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The amount acquired in column 4 represents equivalent rights accrued on restricted stock units with respect to the Issuer's common stock (\"Original RSUs\") held by the reporting person as a result of the Dividend. Each dividend equivalent right entitles the reporting person to receive one share of the Issuer's common stock upon the settlement of the Original RSUs and is subject to the same terms and conditions, including vesting and settlement, as the Original RSUs to which it relates. 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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4."}],"balance_after":57018.7,"source":{"system":"sec-edgar","filing":"0001209191-23-012747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1014813/000120919123012747/doc4.xml","form_type":"4"}},{"id":1994174,"issuer":{"id":833,"kind":"organization","name":"Iridium Communications Inc.","symbol":"IRDM"},"owners":[{"id":114877,"kind":"person","name":"WEST BARRY","position":1,"cik":"0001014813","reported_name":"WEST BARRY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-02-24T16:43:49.000Z","date":"2023-02-22","kind":"exercise","acquired":true,"shares":19736,"price":8.49,"value":167558.64,"ownership":{"direct":true},"balance_after":67918.7,"source":{"system":"sec-edgar","filing":"0001209191-23-012747","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1014813/000120919123012747/doc4.xml","form_type":"4"}},{"id":2059291,"issuer":{"id":833,"kind":"organization","name":"Iridium Communications Inc.","symbol":"IRDM"},"owners":[{"id":114877,"kind":"person","name":"WEST BARRY","position":1,"cik":"0001014813","reported_name":"WEST BARRY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-01-09T16:57:47.000Z","date":"2023-01-05","kind":"grant","acquired":true,"shares":3760,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This security represents restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the issuer."},{"field":"shares","element":"transactionShares","label":"F2","text":"The shares underlying this restricted stock unit award vest on January 5, 2024, subject to the reporting person's continued service with the issuer."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The restricted stock units were issued to the reporting person pursuant to the issuer's director compensation plan."}],"balance_after":48182.7,"source":{"system":"sec-edgar","filing":"0001209191-23-002585","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1014813/000120919123002585/doc4.xml","form_type":"4"}},{"id":2199379,"issuer":{"id":833,"kind":"organization","name":"Iridium Communications Inc.","symbol":"IRDM"},"owners":[{"id":114877,"kind":"person","name":"WEST BARRY","position":1,"cik":"0001014813","reported_name":"WEST BARRY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-01T17:17:55.000Z","date":"2022-07-29","kind":"sale","acquired":false,"shares":3002,"price":44.03,"value":132178.06,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4."}],"balance_after":42860.7,"source":{"system":"sec-edgar","filing":"0001209191-21-022483","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1014813/000120919121022483/doc4.xml","form_type":"4"}},{"id":2912770,"issuer":{"id":833,"kind":"organization","name":"Iridium Communications Inc.","symbol":"IRDM"},"owners":[{"id":114877,"kind":"person","name":"WEST BARRY","position":1,"cik":"0001014813","reported_name":"WEST BARRY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-01-08T17:28:30.000Z","date":"2021-01-06","kind":"grant","acquired":true,"shares":3002,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This security represents restricted stock units. 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