Changes in Beneficial Ownership · 4

MongoDB, Inc.

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Changes in Beneficial Ownership

Filed Nov 4, 2026Accepted Nov 4, 2026, 4:44 PM ESTFiling CIK 1441816Accession 0001628280-26-070237

wk-form4_1793828677.xml

Name: Hazard Charles M Jr
Reporting owner CIK: 0001339247
Relationship: Director
Address: C/O FLYBRIDGE CAPITAL PARTNERS, 855 BOYLSTON ST, SUITE 1000, BOSTON, MA, 02116

Non-derivative transactions · 1 reported row
Security	Transaction date	Code	Amount	A / D	Price (USD)	Owned after	Ownership
Common Stock	2026-11-02	S · Form 4^[F1]	595	D	350.46	44,642	D

Table key

Non-derivative holdings · 2 reported rows
Security	Amount owned	Ownership	Nature of ownership
Common Stock	13,995	I	By Trust^[F2]
Common Stock	17,500	I	By Limited Partnership^[F3]

Table key

F1: The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.↩ 1
F2: These shares are held by The Narragansett Bay Childrens Trust (the "Trust"). The Reporting Person is the Trustee of the Trust and, as such, has the power to vote and dispose of the shares held by the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.↩ 1
F3: The reporting person was appointed as the manager and general partner of a family limited partnership that owns the reported securities. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.↩ 1