{"transactions":[{"id":672659,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":18595,"kind":"person","name":"Cohen Seth Michael","position":1,"cik":"0002147965","reported_name":"Cohen Seth Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A common stock","published_at":"2026-08-28T22:50:35.000Z","date":"2026-08-12","kind":"grant","planned":false,"acquired":true,"shares":13255,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"13,255 represents shares of Class A Common Stock underlying an award of restricted stock units (\"RSUs\"). 100% of the RSUs will vest on the earlier of (i) the day before the Issuer's 2027 Annual Meeting of Stockholders or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service as a member of the Board of Directors of the Issuer through such vesting date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A is being filed solely to correct the total number of shares of Class A Common Stock beneficially owned by the Reporting Person as of the reporting date. The original Form 4 inadvertently excluded 2,000 shares of Class A Common Stock that were beneficially owned by the Reporting Person as of such date."}],"balance_after":15255,"source":{"system":"sec-edgar","filing":"0001628280-26-059452","document":"wk-form4a_1787957433.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026059452/wk-form4a_1787957433.xml","form_type":"4/A","original_submission_date":"2026-08-14"}},{"id":686389,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":18595,"kind":"person","name":"Cohen Seth Michael","position":1,"cik":"0002147965","reported_name":"Cohen Seth Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A common stock","published_at":"2026-08-14T12:04:16.000Z","date":"2026-08-12","kind":"grant","planned":false,"acquired":true,"shares":13255,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Class A Common Stock underlying an award of restricted stock units (\"RSUs\"). 100% of the RSUs will vest on the earlier of (i) the day before the Issuer's 2027 Annual Meeting of Stockholders or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service as a member of the Board of Directors of the Issuer through such vesting date."}],"balance_after":13255,"source":{"system":"sec-edgar","filing":"0001628280-26-056939","document":"wk-form4_1786709053.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026056939/wk-form4_1786709053.xml","form_type":"4"}},{"id":700431,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed-1 Preferred Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":14000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By ST-1014 Fund I, a series of Fundomo Syndicates, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":14000000},"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":700430,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Preferred Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":2027576,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Fundomo SN-002, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2027576},"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":700429,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":3849782,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3849782},"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":700428,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":14000000,"ownership":{"direct":false,"nature":"By ST-1014 Fund I, a series of Fundomo Syndicates, LP"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":14000000,"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":700427,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":2027576,"ownership":{"direct":false,"nature":"By Fundomo SN-002, LP"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":2027576,"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":700426,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27677,"kind":"organization","name":"Fundomo SN-001 GP, LLC","position":3,"cik":"0002146930","reported_name":"Fundomo SN-001 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27678,"kind":"organization","name":"Fundomo SN-002 GP, LLC","position":4,"cik":"0002146934","reported_name":"Fundomo SN-002 GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27679,"kind":"person","name":"Nobile Corey L.","position":5,"cik":"0002146927","reported_name":"Nobile Corey L.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-31T01:28:21.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":3849782,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey L. Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey L. Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement. As the fund lead under such limited partnership agreement, Corey L. Nobile may also be considered to have shared voting and dispositive powers over such shares. None of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":3849782,"source":{"system":"sec-edgar","filing":"0002084264-26-000006","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000006/primary_doc.xml","form_type":"4"}},{"id":704108,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29009,"kind":"organization","name":"ST-1014 Fund I, a series of Fundomo Syndicates, LP","position":1,"cik":"0002041625","reported_name":"ST-1014 Fund I, a series of Fundomo Syndicates, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed-1 Preferred Stock","published_at":"2026-07-23T20:56:22.