MongoDB, Inc.
US ˙ NasdaqGM ˙ US60937P1066

SecurityMDB / MongoDB, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership1,844,118 shares
Latest Disclosed Value $ 451,384,763
State Street Corp reports 2.63% increase in ownership of MDB / MongoDB, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,844,118 shares of MongoDB, Inc. (US:MDB) valued at $451,384,763 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,796,847 shares of MongoDB, Inc.. This represents a change in shares of 2.63% during the quarter. The current value of the position is $700,831,228 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MONGODB CL A 60937P106 1,844,118 47,271 2.63 451,385 -40.14 0.0156
2026-02-13 2025-12-31 13F MONGODB CL A 60937P106 1,796,847 40,219 2.29 754,119 38.31 0.0253
2025-11-14 2025-09-30 13F MONGODB CL A 60937P106 1,756,628 63,434 3.75 545,222 53.34 0.0189
2025-08-14 2025-06-30 13F MONGODB CL A 60937P106 1,693,194 80,334 4.98 355,554 25.68 0.0133
2025-05-15 2025-03-31 13F MONGODB CL A 60937P106 1,612,860 1,139 0.07 282,896 -24.61 0.0117
2025-02-14 2024-12-31 13F MONGODB CL A 60937P106 1,611,721 35,895 2.28 375,247 -11.92 0.0148
2024-11-14 2024-09-30 13F MONGODB CL A 60937P106 1,575,826 36,212 2.35 426,025 10.70 0.0173
2024-08-14 2024-06-30 13F MONGODB CL A 60937P106 1,539,614 33,776 2.24 384,842 -28.74 0.0168
2024-05-15 2024-03-31 13F MONGODB CL A 60937P106 1,505,838 21,402 1.44 540,054 -11.02 0.0241
2024-02-14 2023-12-31 13F MONGODB CL A 60937P106 1,484,436 87,953 6.30 606,912 25.66 0.0295
2023-11-14 2023-09-30 13F MONGODB CL A 60937P106 1,396,483 26,830 1.96 482,988 -14.20 0.0268
2023-08-14 2023-06-30 13F MONGODB CL A 60937P106 1,369,653 -17,120 -1.23 562,914 74.13 0.0296
2023-05-15 2023-03-31 13F MONGODB CL A 60937P106 1,386,773 24,595 1.81 323,280 20.57 0.0182
2023-05-15 2022-12-31 13F/A-99 MONGODB CL A 60937P106 1,362,178 12,918 0.96 268,131 0.08 0.0158
2023-05-15 2022-12-31 13F MONGODB CL A 60937P106 1,362,178 12,918 268,131 0.0158
2022-11-15 2022-09-30 13F MONGODB CL A 60937P106 1,349,260 23,846 1.80 267,909 -22.11 0.0169
2022-08-15 2022-06-30 13F MONGODB CL A 60937P106 1,325,414 -18,243 -1.36 343,945 -42.29 0.0206
2022-05-16 2022-03-31 13F MONGODB CL A 60937P106 1,343,657 7,389 0.55 596,033 -15.74 0.0295
2022-02-14 2021-12-31 13F MONGODB CL A 60937P106 1,336,268 37,116 2.86 707,353 15.47 0.0335
2021-11-15 2021-09-30 13F MONGODB CL A 60937P106 1,299,152 104,405 8.74 612,563 41.82 0.0324
2021-08-16 2021-06-30 13F MONGODB CL A 60937P106 1,194,747 169,240 16.50 431,925 57.49 0.0228
2021-07-09 2021-03-31 13F/A-1 MONGODB CL A 60937P106 1,025,507 70,331 7.36 274,251 -20.03 0.0157
2021-05-17 2021-03-31 13F MONGODB CL A 60937P106 1,025,507 70,331 274,251 0.0157
2021-02-16 2020-12-31 13F MONGODB CL A 60937P106 955,176 -22,491 -2.30 342,946 51.52 0.0210
2020-11-10 2020-09-30 13F MONGODB CL A 60937P106 977,667 80,958 9.03 226,340 11.52 0.0155
2020-08-14 2020-06-30 13F MONGODB CL A 60937P106 896,709 297 0.03 202,961 65.82 0.0148
2020-06-19 2020-03-31 13F/A-1 MONGODB CL A 60937P106 896,412 32,640 3.78 122,396 7.67 0.0107
2020-05-11 2020-03-31 13F MONGODB CL A 60937P106 896,412 32,640 122,396 10,748.8333
2020-02-06 2019-12-31 13F MONGODB CL A 60937P106 863,772 43,629 5.32 113,681 15.05 0.0078
2019-11-14 2019-09-30 13F MONGODB CL A 60937P106 820,143 233,171 39.72 98,811 10.68 0.0074
2019-08-14 2019-06-30 13F MONGODB CL A 60937P106 586,972 526,245 866.57 89,273 899.92 0.0067
2019-05-15 2019-03-31 13F MONGODB CL A 60937P106 60,727 2,556 4.39 8,928 83.29 0.0007
2019-02-12 2018-12-31 13F MONGODB CL A 60937P106 58,171 13,219 29.41 4,871 32.87 0.0004
2018-11-09 2018-09-30 13F MONGODB Common equity shares 60937P106 44,952 10,981 32.32 3,666 117.57 0.0003
2018-08-14 2018-06-30 13F MONGODB Common equity shares 60937P106 33,971 26,371 346.99 1,685 410.61 0.0001
2018-05-15 2018-03-31 13F MONGODB Common equity shares 60937P106 7,600 7,600 330 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.