{"transactions":[{"id":3013498,"issuer":{"id":5333,"kind":"organization","name":"Hyliion Holdings Corp.","symbol":"HYLN"},"owners":[{"id":146166,"kind":"organization","name":"Tortoise Sponsor LLC","position":1,"cik":"0001768532","reported_name":"Tortoise Sponsor LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135926,"kind":"organization","name":"TortoiseEcofin Borrower LLC","position":2,"cik":"0001735321","reported_name":"TortoiseEcofin Borrower LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135927,"kind":"organization","name":"TortoiseEcofin Investments, LLC","position":3,"cik":"0001730884","reported_name":"TortoiseEcofin Investments, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2020-10-05T18:03:03.000Z","date":"2020-10-01","kind":"exercise","acquired":false,"shares":4439605,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In connection with the closing of the business combination between Tortoise Acquisition Corp. (\"TortoiseCorp\"), SHLL Merger Sub and Hyliion Inc. on October 1, 2020, the Reporting Person's shares of Class B Common Stock automatically converted into shares of TortoiseCorp's Class A Common Stock on a one-for-one basis. Upon consummation of the business combination, TortoiseCorp changed its name to \"Hyliion Holdings Corp.\" and all outstanding shares of Class A Common Stock were automatically reclassified, redesignated and changed into one share of Hyliion Holdings Corp. Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with the closing of the business combination between Tortoise Acquisition Corp. (\"TortoiseCorp\"), SHLL Merger Sub and Hyliion Inc. on October 1, 2020, the Reporting Person's shares of Class B Common Stock automatically converted into shares of TortoiseCorp's Class A Common Stock on a one-for-one basis. Upon consummation of the business combination, TortoiseCorp changed its name to \"Hyliion Holdings Corp.\" and all outstanding shares of Class A Common Stock were automatically reclassified, redesignated and changed into one share of Hyliion Holdings Corp. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The shares of Class B Common Stock are automatically convertible into shares of Class A Common Stock at the time of TortoiseCorp's initial business combination on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The shares of Class B Common Stock are automatically convertible into shares of Class A Common Stock at the time of TortoiseCorp's initial business combination on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Tortoise Sponsor LLC is the record holder of the shares reported herein. TortoiseEcofin Borrower LLC is the managing member of Tortoise Sponsor LLC. TortoiseEcofin Parent Holdco LLC is the sole member of TortoiseEcofin Borrower LLC, and TortoiseEcofin Investments, LLC is the sole member of TortoiseEcofin Parent Holdco LLC. Accordingly, TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC may be deemed to have or share beneficial ownership of the shares of Class B Common Stock held directly by Tortoise Sponsor LLC. The address of each of TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC is 5100 W. 115th Place, Leawood, Kansas 66211."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":4439605},"source":{"system":"sec-edgar","filing":"0001213900-20-030169","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1735321/000121390020030169/ownership.xml","form_type":"4"}},{"id":3013497,"issuer":{"id":5333,"kind":"organization","name":"Hyliion Holdings Corp.","symbol":"HYLN"},"owners":[{"id":146166,"kind":"organization","name":"Tortoise Sponsor LLC","position":1,"cik":"0001768532","reported_name":"Tortoise Sponsor LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135926,"kind":"organization","name":"TortoiseEcofin Borrower LLC","position":2,"cik":"0001735321","reported_name":"TortoiseEcofin Borrower LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135927,"kind":"organization","name":"TortoiseEcofin Investments, LLC","position":3,"cik":"0001730884","reported_name":"TortoiseEcofin Investments, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-10-05T18:03:03.000Z","date":"2020-10-01","kind":"exercise","acquired":true,"shares":4439605,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with the closing of the business combination between Tortoise Acquisition Corp. (\"TortoiseCorp\"), SHLL Merger Sub and Hyliion Inc. on October 1, 2020, the Reporting Person's shares of Class B Common Stock automatically converted into shares of TortoiseCorp's Class A Common Stock on a one-for-one basis. Upon consummation of the business combination, TortoiseCorp changed its name to \"Hyliion Holdings Corp.