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The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":139065,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563856,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-20T23:14:57.000Z","date":"2021-09-17","kind":"exercise","acquired":true,"shares":16212,"price":24.45,"value":396383.4,"ownership":{"direct":true},"balance_after":147595,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563855,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-20T23:14:57.000Z","date":"2021-09-16","kind":"sale","acquired":false,"shares":6598,"price":57.6294,"value":380238.7812,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $57.49 to $57.91. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":131383,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563854,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-20T23:14:57.000Z","date":"2021-09-16","kind":"sale","acquired":false,"shares":7514,"price":57.2277,"value":430008.9378,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $56.485 to $57.485. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":137981,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563853,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-20T23:14:57.000Z","date":"2021-09-16","kind":"sale","acquired":false,"shares":3415,"price":55.9026,"value":190907.379,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $55.44 to $56.41. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":145495,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563852,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-20T23:14:57.000Z","date":"2021-09-16","kind":"sale","acquired":false,"shares":5395,"price":54.8821,"value":296088.9295,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $54.43 to $54.42. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":148910,"source":{"system":"sec-edgar","filing":"0001209191-21-056954","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056954/doc4.xml","form_type":"4"}},{"id":2563851,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common 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The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":131383,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568815,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-16T01:19:02.000Z","date":"2021-09-15","kind":"sale","acquired":false,"shares":12356,"price":56.3074,"value":695734.2344,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $56.10 to $57.01. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":131654,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568814,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-16T01:19:02.000Z","date":"2021-09-15","kind":"sale","acquired":false,"shares":8383,"price":55.6767,"value":466737.7761,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $55.095 to $56.095. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":144010,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568813,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-16T01:19:02.000Z","date":"2021-09-15","kind":"exercise","acquired":true,"shares":21010,"price":26.59,"value":558655.9,"ownership":{"direct":true},"balance_after":152393,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568812,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-16T01:19:02.000Z","date":"2021-09-14","kind":"sale","acquired":false,"shares":2052,"price":58.6252,"value":120298.9104,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $58.435 to $58.865. The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":131383,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568811,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-09-16T01:19:02.000Z","date":"2021-09-14","kind":"sale","acquired":false,"shares":8453,"price":57.9366,"value":489738.0798,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple sales through a sale order executed by a broker-dealer at prices ranging from $57.43 to $58.425. The price reported in this column reflects the weighted average sale price. 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The price reported in this column reflects the weighted average sale price. 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The price reported in this column reflects the weighted average sale price. The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":134485,"source":{"system":"sec-edgar","filing":"0001209191-21-056304","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919121056304/doc4.xml","form_type":"4"}},{"id":2568805,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common 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The price reported in this column reflects the weighted average sale price. 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The Reporting Person will provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":37215,"source":{"system":"sec-edgar","filing":"0001209191-20-047841","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919120047841/doc4.xml","form_type":"4"}},{"id":3098329,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Stock Option (Right to Buy)","published_at":"2020-06-26T23:19:15.000Z","date":"2020-06-24","kind":"grant","acquired":true,"shares":60558,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the option shares vest and become exercisable on July 1, 2021 with the remaining shares vesting in 3 equal annual installments thereafter."}],"balance_after":60558,"derivative":{"exercise_price":49.92,"expiration_date":"2030-06-24","underlying":"Common Stock","underlying_shares":60558},"source":{"system":"sec-edgar","filing":"0001209191-20-039182","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1304492/000120919120039182/doc4.xml","form_type":"4"}},{"id":3131886,"issuer":{"id":4597,"kind":"organization","name":"Anterix Inc.","symbol":"ATEX"},"owners":[{"id":87992,"kind":"person","name":"Schwartz Robert Harris","position":1,"cik":"0001654170","reported_name":"Schwartz Robert Harris","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and COO"}}],"security":"Common Stock","published_at":"2020-05-28T22:25:03.000Z","date":"2020-05-26","kind":"grant","acquired":true,"shares":4199,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the issuance of restricted stock units (the \"RSUs\") in lieu of a cash bonus payment the Recipient was eligible to receive pursuant to the Issuer's Short-Term Incentive Plan for services performed by the Recipient during the fiscal year ended March 31, 2020.   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