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":14000000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\"), may be considered an affiliate of Fundomo SN-001, LP (\"SN-001\"), Fundomo SN-002, LP (\"SN-002\"), Fundomo SN-001 GP, LLC (\"SN-001 GP\"), and Fundomo SN-002 GP, LLC (\"SN-002 GP\"), but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The reporting person disclaims beneficial ownership of the reported securities (except to the extent of such person's pecuniary interest in such securities). The filing of this statement by the reporting person shall not be deemed an admission that such person is, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":14000000},"source":{"system":"sec-edgar","filing":"0002041625-26-000004","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2041625/000204162526000004/primary_doc.xml","form_type":"4"}},{"id":704107,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29009,"kind":"organization","name":"ST-1014 Fund I, a series of Fundomo Syndicates, LP","position":1,"cik":"0002041625","reported_name":"ST-1014 Fund I, a series of Fundomo Syndicates, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-23T20:56:22.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":14000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\"), may be considered an affiliate of Fundomo SN-001, LP (\"SN-001\"), Fundomo SN-002, LP (\"SN-002\"), Fundomo SN-001 GP, LLC (\"SN-001 GP\"), and Fundomo SN-002 GP, LLC (\"SN-002 GP\"), but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of SN-001, SN-002, SN-001 GP, or SN-002 GP has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"The reporting person disclaims beneficial ownership of the reported securities (except to the extent of such person's pecuniary interest in such securities). The filing of this statement by the reporting person shall not be deemed an admission that such person is, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":14000000,"source":{"system":"sec-edgar","filing":"0002041625-26-000004","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2041625/000204162526000004/primary_doc.xml","form_type":"4"}},{"id":704441,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29098,"kind":"organization","name":"Welara Capital Partners LLC Series 3","position":1,"cik":"0002078058","reported_name":"Welara Capital Partners LLC Series 3","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Preferred 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Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1728076},"source":{"system":"sec-edgar","filing":"0001213900-26-080554","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2078058/000121390026080554/ownership.xml","form_type":"4"}},{"id":704440,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29098,"kind":"organization","name":"Welara Capital Partners LLC Series 3","position":1,"cik":"0002078058","reported_name":"Welara Capital Partners LLC Series 3","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred 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Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3515018},"source":{"system":"sec-edgar","filing":"0001213900-26-080554","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2078058/000121390026080554/ownership.xml","form_type":"4"}},{"id":704439,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29098,"kind":"organization","name":"Welara Capital Partners LLC Series 3","position":1,"cik":"0002078058","reported_name":"Welara Capital Partners LLC Series 3","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed-1 Preferred 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Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":15000000},"source":{"system":"sec-edgar","filing":"0001213900-26-080554","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2078058/000121390026080554/ownership.xml","form_type":"4"}},{"id":704438,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29098,"kind":"organization","name":"Welara Capital Partners LLC Series 3","position":1,"cik":"0002078058","reported_name":"Welara Capital Partners LLC Series 3","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-23T00:58:58.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":20243094,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the Issuer's Fifth Amended and Restated Certificate of Incorporation, in connection with the completion of the Issuer's initial public offering of its Class A Common Stock, each share of Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock was automatically converted into shares of Class A Common Stock at a ratio of 1-for-1."}],"balance_after":20243094,"source":{"system":"sec-edgar","filing":"0001213900-26-080554","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2078058/000121390026080554/ownership.xml","form_type":"4"}},{"id":704434,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":true,"shares":175000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by LKT 2026 Irrevocable Trust, dated June 25, 2026"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"These shares are held by the LKT 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These shares are held by the LKT 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust"}],"balance_after":175000,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704433,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":false,"shares":175000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"}],"balance_after":5986876,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704432,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":true,"shares":245000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by EKG 2026 Irrevocable Trust, dated June 25, 2026"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"These shares are held by the EKG 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held by the EKG 2026 Irrevocable Trust, dated June 25, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Leila Karim Tehrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."