{"transactions":[{"id":1870442,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Stock Option (Right to Buy)","published_at":"2023-06-02T20:00:56.000Z","date":"2023-06-01","kind":"grant","planned":false,"acquired":true,"shares":67537,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options vest as to one-third of the shares on March 8, 2024, an additional one-third of the shares on March 8, 2025 and the remaining one-third of the shares on March 8, 2026."}],"balance_after":67537,"derivative":{"exercise_price":6.81,"expiration_date":"2033-06-01","underlying":"Common Stock","underlying_shares":67537},"source":{"system":"sec-edgar","filing":"0001209191-23-033648","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919123033648/doc4.xml","form_type":"4"}},{"id":1870441,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2023-06-02T20:00:56.000Z","date":"2023-06-01","kind":"grant","planned":false,"acquired":true,"shares":14684,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of Common Stock upon vesting. The RSUs vest as to one-third of the shares on March 8, 2024, an additional one-third of the shares on March 8, 2025 and the remaining one-third of the shares on March 8, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 56,424 shares of Common Stock, 18,169 RSUs and 53,590 shares of Restricted Stock."}],"balance_after":128183,"source":{"system":"sec-edgar","filing":"0001209191-23-033648","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919123033648/doc4.xml","form_type":"4"}},{"id":1987623,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2023-02-28T22:11:47.000Z","date":"2023-02-26","kind":"tax_withholding","acquired":false,"shares":901,"price":10.95,"value":9865.95,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 56,424 shares of Common Stock, 3,485 RSUs and 53,590 shares of Restricted Stock."}],"balance_after":113499,"source":{"system":"sec-edgar","filing":"0001209191-23-013766","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919123013766/doc4.xml","form_type":"4"}},{"id":1987622,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2023-02-28T22:11:47.000Z","date":"2023-02-24","kind":"tax_withholding","acquired":false,"shares":329,"price":10.95,"value":3602.55,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units (\"RSUs\")."}],"balance_after":114400,"source":{"system":"sec-edgar","filing":"0001209191-23-013766","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919123013766/doc4.xml","form_type":"4"}},{"id":1990832,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2023-02-27T23:10:32.000Z","date":"2023-02-23","kind":"tax_withholding","acquired":false,"shares":440,"price":11.32,"value":4980.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 54,107 shares of Common Stock, 7,032 RSUs and 53,590 shares of Restricted Stock."}],"balance_after":114729,"source":{"system":"sec-edgar","filing":"0001209191-23-013356","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919123013356/doc4.xml","form_type":"4"}},{"id":2242728,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2022-06-06T23:21:26.000Z","date":"2022-06-02","kind":"grant","acquired":true,"shares":53590,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person was granted restricted shares of common stock (the \"Award\") pursuant to a Performance-Based Restricted Stock\nAgreement by and between Aspen Aerogels, Inc. and the reporting person subject to the 2014 Employee, Director and Consultant Equity\nIncentive Plan. In order for a tranche of this Award to vest, both time and performance vesting conditions must be satisfied. For the time vesting\ncondition, a tranche will vest at the later of (i) three years from the grant date or (ii) one year from the date when an applicable performance\nhurdle is achieved, subject to a maximum five-year vesting period for shares with respect to which the performance hurdle has been achieved.\nWith respect to the performance vesting condition, there are three tranches with different share price hurdles and a five-year total performance\nperiod. If a share price hurdle is not met after five years, the applicable tranche is forfeited."},{"field":"shares","element":"transactionShares","label":"F2","text":"(cont.) The share price hurdle is met by reference to a 30-day volume weighted average price (VWAP) that is maintained for 60 days (the \"Share Price Hurdle\"). The first tranche consists of 34% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $43.33.The second tranche consists of 33% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $64.99. The third tranche consists of 33% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $86.65."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reporting person was granted restricted shares of common stock (the \"Award\") pursuant to a Performance-Based Restricted Stock\nAgreement by and between Aspen Aerogels, Inc. and the reporting person subject to the 2014 Employee, Director and Consultant Equity\nIncentive Plan. In order for a tranche of this Award to vest, both time and performance vesting conditions must be satisfied. For the time vesting\ncondition, a tranche will vest at the later of (i) three years from the grant date or (ii) one year from the date when an applicable performance\nhurdle is achieved, subject to a maximum five-year vesting period for shares with respect to which the performance hurdle has been achieved.