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(\"Flybridge Capital\"). Flybridge Capital Partners G.P. III, L.L.C. (\"Flybridge LLC\") is the general partner of Flybridge Capital. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang (collectively, the \"Managing Members\") and they share voting and dispositive power over the shares held by Flybridge Capital. Mr. Hazard is also a director of the Issuer. Flybridge LLC and each of the Managing Members disclaims beneficial ownership of the securities held by Flybridge Capital except to the extent of their respective pecuniary interests therein, and the inclusion of these securities in this report shall not be deemed an admission by any of them of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-18-010441","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000089924318010441/doc4.xml","form_type":"4"}},{"id":3960145,"issuer":{"id":3107,"kind":"organization","name":"MongoDB, Inc.","symbol":"MDB"},"owners":[{"id":163603,"kind":"organization","name":"Flybridge Capital Partners GP III, LLC","position":1,"cik":"0001719721","reported_name":"Flybridge Capital Partners GP III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163604,"kind":"organization","name":"FLYBRIDGE CAPITAL PARTNERS III LP","position":2,"cik":"0001430896","reported_name":"FLYBRIDGE CAPITAL PARTNERS III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163605,"kind":"organization","name":"FLYBRIDGE NETWORK FUND III LP","position":3,"cik":"0001445399","reported_name":"FLYBRIDGE NETWORK FUND III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163606,"kind":"person","name":"Aronoff David B","position":4,"cik":"0001339224","reported_name":"Aronoff David B","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163607,"kind":"person","name":"Bussgang Jeffrey J.","position":5,"cik":"0001719574","reported_name":"Bussgang Jeffrey J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2018-04-19T21:38:36.000Z","date":"2018-04-17","kind":"exercise","acquired":true,"shares":1500000,"ownership":{"direct":false,"nature":"By Flybridge Capital Partners III, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of: (i) any transfer, whether or not for value, except for certain \"Permitted Transfers\" as defined in the Issuer's restated certificate of incorporation, and (ii) at such time as the outstanding shares of Class B common stock represent less than 10% of the aggregate number of shares of the Issuer's capital stock outstanding."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are owned directly by Flybridge Capital Partners III, L.P. (\"Flybridge Capital\"). Flybridge Capital Partners G.P. III, L.L.C. (\"Flybridge LLC\") is the general partner of Flybridge Capital. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang (collectively, the \"Managing Members\") and they share voting and dispositive power over the shares held by Flybridge Capital. Mr. Hazard is also a director of the Issuer. Flybridge LLC and each of the Managing Members disclaims beneficial ownership of the securities held by Flybridge Capital except to the extent of their respective pecuniary interests therein, and the inclusion of these securities in this report shall not be deemed an admission by any of them of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes."}],"balance_after":1500000,"source":{"system":"sec-edgar","filing":"0000899243-18-010441","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000089924318010441/doc4.xml","form_type":"4"}},{"id":4181275,"issuer":{"id":3107,"kind":"organization","name":"MongoDB, Inc.","symbol":"MDB"},"owners":[{"id":163604,"kind":"organization","name":"FLYBRIDGE CAPITAL PARTNERS III LP","position":1,"cik":"0001430896","reported_name":"FLYBRIDGE CAPITAL PARTNERS III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163603,"kind":"organization","name":"Flybridge Capital Partners GP III, LLC","position":2,"cik":"0001719721","reported_name":"Flybridge Capital Partners GP III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163606,"kind":"person","name":"Aronoff David B","position":3,"cik":"0001339224","reported_name":"Aronoff David B","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163607,"kind":"person","name":"Bussgang Jeffrey J.","position":4,"cik":"0001719574","reported_name":"Bussgang Jeffrey J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-10-24T22:14:22.000Z","date":"2017-10-23","kind":"exercise","acquired":true,"shares":4734340,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of: (i) any transfer, whether or not for value, except for certain \"Permitted Transfers\" as defined in the Issuer's restated certificate of incorporation, and (ii) at such time as the outstanding shares of Class B common stock represent less than 10% of the aggregate number of shares of the Issuer's capital stock outstanding."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of: (i) any transfer, whether or not for value, except for certain \"Permitted Transfers\" as defined in the Issuer's restated certificate of incorporation, and (ii) at such time as the outstanding shares of Class B common stock represent less than 10% of the aggregate number of shares of the Issuer's capital stock outstanding."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of: (i) any transfer, whether or not for value, except for certain \"Permitted Transfers\" as defined in the Issuer's restated certificate of incorporation, and (ii) at such time as the outstanding shares of Class B common stock represent less than 10% of the aggregate number of shares of the Issuer's capital stock outstanding."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The Class B Common Stock will convert automatically into Class A Common Stock on the same basis upon the earlier of: (i) any transfer, whether or not for value, except for certain \"Permitted Transfers\" as defined in the Issuer's restated certificate of incorporation, and (ii) at such time as the outstanding shares of Class B common stock represent less than 10% of the aggregate number of shares of the Issuer's capital stock outstanding."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F8","text":"4,723,379 of these shares are owned by Flybridge Capital and 10,961 of these shares are owned by Flybridge Network."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"4,723,379 of these shares are owned by Flybridge Capital and 10,961 of these shares are owned by Flybridge Network."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are owned directly by each of Flybridge Capital and Flybridge Network. Flybridge Capital Partners GP III, LLC (\"Flybridge LLC\") is the general partner of Flybridge Capital and Flybridge Network. