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converted into the right to receive a cash payment equal to the product of (i) the number of shares of Company Common Stock underlying such Restricted Stock Unit Award as of immediately prior to the Company Merger Effective Time and (ii) the Offer Price."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"At the Company Merger Effective Time, each award of restricted stock units (\"Company Restricted Stock Unit Award\") that was outstanding as of immediately prior to the Company Merger Effective Time vested in accordance with the terms of the applicable award agreement and all restrictions thereupon lapsed, and each such Company Restricted Stock Unit Award was converted into the right to receive a cash payment equal to the product of (i) the number of shares of Company Common Stock underlying such Restricted Stock Unit Award as of immediately prior to the Company Merger Effective Time and (ii) the Offer Price."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"At the Company Merger Effective Time, each award of restricted stock units (\"Company Restricted Stock Unit Award\") that was outstanding as of immediately prior to the Company Merger Effective Time vested in accordance with the terms of the applicable award agreement and all restrictions thereupon lapsed, and each such Company Restricted Stock Unit Award was converted into the right to receive a cash payment equal to the product of (i) the number of shares of Company Common Stock underlying such Restricted Stock Unit Award as of immediately prior to the Company Merger Effective Time and (ii) the Offer Price."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"At the Company Merger Effective Time, each award of restricted stock units (\"Company Restricted Stock Unit Award\") that was outstanding as of immediately prior to the Company Merger Effective Time vested in accordance with the terms of the applicable award agreement and all restrictions thereupon lapsed, and each such Company Restricted Stock Unit Award was converted into the right to receive a cash payment equal to the product of (i) the number of shares of Company Common Stock underlying such Restricted Stock Unit Award as of immediately prior to the Company Merger Effective Time and (ii) the Offer Price."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":23064},"source":{"system":"sec-edgar","filing":"0001209191-21-071542","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121071542/doc4.xml","form_type":"4"}},{"id":2457063,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON 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taxes."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with the consummation of the Company Merger (as defined below), at the Company Merger Effective Time (as defined below), each share of common stock, par value $0.01 per share (\"Company Common Stock\"), of CoreSite Realty Corporation (the \"Company\") that was outstanding immediately prior to the Company Merger Effective Time (other than certain shares specified in the Merger Agreement (as defined below)) was automatically converted into the right to receive $170.00 in cash (the \"Offer Price\"), without interest and subject to required withholding 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share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred sixty (160) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 19, 2022 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":23064,"derivative":{"underlying":"Common Stock","underlying_shares":171},"source":{"system":"sec-edgar","filing":"0001209191-21-069839","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121069839/doc4.xml","form_type":"4"}},{"id":2539288,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-10-19T16:51:30.000Z","date":"2021-10-15","kind":"grant","acquired":true,"shares":203,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred ninety (190) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 19, 2022 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22893,"derivative":{"underlying":"Common Stock","underlying_shares":203},"source":{"system":"sec-edgar","filing":"0001209191-21-060941","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121060941/doc4.xml","form_type":"4"}},{"id":2565370,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-09-17T16:34:38.000Z","date":"2021-09-17","kind":"sale","acquired":false,"shares":36052,"price":11.0412,"value":398057.3424,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the weighted average price of multiple transactions with prices between $11.03 and $11.10. The Reporting Person, upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, undertakes to provide further information regarding the number of securities purchased at each separate price."}],"balance_after":140458,"source":{"system":"sec-edgar","filing":"0001634117-21-000067","document":"wf-form4_163191085851463.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411721000067/wf-form4_163191085851463.xml","form_type":"4"}},{"id":2630526,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-07-19T18:17:51.000Z","date":"2021-07-15","kind":"grant","acquired":true,"shares":207,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred ninety three (193) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 19, 2022 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22690,"derivative":{"underlying":"Common Stock","underlying_shares":207},"source":{"system":"sec-edgar","filing":"0001209191-21-047234","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121047234/doc4.xml","form_type":"4"}},{"id":2703116,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-05-20T21:23:29.000Z","date":"2021-05-19","kind":"grant","acquired":true,"shares":1471,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSUs vest on the earlier of (a) May 19, 2022 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22483,"derivative":{"underlying":"Common Stock","underlying_shares":1471},"source":{"system":"sec-edgar","filing":"0001209191-21-034741","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121034741/doc4.xml","form_type":"4"}},{"id":2703115,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-05-20T21:23:29.000Z","date":"2021-05-18","kind":"exercise","acquired":false,"shares":1498,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vested in full on May 18, 2021."