Datadog, Inc.
US ˙ NasdaqGS ˙ US23804L1035

SecurityDDOG / Datadog, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership101,798 shares
Latest Disclosed Value $ 12,017,254
Summit Trail Advisors, Llc reports 1.90% increase in ownership of DDOG / Datadog, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 101,798 shares of Datadog, Inc. (US:DDOG) valued at $12,017,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 99,903 shares of Datadog, Inc.. This represents a change in shares of 1.90% during the quarter. The current value of the position is $25,483,093 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)
2026-05-12 2026-03-31 13F DATADOG CL A COM 23804L103 101,798 1,895 1.90 12,017 -11.54 0.1722
2026-02-17 2025-12-31 13F DATADOG CL A COM 23804L103 99,903 -29,070 -22.54 13,586 -26.03 0.2349
2025-11-14 2025-09-30 13F DATADOG CL A COM 23804L103 128,973 15,026 13.19 18,366 19.99 0.2536
2025-08-14 2025-06-30 13F DATADOG CL A COM 23804L103 113,947 6,198 5.75 15,307 43.19 0.2627
2025-04-28 2025-03-31 13F DATADOG CL A COM 23804L103 107,749 -29,753 -21.64 10,690 -45.59 0.3526
2025-01-29 2024-12-31 13F DATADOG CL A COM 23804L103 137,502 502 0.37 19,648 24.64 0.7251
2024-11-12 2024-09-30 13F DATADOG CL A COM 23804L103 137,000 -1,462 -1.06 15,763 -12.22 0.3908
2024-08-13 2024-06-30 13F Datadog Inc CL A CL A COM 23804L103 138,462 -5,146 -3.58 17,957 1.17 0.4720
2024-04-23 2024-03-31 13F DATADOG CL A COM 23804L103 143,608 101 0.07 17,750 1.90 0.4718
2024-02-06 2023-12-31 13F DATADOG CL A COM 23804L103 143,507 -335 -0.23 17,419 32.94 0.5764
2023-10-30 2023-09-30 13F DATADOG CL A COM 23804L103 143,842 25,139 21.18 13,103 12.19 0.4820
2023-07-25 2023-06-30 13F DATADOG CL A COM 23804L103 118,703 436 0.37 11,678 35.90 0.4406
2023-05-04 2023-03-31 13F DATADOG CL A COM 23804L103 118,267 8,828 8.07 8,593 6.84 0.3461
2023-02-07 2022-12-31 13F Datadog Inc CL A COM 23804L103 109,439 -104 -0.09 8,044 -17.30 0.3573
2022-11-10 2022-09-30 13F Datadog Inc CL A Stock 23804L103 109,543 102 0.09 9,725 -6.70 0.5259
2022-08-09 2022-06-30 13F Datadog Inc CL A COM 23804L103 109,441 48,828 80.56 10,423 13.53 0.6444
2022-05-16 2022-03-31 13F Datadog Inc CL A EQUITY 23804L103 60,613 -68,142 -52.92 9,181 -59.97 0.7425
2022-02-11 2021-12-31 13F Datadog Inc CL A Equity 23804L103 128,755 128,755 22,933 1.4788
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.