{"entity":{"type":"insider","cik":"0001527914","url":"/insider/0001527914","json_url":"/insider/0001527914.json","name":"G.F.W. Energy VIII, L.P.","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":10,"n_filings":6,"first":"2014-11-20","last":"2016-11-03","span_basis":"filed_date"},"name_variants":[{"name":"G.F.W. Energy VIII, L.P.","source":"filing","n_filings":6,"first_seen":"2014-11-20","last_seen":"2016-11-03"}],"transactions":[{"id":2235364,"accession":"0000899243-16-032738","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-16-032738","line_url":"/filing/0000899243-16-032738#line-1","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"PennTex Midstream Partners, LP","issuer_ticker":"PTXP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"Natural Gas Partners IX, L.P.; G.F.W. ENERGY IX, L.P.; MRD Holdco LLC; G.F.W. Energy VIII, L.P.; GFW IX, L.L.C.; GFW VIII, L.L.C.; Natural Gas Partners VIII, L.P.; MRD MIDSTREAM LLC; NGP IX Offshore Holdings, L.P.","owner_url":null,"role":"Ten percent owner","officer_title":null,"security_title":"Common Units (Limited Partner Interests)","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2127704.0,"shares_display":"2,127,704","price_per_share":17.05,"price_display":"17.05","price_state":"stated","total_value":36277353.2,"total_display":"36,277,353.20","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-11-01","filed_date":"2016-11-03","scope":"insider"},{"id":8790794,"accession":"0001140361-15-021090","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001140361-15-021090","line_url":"/filing/0001140361-15-021090#line-2","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"GFW VIII, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; Natural Gas Partners VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; NGP IX Offshore Holdings, L.P.; NGP Energy Capital Management, L.L.C.; GFW IX, L.L.C.","owner_url":null,"role":"Ten percent owner, Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":14.81,"price_display":"14.81","price_state":"stated","total_value":148100.0,"total_display":"148,100.00","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-05-19","filed_date":"2015-05-20","scope":"insider"},{"id":8790793,"accession":"0001140361-15-021090","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-15-021090","line_url":"/filing/0001140361-15-021090#line-1","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"GFW VIII, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; Natural Gas Partners VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; NGP IX Offshore Holdings, L.P.; NGP Energy Capital Management, L.L.C.; GFW IX, L.L.C.","owner_url":null,"role":"Ten percent owner, Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":180514.0,"shares_display":"180,514","price_per_share":15.01,"price_display":"15.01","price_state":"stated","total_value":2709515.14,"total_display":"2,709,515.14","shares_owned_after":10000.0,"shares_owned_after_display":"10,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-05-18","filed_date":"2015-05-20","scope":"insider"},{"id":8535259,"accession":"0001209191-15-035232","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001209191-15-035232","line_url":"/filing/0001209191-15-035232#line-4","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"NGP Energy Capital Management, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; Natural Gas Partners VIII, L.P.; GFW IX, L.L.C.; NGP IX Offshore Holdings, L.P.; GFW VIII, L.L.C.","owner_url":null,"role":"Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":89185.0,"shares_display":"89,185","price_per_share":17.18,"price_display":"17.18","price_state":"stated","total_value":1532198.3,"total_display":"1,532,198.30","shares_owned_after":190514.0,"shares_owned_after_display":"190,514","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-20","filed_date":"2015-04-20","scope":"insider"},{"id":8535255,"accession":"0001209191-15-035232","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-035232","line_url":"/filing/0001209191-15-035232#line-3","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"NGP Energy Capital Management, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; Natural Gas Partners VIII, L.P.; GFW IX, L.L.C.; NGP IX Offshore Holdings, L.P.; GFW VIII, L.L.C.","owner_url":null,"role":"Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":30493.0,"shares_display":"30,493","price_per_share":17.0,"price_display":"17.00","price_state":"stated","total_value":518381.0,"total_display":"518,381.00","shares_owned_after":279699.0,"shares_owned_after_display":"279,699","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-20","filed_date":"2015-04-20","scope":"insider"},{"id":8535251,"accession":"0001209191-15-035232","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-15-035232","line_url":"/filing/0001209191-15-035232#line-2","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"NGP Energy Capital Management, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; Natural Gas Partners VIII, L.P.; GFW IX, L.L.C.; NGP IX Offshore Holdings, L.P.; GFW VIII, L.L.C.","owner_url":null,"role":"Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":236927.0,"shares_display":"236,927","price_per_share":16.99,"price_display":"16.99","price_state":"stated","total_value":4025389.73,"total_display":"4,025,389.73","shares_owned_after":310192.0,"shares_owned_after_display":"310,192","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-17","filed_date":"2015-04-20","scope":"insider"},{"id":8535240,"accession":"0001209191-15-035232","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-15-035232","line_url":"/filing/0001209191-15-035232#line-1","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"NGP