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":21012,"derivative":{"underlying":"Common Stock","underlying_shares":1498},"source":{"system":"sec-edgar","filing":"0001209191-21-034741","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121034741/doc4.xml","form_type":"4"}},{"id":2703114,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-05-20T21:23:29.000Z","date":"2021-05-18","kind":"exercise","acquired":true,"shares":1498,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":10258,"source":{"system":"sec-edgar","filing":"0001209191-21-034741","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121034741/doc4.xml","form_type":"4"}},{"id":2745081,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-04-19T16:58:20.000Z","date":"2021-04-15","kind":"grant","acquired":true,"shares":221,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Two hundred six (206) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 20, 2021 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22510,"derivative":{"underlying":"Common Stock","underlying_shares":221},"source":{"system":"sec-edgar","filing":"0001209191-21-027318","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121027318/doc4.xml","form_type":"4"}},{"id":2904300,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-01-19T18:12:10.000Z","date":"2021-01-15","kind":"grant","acquired":true,"shares":222,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Two hundred seven (207) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 20, 2021 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22289,"derivative":{"underlying":"Common Stock","underlying_shares":207},"source":{"system":"sec-edgar","filing":"0001209191-21-004090","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919121004090/doc4.xml","form_type":"4"}},{"id":2999931,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-10-26T16:50:04.000Z","date":"2020-10-23","kind":"grant","acquired":true,"shares":48781,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs). Each RSU represents the contingent right to receive one share of common stock, par value $0.01, of the Company. The RSUs vest on October 23, 2021; however, the reporting person has elected to defer settlement and receipt of such shares until the date specified in the applicable deferral election."}],"balance_after":176511,"source":{"system":"sec-edgar","filing":"0001634117-20-000138","document":"wf-form4_160374538819290.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411720000138/wf-form4_160374538819290.xml","form_type":"4"}},{"id":3004064,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-10-19T17:17:11.000Z","date":"2020-10-15","kind":"grant","acquired":true,"shares":210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred ninety-six (196) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 20, 2021 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":22067,"derivative":{"underlying":"Common Stock","underlying_shares":210},"source":{"system":"sec-edgar","filing":"0001209191-20-055313","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919120055313/doc4.xml","form_type":"4"}},{"id":3080448,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-07-17T19:26:48.000Z","date":"2020-07-15","kind":"grant","acquired":true,"shares":219,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Two hundred four (204) RSUs vested immediately with the remaining RSUs vesting on the earlier of (a) May 20, 2021 or (b) the day before the issuer's next annual meeting of stockholders. The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":21857,"derivative":{"underlying":"Common Stock","underlying_shares":219},"source":{"system":"sec-edgar","filing":"0001209191-20-042996","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919120042996/doc4.xml","form_type":"4"}},{"id":3137205,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-05-22T16:58:51.000Z","date":"2020-05-20","kind":"grant","acquired":true,"shares":1439,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vest on the earlier of (a) May 20, 2021 or (b) the day before the issuer's next annual meeting of stockholders.  The RSUs are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":21638,"derivative":{"underlying":"Common Stock","underlying_shares":1439},"source":{"system":"sec-edgar","filing":"0001209191-20-031791","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919120031791/doc4.xml","form_type":"4"}},{"id":3174064,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-04-17T17:50:42.000Z","date":"2020-04-15","kind":"grant","acquired":true,"shares":207,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred ninety one (191) RSUs vested immediately with the remaining RSUs vesting on May 16, 2020. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":20199,"derivative":{"underlying":"Common Stock","underlying_shares":207},"source":{"system":"sec-edgar","filing":"0001209191-20-024922","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919120024922/doc4.xml","form_type":"4"}},{"id":3307816,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-01-17T16:37:09.000Z","date":"2020-01-15","kind":"grant","acquired":true,"shares":209,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred ninety three (193) RSUs vested immediately with the remaining RSUs vesting on May 16, 2020. