X0609 4 2026-06-16 0 0001441816 MongoDB, Inc. MDB 0001269088 BERRY MICHAEL J false C/O MONGODB, INC. 1633 BROADWAY, 38TH FLOOR NEW YORK NY 10019 0 1 0 0 Chief Financial Officer 1 Common Stock 2026-06-16 4 S 0 198 345.42 D 6302 I By Trust Common Stock 2026-06-16 4 S 0 309 346.19 D 5993 I By Trust Common Stock 2026-06-16 4 S 0 223 347.55 D 5770 I By Trust Common Stock 2026-06-16 4 S 0 650 348.74 D 5120 I By Trust Common Stock 2026-06-16 4 S 0 899 349.59 D 4221 I By Trust Common Stock 2026-06-16 4 S 0 1142 350.62 D 3079 I By Trust Common Stock 2026-06-16 4 S 0 477 351.51 D 2602 I By Trust Common Stock 2026-06-16 4 S 0 98 352.51 D 2504 I By Trust Common Stock 2026-06-16 4 S 0 252 353.85 D 2252 I By Trust Common Stock 2026-06-16 4 S 0 127 354.84 D 2125 I By Trust Common Stock 2026-06-16 4 S 0 85 355.65 D 2040 I By Trust Common Stock 2026-06-16 4 S 0 48 356.65 D 1992 I By Trust Common Stock 2026-06-16 4 S 0 108 357.91 D 1884 I By Trust Common Stock 2026-06-16 4 S 0 113 359.35 D 1771 I By Trust Common Stock 2026-06-16 4 S 0 29 360.67 D 1742 I By Trust Common Stock 2026-06-16 4 S 0 105 362.22 D 1637 I By Trust Common Stock 2026-06-16 4 S 0 134 363.07 D 1503 I By Trust Common Stock 2026-06-16 4 S 0 3 363.87 D 1500 I By Trust Common Stock 84820 D The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $344.80 to $345.78, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. These shares are held by The Berry Family Trust, a revocable trust of which the Reporting Person is a trustee. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $345.82 to $346.77, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $347.09 to $348.03, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $348.11 to $349.10, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $349.11 to $350.10, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $350.12 to $351.11, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $351.12 to $352.03, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $352.18 to $353.11, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $353.24 to $354.16, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $354.31 to $355.23, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $355.33 to $356.00, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $356.04 to $357.00, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $357.25 to $358.13, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $358.89 to $359.70, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $360.49 to $361.00, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $361.70 to $362.59, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $362.71 to $363.38, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. /s/ Gahee Lee, Attorney in Fact 2026-06-18