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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 4 to this Form 4."}],"balance_after":114768,"source":{"system":"sec-edgar","filing":"0001209191-16-145134","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116145134/doc4.xml","form_type":"4"}},{"id":4584267,"issuer":{"id":154258,"kind":"organization","name":"ALDER BIOPHARMACEUTICALS INC","symbol":"ALDR"},"owners":[{"id":93419,"kind":"person","name":"Schatzman Randall C","position":1,"cik":"0001604763","reported_name":"Schatzman Randall C","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2016-10-05T18:54:32.000Z","date":"2016-10-03","kind":"sale","acquired":false,"shares":5481,"price":30.9472,"value":169621.6032,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 4, 2015."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.35 to $31.33, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 3 to this Form 4."}],"balance_after":117468,"source":{"system":"sec-edgar","filing":"0001209191-16-145134","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116145134/doc4.xml","form_type":"4"}},{"id":4584266,"issuer":{"id":154258,"kind":"organization","name":"ALDER BIOPHARMACEUTICALS INC","symbol":"ALDR"},"owners":[{"id":93419,"kind":"person","name":"Schatzman Randall C","position":1,"cik":"0001604763","reported_name":"Schatzman Randall C","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2016-10-05T18:54:32.000Z","date":"2016-10-03","kind":"exercise","acquired":true,"shares":8181,"price":1.265,"value":10348.965,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The stock option exercise reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 4, 2015."}],"balance_after":122949,"source":{"system":"sec-edgar","filing":"0001209191-16-145134","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116145134/doc4.xml","form_type":"4"}},{"id":4611012,"issuer":{"id":154258,"kind":"organization","name":"ALDER BIOPHARMACEUTICALS INC","symbol":"ALDR"},"owners":[{"id":93419,"kind":"person","name":"Schatzman Randall C","position":1,"cik":"0001604763","reported_name":"Schatzman Randall C","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Stock Option (Right to Buy)","published_at":"2016-09-06T18:36:22.000Z","date":"2016-09-01","kind":"exercise","acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option is fully vested."}],"balance_after":8181,"derivative":{"exercise_price":1.265,"expiration_date":"2017-11-13","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001209191-16-140250","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116140250/doc4.xml","form_type":"4"}},{"id":4611011,"issuer":{"id":154258,"kind":"organization","name":"ALDER BIOPHARMACEUTICALS INC","symbol":"ALDR"},"owners":[{"id":93419,"kind":"person","name":"Schatzman Randall C","position":1,"cik":"0001604763","reported_name":"Schatzman Randall C","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2016-09-06T18:36:22.000Z","date":"2016-09-01","kind":"sale","acquired":false,"shares":10000,"price":32.482,"value":324820.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 4, 2015."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $32.09 to $33.09, inclusive.  The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 3 to this Form 4."}],"balance_after":114768,"source":{"system":"sec-edgar","filing":"0001209191-16-140250","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116140250/doc4.xml","form_type":"4"}},{"id":4611010,"issuer":{"id":154258,"kind":"organization","name":"ALDER BIOPHARMACEUTICALS INC","symbol":"ALDR"},"owners":[{"id":93419,"kind":"person","name":"Schatzman Randall C","position":1,"cik":"0001604763","reported_name":"Schatzman Randall C","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2016-09-06T18:36:22.000Z","date":"2016-09-01","kind":"exercise","acquired":true,"shares":10000,"price":1.265,"value":12650.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The exercise of options reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 4, 2015."}],"balance_after":124768,"source":{"system":"sec-edgar","filing":"0001209191-16-140250","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1423824/000120919116140250/doc4.xml","form_type":"4"}}]}