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Idealab is managed by a board of directors consisting of Mr. Gross, Marcia Goodstein (Mr. Gross's wife), Renee LaBran and Bob Kavner, and no single person has voting or dispositive authority over the securities reported herein. Mr. Gross may be deemed to share beneficial ownership of the securities held by Holdings. 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Mr. Gross 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 each separate price within the ranges set forth in footnote (1) to this Form 4."}],"balance_after":2672612,"source":{"system":"sec-edgar","filing":"0001214659-23-007825","document":"marketforms-61649.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007825/marketforms-61649.xml","form_type":"4"}},{"id":1878644,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-25T16:30:50.000Z","date":"2023-05-24","kind":"exercise","planned":false,"acquired":true,"shares":56523,"price":0.09,"value":5087.07,"ownership":{"direct":true},"balance_after":2729135,"source":{"system":"sec-edgar","filing":"0001214659-23-007825","document":"marketforms-61649.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007825/marketforms-61649.xml","form_type":"4"}},{"id":1878643,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-25T16:30:50.000Z","date":"2023-05-23","kind":"sale","planned":false,"acquired":false,"shares":94826,"price":0.26,"value":24654.76,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.26 to $0.27, inclusive. Mr. Gross 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 each separate price within the ranges set forth in footnote (1) to this Form 4."}],"balance_after":2672612,"source":{"system":"sec-edgar","filing":"0001214659-23-007825","document":"marketforms-61649.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007825/marketforms-61649.xml","form_type":"4"}},{"id":1878642,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-25T16:30:50.000Z","date":"2023-05-23","kind":"exercise","planned":false,"acquired":true,"shares":94826,"price":0.09,"value":8534.34,"ownership":{"direct":true},"balance_after":2767438,"source":{"system":"sec-edgar","filing":"0001214659-23-007825","document":"marketforms-61649.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007825/marketforms-61649.xml","form_type":"4"}},{"id":1885503,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-18","kind":"exercise","planned":false,"acquired":false,"shares":340,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options vested and became exercisable in equal monthly installments commencing December 6, 2018, subject to Mr. Gross's continuous service which ceased effective February 5, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The options are exercisable through the indicated expiration date pursuant to an extension granted by the Issuer. The original expiration date was approximately 10 years from the initial vesting date of options with the same exercise price."}],"balance_after":3056301,"derivative":{"exercise_price":0.09,"expiration_date":"2023-07-05","underlying":"Common Stock","underlying_shares":340},"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1885502,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-17","kind":"exercise","planned":false,"acquired":false,"shares":153069,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The options vested and became exercisable in equal monthly installments commencing December 6, 2018, subject to Mr. Gross's continuous service which ceased effective February 5, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The options are exercisable through the indicated expiration date pursuant to an extension granted by the Issuer. The original expiration date was approximately 10 years from the initial vesting date of options with the same exercise price."}],"balance_after":3056641,"derivative":{"exercise_price":0.09,"expiration_date":"2023-07-05","underlying":"Common Stock","underlying_shares":153069},"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1885501,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-18","kind":"sale","planned":false,"acquired":false,"shares":340,"price":0.28,"value":95.2,"ownership":{"direct":true},"balance_after":2672612,"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1885500,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-18","kind":"exercise","planned":false,"acquired":true,"shares":340,"price":0.09,"value":30.6,"ownership":{"direct":true},"balance_after":2672952,"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1885499,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-17","kind":"sale","planned":false,"acquired":false,"shares":153069,"price":0.29,"value":44390.01,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.28 to $0.29, inclusive. Mr. Gross 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 each separate price within the ranges set forth in footnote (1) to this Form 4."}],"balance_after":2672612,"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1885498,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T18:22:48.000Z","date":"2023-05-17","kind":"exercise","planned":false,"acquired":true,"shares":153069,"price":0.09,"value":13776.21,"ownership":{"direct":true},"balance_after":2825681,"source":{"system":"sec-edgar","filing":"0001214659-23-007602","document":"marketforms-61581.