\nWith respect to the performance vesting condition, there are three tranches with different share price hurdles and a five-year total performance\nperiod. If a share price hurdle is not met after five years, the applicable tranche is forfeited."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(cont.) The share price hurdle is met by reference to a 30-day volume weighted average price (VWAP) that is maintained for 60 days (the \"Share Price Hurdle\"). The first tranche consists of 34% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $43.33.The second tranche consists of 33% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $64.99. The third tranche consists of 33% of the restricted shares of common stock granted under the Award, with the Share Price Hurdle equal to $86.65."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 53,279 shares of Common Stock, 8,300 Restricted Stock Units and 53,590 shares of Restricted Stock."}],"balance_after":115169,"source":{"system":"sec-edgar","filing":"0001209191-22-034708","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122034708/doc4.xml","form_type":"4"}},{"id":2365994,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2022-03-02T01:00:37.000Z","date":"2022-02-27","kind":"tax_withholding","acquired":false,"shares":3091,"price":29.51,"value":91215.41,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of RSUs."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Represents 53,279 shares of common stock and 8,300 RSUs."}],"balance_after":61579,"source":{"system":"sec-edgar","filing":"0001209191-22-014406","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122014406/doc4.xml","form_type":"4"}},{"id":2365993,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Vice President, HR"}}],"security":"Common Stock","published_at":"2022-03-02T01:00:37.000Z","date":"2022-02-26","kind":"tax_withholding","acquired":false,"shares":900,"price":29.51,"value":26559.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 45,810 shares of common stock and 18,860 RSUs."}],"balance_after":64670,"source":{"system":"sec-edgar","filing":"0001209191-22-014406","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122014406/doc4.xml","form_type":"4"}},{"id":2372570,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Option (Right to Buy)","published_at":"2022-02-26T00:06:03.000Z","date":"2022-02-23","kind":"grant","acquired":true,"shares":19918,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options vest as to one-third of the shares on February 23, 2023, and additional one-third of the shares on February 23, 2024 and the remaining one-third of the shares on February 23, 2025."}],"balance_after":19918,"derivative":{"exercise_price":26.29,"expiration_date":"2032-02-23","underlying":"Common Stock","underlying_shares":19918},"source":{"system":"sec-edgar","filing":"0001209191-22-013355","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122013355/doc4.xml","form_type":"4"}},{"id":2372569,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2022-02-26T00:06:03.000Z","date":"2022-02-24","kind":"tax_withholding","acquired":false,"shares":330,"price":29,"value":9570.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Represents 44,113 shares of Common Stock and 21,457 RSUs."}],"balance_after":65570,"source":{"system":"sec-edgar","filing":"0001209191-22-013355","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122013355/doc4.xml","form_type":"4"}},{"id":2372568,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2022-02-26T00:06:03.000Z","date":"2022-02-23","kind":"grant","acquired":true,"shares":3803,"price":26.29,"value":99980.87,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of Common Stock upon vesting.  The RSUs vest as to one-third of the shares on February 23, 2023, an additional one-third of the shares on February 23, 2024 and the remaining one-third of the shares on February 23, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 43,493 shares of Common Stock and 22,407 RSUs."}],"balance_after":65900,"source":{"system":"sec-edgar","filing":"0001209191-22-013355","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919122013355/doc4.xml","form_type":"4"}},{"id":2490945,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Option (Right-to-Buy)","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"exercise","acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"These options are fully vested and exercisable."