Energy Capital Management, L.L.C.; G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; Natural Gas Partners IX, L.P.; Natural Gas Partners VIII, L.P.; GFW IX, L.L.C.; NGP IX Offshore Holdings, L.P.; GFW VIII, L.L.C.","owner_url":null,"role":"Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":152130.0,"shares_display":"152,130","price_per_share":17.19,"price_display":"17.19","price_state":"stated","total_value":2615114.7,"total_display":"2,615,114.70","shares_owned_after":547119.0,"shares_owned_after_display":"547,119","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-16","filed_date":"2015-04-20","scope":"insider"},{"id":8811930,"accession":"0001209191-15-034602","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-15-034602","line_url":"/filing/0001209191-15-034602#line-2","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Production Partners LP","issuer_ticker":"MEMP","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"Natural Gas Partners VIII, L.P.; NGP Energy Capital Management, L.L.C.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; NGP IX Offshore Holdings, L.P.; GFW IX, L.L.C.; G.F.W. ENERGY IX, L.P.; GFW VIII, L.L.C.; Natural Gas Partners IX, L.P.","owner_url":null,"role":"Other","officer_title":null,"security_title":"Common units representing limited partner interests","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4661663.0,"shares_display":"4,661,663","price_per_share":16.6,"price_display":"16.60","price_state":"stated","total_value":77383605.8,"total_display":"77,383,605.80","shares_owned_after":699249.0,"shares_owned_after_display":"699,249","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-14","filed_date":"2015-04-16","scope":"insider"},{"id":6772883,"accession":"0001140361-14-043261","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-14-043261","line_url":"/filing/0001140361-14-043261#line-1","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Resource Development Corp.","issuer_ticker":"MRD","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"G.F.W. ENERGY IX, L.P.; Natural Gas Partners IX, L.P.; GFW IX, L.L.C.; MRD Holdco LLC; G.F.W. Energy VIII, L.P.; GFW VIII, L.L.C.; NGP Energy Capital Management, L.L.C.; NGP IX Offshore Holdings, L.P.; Natural Gas Partners VIII, L.P.","owner_url":null,"role":"Ten percent owner, Other","officer_title":null,"security_title":"Common Stock, par value $0.01","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3341938.0,"shares_display":"3,341,938","price_per_share":22.25,"price_display":"22.25","price_state":"stated","total_value":74358120.5,"total_display":"74,358,120.50","shares_owned_after":74407005.0,"shares_owned_after_display":"74,407,005","ownership_form":"I","is_10b5_1":null,"transaction_date":"2014-11-21","filed_date":"2014-11-24","scope":"insider"},{"id":6932866,"accession":"0001140361-14-042987","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-14-042987","line_url":"/filing/0001140361-14-042987#line-1","is_derivative":false,"issuer_cik":"0001377291","issuer_name":"Memorial Resource Development Corp.","issuer_ticker":"MRD","issuer_name_source":null,"issuer_url":"/issuer/0001377291","owner_cik":null,"owner_name":"G.F.W. ENERGY IX, L.P.; G.F.W. Energy VIII, L.P.; MRD Holdco LLC; GFW VIII, L.L.C.; NGP Energy Capital Management, L.L.C.; GFW IX, L.L.C.; NGP IX Offshore Holdings, L.P.; Natural Gas Partners IX, L.P.; Natural Gas Partners VIII, L.P.","owner_url":null,"role":"Ten percent owner, Other","officer_title":null,"security_title":"Common Shares, par value $0.01","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":23196734.0,"shares_display":"23,196,734","price_per_share":22.25,"price_display":"22.25","price_state":"stated","total_value":516127331.5,"total_display":"516,127,331.50","shares_owned_after":77748943.0,"shares_owned_after_display":"77,748,943","ownership_form":"I","is_10b5_1":null,"transaction_date":"2014-11-18","filed_date":"2014-11-20","scope":"insider"}],"next_cursor":null,"ledger_fault":false,"count":{"value":0,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":0,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":0},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001617798","name":"PennTex Midstream Partners, LP","url":"/issuer/0001617798","role":"Ten percent owner","n_filings":1,"first_seen":"2016-11-03","last_seen":"2016-11-03"},{"type":"issuer","type_label":"ISSUER","cik":"0001521847","name":"Memorial Production Partners LP","url":"/issuer/0001521847","role":"Ten percent owner, Other","n_filings":3,"first_seen":"2015-04-16","last_seen":"2015-05-20"},{"type":"issuer","type_label":"ISSUER","cik":"0001599222","name":"Memorial Resource Development Corp.","url":"/issuer/0001599222","role":"Ten percent owner, Other","n_filings":2,"first_seen":"2014-11-20","last_seen":"2014-11-24"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001527914","retrieved_at":"2026-08-21T05:26:52+00:00","coverage":{"filings":1505395,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-20","last_ingest":"2026-08-21T05:23:33.898496+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}