{"transactions":[{"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":693307,"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":"2026-08-07T22:32:14.000Z","date":"2025-12-29","kind":"gift","planned":false,"acquired":false,"shares":1887,"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":9365,"source":{"system":"sec-edgar","filing":"0002035875-26-000004","document":"wk-form4_1786141932.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587526000004/wk-form4_1786141932.xml","form_type":"4"}},{"id":694385,"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":"2026-08-06T20:51:04.000Z","date":"2026-08-04","kind":"grant","planned":false,"acquired":true,"shares":1598,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Shares will vest on the earlier of the 2027 Annual Meeting of shareholders and August 4, 2027, subject to the terms of the Restricted Stock Agreement."}],"balance_after":11252,"source":{"system":"sec-edgar","filing":"0002035875-26-000002","document":"wk-form4_1786049461.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587526000002/wk-form4_1786049461.xml","form_type":"4"}},{"id":1072473,"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":"2025-08-07T21:49:41.000Z","date":"2025-08-05","kind":"grant","planned":false,"acquired":true,"shares":7767,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock granted to Mr. Heard as compensation of his service as a non-employee director on the Issuer's board of directors. The restricted stock vests in full on the earlier of (i) August 5, 2026 or (ii) the Issuer's next annual stockholder meeting; provided, however, that if the vesting would otherwise occur on a date that is closed for trading under the Issuer's Insider Trading Policy, the vesting shall be automatically deemed to occur on the next trading day on which the sale of shares of common stock by the Reporting Person in the open market would be permitted under the Issuer's Insider Trading Policy."}],"balance_after":9654,"source":{"system":"sec-edgar","filing":"0002035875-25-000002","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000002/primary_doc.xml","form_type":"4"}},{"id":1169984,"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":"2025-04-17T19:57:46.000Z","date":"2025-03-21","kind":"sale","planned":false,"acquired":false,"shares":3500,"price":37.97,"value":132895.0,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1716738,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1169983,"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":"2025-04-17T19:57:46.000Z","date":"2025-03-20","kind":"sale","planned":false,"acquired":false,"shares":7000,"price":38.4,"value":268800.0,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is a weighted average price. These shares were sold in multiple transactions at prices in the range indicated for the corresponding transaction date as follows: Price range for 02/14/2025: $40.83 to $41.48, inclusive; Price range for 03/17/2025: $38.49 to $39.41, inclusive; Price range for 03/19/2025: $38.84 to $38.99, inclusive; Price range for 03/20/2025: $38.40 to $38.39, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1720238,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1169982,"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":"2025-04-17T19:57:46.000Z","date":"2025-03-19","kind":"sale","planned":false,"acquired":false,"shares":6500,"price":38.93,"value":253045.0,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is a weighted average price. These shares were sold in multiple transactions at prices in the range indicated for the corresponding transaction date as follows: Price range for 02/14/2025: $40.83 to $41.48, inclusive; Price range for 03/17/2025: $38.49 to $39.41, inclusive; Price range for 03/19/2025: $38.84 to $38.99, inclusive; Price range for 03/20/2025: $38.40 to $38.39, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1727238,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1169981,"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":"2025-04-17T19:57:46.000Z","date":"2025-03-17","kind":"sale","planned":false,"acquired":false,"shares":8251,"price":38.73,"value":319561.23,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is a weighted average price. These shares were sold in multiple transactions at prices in the range indicated for the corresponding transaction date as follows: Price range for 02/14/2025: $40.83 to $41.48, inclusive; Price range for 03/17/2025: $38.49 to $39.41, inclusive; Price range for 03/19/2025: $38.84 to $38.99, inclusive; Price range for 03/20/2025: $38.40 to $38.39, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1733738,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1169980,"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":"2025-04-17T19:57:46.000Z","date":"2025-02-20","kind":"sale","planned":false,"acquired":false,"shares":2249,"price":41.67,"value":93715.83,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1741989,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1169979,"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":"2025-04-17T19:57:46.000Z","date":"2025-02-14","kind":"sale","planned":false,"acquired":false,"shares":7900,"price":41.18,"value":325322.0,"ownership":{"direct":false,"nature":"By Heard Capital LLC"},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The dispositions reported herein were executed under the trading discretion of an individual portfolio manager at Heard Capital LLC without any instruction from or knowledge of the Reporting Person. The Reporting Person has promptly reported the transactions after becoming aware of them."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is a weighted average price. These shares were sold in multiple transactions at prices in the range indicated for the corresponding transaction date as follows: Price range for 02/14/2025: $40.83 to $41.48, inclusive; Price range for 03/17/2025: $38.49 to $39.41, inclusive; Price range for 03/19/2025: $38.84 to $38.99, inclusive; Price range for 03/20/2025: $38.40 to $38.39, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","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":1744238,"source":{"system":"sec-edgar","filing":"0002035875-25-000001","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000203587525000001/primary_doc.xml","form_type":"4"}},{"id":1230130,"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":"2025-03-05T00:22:08.000Z","date":"2025-02-28","kind":"grant","planned":false,"acquired":true,"shares":1887,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The restricted stock awards (\"RSAs\") vests in full on the earlier of (i) August 6, 2025 or (ii) the Issuer's next annual stockholder meeting."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents RSAs granted to Mr. Heard as compensation of his service as a non-employee director on the Issuer's board of directors."}],"balance_after":1887,"source":{"system":"sec-edgar","filing":"0001304492-25-000026","document":"wk-form4_1741134122.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2035875/000130449225000026/wk-form4_1741134122.xml","form_type":"4"}}]}