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923007602/marketforms-61581.xml","form_type":"4"}},{"id":1919859,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2023-04-14T16:53:46.000Z","date":"2023-04-12","kind":"exercise","planned":false,"acquired":false,"shares":1000000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options vested and became exercisable in equal monthly installments commencing December 6, 2018, subject to Mr. Gross's continuous service which ceased effective February 5, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The options are exercisable through the indicated expiration date pursuant to an extension granted by the Issuer. The original expiration date was approximately 10 years from the initial vesting date of options with the same exercise price."}],"balance_after":3209710,"derivative":{"exercise_price":0.09,"expiration_date":"2023-07-05","underlying":"Common Stock","underlying_shares":1000000},"source":{"system":"sec-edgar","filing":"0001214659-23-005430","document":"marketforms-61211.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923005430/marketforms-61211.xml","form_type":"4"}},{"id":1919858,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-04-14T16:53:46.000Z","date":"2023-04-12","kind":"exercise","planned":false,"acquired":true,"shares":1000000,"price":0.09,"value":90000.0,"ownership":{"direct":true},"balance_after":2672612,"source":{"system":"sec-edgar","filing":"0001214659-23-005430","document":"marketforms-61211.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465923005430/marketforms-61211.xml","form_type":"4"}},{"id":2023371,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-02-10T19:24:22.000Z","date":"2022-12-16","kind":"grant","acquired":true,"shares":43271,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects an award of restricted stock units (\"RSUs\"), which represent a contingent right to receive one share of Common Stock for each RSU. The RSUs vest (subject to the Reporting Person's continued service to the Company or its subsidiaries through the applicable vesting date) in three equal annual installments, such that the RSUs will be fully vested on October 31, 2025."}],"balance_after":43271,"source":{"system":"sec-edgar","filing":"0001104659-23-018737","document":"tm236389-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465923018737/tm236389-1_4seq1.xml","form_type":"4"}},{"id":2074532,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-12-30T19:39:12.000Z","date":"2022-12-30","kind":"gift","acquired":false,"shares":211864,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Gross Goodstein Living Trust dated April 18, 2006"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Mr. Gross is co-Trustee together with his wife of the Gross Trust and may be deemed to have beneficial ownership of the securities held by the Gross Trust. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":4611086,"source":{"system":"sec-edgar","filing":"0001104659-22-131449","document":"tm2233731-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922131449/tm2233731-2_4seq1.xml","form_type":"4"}},{"id":2107433,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":true,"officer_title":"CHIEF EXECUTIVE OFFICER"}}],"security":"Common Stock","published_at":"2022-11-22T17:36:14.000Z","date":"2022-11-18","kind":"purchase","acquired":true,"shares":50000,"price":1,"value":50000.0,"ownership":{"direct":true},"balance_after":1672612,"source":{"system":"sec-edgar","filing":"0001127602-22-026273","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000112760222026273/form4.xml","form_type":"4"}},{"id":2131848,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-10-26T21:00:41.000Z","date":"2022-10-25","kind":"sale","acquired":false,"shares":16250,"price":3.7781,"value":61394.125,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.465 to $4.085. The reporting\nperson undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information\nregarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent\nso no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial\nownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the\n\"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive\nOfficer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1590997,"source":{"system":"sec-edgar","filing":"0001104659-22-111651","document":"tm2229003-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922111651/tm2229003-1_4seq1.xml","form_type":"4"}},{"id":2131847,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-10-26T21:00:41.000Z","date":"2022-10-24","kind":"sale","acquired":false,"shares":16250,"price":3.6141,"value":58729.125,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.515 to $3.81. The reporting person undertakes to provide 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 within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent\nso no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial\nownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the\n\"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive\nOfficer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1607247,"source":{"system":"sec-edgar","filing":"0001104659-22-111651","document":"tm2229003-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922111651/tm2229003-1_4seq1.xml","form_type":"4"}},{"id":2133137,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-10-24T16:41:50.000Z","date":"2022-10-20","kind":"sale","acquired":false,"shares":80000,"price":4.218,"value":337440.0,"ownership":{"direct":false,"nature":"Held by Gross Goodstein Living Trust dated April 18, 2006"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.12 to $4.52. The reporting person undertakes to provide 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 within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Mr. Gross is co-Trustee together with his wife of the Gross Trust and may be deemed to have beneficial ownership of the securities held by the Gross Trust. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":4822950,"source":{"system":"sec-edgar","filing":"0001104659-22-110939","document":"tm2228825-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922110939/tm2228825-1_4seq1.xml","form_type":"4"}},{"id":2138528,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-10-12T17:12:02.000Z","date":"2022-10-11","kind":"sale","acquired":false,"shares":16250,"price":5.342,"value":86807.5,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.155 to $5.53. The reporting\nperson undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information\nregarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent\nso no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial\nownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the\n\"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive\nOfficer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1623497,"source":{"system":"sec-edgar","filing":"0001104659-22-108152","document":"tm2228108-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922108152/tm2228108-1_4seq1.xml","form_type":"4"}},{"id":2138527,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-10-12T17:12:02.000Z","date":"2022-10-10","kind":"sale","acquired":false,"shares":16250,"price":5.4649,"value":88804.625,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.045 to $5.615. The reporting\nperson undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information\nregarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent\nso no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial\nownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the\n\"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive\nOfficer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1639747,"source":{"system":"sec-edgar","filing":"0001104659-22-108152","document":"tm2228108-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922108152/tm2228108-1_4seq1.xml","form_type":"4"}},{"id":2150086,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-09-28T21:02:15.000Z","date":"2022-09-27","kind":"sale","acquired":false,"shares":16250,"price":5.3589,"value":87082.125,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.01 to $5.58. The reporting person undertakes to provide 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 within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent so no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial ownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the \"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive Officer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1655997,"source":{"system":"sec-edgar","filing":"0001104659-22-103814","document":"tm2226888-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922103814/tm2226888-1_4seq1.xml","form_type":"4"}},{"id":2150085,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-09-28T21:02:15.000Z","date":"2022-09-26","kind":"sale","acquired":false,"shares":16250,"price":4.8291,"value":78472.875,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.37 to $5.05. The reporting person undertakes to provide 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 within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent so no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial ownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the \"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive Officer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1672247,"source":{"system":"sec-edgar","filing":"0001104659-22-103814","document":"tm2226888-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922103814/tm2226888-1_4seq1.xml","form_type":"4"}},{"id":2166351,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":true,"officer_title":"CHIEF EXECUTIVE OFFICER"}}],"security":"Common Stock","published_at":"2022-09-06T17:50:39.000Z","date":"2022-09-01","kind":"other","acquired":false,"shares":1070707,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The securities are held directly by Idealab Studio, LLC (\"Idealab Studio\"). Mr. Gross is the Chairman and Chief Executive Officer of Idealab Studio. In addition, Mr. Gross is co-Trustee of The Gross Goodstein Living Trust dated April 18, 2006 (the \"Trust\"), which owns a majority of the class of securities entitled to elect two directors to Idealab Studio's board of managers. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the securities held by Idealab Studio. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":16175,"source":{"system":"sec-edgar","filing":"0001127602-22-022117","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000112760222022117/form4.xml","form_type":"4"}},{"id":2178579,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-19T17:14:19.000Z","date":"2022-08-17","kind":"sale","acquired":false,"shares":170210,"price":5.1838,"value":882334.598,"ownership":{"direct":false,"nature":"Held by Idealab Holdings, LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $5.15 to $5.25, inclusive. The reporting person undertakes to provide to the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Idealab Holdings, LLC (\"Holdings\") is a wholly-owned subsidiary of Idealab, a California corporation. Idealab is managed by a board of directors consisting of Bill Gross, Marcia Goodstein (Mr. Gross's wife), Renee LaBran and Bob Kavner, and no single person has voting or dispositive authority over the securities reported herein. Mr. Gross may be deemed to share beneficial ownership of the securities held by Holdings. