Insider holders · CIK 0001690769
Alta Mesa Resources, Inc. /DE · AMR
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Riverstone VI Alta Mesa Holdings, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone Energy Partners VI (Non-U.S.), LLC10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone AMR Partners-U, LLC10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone AMR Partners-T, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone AMR Partners, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone/Gower Mgmt Co Holdings, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone Management Group, L.L.C.10% Owner | — | 20,000,000 | 20,000,000 | Feb 14, 2018 · 4:11 pm EST | Form 3 |
| Riverstone Energy VI Holdings GP, LLC10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Riverstone VI SR II Holdings, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Silver Run Sponsor II, LLCDirector | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Riverstone Energy Partners VI, L.P.10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Riverstone Energy GP VI, LLC10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Riverstone Energy GP VI Corp.10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| RIVERSTONE HOLDINGS LLC10% Owner | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| Pierre F Lapeyre Jr.Director | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| David M LeuschenDirector | — | 20,000,000 | 20,000,000 | Feb 13, 2018 · 9:07 pm EST | Form 4 |
| HIGHFIELDS GP LLC10% Owner | — | 8,259,000 | 8,259,000 | Oct 3, 2017 · 4:16 pm EDT | Form 4 |
| Jonathon S Jacobson10% Owner | — | 8,259,000 | 8,259,000 | Oct 3, 2017 · 4:16 pm EDT | Form 4 |
| HIGHFIELDS CAPITAL MANAGEMENT LP10% Owner | — | 8,259,000 | 8,259,000 | Oct 3, 2017 · 4:16 pm EDT | Form 4 |
| BAYOU CITY ENERGY MANAGEMENT LLCDirector | 0 | 4,133,911 | 4,133,911 | Sep 7, 2018 · 7:55 pm EDT | Form 4 |
| William Wallace McMullenDirector | — | 4,133,911 | 4,133,911 | Sep 7, 2018 · 7:55 pm EDT | Form 4 |
| HPS Investment Partners, LLC10% Owner | — | 2,029,566 | 2,029,566 | Feb 12, 2019 · 5:08 pm EST | Form 4 |
| Craig W CollinsCOO - Midstream | 247,875 | — | 247,875 | Apr 13, 2018 · 3:00 pm EDT | Form 4 |
| Homer Gene ColeVP and Chief Technical Officer | 160,428 | — | 160,428 | Aug 21, 2018 · 4:30 pm EDT | Form 4 |
| Michael Anthony McCabeVP | 96,290 | — | 96,290 | Feb 19, 2019 · 4:50 pm EST | Form 4 |
| Kimberly O. WarnicaSee Remarks | 85,592 | — | 85,592 | Apr 13, 2018 · 2:51 pm EDT | Form 4 |
| Jeffrey TepperDirector | 51,344 | — | 51,344 | Apr 13, 2018 · 3:04 pm EDT | Form 4 |
| William D. GutermuthDirector | 51,344 | — | 51,344 | Apr 13, 2018 · 2:49 pm EDT | Form 4 |
| Diana J WaltersDirector | 51,344 | — | 51,344 | Apr 13, 2018 · 2:56 pm EDT | Form 4 |
| David MurrellVP, Land & Business Dev. | 47,170 | — | 47,170 | Apr 13, 2018 · 3:04 pm EDT | Form 4 |
| Ronald Jay SmithVP and CAO | 39,980 | — | 39,980 | Feb 19, 2019 · 4:47 pm EST | Form 4 |
| Sylvia J KerriganDirector | 24,823 | — | 24,823 | Jun 18, 2018 · 6:01 pm EDT | Form 4 |
| Dale Hayes10% Owner | 18,868 | — | 18,868 | Jun 12, 2018 · 2:05 pm EDT | Form 3 |
| Donald R. SinclairDirector | 18,344 | — | 18,344 | Apr 13, 2018 · 3:00 pm EDT | Form 4 |
| BCE-MESA HOLDINGS LLC10% Owner | 0 | — | 0 | Jun 12, 2018 · 8:48 am EDT | Form 3 |
| AM Equity Holdings, LP10% Owner | 0 | — | 0 | Jun 12, 2018 · 1:54 pm EDT | Form 3 |
| MME Mission Hope, LLC10% Owner | 0 | — | 0 | Jun 12, 2018 · 2:00 pm EDT | Form 3 |
| AM MME Holdings, LP10% Owner | 0 | — | 0 | Jun 12, 2018 · 1:59 pm EDT | Form 3 |
| Galveston Bay Resources Holdings, LP10% Owner | 0 | — | 0 | Jun 12, 2018 · 2:10 pm EDT | Form 3 |
| High Mesa Holdings GP, LLC10% Owner | 0 | — | 0 | Jun 12, 2018 · 2:09 pm EDT | Form 3 |
| High Mesa Holdings, LP10% Owner | 0 | — | 0 | Jun 12, 2018 · 2:08 pm EDT | Form 3 |
| High Mesa Inc.10% Owner | 0 | — | 0 | Jun 12, 2018 · 2:06 pm EDT | Form 3 |
| Petro Acquisitions Holdings, LP10% Owner | 0 | — | 0 | Jun 12, 2018 · 1:55 pm EDT | Form 3 |
| Petro Operating Co Holdings, Inc.10% Owner | 0 | — | 0 | Jun 12, 2018 · 1:56 pm EDT | Form 3 |
| Mark CastiglioneChief of Staff | 0 | — | 0 | Jan 9, 2019 · 4:24 pm EST | Form 3 |
| John H Campbell Jr.Interim COO - Upstream | 0 | — | 0 | Jan 9, 2019 · 4:28 pm EST | Form 3 |
| John C ReganVP & CFO | 0 | — | 0 | Jan 11, 2019 · 5:21 pm EST | Form 3 |
| Randy L LimbacherInterim President | 0 | — | 0 | Jan 9, 2019 · 5:27 pm EST | Form 3 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.