STOCK TITAN

Datadog (NASDAQ: DDOG) director logs 20,000-share sale under 10b5-1 plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Datadog, Inc. director Amit Agarwal, through family trusts, reported an open-market sale of 20,000 shares of Class A Common Stock on April 27, 2026, at weighted-average prices generally between about $128 and $134 per share. The filing shows these sales were executed under a pre-arranged Rule 10b5-1 trading plan dated December 8, 2025.

On the same date, 20,000 shares of Class B Common Stock held indirectly were converted into Class A Common Stock and then sold. Following the transactions, Agarwal continues to hold Class A shares both directly and indirectly, as well as substantial indirect holdings of convertible Class B Common Stock through family trusts and by his spouse.

Positive

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Insider Agarwal Amit
Role null
Sold 20,000 shs ($2.63M)
Type Security Shares Price Value
Conversion Class B Common Stock 20,000 $0.00 --
Conversion Class A Common Stock 20,000 $0.00 --
Sale Class A Common Stock 2,300 $128.7304 $296K
Sale Class A Common Stock 2,300 $129.8683 $299K
Sale Class A Common Stock 3,596 $130.7159 $470K
Sale Class A Common Stock 3,400 $131.9636 $449K
Sale Class A Common Stock 8,204 $132.7632 $1.09M
Sale Class A Common Stock 200 $133.505 $27K
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Class B Common Stock — 430,059 shares (Indirect, By Trust); Class A Common Stock — 21,640 shares (Indirect, By Trust); Class A Common Stock — 27,999 shares (Direct, null)
Footnotes (1)
  1. 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. Shares are held directly by Agarwal 2018 Family Trust, of which the Reporting Person's spouse is Trustee. Shares sold pursuant to a 10b5-1 plan dated December 8, 2025. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $128.27 to $129.18. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $129.28 to $130.26. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $130.35 to $131.27. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $131.42 to $132.405. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $132.43 to $133.39. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $133.48 to $133.53. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Shares are held directly by Agarwal 2019 Family Trust, of which the Reporting Person's spouse is Trustee. Shares are held by Reporting Person's spouse.
Shares sold 20,000 shares Class A Common Stock sold on April 27, 2026
Sale prices $128.27–$133.53 per share Weighted-average price ranges from footnotes F4–F9
Post-sale indirect Class A holding 21,640 shares Class A Common Stock held indirectly by trust after transactions
Direct Class A holding 27,999 shares Class A Common Stock held directly after reported date
Indirect Class B holding (trust) 430,059 shares Class B Common Stock indirectly held by trust after conversion
Indirect Class B holding (spouse) 53,063 underlying shares Class B Common Stock convertible into Class A, held by spouse
Additional Class B trust holding 603,464 underlying shares Class B Common Stock convertible into Class A, held by family trust
10b5-1 plan date December 8, 2025 Plan governing the reported Datadog share sales
Rule 10b5-1 plan financial
"Shares sold pursuant to a 10b5-1 plan dated December 8, 2025."
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Class B Common Stock financial
"Each share of Class B Common Stock is convertible at any time..."
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
weighted-average sales price financial
"Price reported is a weighted-average sales price. The shares were sold at prices ranging..."
Permitted Transfers regulatory
"except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate..."
initial public offering financial
"the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock."
An initial public offering (IPO) is when a private company first sells its shares to the public and becomes a stock-listed company. It matters because it allows the company to raise money from a wide range of investors, helping it grow, while giving early shareholders a way to sell some of their ownership.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Agarwal Amit

(Last)(First)(Middle)
C/O DATADOG, INC.
620 8TH AVENUE, 45TH FLOOR

(Street)
NEW YORK NEW YORK 10018

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Datadog, Inc. [ DDOG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A Common Stock04/27/2026C20,000A(1)21,640IBy Trust(2)
Class A Common Stock04/27/2026S(3)2,300D$128.7304(4)19,340IBy Trust(2)
Class A Common Stock04/27/2026S(3)2,300D$129.8683(5)17,040IBy Trust(2)
Class A Common Stock04/27/2026S(3)3,596D$130.7159(6)13,444IBy Trust(2)
Class A Common Stock04/27/2026S(3)3,400D$131.9636(7)10,044IBy Trust(2)
Class A Common Stock04/27/2026S(3)8,204D$132.7632(8)1,840IBy Trust(2)
Class A Common Stock04/27/2026S(3)200D$133.505(9)1,640IBy Trust(2)
Class A Common Stock27,999D
Class A Common Stock6,541IBy Trust(10)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Common Stock(1)04/27/2026C20,000 (1) (1)Class A Common Stock20,000$0430,059IBy Trust(2)
Class B Common Stock(1) (1) (1)Class A Common Stock603,464603,464IBy Trust(10)
Class B Common Stock(1) (1) (1)Class A Common Stock53,06353,063IBy Spouse(11)
Explanation of Responses:
1. 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.
2. Shares are held directly by Agarwal 2018 Family Trust, of which the Reporting Person's spouse is Trustee.
3. Shares sold pursuant to a 10b5-1 plan dated December 8, 2025.
4. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $128.27 to $129.18. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
5. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $129.28 to $130.26. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
6. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $130.35 to $131.27. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
7. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $131.42 to $132.405. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
8. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $132.43 to $133.39. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
9. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $133.48 to $133.53. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
10. Shares are held directly by Agarwal 2019 Family Trust, of which the Reporting Person's spouse is Trustee.
11. Shares are held by Reporting Person's spouse.
Remarks:
/s/ Kerry Acocella, Attorney-in-Fact04/29/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Amit Agarwal report for Datadog (DDOG)?

Amit Agarwal reported indirect open-market sales of 20,000 Datadog Class A shares on April 27, 2026. The shares were sold in several tranches at weighted-average prices in the $128–$134 range, following a pre-established Rule 10b5-1 trading plan.

Were Datadog (DDOG) shares sold under a Rule 10b5-1 plan?

Yes. The filing states that the shares were sold pursuant to a 10b5-1 plan dated December 8, 2025. Such plans pre-schedule trades, indicating these Datadog share sales were planned in advance rather than timed discretionarily around short-term market movements.

How many Datadog Class A shares did the family trust hold after the reported sales?

After the reported transactions, one indirect Class A position shows 21,640 shares held by a family trust. Additional lines indicate other direct and indirect Class A holdings, reflecting that Agarwal and related entities continue to own Datadog Class A stock following the sales.

What happened to Datadog Class B Common Stock in this Form 4?

The Form 4 shows a conversion of 20,000 Class B Common Stock shares into an equal number of Class A shares, which were then sold. Footnotes explain each Class B share is generally convertible into one Class A share and has no expiration date under the described terms.

Does Amit Agarwal still hold Datadog Class B shares after these transactions?

Yes. The derivative holdings section lists indirect positions in Datadog Class B Common Stock representing 53,063 and 603,464 underlying Class A shares. These Class B shares remain outstanding and are convertible into Class A stock under the terms described in the footnotes.