{"transactions":[{"id":688253,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2026-08-13T17:09:19.000Z","date":"2026-08-12","kind":"grant","planned":false,"acquired":true,"shares":5044,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2027-08-12","expiration_date":"2027-09-12","underlying":"Common Units","underlying_shares":5044},"source":{"system":"sec-edgar","filing":"0001193125-26-348604","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000119312526348604/ownership.xml","form_type":"4"}},{"id":693361,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2026-08-07T11:32:38.000Z","date":"2026-08-06","kind":"exercise","planned":false,"acquired":false,"shares":5005,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2026-08-06","expiration_date":"2026-09-06","underlying":"Common Units","underlying_shares":5005},"source":{"system":"sec-edgar","filing":"0001193125-26-339176","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000119312526339176/ownership.xml","form_type":"4"}},{"id":693360,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2026-08-07T11:32:38.000Z","date":"2026-08-06","kind":"exercise","planned":false,"acquired":true,"shares":5005,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":36935,"source":{"system":"sec-edgar","filing":"0001193125-26-339176","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000119312526339176/ownership.xml","form_type":"4"}},{"id":1071576,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2025-08-08T14:19:18.000Z","date":"2025-08-07","kind":"exercise","planned":false,"acquired":false,"shares":4882,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2025-08-07","expiration_date":"2025-09-07","underlying":"Common Units","underlying_shares":4882},"source":{"system":"sec-edgar","filing":"0001158643-25-000005","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000115864325000005/ownership.xml","form_type":"4"}},{"id":1071575,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2025-08-08T14:19:18.000Z","date":"2025-08-06","kind":"grant","planned":false,"acquired":true,"shares":5005,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2026-08-06","expiration_date":"2026-09-06","underlying":"Common Units","underlying_shares":5005},"source":{"system":"sec-edgar","filing":"0001158643-25-000005","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000115864325000005/ownership.xml","form_type":"4"}},{"id":1071574,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2025-08-08T14:19:18.000Z","date":"2025-08-07","kind":"exercise","planned":false,"acquired":true,"shares":4882,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":31930,"source":{"system":"sec-edgar","filing":"0001158643-25-000005","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000115864325000005/ownership.xml","form_type":"4"}},{"id":1436216,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2024-08-12T13:31:31.000Z","date":"2024-08-09","kind":"exercise","planned":false,"acquired":false,"shares":4560,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2024-08-09","expiration_date":"2024-09-09","underlying":"Common Units","underlying_shares":4560},"source":{"system":"sec-edgar","filing":"0000950170-24-095124","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000095017024095124/ownership.xml","form_type":"4"}},{"id":1436215,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2024-08-12T13:31:31.000Z","date":"2024-08-09","kind":"exercise","planned":false,"acquired":true,"shares":4560,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":27048,"source":{"system":"sec-edgar","filing":"0000950170-24-095124","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000095017024095124/ownership.xml","form_type":"4"}},{"id":1438017,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2024-08-08T14:10:01.000Z","date":"2024-08-07","kind":"grant","planned":false,"acquired":true,"shares":4882,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2025-08-07","expiration_date":"2025-09-07","underlying":"Common Units","underlying_shares":4882},"source":{"system":"sec-edgar","filing":"0000950170-24-093436","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000095017024093436/ownership.xml","form_type":"4"}},{"id":1810124,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2023-08-11T13:38:28.000Z","date":"2023-08-10","kind":"exercise","planned":false,"acquired":false,"shares":4177,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2023-08-10","expiration_date":"2023-09-10","underlying":"Common Units","underlying_shares":4177},"source":{"system":"sec-edgar","filing":"0001209191-23-045376","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000120919123045376/doc4.xml","form_type":"4"}},{"id":1810123,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2023-08-11T13:38:28.000Z","date":"2023-08-09","kind":"grant","planned":false,"acquired":true,"shares":4560,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":4560,"derivative":{"exercise_date":"2024-08-09","expiration_date":"2024-09-09","underlying":"Common