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang and they share voting and dispositive power over the shares held by Flybridge Capital and Flybridge Network. 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Flybridge Capital Partners GP III, LLC (\"Flybridge LLC\") is the general partner of Flybridge Capital and Flybridge Network. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang and they share voting and dispositive power over the shares held by Flybridge Capital and Flybridge Network. Mr. Hazard is also a director of the Issuer."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":3572},"source":{"system":"sec-edgar","filing":"0001209191-17-057882","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000120919117057882/doc4.xml","form_type":"4"}},{"id":4181273,"issuer":{"id":3107,"kind":"organization","name":"MongoDB, Inc.","symbol":"MDB"},"owners":[{"id":163604,"kind":"organization","name":"FLYBRIDGE CAPITAL PARTNERS III LP","position":1,"cik":"0001430896","reported_name":"FLYBRIDGE CAPITAL PARTNERS III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163603,"kind":"organization","name":"Flybridge Capital Partners GP III, LLC","position":2,"cik":"0001719721","reported_name":"Flybridge Capital Partners GP III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163606,"kind":"person","name":"Aronoff David B","position":3,"cik":"0001339224","reported_name":"Aronoff David B","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163607,"kind":"person","name":"Bussgang Jeffrey J.","position":4,"cik":"0001719574","reported_name":"Bussgang Jeffrey J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D Preferred Stock","published_at":"2017-10-24T22:14:22.000Z","date":"2017-10-23","kind":"exercise","acquired":false,"shares":605190,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F5","text":"452,986 of these shares are owned by Flybridge Capital and 906 of these shares are owned by Flybridge Network."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are owned directly by each of Flybridge Capital and Flybridge Network. Flybridge Capital Partners GP III, LLC (\"Flybridge LLC\") is the general partner of Flybridge Capital and Flybridge Network. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang and they share voting and dispositive power over the shares held by Flybridge Capital and Flybridge Network. Mr. Hazard is also a director of the Issuer."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":453892},"source":{"system":"sec-edgar","filing":"0001209191-17-057882","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000120919117057882/doc4.xml","form_type":"4"}},{"id":4181272,"issuer":{"id":3107,"kind":"organization","name":"MongoDB, Inc.","symbol":"MDB"},"owners":[{"id":163604,"kind":"organization","name":"FLYBRIDGE CAPITAL PARTNERS III LP","position":1,"cik":"0001430896","reported_name":"FLYBRIDGE CAPITAL PARTNERS III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163603,"kind":"organization","name":"Flybridge Capital Partners GP III, LLC","position":2,"cik":"0001719721","reported_name":"Flybridge Capital Partners GP III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163606,"kind":"person","name":"Aronoff David B","position":3,"cik":"0001339224","reported_name":"Aronoff David B","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163607,"kind":"person","name":"Bussgang Jeffrey J.","position":4,"cik":"0001719574","reported_name":"Bussgang Jeffrey J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Preferred Stock","published_at":"2017-10-24T22:14:22.000Z","date":"2017-10-23","kind":"exercise","acquired":false,"shares":612606,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"458,570 of these shares are owned by Flybridge Capital and 884 of these shares are owned by Flybridge Network."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are owned directly by each of Flybridge Capital and Flybridge Network. Flybridge Capital Partners GP III, LLC (\"Flybridge LLC\") is the general partner of Flybridge Capital and Flybridge Network. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang and they share voting and dispositive power over the shares held by Flybridge Capital and Flybridge Network. Mr. Hazard is also a director of the Issuer."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":459454},"source":{"system":"sec-edgar","filing":"0001209191-17-057882","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000120919117057882/doc4.xml","form_type":"4"}},{"id":4181271,"issuer":{"id":3107,"kind":"organization","name":"MongoDB, Inc.","symbol":"MDB"},"owners":[{"id":163604,"kind":"organization","name":"FLYBRIDGE CAPITAL PARTNERS III LP","position":1,"cik":"0001430896","reported_name":"FLYBRIDGE CAPITAL PARTNERS III LP","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163603,"kind":"organization","name":"Flybridge Capital Partners GP III, LLC","position":2,"cik":"0001719721","reported_name":"Flybridge Capital Partners GP III, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163606,"kind":"person","name":"Aronoff David B","position":3,"cik":"0001339224","reported_name":"Aronoff David B","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":163607,"kind":"person","name":"Bussgang Jeffrey J.","position":4,"cik":"0001719574","reported_name":"Bussgang Jeffrey J.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B Preferred Stock","published_at":"2017-10-24T22:14:22.000Z","date":"2017-10-23","kind":"exercise","acquired":false,"shares":5089898,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock automatically converted into approximately 0.75 shares of Class B Common Stock immediately prior to the closing of the Issuer's initial public offering and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"3,808,261 of these shares are owned by Flybridge Capital Partners III, L.P. (\"Flybridge Capital\") and 9,161 of these shares are owned by Flybridge Network Fund III, L.P. (\"Flybridge Network\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are owned directly by each of Flybridge Capital and Flybridge Network. Flybridge Capital Partners GP III, LLC (\"Flybridge LLC\") is the general partner of Flybridge Capital and Flybridge Network. The managing members of Flybridge LLC are Charles M. Hazard, Jr., David B. Aronoff and Jeffrey J. Bussgang and they share voting and dispositive power over the shares held by Flybridge Capital and Flybridge Network. Mr. Hazard is also a director of the Issuer."}],"balance_after":0,"derivative":{"underlying":"Class B Common Stock","underlying_shares":3817422},"source":{"system":"sec-edgar","filing":"0001209191-17-057882","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441816/000120919117057882/doc4.xml","form_type":"4"}}]}