}],"balance_after":245000,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704431,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":false,"shares":245000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"}],"balance_after":6161876,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704430,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by MT 2026 Irrevocable Trust, dated July 10, 2026"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"These shares are held by the MT 2026 Irrevocable Trust, dated July 10, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Merran Terrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These shares are held by the MT 2026 Irrevocable Trust, dated July 10, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Merran Terrani serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."}],"balance_after":60000,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704429,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":false,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"}],"balance_after":6406876,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704428,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":true,"shares":175000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by DSC 2026 Irrevocable Trust, dated June 24, 2026"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"These shares are held by the DSC 2026 Irrevocable Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These shares are held by the DSC 2026 Irrevocable Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."}],"balance_after":175000,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704427,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":false,"shares":175000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"}],"balance_after":6466876,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704426,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":true,"shares":629374,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held by Terrani 2026 Irrevocable Family Trust, dated June 24, 2026"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"These shares are held by the Terrani 2026 Irrevocable Family Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held by the Terrani 2026 Irrevocable Family Trust, dated June 24, 2026, a trust for the benefit of members of the Reporting Person's immediate family, of which Denise Sarah Castley serves as the trustee. By virtue of his relationship with the beneficiaries of the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust."}],"balance_after":629374,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704425,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29097,"kind":"person","name":"Terrani Kurt Amir","position":1,"cik":"0002142553","reported_name":"Terrani Kurt Amir","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO and Director"}}],"security":"Class A common stock","published_at":"2026-07-22T21:39:22.000Z","date":"2026-07-20","kind":"gift","planned":false,"acquired":false,"shares":629374,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a bona fide gift by the Reporting Person, for no consideration, to a trust established for the benefit of members of the Reporting Person's immediate family, as further described in the footnotes below. The Reporting Person is subject to a lock-up agreement that was entered into with the representatives of the underwriters in connection with the Issuer's initial public offering of its Class A Common Stock (the \"IPO\"). The shares were transferred by the Reporting Person to the trust as a bona fide gift not involving a disposition for value, which is a permissible exception under the terms of the lock-up agreement. In connection with the gift, the trustee of the trust has executed and delivered to the representatives of the underwriters a lock-up agreement in the form entered into by the Reporting Person in connection with the IPO, and the shares held by the trust remain subject to the restrictions on transfer set forth therein for the balance of the applicable lock-up period"}],"balance_after":6641876,"source":{"system":"sec-edgar","filing":"0001628280-26-049241","document":"wk-form4_1784756360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2086716/000162828026049241/wk-form4_1784756360.xml","form_type":"4"}},{"id":704437,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed-1 Preferred Stock","published_at":"2026-07-22T15:50:06.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":14000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By ST-1014 Fund I, a series of Fundomo Syndicates, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"shares","element":"transactionShares","label":"F5","text":"The Form 4 filed on July 21, 2026 is amended herein to correct a clerical error in Box 5 of Table II. Consistent with the disposition of the underlying preferred stock upon its conversion into Class A Common Stock as described in the accompanying footnotes, the number of derivative securities disposed of should have been entered under the \"(D)\" column in Box 5, but was inadvertently reported under the \"(A)\" column. The Form 4 remains otherwise unmodified."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":14000000},"source":{"system":"sec-edgar","filing":"0002084264-26-000004","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000004/primary_doc.xml","form_type":"4/A","original_submission_date":"2026-07-21"}},{"id":704436,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Preferred Stock","published_at":"2026-07-22T15:50:06.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":2027576,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Fundomo SN-002, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"shares","element":"transactionShares","label":"F5","text":"The Form 4 filed on July 21, 2026 is amended herein to correct a clerical error in Box 5 of Table II. Consistent with the disposition of the underlying preferred stock upon its conversion into Class A Common Stock as described in the accompanying footnotes, the number of derivative securities disposed of should have been entered under the \"(D)\" column in Box 5, but was inadvertently reported under the \"(A)\" column. The Form 4 remains otherwise unmodified."