Units","underlying_shares":4560},"source":{"system":"sec-edgar","filing":"0001209191-23-045376","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000120919123045376/doc4.xml","form_type":"4"}},{"id":1810122,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2023-08-11T13:38:28.000Z","date":"2023-08-10","kind":"exercise","planned":false,"acquired":true,"shares":4177,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":22488,"source":{"system":"sec-edgar","filing":"0001209191-23-045376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000120919123045376/doc4.xml","form_type":"4"}},{"id":2187185,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2022-08-12T18:27:17.000Z","date":"2022-08-11","kind":"exercise","acquired":false,"shares":3726,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2022-08-11","expiration_date":"2022-09-11","underlying":"Common Units","underlying_shares":3726},"source":{"system":"sec-edgar","filing":"0001567619-22-015777","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761922015777/doc1.xml","form_type":"4"}},{"id":2187184,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2022-08-12T18:27:17.000Z","date":"2022-08-10","kind":"grant","acquired":true,"shares":4177,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":4177,"derivative":{"exercise_date":"2023-08-10","expiration_date":"2023-09-10","underlying":"Common Units","underlying_shares":4177},"source":{"system":"sec-edgar","filing":"0001567619-22-015777","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761922015777/doc1.xml","form_type":"4"}},{"id":2187183,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2022-08-12T18:27:17.000Z","date":"2022-08-11","kind":"exercise","acquired":true,"shares":3726,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":18311,"source":{"system":"sec-edgar","filing":"0001567619-22-015777","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761922015777/doc1.xml","form_type":"4"}},{"id":2604034,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2021-08-13T18:25:04.000Z","date":"2021-08-12","kind":"exercise","acquired":false,"shares":4927,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2021-08-12","expiration_date":"2021-09-12","underlying":"Common Units","underlying_shares":4927},"source":{"system":"sec-edgar","filing":"0001567619-21-015458","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921015458/doc1.xml","form_type":"4"}},{"id":2604033,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2021-08-13T18:25:04.000Z","date":"2021-08-11","kind":"grant","acquired":true,"shares":3726,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":3726,"derivative":{"exercise_date":"2022-08-11","expiration_date":"2022-09-11","underlying":"Common Units","underlying_shares":3726},"source":{"system":"sec-edgar","filing":"0001567619-21-015458","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921015458/doc1.xml","form_type":"4"}},{"id":2604032,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2021-08-13T18:25:04.000Z","date":"2021-08-12","kind":"exercise","acquired":true,"shares":4927,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":14585,"source":{"system":"sec-edgar","filing":"0001567619-21-015458","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921015458/doc1.xml","form_type":"4"}},{"id":2702228,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-05-21T15:00:04.000Z","date":"2021-05-20","kind":"grant","acquired":true,"shares":34299,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":275484,"source":{"system":"sec-edgar","filing":"0000071829-21-000065","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182921000065/edgardoc.xml","form_type":"4"}},{"id":2712628,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2021-05-14T14:02:58.000Z","date":"2021-05-14","kind":"exercise","acquired":false,"shares":5658,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":0,"derivative":{"exercise_date":"2021-05-14","expiration_date":"2021-06-14","underlying":"Common Units","underlying_shares":5658},"source":{"system":"sec-edgar","filing":"0001567619-21-009983","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921009983/doc1.xml","form_type":"4"}},{"id":2712627,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2021-05-14T14:02:58.000Z","date":"2021-05-14","kind":"exercise","acquired":true,"shares":5658,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":9658,"source":{"system":"sec-edgar","filing":"0001567619-21-009983","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921009983/doc1.xml","form_type":"4"}},{"id":2803561,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2021-03-08T12:55:15.000Z","date":"2021-03-05","kind":"purchase","acquired":true,"shares":4000,"price":23.4681,"value":93872.