}],"balance_after":4609,"derivative":{"exercise_price":5.82,"expiration_date":"2025-11-11","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2490944,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"sale","acquired":false,"shares":2358,"price":58.09,"value":136976.22,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reflected is the weighted-average sale price for shares sold. The shares were sold in multiple transactions and the range of sale prices for the\ntransactions reported was $57.50 to $58.49 per share. The Reporting Person undertakes to provide to the 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F9","text":"Represents 43,493 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":62097,"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2490943,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"sale","acquired":false,"shares":4503,"price":57.04,"value":256851.12,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reflected is the weighted-average sale price for shares sold. The shares were sold in multiple transactions and the range of sale prices for the\ntransactions reported was $56.48 to $57.48 per share. The Reporting Person undertakes to provide to the 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Represents 45,851 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":64455,"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2490942,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"sale","acquired":false,"shares":5126,"price":55.83,"value":286184.58,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reflected is the weighted-average sale price for shares sold. The shares were sold in multiple transactions and the range of sale prices for the\ntransactions reported was $55.40 to $56.29 per share. The Reporting Person undertakes to provide to the 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Represents 50,354 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":68958,"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2490941,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"sale","acquired":false,"shares":8013,"price":54.95,"value":440314.35,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reflected is the weighted-average sale price for shares sold. The shares were sold in multiple transactions and the range of sale prices for the transactions reported was $54.34 to $55.34 per share. The Reporting Person undertakes to provide to the 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 55,480 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":74084,"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2490940,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-12-01T21:36:13.000Z","date":"2021-11-30","kind":"exercise","acquired":true,"shares":20000,"price":5.82,"value":116400.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents 63,493 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":82097,"source":{"system":"sec-edgar","filing":"0001209191-21-067275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121067275/doc4.xml","form_type":"4"}},{"id":2588645,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Option (Right to Buy)","published_at":"2021-08-27T20:22:16.000Z","date":"2021-08-25","kind":"exercise","acquired":false,"shares":36717,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The option is fully vested and exercisable."}],"balance_after":0,"derivative":{"exercise_price":3.99,"expiration_date":"2026-03-01","underlying":"Common Stock","underlying_shares":36717},"source":{"system":"sec-edgar","filing":"0001209191-21-053620","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121053620/doc4.xml","form_type":"4"}},{"id":2588644,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-08-27T20:22:16.000Z","date":"2021-08-25","kind":"sale","acquired":false,"shares":2137,"price":43.55,"value":93066.35,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Average price with actual price ranging from $43.35 and $43.76. The reporting person will provide to the staff of the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate pric"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Represents 43,493 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":62097,"source":{"system":"sec-edgar","filing":"0001209191-21-053620","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121053620/doc4.xml","form_type":"4"}},{"id":2588643,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-08-27T20:22:16.000Z","date":"2021-08-25","kind":"sale","acquired":false,"shares":34580,"price":42.7,"value":1476566.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Average price with actual price ranging from $42.34 and $43.76.  The reporting person will provide to the staff of the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 45,630 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":64234,"source":{"system":"sec-edgar","filing":"0001209191-21-053620","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121053620/doc4.xml","form_type":"4"}},{"id":2588642,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-08-27T20:22:16.000Z","date":"2021-08-25","kind":"exercise","acquired":true,"shares":36717,"price":3.99,"value":146500.83,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents 80,210 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":98814,"source":{"system":"sec-edgar","filing":"0001209191-21-053620","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121053620/doc4.xml","form_type":"4"}},{"id":2821181,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-03-02T21:32:02.000Z","date":"2021-03-01","kind":"sale","acquired":false,"shares":2500,"price":24,"value":60000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Represents 43,493 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":62097,"source":{"system":"sec-edgar","filing":"0001209191-21-015993","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121015993/doc4.xml","form_type":"4"}},{"id":2821180,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-03-02T21:32:02.000Z","date":"2021-02-28","kind":"tax_withholding","acquired":false,"shares":2127,"price":22.25,"value":47325.