Datadog, Inc.
MX ˙ BMV ˙ US23804L1035
SecurityMX:DDOG / Datadog, Inc.
InstitutionAviva Plc
Latest Disclosed Ownership260,077 shares
Latest Disclosed Value $ 30,702,090
Aviva Plc reports 18.26% increase in ownership of DDOG / Datadog, Inc.

On May 14, 2026 - Aviva Plc filed a 13F-HR form disclosing ownership of 260,077 shares of Datadog, Inc. (MX:DDOG) valued at $30,702,090 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 219,922 shares of Datadog, Inc.. This represents a change in shares of 18.26% 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)
2026-05-14 2026-03-31 13F DATADOG CL A COM 23804L103 260,077 40,155 18.26 30,702 2.66 0.0515
2026-02-12 2025-12-31 13F DATADOG CL A COM 23804L103 219,922 13,802 6.70 29,907 1.89 0.0504
2025-11-13 2025-09-30 13F DATADOG CL A COM 23804L103 206,120 22,025 11.96 29,351 18.69 0.0533
2025-08-07 2025-06-30 13F DATADOG CL A COM 23804L103 184,095 21,669 13.34 24,729 53.46 0.0511
2025-05-15 2025-03-31 13F DATADOG CL A COM 23804L103 162,426 -7,432 -4.38 16,114 -33.61 0.0389
2025-02-13 2024-12-31 13F DATADOG CL A COM 23804L103 169,858 -15,033 -8.13 24,271 14.09 0.0630
2024-11-14 2024-09-30 13F DATADOG CL A COM 23804L103 184,891 4,304 2.38 21,274 -9.17 0.0551
2024-08-02 2024-06-30 13F DATADOG CL A COM 23804L103 180,587 24,467 15.67 23,420 21.37 0.0649
2024-05-14 2024-03-31 13F DATADOG CL A COM 23804L103 156,120 81,526 109.29 19,296 113.12 0.0635
2024-02-09 2023-12-31 13F DATADOG CL A COM 23804L103 74,594 -11,432 -13.29 9,054 15.54 0.0325
2023-11-13 2023-09-30 13F DATADOG CL A COM 23804L103 86,026 -6,481 -7.01 7,836 -13.89 0.0330
2023-08-10 2023-06-30 13F DATADOG CL A COM 23804L103 92,507 -147,579 -61.47 9,101 -47.83 0.0371
2023-05-12 2023-03-31 13F DATADOG CL A COM 23804L103 240,086 86,492 56.31 17,445 54.52 0.0790
2023-02-14 2022-12-31 13F/A-2 DATADOG CL A COM 23804L103 153,594 4,495 3.01 11,289 -14.72 0.0555
2023-02-10 2022-12-31 13F/A-1 DATADOG CL A COM 23804L103 153,594 4,495 1,348 0.0064
2023-02-09 2022-12-31 13F DATADOG CL A COM 23804L103 153,594 4,495 11 0.0542
2022-11-14 2022-09-30 13F DATADOG CL A COM 23804L103 149,099 709 0.48 13,237 -6.34 0.0763
2022-08-04 2022-06-30 13F DATADOG CL A COM 23804L103 148,390 71,202 92.24 14,133 20.88 0.0752
2022-05-13 2022-03-31 13F DATADOG CL A COM 23804L103 77,188 -5,550 -6.71 11,692 -20.66 0.0585
2022-02-10 2021-12-31 13F DATADOG CL A COM 23804L103 82,738 11,791 16.62 14,736 46.95 0.0618
2021-11-12 2021-09-30 13F DATADOG CL A COM 23804L103 70,947 -1,992 -2.73 10,028 32.10 0.0447
2021-08-10 2021-06-30 13F DATADOG CL A COM 23804L103 72,939 6,913 10.47 7,591 37.94 0.0333
2021-05-13 2021-03-31 13F DATADOG CL A COM 23804L103 66,026 2,140 3.35 5,503 -12.50 0.0269
2021-02-10 2020-12-31 13F DATADOG CL A COM 23804L103 63,886 -8,960 -12.30 6,289 -15.49 0.0327
2020-11-12 2020-09-30 13F DATADOG CL A COM 23804L103 72,846 45,567 167.04 7,442 213.74 0.0439
2020-08-13 2020-06-30 13F/A-1 DATADOG CL A COM 23804L103 27,279 27,279 2,372 0.0148
2020-08-13 2020-06-30 13F DATADOG CL A COM 23804L103 27,279 2,372 0.0148
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.