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":19992,"derivative":{"underlying":"Common Stock","underlying_shares":209},"source":{"system":"sec-edgar","filing":"0001209191-20-004026","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919120004026/doc4.xml","form_type":"4"}},{"id":3391932,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-10-17T18:19:59.000Z","date":"2019-10-15","kind":"grant","acquired":true,"shares":204,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred eighty eight (188) RSUs vested immediately with the remaining RSUs vesting on May 16, 2020. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":19783,"derivative":{"underlying":"Common Stock","underlying_shares":204},"source":{"system":"sec-edgar","filing":"0001209191-19-053490","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119053490/doc4.xml","form_type":"4"}},{"id":3404282,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-09-30T16:52:44.000Z","date":"2019-09-26","kind":"grant","acquired":true,"shares":38096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs). Each RSU represents the contingent right to receive one share of common stock, par value $0.01, of the Company. The RSUs vest on September 26, 2020; however, the reporting person has elected to defer settlement and receipt of such shares until the date specified in the applicable deferral election."}],"balance_after":127730,"source":{"system":"sec-edgar","filing":"0001634117-19-000113","document":"wf-form4_156987674213831.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411719000113/wf-form4_156987674213831.xml","form_type":"4"}},{"id":3459899,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-07-17T18:34:47.000Z","date":"2019-07-15","kind":"grant","acquired":true,"shares":201,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred eighty five (185) RSUs vested immediately with the remaining RSUs vesting on May 16, 2020. Pursuant to a deferral election\nmade by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer,\n(b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":19579,"derivative":{"underlying":"Common Stock","underlying_shares":201},"source":{"system":"sec-edgar","filing":"0001209191-19-042512","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119042512/doc4.xml","form_type":"4"}},{"id":3510274,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-05-28T16:43:02.000Z","date":"2019-05-23","kind":"exercise","acquired":false,"shares":1260,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vested in full on May 23, 2019."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":19378,"derivative":{"underlying":"Common Stock","underlying_shares":1260},"source":{"system":"sec-edgar","filing":"0001209191-19-033020","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119033020/doc4.xml","form_type":"4"}},{"id":3510273,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-28T16:43:02.000Z","date":"2019-05-23","kind":"exercise","acquired":true,"shares":1260,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":8760,"source":{"system":"sec-edgar","filing":"0001209191-19-033020","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119033020/doc4.xml","form_type":"4"}},{"id":3518508,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-05-20T16:43:55.000Z","date":"2019-05-16","kind":"grant","acquired":true,"shares":1502,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vest on May 16, 2020 and, pursuant to a deferral election made by the reporting person, are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":20638,"derivative":{"underlying":"Common Stock","underlying_shares":1502},"source":{"system":"sec-edgar","filing":"0001209191-19-031427","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119031427/doc4.xml","form_type":"4"}},{"id":3553783,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-04-17T16:27:48.000Z","date":"2019-04-15","kind":"grant","acquired":true,"shares":189,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred seventy seven (177) RSUs vest immediately, and pursuant to a deferral election made by the reporting person, such vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer. The remaining twelve (12) RSUs will vest on May 23, 2019 and are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":19136,"derivative":{"underlying":"Common Stock","underlying_shares":189},"source":{"system":"sec-edgar","filing":"0001209191-19-024987","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119024987/doc4.xml","form_type":"4"}},{"id":3693028,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2019-01-17T16:41:50.000Z","date":"2019-01-15","kind":"grant","acquired":true,"shares":221,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Two hundred six (206) RSUs vest immediately, and pursuant to a deferral election made by the reporting person, such vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer. The remaining fifteen (15) RSUs will vest on May 23, 2019 and are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":18947,"derivative":{"underlying":"Common Stock","underlying_shares":221},"source":{"system":"sec-edgar","filing":"0001209191-19-004224","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919119004224/doc4.xml","form_type":"4"}},{"id":3788337,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2018-10-17T16:41:12.000Z","date":"2018-10-15","kind":"grant","acquired":true,"shares":190,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred seventy-seven (177) RSUs vest immediately, and pursuant to a deferral election made by the reporting person, such vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer. The remaining thirteen (13) RSUs will vest on May 23, 2019 and are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":18726,"derivative":{"underlying":"Common Stock","underlying_shares":190},"source":{"system":"sec-edgar","filing":"0001209191-18-055319","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118055319/doc4.xml","form_type":"4"}},{"id":3806489,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-09-27T17:04:13.000Z","date":"2018-09-26","kind":"grant","acquired":true,"shares":21506,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs). Each RSU represents the contingent right to receive one share of common stock, par value $0.01, of the Company. The RSUs vest on September 26, 2019; however, the reporting person has elected to defer settlement and receipt of such shares until the date specified in the applicable deferral election."}],"balance_after":89634,"source":{"system":"sec-edgar","filing":"0001634117-18-000104","document":"wf-form4_153808223546231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411718000104/wf-form4_153808223546231.xml","form_type":"4"}},{"id":3865276,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2018-07-18T18:25:14.000Z","date":"2018-07-16","kind":"grant","acquired":true,"shares":167,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred fifty-six (156) RSUs vest immediately, and pursuant to a deferral election made by the reporting person, such vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer. The remaining eleven (11) RSUs will vest on May 23, 2019 and are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":18536,"derivative":{"underlying":"Common Stock","underlying_shares":167},"source":{"system":"sec-edgar","filing":"0001209191-18-043152","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118043152/doc4.xml","form_type":"4"}},{"id":3917026,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2018-05-25T16:21:41.000Z","date":"2018-05-23","kind":"grant","acquired":true,"shares":1209,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem dividend equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vest on May 23, 2019 and are payable upon vesting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":18369,"derivative":{"underlying":"Common Stock","underlying_shares":1209},"source":{"system":"sec-edgar","filing":"0001209191-18-033519","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118033519/doc4.xml","form_type":"4"}},{"id":3961045,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2018-04-18T19:30:10.000Z","date":"2018-04-16","kind":"grant","acquired":true,"shares":160,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred forty-eight (148) RSUs vest immediately with the remaining RSUs vesting on May 24, 2018. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":17160,"derivative":{"underlying":"Common Stock","underlying_shares":160},"source":{"system":"sec-edgar","filing":"0001209191-18-025468","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118025468/doc4.xml","form_type":"4"}},{"id":3992474,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2018-03-16T19:09:11.000Z","date":"2018-03-14","kind":"exercise","acquired":false,"shares":2500,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":15.98,"exercise_date":"2011-09-28","expiration_date":"2020-09-28","underlying":"Common Stock","underlying_shares":2500},"source":{"system":"sec-edgar","filing":"0001209191-18-020401","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118020401/doc4.xml","form_type":"4"}},{"id":3992473,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-16T19:09:11.000Z","date":"2018-03-14","kind":"exercise","acquired":true,"shares":2500,"price":15.98,"value":39950.0,"ownership":{"direct":true},"balance_after":7500,"source":{"system":"sec-edgar","filing":"0001209191-18-020401","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118020401/doc4.xml","form_type":"4"}},{"id":4096184,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2018-01-18T18:12:09.000Z","date":"2018-01-16","kind":"grant","acquired":true,"shares":154,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a\ntandem Dividend Equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly\ncash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market\nvalue of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred forty-three (143) RSUs vest immediately with the remaining RSUs vesting on May 24, 2018. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":17000,"derivative":{"underlying":"Common Stock","underlying_shares":154},"source":{"system":"sec-edgar","filing":"0001209191-18-004366","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919118004366/doc4.xml","form_type":"4"}},{"id":4183916,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-10-18T18:15:06.000Z","date":"2017-10-16","kind":"grant","acquired":true,"shares":135,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a\ntandem Dividend Equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly\ncash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market\nvalue of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred twenty-five (125) RSUs vest immediately with the remaining RSUs vesting on May 24, 2018. Pursuant to a deferral election made by\nthe reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the\nreporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":16846,"derivative":{"underlying":"Common Stock","underlying_shares":135},"source":{"system":"sec-edgar","filing":"0001209191-17-057331","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919117057331/doc4.xml","form_type":"4"}},{"id":4203034,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-09-22T16:50:20.000Z","date":"2017-09-20","kind":"grant","acquired":true,"shares":19704,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs). Each RSU represents the contingent right to receive one share of common stock, par value $0.01, of the Company. The RSUs vest on September 20, 2018; however, the reporting person has elected to defer settlement and receipt of such shares until the date specified in the applicable deferral election."