\" and all outstanding shares of Class A Common Stock were automatically reclassified, redesignated and changed into one share of Hyliion Holdings Corp. Common Stock."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Tortoise Sponsor LLC is the record holder of the shares reported herein. TortoiseEcofin Borrower LLC is the managing member of Tortoise Sponsor LLC. TortoiseEcofin Parent Holdco LLC is the sole member of TortoiseEcofin Borrower LLC, and TortoiseEcofin Investments, LLC is the sole member of TortoiseEcofin Parent Holdco LLC. Accordingly, TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC may be deemed to have or share beneficial ownership of the shares of Class B Common Stock held directly by Tortoise Sponsor LLC. The address of each of TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC is 5100 W. 115th Place, Leawood, Kansas 66211."}],"balance_after":4439605,"source":{"system":"sec-edgar","filing":"0001213900-20-030169","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1735321/000121390020030169/ownership.xml","form_type":"4"}},{"id":3538219,"issuer":{"id":5333,"kind":"organization","name":"Hyliion Holdings Corp.","symbol":"HYLN"},"owners":[{"id":146166,"kind":"organization","name":"Tortoise Sponsor LLC","position":1,"cik":"0001768532","reported_name":"Tortoise Sponsor LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135926,"kind":"organization","name":"TortoiseEcofin Borrower LLC","position":2,"cik":"0001735321","reported_name":"Tortoise Borrower LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":135927,"kind":"organization","name":"TortoiseEcofin Investments, LLC","position":3,"cik":"0001730884","reported_name":"Tortoise Investments, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2019-05-06T16:42:36.000Z","date":"2019-03-07","kind":"other","acquired":false,"shares":643520,"ownership":{"direct":false,"nature":"See foot note"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The shares of Class B Common Stock are convertible into shares of the Issuer's Class A Common Stock on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date."},{"field":"kind","element":"transactionCoding","label":"F2","text":"The Class B Common Stock owned by Tortoise Sponsor LLC included up to 843,750 shares that were subject to forfeiture in the event the underwriters of the initial public offering of the Issuer's securities did not exercise in full their over-allotment option as described in the Issuer's Registration Statement on Form S-1 (File No. 333-229537). Because the underwriters exercised their over-allotment option in part, Tortoise Sponsor LLC forfeited 643,520 shares of Class B Common Stock on March 7, 2019 for cancellation by the Issuer."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Class B Common Stock owned by Tortoise Sponsor LLC included up to 843,750 shares that were subject to forfeiture in the event the underwriters of the initial public offering of the Issuer's securities did not exercise in full their over-allotment option as described in the Issuer's Registration Statement on Form S-1 (File No. 333-229537). Because the underwriters exercised their over-allotment option in part, Tortoise Sponsor LLC forfeited 643,520 shares of Class B Common Stock on March 7, 2019 for cancellation by the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The shares of Class B Common Stock are convertible into shares of the Issuer's Class A Common Stock on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The shares of Class B Common Stock are convertible into shares of the Issuer's Class A Common Stock on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Tortoise Sponsor LLC is the record holder of the shares reported herein. Tortoise Borrower LLC is the managing member of Tortoise Sponsor LLC. Tortoise Parent Holdco LLC is the sole member of Tortoise Borrower LLC, and Tortoise Investments, LLC is the sole member of Tortoise Parent Holdco LLC. Accordingly, Tortoise Borrower LLC and Tortoise Investments, LLC may be deemed to have or share beneficial ownership of the shares of Class B Common Stock held directly by Tortoise Sponsor LLC. The address of each of Tortoise Borrower LLC and Tortoise Investments, LLC is 11550 Ash Street, Suite 300, Leawood, Kansas 66211."}],"balance_after":4439605,"derivative":{"underlying":"Class A Common Stock","underlying_shares":643520},"source":{"system":"sec-edgar","filing":"0001213900-19-007882","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1735321/000121390019007882/ownership.xml","form_type":"4"}}]}