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These common units were purchased in multiple transactions ranging from $23.10 to $23.79, inclusive. The reporting person undertakes to provide to Westlake Chemical Partners LP, any security holder of Westlake Chemical Partners LP or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of common units purchased at each separate price within the ranges set forth in this footnote."}],"balance_after":4000,"source":{"system":"sec-edgar","filing":"0001567619-21-005771","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761921005771/doc1.xml","form_type":"4"}},{"id":3058888,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2020-08-13T14:57:52.000Z","date":"2020-08-12","kind":"grant","acquired":true,"shares":4927,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of Issuer."}],"balance_after":4927,"derivative":{"exercise_date":"2021-08-12","expiration_date":"2021-09-12","underlying":"Common Units","underlying_shares":4927},"source":{"system":"sec-edgar","filing":"0001567619-20-015033","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761920015033/doc1.xml","form_type":"4"}},{"id":3138508,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-05-22T18:57:34.000Z","date":"2020-05-21","kind":"grant","acquired":true,"shares":30562,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":241185,"source":{"system":"sec-edgar","filing":"0000071829-20-000053","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182920000053/edgardoc.xml","form_type":"4"}},{"id":3147526,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2020-05-15T14:57:33.000Z","date":"2020-05-14","kind":"grant","acquired":true,"shares":5658,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Phantom Unit is the economic equivalent of one Common Unit of the Issuer."}],"balance_after":5658,"derivative":{"exercise_date":"2021-05-14","expiration_date":"2021-06-14","underlying":"Common Units","underlying_shares":5658},"source":{"system":"sec-edgar","filing":"0001567619-20-010313","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000156761920010313/doc1.xml","form_type":"4"}},{"id":3511281,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-28T15:49:45.000Z","date":"2019-05-23","kind":"grant","acquired":true,"shares":20435,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":210623,"source":{"system":"sec-edgar","filing":"0000071829-19-000063","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182919000063/edgardoc.xml","form_type":"4"}},{"id":3925149,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-21T16:15:59.000Z","date":"2018-05-17","kind":"grant","acquired":true,"shares":13953,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":190188,"source":{"system":"sec-edgar","filing":"0000071829-18-000082","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182918000082/edgardoc.xml","form_type":"4"}},{"id":3955121,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2018-04-27T14:32:54.000Z","date":"2018-04-26","kind":"disposition_to_issuer","acquired":false,"shares":37646,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the merger of the Issuer into a wholly-owned subsidiary of Archrock, Inc. (the \"Merger\"), effective April 26, 2018, each common unit of the Issuer held by the reporting person was converted into 1.40 shares of Archrock, Inc. common stock."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001367064-18-000012","document":"wf-form4_152483955997021.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706418000012/wf-form4_152483955997021.xml","form_type":"4"}},{"id":4141125,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-06T15:05:25.000Z","date":"2017-12-04","kind":"sale","acquired":false,"shares":2823,"price":9.0689,"value":25601.5047,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person undertakes to provide to issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.05 to $9.10, inclusive."}],"balance_after":176235,"source":{"system":"sec-edgar","filing":"0000071829-17-000148","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000148/edgardoc.xml","form_type":"4"}},{"id":4145533,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-04T18:55:32.000Z","date":"2017-12-01","kind":"sale","acquired":false,"shares":1300,"price":9.1173,"value":11852.49,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person undertakes to provide to issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.075 to $9.15, inclusive."}],"balance_after":179058,"source":{"system":"sec-edgar","filing":"0000071829-17-000146","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000146/edgardoc.xml","form_type":"4"}},{"id":4145532,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-04T18:55:32.000Z","date":"2017-11-30","kind":"sale","acquired":false,"shares":6000,"price":9.0668,"value":54400.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person undertakes to provide to issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.05 to $9.10, inclusive."