}],"balance_after":68128,"source":{"system":"sec-edgar","filing":"0001634117-17-000174","document":"wf-form4_150611340621799.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411717000174/wf-form4_150611340621799.xml","form_type":"4"}},{"id":4254519,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-07-19T20:10:04.000Z","date":"2017-07-17","kind":"grant","acquired":true,"shares":143,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred thirty-three (133) RSUs vest immediately with the remaining RSUs vesting on May 24, 2018. Pursuant to a deferral election made\nby the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the\nreporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":16711,"derivative":{"underlying":"Common Stock","underlying_shares":143},"source":{"system":"sec-edgar","filing":"0001209191-17-045770","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919117045770/doc4.xml","form_type":"4"}},{"id":4302959,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-05-26T16:44:33.000Z","date":"2017-05-24","kind":"grant","acquired":true,"shares":1207,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent (\"DE\") for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vest on May 24, 2018 and, pursuant to a deferral election made by the reporting person, are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":16568,"derivative":{"underlying":"Common Stock","underlying_shares":1207},"source":{"system":"sec-edgar","filing":"0001209191-17-035876","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919117035876/doc4.xml","form_type":"4"}},{"id":4349736,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-04-19T21:27:13.000Z","date":"2017-04-17","kind":"grant","acquired":true,"shares":131,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent (\"DE\") for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred sixteen (116) RSUs vest immediately with the remaining RSUs vesting on May 19, 2017. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":15361,"derivative":{"underlying":"Common Stock","underlying_shares":131},"source":{"system":"sec-edgar","filing":"0001209191-17-027610","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919117027610/doc4.xml","form_type":"4"}},{"id":4486606,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-01-19T19:15:55.000Z","date":"2017-01-17","kind":"grant","acquired":true,"shares":144,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent (\"DE\") for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One hundred twenty-eight (128) RSUs vest immediately with the remaining RSUs vesting on May 19, 2017. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":15230,"derivative":{"underlying":"Common Stock","underlying_shares":144},"source":{"system":"sec-edgar","filing":"0001209191-17-004659","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919117004659/doc4.xml","form_type":"4"}},{"id":4577583,"issuer":{"id":131960,"kind":"organization","name":"CoreSite Realty Corp","symbol":"COR"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2016-10-19T21:19:22.000Z","date":"2016-10-17","kind":"grant","acquired":true,"shares":103,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents the right to receive one share of common stock of the issuer. The reporting person also holds a tandem Dividend Equivalent (\"DE\") for each RSU held, which gives the reporting person the right to receive, upon the payment of any ordinary quarterly cash dividend paid to holders of common stock of the issuer, an equivalent payment in the form of additional RSUs based on the fair market value of the issuer's common stock on the date of payment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Ninety-one (91) RSUs vest immediately with the remaining RSUs vesting on May 19, 2017. Pursuant to a deferral election made by the reporting person, vested RSUs are payable upon the earliest of (a) the reporting person's separation from service with the issuer, (b) the reporting person's death or (c) the date of a change in control of the issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs have no expiration date."}],"balance_after":15086,"derivative":{"underlying":"Common Stock","underlying_shares":103},"source":{"system":"sec-edgar","filing":"0001209191-16-146418","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1490892/000120919116146418/doc4.xml","form_type":"4"}},{"id":4598854,"issuer":{"id":5624,"kind":"organization","name":"Barnes & Noble Education, Inc.","symbol":"BNED"},"owners":[{"id":131962,"kind":"person","name":"WILSON DAVID A","position":1,"cik":"0001242919","reported_name":"WILSON DAVID A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-09-20T17:13:44.000Z","date":"2016-09-16","kind":"grant","acquired":true,"shares":12371,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs). Each RSU represents the contingent right to receive one share of common stock, par value $0.01, of the Company. The RSUs vest on September 16, 2017; however, the reporting person has elected to defer settlement and receipt of such shares until the date specified in the applicable deferral election."}],"balance_after":48424,"source":{"system":"sec-edgar","filing":"0001634117-16-000130","document":"wf-form4_147440601174331.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1242919/000163411716000130/wf-form4_147440601174331.xml","form_type":"4"}}]}