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Represents 45,993 shares of Common Stock and 18,604 Restricted Stock Units."}],"balance_after":64597,"source":{"system":"sec-edgar","filing":"0001209191-21-015993","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121015993/doc4.xml","form_type":"4"}},{"id":2821179,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-03-02T21:32:02.000Z","date":"2021-02-27","kind":"tax_withholding","acquired":false,"shares":3195,"price":22.25,"value":71088.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 40,873 shares of Common Stock and 25,851 Restricted Stock Units."}],"balance_after":66724,"source":{"system":"sec-edgar","filing":"0001209191-21-015993","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121015993/doc4.xml","form_type":"4"}},{"id":2821178,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-03-02T21:32:02.000Z","date":"2021-02-26","kind":"tax_withholding","acquired":false,"shares":901,"price":22.25,"value":20047.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units (\"RSUs\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 33,508 shares of Common Stock and 36,411 Restricted Stock Units."}],"balance_after":69919,"source":{"system":"sec-edgar","filing":"0001209191-21-015993","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121015993/doc4.xml","form_type":"4"}},{"id":2830136,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Option (Right to Buy)","published_at":"2021-02-26T22:14:34.000Z","date":"2021-02-24","kind":"grant","acquired":true,"shares":15671,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options vest as to one-third of the shares on February 24, 2022, and additional one-third of the shares on February 24, 2023 and the remaining one-third of the shares on February 24, 2024."}],"balance_after":15671,"derivative":{"exercise_price":24.13,"expiration_date":"2031-02-24","underlying":"Common Stock","underlying_shares":15671},"source":{"system":"sec-edgar","filing":"0001209191-21-014862","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121014862/doc4.xml","form_type":"4"}},{"id":2830135,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2021-02-26T22:14:34.000Z","date":"2021-02-24","kind":"grant","acquired":true,"shares":2849,"price":24.13,"value":68746.37,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of Common Stock upon vesting.  The RSUs vest as to one-third of the shares on February 24, 2022, an additional one-third of the shares on February 24, 2023 and the remaining one-third of the shares on February 24, 2024."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 31,811 shares of Common Stock and 39,009 Restricted Stock Units."}],"balance_after":70820,"source":{"system":"sec-edgar","filing":"0001209191-21-014862","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919121014862/doc4.xml","form_type":"4"}},{"id":2942942,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Option (Right to Buy)","published_at":"2020-12-16T22:47:38.000Z","date":"2020-12-15","kind":"grant","acquired":true,"shares":5469,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options vest as to one-third of the shares on December 15, 2021, an additional one-third of the shares on December 15, 2022 and the remaining one-third of the shares on December 15, 2023."}],"balance_after":5469,"derivative":{"exercise_price":16.05,"expiration_date":"2030-12-15","underlying":"Common Stock","underlying_shares":5469},"source":{"system":"sec-edgar","filing":"0001209191-20-063854","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919120063854/doc4.xml","form_type":"4"}},{"id":3238627,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2020-03-02T21:27:57.000Z","date":"2020-02-28","kind":"tax_withholding","acquired":false,"shares":4466,"price":7.95,"value":35504.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units (\"RSU\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 31,811 shares of Common Stock and 36,160 RSUs."}],"balance_after":67971,"source":{"system":"sec-edgar","filing":"0001209191-20-014461","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919120014461/doc4.xml","form_type":"4"}},{"id":3238626,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2020-03-02T21:27:57.000Z","date":"2020-02-27","kind":"tax_withholding","acquired":false,"shares":3660,"price":7.92,"value":28987.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units (\"RSU\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 20,979 shares of Common Stock and 51,458 RSUs."