Datadog, Inc.
MX ˙ BMV ˙ US23804L1035
SecurityMX:DDOG / Datadog, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership291,948 shares
Latest Disclosed Value $ 34,464,559
Renaissance Technologies Llc reports 6.53% decrease in ownership of DDOG / Datadog, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 291,948 shares of Datadog, Inc. (MX:DDOG) valued at $34,464,559 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 312,330 shares of Datadog, Inc.. This represents a change in shares of -6.53% 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 291,948 -20,382 -6.53 34,465 -18.86 0.0539
2026-02-12 2025-12-31 13F DATADOG CL A COM 23804L103 312,330 -398,722 -56.07 42,474 -58.05 0.0659
2025-11-13 2025-09-30 13F DATADOG CL A COM 23804L103 711,052 334,800 88.98 101,254 100.34 0.1337
2025-08-13 2025-06-30 13F DATADOG CL A COM 23804L103 376,252 -784,100 -67.57 50,542 -56.10 0.0672
2025-05-14 2025-03-31 13F DATADOG CL A COM 23804L103 1,160,352 117,500 11.27 115,119 -22.75 0.1742
2025-02-13 2024-12-31 13F DATADOG CL A COM 23804L103 1,042,852 -541,900 -34.19 149,013 -18.28 0.2206
2024-11-13 2024-09-30 13F DATADOG CL A COM 23804L103 1,584,752 -158,300 -9.08 182,342 -19.34 0.2742
2024-08-09 2024-06-30 13F DATADOG CL A COM 23804L103 1,743,052 -154,400 -8.14 226,056 96,505.13 0.3834
2024-05-13 2024-03-31 13F DATADOG CL A COM 23804L103 1,897,452 -193,500 -9.25 235 -7.51 0.3686
2024-02-13 2023-12-31 13F DATADOG CL A COM 23804L103 2,090,952 957,360 84.45 254 145.63 0.3928
2023-11-14 2023-09-30 13F DATADOG CL A COM 23804L103 1,133,592 -239,700 -17.45 103 -23.70 0.1760
2023-08-11 2023-06-30 13F DATADOG CL A COM 23804L103 1,373,292 -1,388,208 -50.27 135 -32.50 0.1947
2023-05-12 2023-03-31 13F DATADOG CL A COM 23804L103 2,761,500 996,234 56.44 201 55.04 0.2663
2023-02-13 2022-12-31 13F DATADOG CL A COM 23804L103 1,765,266 197,266 12.58 130 -99.91 0.1775
2022-11-14 2022-09-30 13F DATADOG CL A COM 23804L103 1,568,000 330,900 26.75 139,207 18.15 0.1969
2022-08-12 2022-06-30 13F DATADOG CL A COM 23804L103 1,237,100 964,400 353.65 117,821 185.24 0.1395
2022-05-13 2022-03-31 13F DATADOG CL A COM 23804L103 272,700 -235,596 -46.35 41,306 -54.37 0.0485
2022-02-11 2021-12-31 13F DATADOG CL A COM 23804L103 508,296 -632,104 -55.43 90,533 -43.84 0.1126
2021-11-12 2021-09-30 13F DATADOG CL A COM 23804L103 1,140,400 1,140,400 161,196 0.2082
2021-08-13 2021-06-30 13F DATADOG CL A COM 23804L103 0 -343,000 -100.00 0 -100.00
2021-05-13 2021-03-31 13F DATADOG CL A COM 23804L103 343,000 98,336 40.19 28,586 18.69 0.0356
2021-02-10 2020-12-31 13F DATADOG CL A COM 23804L103 244,664 -620,336 -71.72 24,085 -72.74 0.0262
2020-11-13 2020-09-30 13F DATADOG CL A COM 23804L103 865,000 -1,484,100 -63.18 88,368 -56.74 0.0882
2020-08-13 2020-06-30 13F DATADOG CL A COM 23804L103 2,349,100 1,801,400 328.90 204,254 936.51 0.1763
2020-05-14 2020-03-31 13F DATADOG CL A COM 23804L103 547,700 547,700 19,706 0.0191
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.