MongoDB, Inc.

Item 7.01. Regulation FD Disclosure On September 29, 2026, MongoDB, Inc. (the “Company”) hosted an Investor Day accessible via webcast during which members of the leadership team discussed the Company’s strategies to drive sustainable growth and deliver long-term shareholder value. A copy of the presentation materials that were used by members of the Company’s leadership team and includes information regarding the matters addressed by the Company at Investor Day is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated into this Item 7.01 of this Current Report on Form 8-K by reference. The information in this Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as shall be expressly set forth by the specific reference in such filing.

Item 8.01. Other Events. On September 25, 2026, the Company’s Board of Directors authorized an additional $1.0 billion in repurchases under the Company’s existing share repurchase program, bringing the aggregate authorized repurchase amount to $2.0 billion, of which $1,353,700,000 remains available for future repurchases as of the date of this filing. Repurchases of the Company's common stock may be made from time to time, either through open market transactions or in privately negotiated transactions. The timing of the repurchases will depend on certain factors, including but not limited to, market conditions and prices and management’s discretion. The repurchases may be suspended, terminated or modified at any time for any reason, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. These factors may also affect the timing and amount of share repurchases. The Company is not obligated to purchase any dollar amount or particular number of shares.