Sec Form 4 Filing - SC US (TTGP), LTD. @ MongoDB, Inc. - 2019-04-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person SC US (TTGP), LTD. 2. Issuer Name and Ticker or Trading Symbol MongoDB, Inc. [ MDB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SEQUOIA CAPITAL, 2800 SAND HILL ROAD, SUITE 101 3. Date of Earliest Transaction (MM/DD/YY) 04/01/2019 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 04/01/2019 C 846,821 A $ 0 846,821 I By Sequoia Capital U.S. Growth Fund IV, L.P. ( 1 ) Class A Common Stock 04/01/2019 C 37,310 A $ 0 37,310 I By Sequoia Capital USGF Principals Fund IV, L.P. ( 1 ) Class A Common Stock 04/01/2019 C 744,271 A $ 0 744,271 I By Sequoia Capital U.S. Venture 2010 Fund, LP ( 2 ) Class A Common Stock 04/01/2019 C 81,790 A $ 0 81,790 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP ( 2 ) Class A Common Stock 04/01/2019 C 16,514 A $ 0 16,514 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP ( 2 ) Class A Common Stock 04/01/2019 J( 3 ) 846,821 D $ 0 0 I By Sequoia Capital U.S. Growth Fund IV, L.P. ( 1 ) Class A Common Stock 04/01/2019 J( 3 ) 37,310 D $ 0 0 I By Sequoia Capital USGF Principals Fund IV, L.P. ( 1 ) Class A Common Stock 04/01/2019 J( 3 ) 744,271 D $ 0 0 I By Sequoia Capital U.S. Venture 2010 Fund, LP ( 2 ) Class A Common Stock 04/01/2019 J( 3 ) 81,790 D $ 0 0 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP ( 2 ) Class A Common Stock 04/01/2019 J( 3 ) 16,514 D $ 0 0 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 4 ) 04/01/2019 C 846,821 ( 4 ) ( 4 ) Class A Common Stock 846,821 $ 0 2,540,461 I By Sequoia Capital U.S. Growth Fund IV, L.P. ( 1 ) Class B Common Stock ( 4 ) 04/01/2019 C 37,310 ( 4 ) ( 4 ) Class A Common Stock 37,310 $ 0 111,930 I By Sequoia Capital USGF Principals Fund IV, L.P. ( 1 ) Class B Common Stock ( 4 ) 04/01/2019 C 744,271 ( 4 ) ( 4 ) Class A Common Stock 744,271 $ 0 2,232,814 I By Sequoia Capital U.S. Venture 2010 Fund, LP ( 2 ) Class B Common Stock ( 4 ) 04/01/2019 C 81,790 ( 4 ) ( 4 ) Class A Common Stock 81,790 $ 0 245,368 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP ( 2 ) Class B Common Stock ( 4 ) 04/01/2019 C 16,514 ( 4 ) ( 4 ) Class A Common Stock 16,514 $ 0 49,543 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SC US (TTGP), LTD. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SC U.S. VENTURE 2010 MANAGEMENT, L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL U.S. VENTURE 2010 FUND, L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X Sequoia Capital U.S. Venture 2010 Partners Fund (Q), L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X Sequoia Capital U.S. Venture 2010 Partners Fund, L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SCGF IV MANAGEMENT LP 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL US GROWTH FUND IV LP C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X SEQUOIA CAPITAL USGF PRINCIPALS FUND IV LP C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK, CA94025 X Signatures /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P., the general partner of Sequoia Capital U.S. Venture 2010 Fund, LP. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P., the general partner of Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P., the general partner of Sequoia Capital U.S. Venture 2010 Partners Fund, LP. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SCGF IV Management, L.P. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SCGF IV Management, L.P., the general partner of Sequoia Capital U.S. Growth Fund IV, L.P. 04/03/2019 Signature of Reporting Person Date /s/ Jung Yeon Son, by power of attorney for Roelof Botha, a Director of SC US (TTGP), Ltd., the general partner of SCGF IV Management, L.P., the general partner of Sequoia Capital USGF Principals Fund IV, L.P. 04/03/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )SC US (TTGP), Ltd. is the general partner of SCGF IV Management, L.P., which is the general partner of Sequoia Capital U.S. Growth Fund IV, L.P. and Sequoia Capital USGF Principals Fund IV, L.P., or collectively, the SC GFIV Funds. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 2 )SC US (TTGP), Ltd. is the sole general partner of SC U.S. Venture 2010 Management, L.P., which is the sole general partner of each of Sequoia Capital U.S. Venture 2010 Fund, LP, Sequoia Capital U.S. Venture 2010 Partners Fund, LP and Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP, or collectively, the Venture 2010 Funds. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 3 )Represents a distribution of Class A Common Stock of the Issuer to partners or members and includes subsequent distributions by general partners or managing members to their respective partners or members. ( 4 )Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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