 pm EST	Jeffrey TepperDirector	33,000	—	—	0	—
Feb 9, 2018 AForm 4 →	Feb 13, 4:17 pm EST	Michael Anthony McCabeCFO, CCO & Secretary	283,019	—	—	283,019	—
Feb 9, 2018 CForm 4 →	Feb 13, 4:15 pm EST	William D. GutermuthDirector	33,000	—	—	0	—
Feb 9, 2018 CForm 4 →	Feb 13, 4:15 pm EST	Diana J WaltersDirector	33,000	—	—	0	—