}],"balance_after":72437,"source":{"system":"sec-edgar","filing":"0001209191-20-014461","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919120014461/doc4.xml","form_type":"4"}},{"id":3241549,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Options (Right to Buy)","published_at":"2020-02-28T21:58:51.000Z","date":"2020-02-26","kind":"grant","acquired":true,"shares":47899,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options vest as to one-third of the shares on February 26, 2021, an additional one-third of the shares on February 26, 2022 and the remaining one-third of the shares on February 26, 2023."}],"balance_after":47899,"derivative":{"exercise_price":8.02,"expiration_date":"2030-02-26","underlying":"Common Stock","underlying_shares":47899},"source":{"system":"sec-edgar","filing":"0001209191-20-013965","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919120013965/doc4.xml","form_type":"4"}},{"id":3241548,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2020-02-28T21:58:51.000Z","date":"2020-02-26","kind":"grant","acquired":true,"shares":7793,"price":8.02,"value":62499.86,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock upon vesting.  The RSUs vest as to one-third of the shares on February 26, 2021, an additional one-third of the shares on February 26, 2022 and the remaining one-third of the shares on February 26, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 14,079 shares of Common Stock and 62,018 shares of Restricted Stock Units."}],"balance_after":76097,"source":{"system":"sec-edgar","filing":"0001209191-20-013965","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919120013965/doc4.xml","form_type":"4"}},{"id":3357823,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-11-27T21:17:55.000Z","date":"2019-11-27","kind":"sale","acquired":false,"shares":185,"price":7,"value":1295.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 14,079 shares of Common Stock and 54,225 Restricted Stock Units."}],"balance_after":68304,"source":{"system":"sec-edgar","filing":"0001209191-19-058340","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119058340/doc4.xml","form_type":"4"}},{"id":3357822,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-11-27T21:17:55.000Z","date":"2019-11-26","kind":"sale","acquired":false,"shares":4886,"price":7.01,"value":34250.86,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Average price with actual price ranging from $7.00 and $7.05."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 14,264 shares of Common Stock and 54,225 Restricted Stock Units."}],"balance_after":68489,"source":{"system":"sec-edgar","filing":"0001209191-19-058340","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119058340/doc4.xml","form_type":"4"}},{"id":3438936,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-08-14T20:45:58.000Z","date":"2019-08-13","kind":"sale","acquired":false,"shares":14947,"price":6.6,"value":98650.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Average price with actual price ranging from $6.50 and $6.60."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 19,150 shares of common stock and 54,225 shares of Restricted Stock Units."}],"balance_after":73375,"source":{"system":"sec-edgar","filing":"0001209191-19-045938","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119045938/doc4.xml","form_type":"4"}},{"id":3438935,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-08-14T20:45:58.000Z","date":"2019-08-12","kind":"sale","acquired":false,"shares":1053,"price":6.68,"value":7034.04,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents 34,097 shares of common stock and 54,225 Restricted Stock Units."}],"balance_after":88322,"source":{"system":"sec-edgar","filing":"0001209191-19-045938","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119045938/doc4.xml","form_type":"4"}},{"id":3619668,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-03-04T21:19:56.000Z","date":"2019-03-01","kind":"tax_withholding","acquired":false,"shares":2175,"price":3.52,"value":7656.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based Restricted Stock Units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Represents 35,150 shares of Common Stock and 54,225 Restricted Stock Units."}],"balance_after":89375,"source":{"system":"sec-edgar","filing":"0001209191-19-015588","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119015588/doc4.xml","form_type":"4"}},{"id":3619667,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-03-04T21:19:56.000Z","date":"2019-02-28","kind":"tax_withholding","acquired":false,"shares":5309,"price":3.46,"value":18369.14,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based Restricted Stock Units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 31,059 of Common Stock and 60,491 Restricted Stock Units."