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2027576},"source":{"system":"sec-edgar","filing":"0002084264-26-000004","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000004/primary_doc.xml","form_type":"4/A","original_submission_date":"2026-07-21"}},{"id":704435,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-07-22T15:50:06.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":false,"shares":3849782,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"shares","element":"transactionShares","label":"F5","text":"The Form 4 filed on July 21, 2026 is amended herein to correct a clerical error in Box 5 of Table II. Consistent with the disposition of the underlying preferred stock upon its conversion into Class A Common Stock as described in the accompanying footnotes, the number of derivative securities disposed of should have been entered under the \"(D)\" column in Box 5, but was inadvertently reported under the \"(A)\" column. The Form 4 remains otherwise unmodified."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3849782},"source":{"system":"sec-edgar","filing":"0002084264-26-000004","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000004/primary_doc.xml","form_type":"4/A","original_submission_date":"2026-07-21"}},{"id":705047,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series Seed-1 Preferred Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":14000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By ST-1014 Fund I, a series of Fundomo Syndicates, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":14000000},"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":705046,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A-2 Preferred Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":2027576,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Fundomo SN-002, LP"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2027576},"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":705045,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":3849782,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3849782},"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":705044,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":14000000,"ownership":{"direct":false,"nature":"By ST-1014 Fund I, a series of Fundomo Syndicates, LP"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":14000000,"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":705043,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":2027576,"ownership":{"direct":false,"nature":"By Fundomo SN-002, LP"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":2027576,"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":705042,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":27675,"kind":"organization","name":"Fundomo SN-001, LP","position":1,"cik":"0002084264","reported_name":"Fundomo SN-001, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":27676,"kind":"organization","name":"Fundomo SN-002, LP","position":2,"cik":"0002124229","reported_name":"Fundomo SN-002, LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-07-21T14:09:54.000Z","date":"2026-07-17","kind":"exercise","planned":false,"acquired":true,"shares":3849782,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series Seed-1 Preferred Stock, Series A Preferred Stock, and Series A-2 Preferred Stock automatically converted into Class A Common Stock of the Issuer on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The securities had no expiration date."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Fundomo SN-001 GP, LLC (\"SN-001 GP\") is the sole general partner of Fundomo SN-001, LP (\"SN-001\"). Fundomo SN-002 GP, LLC (\"SN-002 GP\") is the sole general partner of Fundomo SN-002, LP (\"SN-002\"). Corey Nobile is the sole member of SN-001 GP and SN-002 GP. Each of SN-001 GP, SN-002 GP, and Corey Nobile may be deemed to share voting and dispositive power with respect to the shares held directly by SN-001 (in the case of SN-001 GP) and SN-002 (in the case of SN-002 GP), respectively."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"ST-1014 Fund I, a series of Fundomo Syndicates, LP (\"ST-1014 Fund I\") may be considered an affiliate of SN-001, SN-002, SN-001 GP and SN-002 GP, but voting and dispositive power over the shares held directly by ST-1014 Fund I has been delegated on an irrevocable basis to an unaffiliated third-party investment adviser pursuant to the terms of ST-1014 Fund I's limited partnership agreement, and none of the reporting persons named herein has voting or dispositive power over such shares."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Each of the reporting persons and entities disclaims beneficial ownership of the reported securities (except to the extent of such person's or entity's pecuniary interest in such securities). The filing of this statement by the reporting persons shall not be deemed an admission that such persons are, for purposes of Section 16 of the Securities and Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement."}],"balance_after":3849782,"source":{"system":"sec-edgar","filing":"0002084264-26-000003","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2084264/000208426426000003/primary_doc.xml","form_type":"4"}},{"id":706240,"issuer":{"id":4288,"kind":"organization","name":"Standard Nuclear, Inc."},"owners":[{"id":29649,"kind":"person","name":"Marrocco Keeley Rose","position":1,"cik":"0002143728","reported_name":"Marrocco Keeley Rose","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A common stock","published_at":"2026-07-18T01:14:51.000Z","date":"2026-07-17","kind":"grant","planned":false,"acquired":true,"shares":364625,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares of Class A Common Stock underlying an award of RSUs. 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