Derivative exercise or conversion — not an open-market buy.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Dec 12, 2025
Reporting period
Not applicable
Filed with the SEC
Dec 16, 2025
DirectorIndirect holdingOption exercise
Context
Classification
option exercise
Code C — exercise or conversion of a derivative security
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001561550-25-000358
Filed / recorded
Dec 16, 2025, 9:10 PM UTC
Added to OQRO
Oct 2, 2026, 12:27 PM UTC
Parser
form4-xml-v1
Data quality
Verified: identifiers matched exactly
Issuer
Datadog, Inc.
Issuer CIK
1561550
Ticker
DDOG
Reporting person
Michael James Callahan
Relationship
Director
Security
Class B Common Stock
Table
Derivative (Table II)
Transaction date
Dec 12, 2025
Transaction code
C
Shares / units
15,000
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
240,542
Ownership form
Indirect — By Trust
Amendment
No
Footnotes from the filing
Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon the earliest of: (i) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate of incorporation, (ii) the death of the Reporting Person in the case of shares held directly or in a trustee capacity, and (iii) the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock.
The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee.