Datadog, Inc.
US ˙ NasdaqGS ˙ US23804L1035

SecurityDDOG / Datadog, Inc.
InstitutionARK Investment Management LLC
ManagerCatherine Wood
Latest Disclosed Ownership219,291 shares
Latest Disclosed Value $ 29,821,383
ARK Investment Management LLC reports 0.40% decrease in ownership of DDOG / Datadog, Inc.

On February 11, 2026 - ARK Investment Management LLC filed a 13F-HR form disclosing ownership of 219,291 shares of Datadog, Inc. (US:DDOG) valued at $29,821,383 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 220,178 shares of Datadog, Inc.. This represents a change in shares of -0.40% during the quarter. The current value of the position is $28,393,799 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)
2026-02-11 2025-12-31 13F Datadog Common Stock 23804L103 219,291 -887 -0.40 29,821 -4.89 0.1979
2025-11-12 2025-09-30 13F Datadog Common Stock 23804L103 220,178 78,787 55.72 31,353 65.08 0.1866
2025-07-30 2025-06-30 13F Datadog Common Stock 23804L103 141,391 1,774 1.27 18,993 37.12 0.1393
2025-05-07 2025-03-31 13F Datadog Common Stock 23804L103 139,617 12,327 9.68 13,851 -23.85 0.1386
2025-02-04 2024-12-31 13F Datadog Common Stock 23804L103 127,290 49,050 62.69 18,188 102.04 0.1515
2024-10-31 2024-09-30 13F Datadog Common Stock 23804L103 78,240 -9,497 -10.82 9,002 -20.88 0.0823
2024-07-26 2024-06-30 13F Datadog Common Stock 23804L103 87,737 87,737 11,379 0.1010
2022-10-17 2022-09-30 13F Datadog Common Stock 23804L103 0 -1,134 -100.00 0 -100.00
2022-07-11 2022-06-30 13F Datadog Common Stock 23804L103 1,134 -53 -4.47 108 -40.00 0.0006
2022-04-19 2022-03-31 13F Datadog Common Stock 23804L103 1,187 88 8.01 180 -8.16 0.0008
2022-01-28 2021-12-31 13F Datadog Common Stock 23804L103 1,099 1,099 196 0.0006
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.