}],"balance_after":91550,"source":{"system":"sec-edgar","filing":"0001209191-19-015588","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119015588/doc4.xml","form_type":"4"}},{"id":3623519,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Options (Right to Buy)","published_at":"2019-03-02T00:46:08.000Z","date":"2019-02-27","kind":"grant","acquired":true,"shares":63773,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options vest as to one-third of the shares on February 27, 2020, an additional one-third of the shares on February 27, 2021 and the remaining one-third of the shares on February 27, 2022."}],"balance_after":63773,"derivative":{"exercise_price":3.63,"expiration_date":"2029-02-27","underlying":"Common Stock","underlying_shares":63773},"source":{"system":"sec-edgar","filing":"0001209191-19-015233","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119015233/doc4.xml","form_type":"4"}},{"id":3623518,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2019-03-02T00:46:08.000Z","date":"2019-02-27","kind":"grant","acquired":true,"shares":31680,"price":3.63,"value":114998.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each restricted stock unit (\"RSU\") represents the right to receive one share of common stock upon vesting.  The RSUs vest as to one-third of the shares on February 27, 2020, an additional one-third of the shares on February 27, 2021 and the remaining one-third of the shares on February 27, 2022."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 21,071 shares of Common Stock and 75,788 Restricted Stock Units."}],"balance_after":96859,"source":{"system":"sec-edgar","filing":"0001209191-19-015233","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919119015233/doc4.xml","form_type":"4"}},{"id":3767802,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2018-11-13T14:19:06.000Z","date":"2018-11-11","kind":"tax_withholding","acquired":false,"shares":1266,"price":4.02,"value":5089.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units(\"RSUs\")"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 21,071 shares of Common Stock and 44,108 RSUs."}],"balance_after":65179,"source":{"system":"sec-edgar","filing":"0001209191-18-058087","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919118058087/doc4.xml","form_type":"4"}},{"id":4020505,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Options (Right to Buy)","published_at":"2018-03-02T23:29:56.000Z","date":"2018-02-28","kind":"grant","acquired":true,"shares":44881,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The options vest as to one-third of the shares on February 28, 2019, an additional one-third of the shares on February 28, 2020, and the remaining one-third of the shares on February 28, 2021."}],"balance_after":44881,"derivative":{"exercise_price":4.6,"expiration_date":"2028-02-28","underlying":"Common Stock","underlying_shares":44881},"source":{"system":"sec-edgar","filing":"0001209191-18-015983","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919118015983/doc4.xml","form_type":"4"}},{"id":4020504,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2018-03-02T23:29:56.000Z","date":"2018-03-01","kind":"tax_withholding","acquired":false,"shares":2178,"price":4.57,"value":9953.46,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Represents 18,041 shares of common stock and 48,404 restricted stock units."}],"balance_after":66445,"source":{"system":"sec-edgar","filing":"0001209191-18-015983","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919118015983/doc4.xml","form_type":"4"}},{"id":4020503,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2018-03-02T23:29:56.000Z","date":"2018-02-28","kind":"tax_withholding","acquired":false,"shares":2798,"price":4.6,"value":12870.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Represents 13,954 shares of common stock and 54,669 restricted stock units."}],"balance_after":68623,"source":{"system":"sec-edgar","filing":"0001209191-18-015983","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919118015983/doc4.xml","form_type":"4"}},{"id":4020502,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2018-03-02T23:29:56.000Z","date":"2018-02-28","kind":"grant","acquired":true,"shares":21739,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each restricted stock unit (\"RSU\") represents the right to receive one share of common stock upon vesting. The RSUs vest as to one-third of the shares on February 28, 2019, an additional one-third of the shares on February 28, 2020, and the remaining one-third of the shares on February 28, 2021."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 8,701 shares of common stock and 62,720 restricted stock units."}],"balance_after":71421,"source":{"system":"sec-edgar","filing":"0001209191-18-015983","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919118015983/doc4.xml","form_type":"4"}},{"id":4165882,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2017-11-13T21:57:31.000Z","date":"2017-11-11","kind":"tax_withholding","acquired":false,"shares":1394,"price":4.87,"value":6788.78,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units(\"RSUs\")"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 8,701 shares of Common Stock and 40,981 RSUs"}],"balance_after":49682,"source":{"system":"sec-edgar","filing":"0001209191-17-060341","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117060341/doc4.xml","form_type":"4"}},{"id":4395269,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2017-03-08T22:12:46.000Z","date":"2017-03-07","kind":"sale","acquired":false,"shares":1000,"price":4.062,"value":4062.