MongoDB, Inc. — Director's Dealing 2017

Oct 18, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: MongoDB, Inc. (MDB)
CIK: 0001441816
Period of Report: 2017-10-18

Reporting Person: McMahon John Dennis (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	0	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$		Class A Common Stock (10750)		Direct
Stock Option (Right to Buy)	$7.16	2026-10-05	Class B Common Stock (50000)		Direct
Restricted Stock Unit	$		Class A Common Stock (25000)		Direct

Footnotes

F1: 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. Upon the closing of the Issuer's sale of its Class A Common Stock in its firm commitment underwritten initial public offering pursuant to its registration statement on Form S-1 (File No. 333-220557) under the Securities Act of 1933, as amended, 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.

F2: All shares underlying this option are immediately exercisable, subject to a repurchase right in the Issuer's favor which lapses in accordance with the option's vesting schedule. 12,500 shares are vested. The remaining shares shall vest in 36 equal monthly installments beginning on November 5, 2017, subject to the Reporting Person providing continuous service to the Issuer on each such date.

F3: These shares are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of the Issuer and has no expiration date. The shares underlying this restricted stock award shall vest in full on June 6, 2018, subject to the Reporting Person providing continuous service to the Issuer on such date.