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":1276355,"source":{"system":"sec-edgar","filing":"0001104659-22-093010","document":"tm2224129-3_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922093010/tm2224129-3_4seq1.xml","form_type":"4"}},{"id":2178578,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-19T17:14:19.000Z","date":"2022-08-17","kind":"other","acquired":false,"shares":36825,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Idealab Holdings, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a disposition of securities from an in-kind distribution, and not a purchase or sale, without additional consideration paid."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Idealab Holdings, LLC (\"Holdings\") is a wholly-owned subsidiary of Idealab, a California corporation. Idealab is managed by a board of directors consisting of Bill Gross, Marcia Goodstein (Mr. Gross's wife), Renee LaBran and Bob Kavner, and no single person has voting or dispositive authority over the securities reported herein. Mr. Gross may be deemed to share beneficial ownership of the securities held by Holdings. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":1446565,"source":{"system":"sec-edgar","filing":"0001104659-22-093010","document":"tm2224129-3_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922093010/tm2224129-3_4seq1.xml","form_type":"4"}},{"id":2185919,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-15T17:40:03.000Z","date":"2022-06-28","kind":"gift","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by spouse as UTMA custodian for child"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Transfer to spouse as custodian for child under Uniform Transfer to Minors Act. The reporting person disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Transfer to spouse as custodian for child under Uniform Transfer to Minors Act. The reporting person disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose."}],"balance_after":5002950,"source":{"system":"sec-edgar","filing":"0001104659-22-091365","document":"tm2223488-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922091365/tm2223488-1_4seq1.xml","form_type":"4"}},{"id":2185918,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-15T17:40:03.000Z","date":"2022-06-28","kind":"gift","acquired":false,"shares":500000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Gross Goodstein Living Trust dated April 18, 2006"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"This transaction involved a gift of securities to the reporting person's children and to his spouse as custodian for child under Uniform Transfer To Minors Act, which is further described in footnote 5 of this report. The reporting person disclaims beneficial ownership of the shares held by his children, and this report should not be deemed an admission that the reporting person is the beneficial owner of his children's shares for purposes of Section 16 or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Mr. Gross is co-Trustee together with his wife of the Gross Trust and may be deemed to have beneficial ownership of the securities held by the Gross Trust. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":4902950,"source":{"system":"sec-edgar","filing":"0001104659-22-091365","document":"tm2223488-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922091365/tm2223488-1_4seq1.xml","form_type":"4"}},{"id":2185917,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-15T17:40:03.000Z","date":"2022-08-11","kind":"other","acquired":false,"shares":46446,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a disposition of securities from an in-kind distribution, and not a purchase or sale, without additional consideration paid. Idealab Studio, LLC (\"ILS\") has a board of managers comprised of Mr. Gross, Allen Morgan, and Howard Morgan. The board of managers acts by majority consent so no single person has sole voting or dispositive authority over such securities. Mr. Gross, Mr. Allen Morgan and Mr. Howard Morgan each disclaims beneficial ownership of the securities held by ILS, except to the extent of his pecuniary interest in such securities. The Gross Goodstein Living Trust dated April 18, 2006 (the \"Gross Trust\") owns a majority of the class of securities entitled to elect two directors to ILS's board of managers. Mr. Gross is the Chairman and Chief Executive Officer of ILS. As a result of the foregoing, Mr. Gross may be deemed to beneficially own the common stock held of record by ILS."}],"balance_after":1688497,"source":{"system":"sec-edgar","filing":"0001104659-22-091365","document":"tm2223488-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922091365/tm2223488-1_4seq1.xml","form_type":"4"}},{"id":2230461,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-06-16T17:35:49.000Z","date":"2022-06-14","kind":"purchase","acquired":true,"shares":20000,"price":2.47,"value":49400.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.37 to $2.50, inclusive. The reporting person undertakes to provide to the Issuer, any security\nholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4."}],"balance_after":1622612,"source":{"system":"sec-edgar","filing":"0001127602-22-017645","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000112760222017645/form4.xml","form_type":"4"}},{"id":2239359,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2022-06-08T17:06:09.000Z","date":"2022-06-06","kind":"purchase","acquired":true,"shares":13124,"price":3.74,"value":49083.76,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.69 to $3.81, inclusive. 