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents 5,800 shares of Common Stock and 45,276 restricted stock units."}],"balance_after":51076,"source":{"system":"sec-edgar","filing":"0001209191-17-019321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117019321/doc4.xml","form_type":"4"}},{"id":4395260,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Options (right to buy)","published_at":"2017-03-08T22:07:18.000Z","date":"2017-02-28","kind":"grant","acquired":true,"shares":47492,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options vest as to one-third of the shares on February 28, 2018, an additional one-third of the shares on February 28, 2019, and the remaining one-third of the shares on February 28, 2020."}],"balance_after":47492,"derivative":{"exercise_price":4.14,"expiration_date":"2027-02-28","underlying":"Common Stock","underlying_shares":47492},"source":{"system":"sec-edgar","filing":"0001209191-17-019310","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117019310/doc4a.xml","form_type":"4/A","original_submission_date":"2017-03-02"}},{"id":4395259,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2017-03-08T22:07:18.000Z","date":"2017-03-01","kind":"tax_withholding","acquired":false,"shares":2366,"price":4.18,"value":9889.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Represents 6,800 shares of Common Stock and 45,276 RSUs"}],"balance_after":52076,"source":{"system":"sec-edgar","filing":"0001209191-17-019310","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117019310/doc4a.xml","form_type":"4/A","original_submission_date":"2017-03-02"}},{"id":4395258,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2017-03-08T22:07:18.000Z","date":"2017-02-28","kind":"grant","acquired":true,"shares":24154,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each restricted stock unit (\"RSU\") represents the right to receive one share of common stock upon vesting. The RSUs vest as to one-third of the shares on\nFebruary 28, 2018, an additional one-third of the shares on February 28, 2019, and the remaining one-third of the shares on February 28, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 2,901 shares of Common Stock and 51,541 RSUs"}],"balance_after":54442,"source":{"system":"sec-edgar","filing":"0001209191-17-019310","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117019310/doc4a.xml","form_type":"4/A","original_submission_date":"2017-03-02"}},{"id":4410079,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Stock Options (right to buy)","published_at":"2017-03-03T00:37:09.000Z","date":"2017-02-28","kind":"grant","acquired":true,"shares":47492,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options vest as to one-third of the shares on February 28, 2018, an additional one-third of the shares on February 28, 2019, and the remaining one-third of the shares on February 28, 2020."}],"balance_after":47492,"derivative":{"exercise_price":4.14,"expiration_date":"2027-02-28","underlying":"Common Stock","underlying_shares":47492},"source":{"system":"sec-edgar","filing":"0001209191-17-016983","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117016983/doc4.xml","form_type":"4"}},{"id":4410078,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2017-03-03T00:37:09.000Z","date":"2017-02-28","kind":"grant","acquired":true,"shares":24154,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each restricted stock unit (\"RSU\") represents the right to receive one share of common stock upon vesting. The RSUs vest as to one-third of the shares on\nFebruary 28, 2018, an additional one-third of the shares on February 28, 2019, and the remaining one-third of the shares on February 28, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 2,901 shares of Common Stock and 51,541 RSUs"}],"balance_after":54442,"source":{"system":"sec-edgar","filing":"0001209191-17-016983","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919117016983/doc4.xml","form_type":"4"}},{"id":4558132,"issuer":{"id":5645,"kind":"organization","name":"ASPEN AEROGELS INC","symbol":"ASPN"},"owners":[{"id":112845,"kind":"person","name":"Conte Kelley","position":1,"cik":"0001668364","reported_name":"Conte Kelley","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President,Human Resources"}}],"security":"Common Stock","published_at":"2016-11-14T21:26:08.000Z","date":"2016-11-11","kind":"tax_withholding","acquired":false,"shares":1394,"price":3.94,"value":5492.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of time-based restricted stock units(\"RSUs\")"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents 2,901 shares of Common Stock and 27,387 RSUs"}],"balance_after":30288,"source":{"system":"sec-edgar","filing":"0001209191-16-149727","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1145986/000120919116149727/doc4.xml","form_type":"4"}}]}