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The Reporting Person has provided to the Issuer and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":23339,"source":{"system":"sec-edgar","filing":"0001571521-26-000002","document":"wk-form4_1787777198.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157152126000002/wk-form4_1787777198.xml","form_type":"4"}},{"id":674804,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19424,"kind":"person","name":"Kuhn Thomas R.","position":1,"cik":"0001571521","reported_name":"Kuhn Thomas R.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-08-26T20:46:41.000Z","date":"2026-08-24","kind":"exercise","planned":false,"acquired":true,"shares":10000,"price":33.62,"value":336200.0,"ownership":{"direct":true},"balance_after":27731,"source":{"system":"sec-edgar","filing":"0001571521-26-000002","document":"wk-form4_1787777198.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157152126000002/wk-form4_1787777198.xml","form_type":"4"}},{"id":674803,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19424,"kind":"person","name":"Kuhn Thomas R.","position":1,"cik":"0001571521","reported_name":"Kuhn Thomas R.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-08-26T20:46:41.000Z","date":"2026-06-18","kind":"sale","planned":false,"acquired":false,"shares":1654,"price":79.52,"value":131526.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"These shares of Common Stock were automatically sold in a non-discretionary transaction to cover tax withholding obligations upon the settlement of certain time-based RSU awards."}],"balance_after":17731,"source":{"system":"sec-edgar","filing":"0001571521-26-000002","document":"wk-form4_1787777198.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157152126000002/wk-form4_1787777198.xml","form_type":"4"}},{"id":674802,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19424,"kind":"person","name":"Kuhn Thomas R.","position":1,"cik":"0001571521","reported_name":"Kuhn Thomas R.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Executive Chairman"}}],"security":"Common Stock","published_at":"2026-08-26T20:46:41.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":2791,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit (\"RSU\") represents a contingent right to receive one share of Issuer's Common Stock. The RSU vests in full on the earlier of: (i) May 20, 2027, and (ii) the Issuer's next annual stockholder meeting."}],"balance_after":19385,"source":{"system":"sec-edgar","filing":"0001571521-26-000002","document":"wk-form4_1787777198.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157152126000002/wk-form4_1787777198.xml","form_type":"4"}},{"id":680238,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":21305,"kind":"person","name":"Heard William","position":1,"cik":"0002035875","reported_name":"Heard William","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.0001 per share (\"Common Stock\")","published_at":"2026-08-20T20:29:51.000Z","date":"2026-08-19","kind":"gift","planned":false,"acquired":false,"shares":5400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a charitable donation of shares to a Donor Advised Fund."}],"balance_after":3965,"source":{"system":"sec-edgar","filing":"0002035875-26-000009","document":"wk-form4_1787257789.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587526000009/wk-form4_1787257789.xml","form_type":"4"}},{"id":683961,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":21305,"kind":"person","name":"Heard William","position":1,"cik":"0002035875","reported_name":"Heard William","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-18T21:38:02.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":46400,"price":90.1098,"value":4181094.72,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.9942 to $90.115, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These securities are held by certain investment funds and/or accounts for which Heard Capital LLC serves as investment manager. The Reporting Person is the ultimate beneficial owner of Heard Capital LLC. Each of Heard Capital LLC and the Reporting Person disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except to the extent of his or its pecuniary interest therein."}],"balance_after":1670338,"source":{"system":"sec-edgar","filing":"0002035875-26-000006","document":"wk-form4_1787089080.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587526000006/wk-form4_1787089080.xml","form_type":"4"}},{"id":685304,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":22825,"kind":"person","name":"Lang Scott A.","position":1,"cik":"0001571601","reported_name":"Lang Scott A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-08-17T21:00:45.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":5373,"price":88.9645,"value":478006.2585,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.515 to $88.525, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."}],"balance_after":41470,"source":{"system":"sec-edgar","filing":"0001571601-26-000010","document":"wk-form4_1787000442.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157160126000010/wk-form4_1787000442.xml","form_type":"4"}},{"id":685303,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":22825,"kind":"person","name":"Lang Scott A.","position":1,"cik":"0001571601","reported_name":"Lang Scott A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-08-17T21:00:45.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":18797,"price":90.1619,"value":1694773.2343,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.66 to $89.66, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."}],"balance_after":46843,"source":{"system":"sec-edgar","filing":"0001571601-26-000010","document":"wk-form4_1787000442.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157160126000010/wk-form4_1787000442.xml","form_type":"4"}},{"id":685302,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":22825,"kind":"person","name":"Lang Scott A.","position":1,"cik":"0001571601","reported_name":"Lang Scott A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-08-17T21:00:45.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":10087,"price":90.8697,"value":916602.6639,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.62 to $90.665, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."}],"balance_after":65640,"source":{"system":"sec-edgar","filing":"0001571601-26-000010","document":"wk-form4_1787000442.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157160126000010/wk-form4_1787000442.xml","form_type":"4"}},{"id":685301,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":22825,"kind":"person","name":"Lang Scott A.","position":1,"cik":"0001571601","reported_name":"Lang Scott A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-08-17T21:00:45.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":800,"price":91.69,"value":73352.0,"ownership":{"direct":true},"balance_after":75727,"source":{"system":"sec-edgar","filing":"0001571601-26-000010","document":"wk-form4_1787000442.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000157160126000010/wk-form4_1787000442.xml","form_type":"4"}},{"id":686605,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":7755,"price":84.4012,"value":654531.306,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.23 to $84.90, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":46392,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686604,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":21050,"price":83.8596,"value":1765244.58,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.225 to $84.21, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":54147,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686603,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":21045,"price":82.3878,"value":1733851.251,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.14 to $83.095, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":75197,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686602,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":34870,"price":81.5097,"value":2842243.239,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.09 to $82.035, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":96242,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686601,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":21434,"price":80.6322,"value":1728270.5748,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.085 to $81.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":131112,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686600,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":5030,"price":79.5296,"value":400033.888,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.085 to $80.035, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. No other amendments or changes have been made to the Original Form 4, except as reported in the Form 4/A filed by the Reporting Person on July 10, 2026."}],"balance_after":152546,"source":{"system":"sec-edgar","filing":"0001828490-26-000016","document":"wk-form4a_1786739874.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000182849026000016/wk-form4a_1786739874.xml","form_type":"4/A","original_submission_date":"2026-06-17"}},{"id":686599,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":19038,"kind":"person","name":"Guttman-McCabe Christopher","position":1,"cik":"0001828490","reported_name":"Guttman-McCabe Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Reg & Comm Officer"}}],"security":"Common Stock","published_at":"2026-08-14T20:37:56.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":11668,"price":78.7255,"value":918569.134,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.07 to $79.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"This Form 4/A amends the Form 4 filed by the reporting person on June 17, 2026 (the \"Original Form 4\"), which due to a clerical error inadvertently reported the incorrect number of securities sold in column 4 of Table I and the amount of shares beneficially owned in column 5 of Table I. This Form 4/A is being filed solely to correct the number of securities reported in column 4 and column 5 of Table II to reflect that an additional 31,415 shares were sold. 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