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Fifty percent of the award will be earned if the Issuer's average closing stock price is $30 per share for 40 consecutive trading days and an additional fifty percent will be earned if the average closing stock price is $40 per share for 40 consecutive trading days. 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Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price."}],"balance_after":488952,"source":{"system":"sec-edgar","filing":"0001209191-20-030601","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919120030601/doc4.xml","form_type":"4"}},{"id":3266049,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2020-02-18T17:00:44.000Z","date":"2020-02-14","kind":"sale","acquired":false,"shares":10332,"price":29.77,"value":307583.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares purchased ranging from $29.50 to $30.06 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price."}],"balance_after":492317,"source":{"system":"sec-edgar","filing":"0001209191-20-010241","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919120010241/doc4.xml","form_type":"4"}},{"id":3266048,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2020-02-18T17:00:44.000Z","date":"2020-02-14","kind":"sale","acquired":false,"shares":4668,"price":29.09,"value":135792.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares purchased ranging from $28.50 to $29.49 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price."}],"balance_after":502649,"source":{"system":"sec-edgar","filing":"0001209191-20-010241","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919120010241/doc4.xml","form_type":"4"}},{"id":3303752,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2020-01-23T16:48:21.000Z","date":"2020-01-22","kind":"sale","acquired":false,"shares":3,"price":22.01,"value":66.03,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":507317,"source":{"system":"sec-edgar","filing":"0001209191-20-004706","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919120004706/doc4.xml","form_type":"4"}},{"id":3303751,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2020-01-23T16:48:21.000Z","date":"2020-01-21","kind":"sale","acquired":false,"shares":14997,"price":22.01,"value":330083.97,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares purchased ranging from $22.00 to $22.12 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price."}],"balance_after":507320,"source":{"system":"sec-edgar","filing":"0001209191-20-004706","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919120004706/doc4.xml","form_type":"4"}},{"id":3365429,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2019-11-19T16:47:59.000Z","date":"2019-11-15","kind":"sale","acquired":false,"shares":7500,"price":15.92,"value":119400.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares purchased ranging from $15.46 to $16.10 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price."}],"balance_after":522317,"source":{"system":"sec-edgar","filing":"0001209191-19-057203","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919119057203/doc4.xml","form_type":"4"}},{"id":3376087,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Stock Option (right to buy)","published_at":"2019-11-08T16:32:36.000Z","date":"2019-11-06","kind":"grant","acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"One forty-eighth (1/48th) of the shares subject to the option shall vest on the one month anniversary of November 6, 2019 (the \"Vesting Commencement Date\"), and one forty-eighth (1/48th) of the shares shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to the Reporting Person continuing to have a Service Relationship (as defined in the Issuer's 2019 Equity Incentive Plan) with the Issuer through each such date."}],"balance_after":150000,"derivative":{"exercise_price":17.15,"expiration_date":"2029-11-05","underlying":"Common Stock","underlying_shares":150000},"source":{"system":"sec-edgar","filing":"0001209191-19-055827","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919119055827/doc4.xml","form_type":"4"}},{"id":3431755,"issuer":{"id":6051,"kind":"organization","name":"Alector, Inc.","symbol":"ALEC"},"owners":[{"id":123295,"kind":"person","name":"King Robert","position":1,"cik":"0001635264","reported_name":"King Robert","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"Common Stock","published_at":"2019-08-21T16:26:56.000Z","date":"2019-08-19","kind":"sale","acquired":false,"shares":7500,"price":15,"value":112500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":529817,"source":{"system":"sec-edgar","filing":"0001209191-19-046985","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1635264/000120919119046985/doc4.xml","form_type":"4"}}]}