{"transactions":[{"id":3544528,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2019-05-01T21:47:15.000Z","date":"2019-05-01","kind":"grant","acquired":true,"shares":5000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares of restricted stock will vest in four equal quarterly installments starting on March 1, 2022."}],"balance_after":41440,"source":{"system":"sec-edgar","filing":"0001567619-19-009574","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761919009574/doc1.xml","form_type":"4"}},{"id":3619655,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2019-03-04T16:05:27.000Z","date":"2019-03-01","kind":"sale","acquired":false,"shares":2400,"price":48.9985,"value":117596.4,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":36440,"source":{"system":"sec-edgar","filing":"0001567619-19-005896","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761919005896/doc1.xml","form_type":"4"}},{"id":3744150,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-12-04T16:56:11.000Z","date":"2018-12-03","kind":"sale","acquired":false,"shares":3000,"price":49.1575,"value":147472.5,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":38840,"source":{"system":"sec-edgar","filing":"0001567619-18-007286","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761918007286/doc1.xml","form_type":"4"}},{"id":3817178,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-09-13T18:08:10.000Z","date":"2018-09-13","kind":"sale","acquired":false,"shares":4000,"price":54.9222,"value":219688.8,"ownership":{"direct":true},"balance_after":41840,"source":{"system":"sec-edgar","filing":"0001567619-18-002527","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761918002527/doc1.xml","form_type":"4"}},{"id":3818608,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-09-12T19:26:23.000Z","date":"2018-09-12","kind":"sale","acquired":false,"shares":2000,"price":54.955,"value":109910.0,"ownership":{"direct":true},"balance_after":45840,"source":{"system":"sec-edgar","filing":"0001567619-18-002441","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761918002441/doc1.xml","form_type":"4"}},{"id":3827496,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-09-04T21:18:21.000Z","date":"2018-09-04","kind":"sale","acquired":false,"shares":3000,"price":53.9523,"value":161856.9,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":47840,"source":{"system":"sec-edgar","filing":"0001567619-18-002068","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000156761918002068/doc1.xml","form_type":"4"}},{"id":3911064,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-06-01T21:13:07.000Z","date":"2018-06-01","kind":"sale","acquired":false,"shares":3000,"price":51.1446,"value":153433.8,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":50840,"source":{"system":"sec-edgar","filing":"0001140361-18-026870","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036118026870/doc1.xml","form_type":"4"}},{"id":4024316,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-03-01T22:34:35.000Z","date":"2018-03-01","kind":"sale","acquired":false,"shares":3000,"price":43.173,"value":129519.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":53840,"source":{"system":"sec-edgar","filing":"0001140361-18-011335","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036118011335/doc1.xml","form_type":"4"}},{"id":4040832,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2018-02-22T21:48:17.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":9600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares of restricted stock will vest in four equal quarterly installments starting on March 1, 2021."}],"balance_after":56840,"source":{"system":"sec-edgar","filing":"0001140361-18-009636","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036118009636/doc1.xml","form_type":"4"}},{"id":4146316,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2017-12-01T22:12:58.000Z","date":"2017-12-01","kind":"sale","acquired":false,"shares":3000,"price":46.5114,"value":139534.2,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":47240,"source":{"system":"sec-edgar","filing":"0001140361-17-044635","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117044635/doc1.xml","form_type":"4"}},{"id":4218034,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2017-09-05T12:51:14.000Z","date":"2017-09-01","kind":"sale","acquired":false,"shares":3000,"price":46.7537,"value":140261.1,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":50240,"source":{"system":"sec-edgar","filing":"0001140361-17-034214","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117034214/doc1.xml","form_type":"4"}},{"id":4296086,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2017-06-02T20:18:31.000Z","date":"2017-06-01","kind":"sale","acquired":false,"shares":3000,"price":40.2021,"value":120606.3,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."}],"balance_after":53240,"source":{"system":"sec-edgar","filing":"0001140361-17-023554","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117023554/doc1.xml","form_type":"4"}},{"id":4335563,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2017-05-03T20:16:30.000Z","date":"2017-05-03","kind":"grant","acquired":true,"shares":9600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares of restricted stock will vest in four equal quarterly installments starting on March 1, 2020."}],"balance_after":56240,"source":{"system":"sec-edgar","filing":"0001140361-17-018110","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117018110/doc1.xml","form_type":"4"}},{"id":4410071,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2017-03-02T14:11:54.000Z","date":"2017-03-01","kind":"sale","acquired":false,"shares":3000,"price":41.9967,"value":125990.1,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"A portion of these securities is not vested."}],"balance_after":46640,"source":{"system":"sec-edgar","filing":"0001140361-17-010154","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036117010154/doc1.xml","form_type":"4"}},{"id":4535545,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2016-12-02T13:00:40.000Z","date":"2016-12-01","kind":"sale","acquired":false,"shares":1000,"price":36.99,"value":36990.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"A portion of these securities is not vested."}],"balance_after":49640,"source":{"system":"sec-edgar","filing":"0001140361-16-088480","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036116088480/doc1.xml","form_type":"4"}},{"id":4570843,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2016-11-01T21:02:36.000Z","date":"2016-11-01","kind":"sale","acquired":false,"shares":1000,"price":36.4,"value":36400.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"A portion of these securities is not vested."}],"balance_after":50640,"source":{"system":"sec-edgar","filing":"0001140361-16-084405","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036116084405/doc1.xml","form_type":"4"}},{"id":4590494,"issuer":{"id":1298,"kind":"organization","name":"COGENT COMMUNICATIONS HOLDINGS, INC.","symbol":"CCOI"},"owners":[{"id":158018,"kind":"person","name":"BEURY ROBERT N JR","position":1,"cik":"0001166979","reported_name":"BEURY ROBERT N JR","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP & Chief Legal Officer"}}],"security":"common stock","published_at":"2016-10-03T21:10:22.000Z","date":"2016-10-03","kind":"sale","acquired":false,"shares":1000,"price":36.236,"value":36236.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"The sale of shares of common stock reported here was implemented pursuant to Mr. Beury's structured sale plan (10b5-1 plan)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"A portion of these securities is not vested."}],"balance_after":51640,"source":{"system":"sec-edgar","filing":"0001140361-16-081431","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1158324/000114036116081431/doc1.xml","form_type":"4"}}]}