}],"balance_after":180358,"source":{"system":"sec-edgar","filing":"0000071829-17-000146","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000146/edgardoc.xml","form_type":"4"}},{"id":4144477,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2017-12-04T15:32:06.000Z","date":"2017-12-01","kind":"exercise","acquired":false,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":0,"exercise_date":"2017-06-01","expiration_date":"2017-12-01","underlying":"Common Units","underlying_shares":1843},"source":{"system":"sec-edgar","filing":"0001367064-17-000066","document":"wf-form4_151240151183763.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000066/wf-form4_151240151183763.xml","form_type":"4"}},{"id":4144476,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2017-12-04T15:32:06.000Z","date":"2017-12-01","kind":"exercise","acquired":true,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction represents the vesting of one-third of the phantom units granted to the reporting person under the Archrock Partners, L.P. Long-Term Incentive Plan.  Each phantom unit vested in the form of a common unit.  Pursuant to applicable SEC reporting requirements, the settlement of the phantom units in exchange for common units is reported on this Form 4 as a disposition of the phantom units being settled and a simultaneous acquisition of the underlying common units."}],"balance_after":37646,"source":{"system":"sec-edgar","filing":"0001367064-17-000066","document":"wf-form4_151240151183763.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000066/wf-form4_151240151183763.xml","form_type":"4"}},{"id":4148588,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-30T17:01:03.000Z","date":"2017-11-29","kind":"sale","acquired":false,"shares":300,"price":8.8,"value":2640.0,"ownership":{"direct":true},"balance_after":186358,"source":{"system":"sec-edgar","filing":"0000071829-17-000142","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000142/edgardoc.xml","form_type":"4"}},{"id":4148587,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-30T17:01:03.000Z","date":"2017-11-29","kind":"sale","acquired":false,"shares":6000,"price":8.8572,"value":53143.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.85 to $8.90, inclusive."}],"balance_after":186658,"source":{"system":"sec-edgar","filing":"0000071829-17-000142","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000142/edgardoc.xml","form_type":"4"}},{"id":4148586,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-30T17:01:03.000Z","date":"2017-11-28","kind":"sale","acquired":false,"shares":5000,"price":8.718,"value":43590.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.70 to $8.75, inclusive."}],"balance_after":192658,"source":{"system":"sec-edgar","filing":"0000071829-17-000142","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000142/edgardoc.xml","form_type":"4"}},{"id":4150541,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-28T19:24:38.000Z","date":"2017-11-27","kind":"sale","acquired":false,"shares":1000,"price":8.8,"value":8800.0,"ownership":{"direct":true},"balance_after":197658,"source":{"system":"sec-edgar","filing":"0000071829-17-000140","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000140/edgardoc.xml","form_type":"4"}},{"id":4150540,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-28T19:24:38.000Z","date":"2017-11-27","kind":"sale","acquired":false,"shares":1000,"price":8.85,"value":8850.0,"ownership":{"direct":true},"balance_after":198658,"source":{"system":"sec-edgar","filing":"0000071829-17-000140","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000140/edgardoc.xml","form_type":"4"}},{"id":4213734,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2017-09-08T17:14:47.000Z","date":"2017-09-01","kind":"exercise","acquired":false,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":1843,"derivative":{"exercise_price":0,"exercise_date":"2017-06-01","expiration_date":"2017-12-01","underlying":"Common Units","underlying_shares":1843},"source":{"system":"sec-edgar","filing":"0001367064-17-000055","document":"wf-form4_150489087324976.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000055/wf-form4_150489087324976.xml","form_type":"4"}},{"id":4213733,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2017-09-08T17:14:47.000Z","date":"2017-09-01","kind":"exercise","acquired":true,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The late filing of this Form 4 is due to an administrative error."},{"field":"kind","element":"transactionCoding","label":"F2","text":"This transaction represents the vesting of one-third of the phantom units granted to the reporting person under the Archrock Partners, L.P. Long-Term Incentive Plan.  Each phantom unit vested in the form of a common unit.  Pursuant to applicable SEC reporting requirements, the settlement of the phantom units in exchange for common units is reported on this Form 4 as a disposition of the phantom units being settled and a simultaneous acquisition of the underlying common units."