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Amount includes 342 shares acquired under the Issuer's employee stock purchase plan in October 2017 and 444 shares acquired under the Issuer's employee stock purchase plan in April 2018."}],"balance_after":16018,"source":{"system":"sec-edgar","filing":"0001209191-18-045374","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919118045374/doc4.xml","form_type":"4"}},{"id":3853506,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP, People and Culture"}}],"security":"Common Stock","published_at":"2018-08-03T18:01:19.000Z","date":"2018-08-01","kind":"exercise","acquired":true,"shares":2265,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Shares directly held by the Reporting Person. The Reporting Person also holds conditional rights to receive shares pursuant to previously disclosed Company equity awards. Amount includes 342 shares acquired under the Issuer's employee stock purchase plan in October 2017 and 444 shares acquired under the Issuer's employee stock purchase plan in April 2018."}],"balance_after":16801,"source":{"system":"sec-edgar","filing":"0001209191-18-045374","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919118045374/doc4.xml","form_type":"4"}},{"id":4243931,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"PRSUs","published_at":"2017-08-03T17:58:29.000Z","date":"2017-08-01","kind":"exercise","acquired":false,"shares":2265,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"Each performance restricted stock unit (\"PRSU\") represents the right to receive one share of the Issuer's common stock upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"This PRSU award was granted to the Reporting Person on August 1, 2015. In accordance with the terms of the PRSU award, the award vested as to 2,265 shares on each of August 1, 2016 and August 1, 2017 and will vest as to 2,265 shares on each of August 1, 2018 and August 1, 2019."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"This PRSU award was granted to the Reporting Person on August 1, 2015. In accordance with the terms of the PRSU award, the award vested as to 2,265 shares on each of August 1, 2016 and August 1, 2017 and will vest as to 2,265 shares on each of August 1, 2018 and August 1, 2019."}],"balance_after":4530,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2265},"source":{"system":"sec-edgar","filing":"0001209191-17-047485","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117047485/doc4.xml","form_type":"4"}},{"id":4243930,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"Common Stock","published_at":"2017-08-03T17:58:29.000Z","date":"2017-08-01","kind":"tax_withholding","acquired":false,"shares":851,"price":64.43,"value":54829.93,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Shares withheld by the Issuer to satisfy tax withholding obligations."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares directly held by the Reporting Person. The Reporting Person also holds conditional rights to receive shares pursuant to Issuer equity awards that have not yet vested."}],"balance_after":13750,"source":{"system":"sec-edgar","filing":"0001209191-17-047485","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117047485/doc4.xml","form_type":"4"}},{"id":4243929,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"Common Stock","published_at":"2017-08-03T17:58:29.000Z","date":"2017-08-01","kind":"exercise","acquired":true,"shares":2265,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares directly held by the Reporting Person. The Reporting Person also holds conditional rights to receive shares pursuant to Issuer equity awards that have not yet vested."}],"balance_after":14601,"source":{"system":"sec-edgar","filing":"0001209191-17-047485","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117047485/doc4.xml","form_type":"4"}},{"id":4243928,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"Common Stock","published_at":"2017-08-03T17:58:29.000Z","date":"2017-08-01","kind":"purchase","acquired":true,"shares":1611,"price":64.44,"value":103812.84,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Weighted average purchase price from purchase transactions ranging from $64.35 to $64.50. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares directly held by the Reporting Person. The Reporting Person also holds conditional rights to receive shares pursuant to Issuer equity awards that have not yet vested."}],"balance_after":12336,"source":{"system":"sec-edgar","filing":"0001209191-17-047485","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117047485/doc4.xml","form_type":"4"}},{"id":4243927,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"Common Stock","published_at":"2017-08-03T17:58:29.000Z","date":"2017-08-01","kind":"purchase","acquired":true,"shares":6239,"price":63.74,"value":397673.86,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Weighted average purchase price from purchase transactions ranging from $63.32 to $64.30. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares directly held by the Reporting Person. The Reporting Person also holds conditional rights to receive shares pursuant to Issuer equity awards that have not yet vested."}],"balance_after":10725,"source":{"system":"sec-edgar","filing":"0001209191-17-047485","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117047485/doc4.xml","form_type":"4"}},{"id":4457405,"issuer":{"id":110002,"kind":"organization","name":"NUVASIVE INC","symbol":"NUVA"},"owners":[{"id":77462,"kind":"person","name":"Leddy Peter Michael","position":1,"cik":"0001332202","reported_name":"Leddy Peter Michael","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Global HR"}}],"security":"PRSUs","published_at":"2017-02-10T17:49:29.000Z","date":"2017-02-08","kind":"grant","acquired":true,"shares":13203,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Each performance restricted stock unit (\"PRSU\") represents the right to receive one share of the Issuer's common stock upon vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This PRSU award was granted to the Reporting Person on March 1, 2016. On February 8, 2017, the Compensation Committee of the Issuer's Board of Directors certified that the PRSU award's performance condition had been satisfied. In accordance with the terms of the PRSU award, the award will vest in full on March 1, 2019. As the PRSU award did not constitute a derivative security, it was not required to be reported and was not reported on a Form 4 at the time of grant."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"This PRSU award was granted to the Reporting Person on March 1, 2016. On February 8, 2017, the Compensation Committee of the Issuer's Board of Directors certified that the PRSU award's performance condition had been satisfied. In accordance with the terms of the PRSU award, the award will vest in full on March 1, 2019. As the PRSU award did not constitute a derivative security, it was not required to be reported and was not reported on a Form 4 at the time of grant."}],"balance_after":13203,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":13203},"source":{"system":"sec-edgar","filing":"0001209191-17-009681","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1142596/000120919117009681/doc4.xml","form_type":"4"}}]}