Datadog, Inc.
MX ˙ BMV ˙ US23804L1035
SecurityMX:DDOG / Datadog, Inc.
InstitutionNissay Asset Management Corp /japan/ /adv
Latest Disclosed Ownership89,094 shares
Latest Disclosed Value $ 10,517,547
Nissay Asset Management Corp /japan/ /adv reports 3.98% increase in ownership of DDOG / Datadog, Inc.

On May 15, 2026 - Nissay Asset Management Corp /japan/ /adv filed a 13F-HR form disclosing ownership of 89,094 shares of Datadog, Inc. (MX:DDOG) valued at $10,517,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 85,685 shares of Datadog, Inc.. This represents a change in shares of 3.98% 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)
2026-05-15 2026-03-31 13F DATADOG CL A COM 23804L103 89,094 3,409 3.98 10,518 -9.74 0.0557
2026-02-17 2025-12-31 13F DATADOG CL A COM 23804L103 85,685 6,743 8.54 11,652 3.66 0.0606
2025-11-14 2025-09-30 13F DATADOG CL A COM 23804L103 78,942 1,915 2.49 11,241 8.64 0.0621
2025-08-14 2025-06-30 13F DATADOG CL A COM 23804L103 77,027 3,555 4.84 10,347 41.95 0.0606
2025-05-15 2025-03-31 13F DATADOG CL A COM 23804L103 73,472 7,580 11.50 7,289 -24.22 0.0474
2025-02-14 2024-12-31 13F DATADOG CL A COM 23804L103 65,892 3,048 4.85 9,620 33.04 0.0587
2024-11-14 2024-09-30 13F DATADOG CL A COM 23804L103 62,844 5,798 10.16 7,231 -2.27 0.0458
2024-08-14 2024-06-30 13F DATADOG CL A COM 23804L103 57,046 7,094 14.20 7,398 19.83 0.0490
2024-05-15 2024-03-31 13F DATADOG CL A COM 23804L103 49,952 15,097 43.31 6,174 45.96 0.0428
2024-02-14 2023-12-31 13F DATADOG CL A COM 23804L103 34,855 3,941 12.75 4,231 50.27 0.0340
2023-11-14 2023-09-30 13F DATADOG CL A COM 23804L103 30,914 2,747 9.75 2,816 1.59 0.0250
2023-08-14 2023-06-30 13F DATADOG CL A COM 23804L103 28,167 417 1.50 2,771 37.45 0.0239
2023-05-15 2023-03-31 13F DATADOG CL A COM 23804L103 27,750 -751 -2.63 2,016 -3.72 0.0180
2023-02-14 2022-12-31 13F DATADOG CL A COM 23804L103 28,501 644 2.31 2,095 -15.33 0.0200
2022-11-14 2022-09-30 13F DATADOG CL A COM 23804L103 27,857 2,632 10.43 2,473 2.96 0.0260
2022-08-15 2022-06-30 13F DATADOG CL A COM 23804L103 25,225 -414 -1.61 2,402 -38.16 0.0239
2022-05-16 2022-03-31 13F DATADOG CL A COM 23804L103 25,639 3,166 14.09 3,884 -2.97 0.0338
2022-02-14 2021-12-31 13F DATADOG CL A COM 23804L103 22,473 1,802 8.72 4,003 37.00 0.0307
2021-11-10 2021-09-30 13F DATADOG CL A COM 23804L103 20,671 3,627 21.28 2,922 64.71 0.0248
2021-08-13 2021-06-30 13F DATADOG CL A COM 23804L103 17,044 -1,493 -8.05 1,774 14.82 0.0156
2021-05-11 2021-03-31 13F DATADOG CL A COM 23804L103 18,537 1,806 10.79 1,545 -6.19 0.0152
2021-02-08 2020-12-31 13F DATADOG CL A COM 23804L103 16,731 2,876 20.76 1,647 16.40 0.0248
2020-10-20 2020-09-30 13F DATADOG CL A COM 23804L103 13,855 2,649 23.64 1,415 45.28 0.0239
2020-07-27 2020-06-30 13F DATADOG CL A COM 23804L103 11,206 11,206 974 0.0189
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.