Datadog, Inc.
MX ˙ BMV ˙ US23804L1035
SecurityMX:DDOG / Datadog, Inc.
InstitutionNational Pension Service
Latest Disclosed Ownership453,426 shares
Latest Disclosed Value $ 53,526,939
National Pension Service reports 2.51% increase in ownership of DDOG / Datadog, Inc.

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 453,426 shares of Datadog, Inc. (MX:DDOG) valued at $53,526,939 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 442,345 shares of Datadog, Inc.. This represents a change in shares of 2.51% during the quarter.

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)
2026-05-12 2026-03-31 13F DATADOG CL A COM 23804L103 453,426 11,081 2.51 53,527 -11.02 0.0406
2026-02-10 2025-12-31 13F DATADOG DATADOG INC 23804L103 442,345 15,656 3.67 60,154 -1.00 0.0445
2025-11-04 2025-09-30 13F DATADOG CL A COM 23804L103 426,689 8,723 2.09 60,761 8.22 0.0472
2025-08-08 2025-06-30 13F DATADOG CL A COM 23804L103 417,966 -42,346 -9.20 56,145 22.94 0.0485
2025-05-13 2025-03-31 13F DATADOG CL A COM 23804L103 460,312 47,334 11.46 45,668 -22.61 0.0439
2025-02-05 2024-12-31 13F DATADOG CL A COM 23804L103 412,978 -19,472 -4.50 59,010 18.60 0.0558
2024-10-30 2024-09-30 13F DATADOGINC CLACOM 23804L103 432,450 39,881 10.16 49,758 -2.27 0.0480
2024-08-13 2024-06-30 13F DATADOG CL A COM 23804L103 392,569 49,081 14.29 50,912 19.92 0.0585
2024-05-14 2024-03-31 13F DATADOG CL A COM 23804L103 343,488 -15,665 -4.36 42,455 -2.61 0.0509
2024-02-07 2023-12-31 13F DATADOG CL A COM 23804L103 359,153 0 0.00 43,594 40.21 0.0607
2023-11-15 2023-09-30 13F DATADOG CL A COM 23804L103 359,153 -624 -0.17 31,092 -10.40 0.0498
2023-08-16 2023-06-30 13F DATADOG CL A COM 23804L103 359,777 -8,133 -2.21 34,700 38.89 0.0560
2023-05-12 2023-03-31 13F DATADOG CL A COM 23804L103 367,910 -24,570 -6.26 24,985 -13.39 0.0455
2023-02-24 2022-12-31 13F/A-1 DATADOG CL A COM 23804L103 392,480 59,278 17.79 28,847 -1.00 0.0567
2023-02-21 2022-12-31 13F DATADOG CL A COM 23804L103 392,480 59,278 29 0.0567
2023-02-24 2022-09-30 13F/A-1 DATADOG CL A COM 23804L103 333,202 8,247 2.54 29,139 -5.85 0.0608
2022-11-18 2022-09-30 13F DATADOG CL A COM 23804L103 333,202 8,247 29,139 0.0608
2022-08-17 2022-06-30 13F DATADOG CL A COM 23804L103 324,955 3,143 0.98 30,949 -36.51 0.0638
2022-05-13 2022-03-31 13F DATADOG CL A COM 23804L103 321,812 53,851 20.10 48,745 2.13 0.0890
2022-02-15 2021-12-31 13F DATADOG CL A COM 23804L103 267,961 -49,774 -15.67 47,727 6.27 0.0833
2021-11-18 2021-09-30 13F DATADOG CL A COM 23804L103 317,735 3,645 1.16 44,912 37.39 0.0855
2021-08-17 2021-06-30 13F DATADOG CL A COM 23804L103 314,090 1,790 0.57 32,690 25.60 0.0621
2021-05-14 2021-03-31 13F DATADOG CL A COM 23804L103 312,300 56,800 22.23 26,027 3.48 0.0544
2021-02-19 2020-12-31 13F DATADOG CL A COM 23804L103 255,500 255,500 25,151 0.0573
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.