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 within the range set forth in this footnote (1) to this Form 4."}],"balance_after":1602612,"source":{"system":"sec-edgar","filing":"0001127602-22-017059","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000112760222017059/form4.xml","form_type":"4"}},{"id":2248066,"issuer":{"id":78373,"kind":"organization","name":"Heliogen, Inc.","symbol":"HLGN"},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF EXECUTIVE OFFICER"}}],"security":"Common Stock","published_at":"2022-06-02T16:05:24.000Z","date":"2021-12-30","kind":"grant","acquired":true,"shares":1086882,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The securities are held directly by Idealab Studio. Idealab Studio and Mr. Gross may be deemed to share beneficial ownership of the common stock. Idealab Studio and Mr. Gross each disclaims beneficial ownership of such shares except to the extent of his and its pecuniary interest therein."}],"balance_after":1086882,"source":{"system":"sec-edgar","filing":"0001214659-22-007751","document":"marketforms-56401.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000121465922007751/marketforms-56401.xml","form_type":"4/A","original_submission_date":"2022-01-04"}},{"id":2270859,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-05-16T21:02:20.000Z","date":"2022-05-12","kind":"other","acquired":true,"shares":1483390,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Idealab Holdings, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents an acquisition of securities from an in-kind distribution from Idealab Studio, LLC to its members, and not a purchase or sale, without additional consideration paid, and is therefore an exempt, non-matchable acquisition pursuant to Section 16(b). Idealab Holdings, LLC (\"Holdings\") is a wholly-owned subsidiary of Idealab, a California corporation. Idealab is managed by a board of directors consisting of Bill Gross, Marcia Goodstein (Mr. Gross's wife), Renee LaBran and Bob Kavner, and no single person has voting or dispositive authority over the securities reported herein. Mr. Gross may be deemed to share beneficial ownership of the securities held by Holdings. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":1483390,"source":{"system":"sec-edgar","filing":"0001104659-22-061594","document":"tm2215768-3_4seq.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922061594/tm2215768-3_4seq.xml","form_type":"4"}},{"id":2270858,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-05-16T21:02:20.000Z","date":"2022-05-12","kind":"other","acquired":false,"shares":13848605,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents a disposition of securities from an in-kind distribution, and not a purchase or sale, without additional consideration paid."}],"balance_after":1734943,"source":{"system":"sec-edgar","filing":"0001104659-22-061594","document":"tm2215768-3_4seq.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922061594/tm2215768-3_4seq.xml","form_type":"4"}},{"id":2270857,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-05-16T21:02:20.000Z","date":"2022-05-12","kind":"other","acquired":true,"shares":5402950,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Gross Goodstein Living Trust dated April 18, 2006"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents an acquisition of securities from an in-kind distribution from Idealab Studio, LLC to its members, and not a purchase or sale, without additional consideration paid, and is therefore an exempt, non-matchable acquisition pursuant to Section 16(b). Mr. Gross is co-Trustee together with his wife of the Gross Goodstein Living Trust dated April 18, 2006 (the \"Trust\") and may be deemed to have beneficial ownership of the securities held the Trust. Mr. Gross disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein."}],"balance_after":5402950,"source":{"system":"sec-edgar","filing":"0001104659-22-061594","document":"tm2215768-3_4seq.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1079818/000110465922061594/tm2215768-3_4seq.xml","form_type":"4"}},{"id":2395126,"issuer":{"id":5363,"kind":"organization","name":"Energy Vault Holdings, Inc."},"owners":[{"id":89742,"kind":"person","name":"GROSS WILLIAM","position":1,"cik":"0001079818","reported_name":"GROSS WILLIAM","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-02-15T20:19:03.000Z","date":"2022-02-11","kind":"grant","acquired":true,"shares":15583548,"ownership":{"direct":false,"nature":"Held by Idealab Studio, LLC"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"In connection with the merger described in that certain Business Combination Agreement and Plan of Reorganization, dated as of September 8, 2021, by and among Novus Capital Corporation II, now known as Energy Vault Holdings, Inc. (\"Energy Vault Holdings\") (the \"Issuer\"), NCCII Merger Corp. (\"Merger Sub\"), and Energy Vault, Inc. (\"Energy Vault\"), pursuant to which Merger Sub merged with and into Energy Vault, with Energy Vault surviving as a wholly-owned subsidiary of the Issuer (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Reporting Person received shares of Common Stock in exchange for 2,300,664 shares of common stock in Energy Vault. On the effective date of the Merger, the closing price of the Issuer's Common Stock was $11.55 per share. 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