{"transactions":[{"id":2657320,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Options (right to buy)","published_at":"2021-06-23T22:35:46.000Z","date":"2021-06-17","kind":"grant","acquired":true,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Shares subject to the stock options vest on the earlier of (i) June 17, 2021 or (ii) the day prior to the date of the Issuer's next annual meeting of stockholders."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The stock options reported on this Form 4 were awarded to David Singer, in connection with his membership on the board of directors of the Issuer. Mr. Singer and Lee S. Ainslie III are Managing Partners of Maverick Capital Ventures, LLC (\"Maverick Ventures\"), the general partner of Maverick Ventures Investment Fund, L.P. and Maverick Advisors Fund, L.P. Pursuant to the policies of Maverick Ventures, Mr. Singer holds the reported stock options for the benefit of clients of Maverick Capital, Ltd. and its affiliates. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer except to the extent of any pecuniary interest therein."}],"balance_after":15000,"derivative":{"exercise_price":33.74,"expiration_date":"2031-06-17","underlying":"Class A Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001062993-21-005889","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000106299321005889/form4.xml","form_type":"4"}},{"id":2948754,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2020-12-12T02:28:55.000Z","date":"2020-12-03","kind":"other","acquired":true,"shares":37383,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reported stock option was granted to David Singer, a director of the Issuer, and a Managing Partner of Maverick Capital Ventures, LLC (Maverick Ventures), the general partner of Maverick Ventures Investment Fund, L.P. and Maverick Advisors Fund, L.P. (the Maverick Venture Funds). Mr. Singer is deemed to hold the reported stock option for the benefit of Maverick Ventures and may exercise the stock option solely upon the direction of Maverick Ventures, which entity is entitled to the shares of Class A Common Stock issued upon exercise. Maverick Ventures, Maverick Venture Funds and Lee S. Ainslie III, a Managing Partner of Maverick Ventures, may be deemed the indirect beneficial owners of this stock option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Shares subject to the option vest in 36 equal monthly installments beginning on January 3, 2021."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The reported stock option was granted to David Singer, a director of the Issuer, and a Managing Partner of Maverick Capital Ventures, LLC (Maverick Ventures), the general partner of Maverick Ventures Investment Fund, L.P. and Maverick Advisors Fund, L.P. (the Maverick Venture Funds). Mr. Singer is deemed to hold the reported stock option for the benefit of Maverick Ventures and may exercise the stock option solely upon the direction of Maverick Ventures, which entity is entitled to the shares of Class A Common Stock issued upon exercise. Maverick Ventures, Maverick Venture Funds and Lee S. Ainslie III, a Managing Partner of Maverick Ventures, may be deemed the indirect beneficial owners of this stock option."}],"balance_after":37383,"derivative":{"exercise_price":19,"expiration_date":"2020-12-03","underlying":"Class A Common Stock","underlying_shares":37383},"source":{"system":"sec-edgar","filing":"0001628280-20-017435","document":"wf-form4_160774011652377.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017435/wf-form4_160774011652377.xml","form_type":"4"}},{"id":2950213,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D-1 Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":131627,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":131627},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950212,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":179192,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":179192},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950211,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":145780,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":145780},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950210,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":700762,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":700762},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950209,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":777593,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":777593},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950208,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D-1 Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":242204,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":242204},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950207,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":326269,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":326269},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950206,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":265434,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":265434},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950205,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":1275928,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1275928},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950204,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Convertible Preferred Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":false,"shares":1280724,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1280724},"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950203,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":true,"shares":1934954,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"The reported shares are held of record by Maverick Advisors Fund, L.P. (\"Maverick Advisors\"). Maverick Ventures is the general partner of Maverick Advisors. As the Managing  Partners of Maverick Ventures, Messrs. Ainslie and Singer share voting and dispositive power with respect to the shares held by Maverick Advisors. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":1934954,"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}},{"id":2950202,"issuer":{"id":6717,"kind":"organization","name":"Seer, Inc.","symbol":"SEER"},"owners":[{"id":137961,"kind":"person","name":"Maverick Capital Ventures, LLC","position":1,"cik":"0001632173","reported_name":"Maverick Capital Ventures, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137962,"kind":"person","name":"Maverick Ventures Investment Fund, L.P.","position":2,"cik":"0001632191","reported_name":"Maverick Ventures Investment Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":137963,"kind":"person","name":"Maverick Advisors Fund, L.P.","position":3,"cik":"0001632167","reported_name":"Maverick Advisors Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":21014,"kind":"person","name":"AINSLIE LEE S III","position":4,"cik":"0001286654","reported_name":"AINSLIE LEE S III","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-12-10T21:18:55.000Z","date":"2020-12-08","kind":"exercise","acquired":true,"shares":3390559,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series A Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each share of Series B Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Series C Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Each share of Series D Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Each share of Series D-1 Convertible Preferred Stock automatically converted into Class A Common Stock on a one-to-one basis immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock and had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"The reported shares are held of record by Maverick Ventures Investment Fund, L.P. (\"Maverick Ventures Fund\"). Maverick Capital Ventures, LLC (Maverick Ventures) is the general partner of Maverick Ventures Fund. As the Managing Partners of Maverick Ventures, Lee S. Ainslie III and David B. Singer, a director of the Issuer, share voting and dispositive power with respect to the shares held by Maverick Ventures Fund. The reporting entities and individuals disclaim beneficial ownership of the reported securities of the Issuer held of record by Maverick Ventures Fund except to the extent of any pecuniary interest therein."}],"balance_after":3390559,"source":{"system":"sec-edgar","filing":"0001628280-20-017352","document":"wf-form4_160763512232981.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1726445/000162828020017352/wf-form4_160763512232981.xml","form_type":"4"}}]}