{"transactions":[{"id":3990499,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Restricted Share Units","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"exercise","acquired":false,"shares":656,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 16, 2018, 20% vest on March 16, 2019, 30% vest on March 16, 2020, and the remaining 35% vest on March 16, 2021."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":3719,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":656},"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":3990498,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Restricted Share Units","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"exercise","acquired":false,"shares":1020,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 17, 2017, 20% vest on March 17, 2018, 30% vest on March 17, 2019, and the remaining 35% vest on March 17, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":3313,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1020},"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":3990497,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Restricted Share Units","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"exercise","acquired":false,"shares":1113,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 10, 2016, 20% vest on March 10, 2017, 30% vest on March 10, 2018, and the remaining 35% vest on March 10, 2019."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":1299,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1113},"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":3990496,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Restricted Share Units","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"exercise","acquired":false,"shares":1234,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 11, 2015, 20% vest on March 11, 2016, 30% vest on March 11, 2017, and the remaining 35% vest on March 11, 2018."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1234},"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":3990495,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Common Stock","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"tax_withholding","acquired":false,"shares":980,"price":24.97,"value":24470.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld for payment of tax liability."}],"balance_after":48278,"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":3990494,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Common Stock","published_at":"2018-03-19T23:36:55.000Z","date":"2018-03-19","kind":"exercise","acquired":true,"shares":4023,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares acquired on vesting of restricted share units."}],"balance_after":49258,"source":{"system":"sec-edgar","filing":"0001209191-18-020740","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118020740/doc4.xml","form_type":"4"}},{"id":4034813,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Common Stock","published_at":"2018-02-26T17:47:41.000Z","date":"2018-02-23","kind":"sale","acquired":false,"shares":10000,"price":24.5659,"value":245659.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $24.31 to $25.07. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected."}],"balance_after":45235,"source":{"system":"sec-edgar","filing":"0001209191-18-013256","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118013256/doc4.xml","form_type":"4"}},{"id":4102291,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":8750,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":7.66,"exercise_date":"2015-02-11","expiration_date":"2019-02-11","underlying":"Common Stock","underlying_shares":8750},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102290,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":7500,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":7.66,"exercise_date":"2014-02-11","expiration_date":"2019-02-11","underlying":"Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102289,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":7.66,"exercise_date":"2013-02-11","expiration_date":"2019-02-11","underlying":"Common Stock","underlying_shares":5000},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102288,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":3750,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":7.66,"exercise_date":"2012-02-11","expiration_date":"2019-02-11","underlying":"Common Stock","underlying_shares":3750},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102287,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":8000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":3.58,"exercise_date":"2014-02-11","expiration_date":"2018-02-11","underlying":"Common Stock","underlying_shares":8000},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102286,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":6000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":3.58,"exercise_date":"2013-02-11","expiration_date":"2018-02-11","underlying":"Common Stock","underlying_shares":6000},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102285,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":4000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":3.58,"exercise_date":"2012-02-11","expiration_date":"2018-02-11","underlying":"Common Stock","underlying_shares":4000},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102284,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":false,"shares":2000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":3.58,"exercise_date":"2011-02-11","expiration_date":"2018-02-11","underlying":"Common Stock","underlying_shares":2000},"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102283,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Common Stock","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":true,"shares":25000,"price":7.66,"value":191500.0,"ownership":{"direct":true},"balance_after":55235,"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4102282,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Information Officer"}}],"security":"Common Stock","published_at":"2018-01-10T22:34:11.000Z","date":"2018-01-10","kind":"exercise","acquired":true,"shares":20000,"price":3.58,"value":71600.0,"ownership":{"direct":true},"balance_after":30235,"source":{"system":"sec-edgar","filing":"0001209191-18-003140","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919118003140/doc4.xml","form_type":"4"}},{"id":4376764,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Restricted Share Units","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"exercise","acquired":false,"shares":765,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 17, 2017, 20% vest on March 17, 2018, 30% vest on March 17, 2019, and the remaining 35% vest on March 17, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":4333,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":765},"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4376763,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Restricted Share Units","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"exercise","acquired":false,"shares":742,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 10, 2016, 20% vest on March 10, 2017, 30% vest on March 10, 2018, and the remaining 35% vest on March 10, 2019."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":2412,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":742},"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4376762,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Restricted Share Units","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"exercise","acquired":false,"shares":1057,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 11, 2015, 20% vest on March 11, 2016, 30% vest on March 11, 2017, and the remaining 35% vest on March 11, 2018."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":1234,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1057},"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4376761,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Restricted Share Units","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"exercise","acquired":false,"shares":1750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 18, 2014, 20% vest on March 18, 2015, 30% vest on March 18, 2016, and the remaining 35% vest on March 18, 2017."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Not applicable."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1750},"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4376760,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"tax_withholding","acquired":false,"shares":1332,"price":23.9,"value":31834.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld for payment of tax liability."}],"balance_after":10235,"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4376759,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2017-03-21T12:18:22.000Z","date":"2017-03-20","kind":"exercise","acquired":true,"shares":4314,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares acquired on vesting of restricted share units."}],"balance_after":11567,"source":{"system":"sec-edgar","filing":"0001209191-17-021898","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021898/doc4.xml","form_type":"4"}},{"id":4380705,"issuer":{"id":5059,"kind":"organization","name":"HEALTHSTREAM INC","symbol":"HSTM"},"owners":[{"id":168212,"kind":"person","name":"Doster Jeffrey","position":1,"cik":"0001435609","reported_name":"Doster Jeffrey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Restricted Share Units","published_at":"2017-03-17T12:11:27.000Z","date":"2017-03-16","kind":"grant","acquired":true,"shares":4375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted share unit (RSU) represents the contingent right to receive one share of common stock upon vesting of the unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSU's are subject to a four year vesting schedule, contingent upon continued service at the time of vesting. 15% vest on March 16, 2018, 20% vest on March 16, 2019, 30% vest on March 16, 2020, and the remaining 35% vest on March 16, 2021."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Not applicable."}],"balance_after":4375,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":4375},"source":{"system":"sec-edgar","filing":"0001209191-17-021248","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1095565/000120919117021248/doc4.xml","form_type":"4"}}]}