}],"balance_after":35803,"source":{"system":"sec-edgar","filing":"0001367064-17-000055","document":"wf-form4_150489087324976.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000055/wf-form4_150489087324976.xml","form_type":"4"}},{"id":4285831,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2017-06-12T16:08:53.000Z","date":"2017-06-01","kind":"exercise","acquired":false,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This transaction represents the vesting of one-third of the phantom units granted to the reporting person under the Archrock Partners, L.P. 2017 Long-Term Incentive Plan.  Each phantom unit vested in the form of a common unit.  Pursuant to applicable SEC reporting requirements, the settlement of the phantom units in exchange for common units is reported on this Form 4 as a disposition of the phantom units being settled and a simultaneous acquisition of the underlying common units."}],"balance_after":3686,"derivative":{"exercise_price":0,"exercise_date":"2017-06-01","expiration_date":"2017-12-01","underlying":"Common Units","underlying_shares":1843},"source":{"system":"sec-edgar","filing":"0001367064-17-000040","document":"wf-form4_149728371863223.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000040/wf-form4_149728371863223.xml","form_type":"4"}},{"id":4285830,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units","published_at":"2017-06-12T16:08:53.000Z","date":"2017-06-01","kind":"exercise","acquired":true,"shares":1843,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The late filing of this Form 4 is due to an inadvertent administrative error."},{"field":"kind","element":"transactionCoding","label":"F2","text":"This transaction represents the vesting of one-third of the phantom units granted to the reporting person under the Archrock Partners, L.P. 2017 Long-Term Incentive Plan.  Each phantom unit vested in the form of a common unit.  Pursuant to applicable SEC reporting requirements, the settlement of the phantom units in exchange for common units is reported on this Form 4 as a disposition of the phantom units being settled and a simultaneous acquisition of the underlying common units."}],"balance_after":33960,"source":{"system":"sec-edgar","filing":"0001367064-17-000040","document":"wf-form4_149728371863223.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000040/wf-form4_149728371863223.xml","form_type":"4"}},{"id":4312960,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-19T16:27:57.000Z","date":"2017-05-18","kind":"grant","acquired":true,"shares":19230,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":199658,"source":{"system":"sec-edgar","filing":"0001158643-17-000002","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000115864317000002/edgardoc.xml","form_type":"4"}},{"id":4342251,"issuer":{"id":167205,"kind":"organization","name":"Archrock Partners, L.P.","symbol":"APLP"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Phantom Units","published_at":"2017-04-28T17:17:39.000Z","date":"2017-04-26","kind":"grant","acquired":true,"shares":5529,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents a grant of phantom units with tandem Distribution Equivalent Rights (DERs) under the Archrock Partners, L.P. 2017 Long-Term Incentive Plan.  The grant is subject to one-third vesting on each of June 1, September 1 and December 1, 2017, and is payable in common units."}],"balance_after":5529,"derivative":{"exercise_price":0,"exercise_date":"2017-06-01","expiration_date":"2017-12-01","underlying":"Common Units","underlying_shares":5529},"source":{"system":"sec-edgar","filing":"0001367064-17-000025","document":"wf-form4_149339984451940.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000136706417000025/wf-form4_149339984451940.xml","form_type":"4"}},{"id":4431926,"issuer":{"id":178626,"kind":"organization","name":"Columbia Pipeline Partners LP","symbol":"CPPL"},"owners":[{"id":23777,"kind":"person","name":"FINLEY G STEPHEN","position":1,"cik":"0001158643","reported_name":"FINLEY G STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common units (limited partner interests)","published_at":"2017-02-22T21:04:48.000Z","date":"2017-02-17","kind":"disposition_to_issuer","acquired":false,"shares":25531,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the Agreement and Plan of Merger, dated as of November 1, 2016, by and among Columbia Pipeline Partners LP (the \"Issuer\"), CPP GP LLC, a Delaware limited liability company and the general partner of the Issuer, Columbia Pipeline Group, Inc., a Delaware corporation (\"CPG\"), and Pony Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of CPG, each common unit held by the reporting person was canceled and converted into the right to receive $17.10416 in cash, without interest, less any applicable withholding taxes."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-17-008544","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158643/000114036117008544/doc1.xml","form_type":"4"}}]}