STOCK TITAN

Datadog (NASDAQ: DDOG) CTO tax-related stock sales and option exercise

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Datadog, Inc. Chief Technology Officer Alexis Le-Quoc reported open-market sales and equity conversions in company stock. He sold a total of 75,418 shares of Class A Common Stock at prices generally between about $251 and $279, under a Rule 10b5-1 trading plan dated June 13, 2025. Footnotes state the issuer required him to sell only the number of shares needed to cover tax withholding on vesting restricted stock units and performance-based restricted stock units.

Alongside the sales, Le-Quoc converted and exercised derivative securities into 91,412 shares of Class A stock, including 18,750 shares from a fully vested stock option with a $10.74 exercise price. After these transactions, he continues to hold 509,805 Class A shares directly and additional Class A and Class B shares indirectly through a revocable trust.

Positive

  • None.

Negative

  • None.
Insider Le-Quoc Alexis
Role Chief Technology Officer
Sold 75,418 shs ($20.36M)
Type Security Shares Price Value
Sale Class A Common Stock 21,506 $267.1544 $5.75M
Exercise Stock Option (Right to Buy) 18,750 $0.00 --
Exercise Class B Common Stock 18,750 $10.74 $201K
Conversion Class B Common Stock 53,912 $0.00 --
Conversion Class A Common Stock 43,224 $0.00 --
Conversion Class A Common Stock 10,688 $0.00 --
Sale Class A Common Stock 400 $250.915 $100K
Sale Class A Common Stock 600 $252.34 $151K
Sale Class A Common Stock 700 $253.2586 $177K
Sale Class A Common Stock 300 $254.5767 $76K
Sale Class A Common Stock 300 $255.5667 $77K
Sale Class A Common Stock 989 $257.0589 $254K
Sale Class A Common Stock 1,818 $257.9556 $469K
Sale Class A Common Stock 3,119 $259.0872 $808K
Sale Class A Common Stock 1,400 $259.9529 $364K
Sale Class A Common Stock 100 $261.01 $26K
Sale Class A Common Stock 1,600 $262.89 $421K
Sale Class A Common Stock 1,336 $263.6931 $352K
Sale Class A Common Stock 923 $264.7184 $244K
Sale Class A Common Stock 917 $265.816 $244K
Sale Class A Common Stock 715 $266.976 $191K
Sale Class A Common Stock 642 $267.7827 $172K
Sale Class A Common Stock 1,012 $268.8208 $272K
Sale Class A Common Stock 1,559 $270.3663 $422K
Sale Class A Common Stock 929 $271.4158 $252K
Sale Class A Common Stock 3,722 $272.5616 $1.01M
Sale Class A Common Stock 2,593 $273.4197 $709K
Sale Class A Common Stock 1,001 $274.5828 $275K
Sale Class A Common Stock 4,548 $276.02 $1.26M
Sale Class A Common Stock 15,873 $276.7206 $4.39M
Sale Class A Common Stock 6,359 $277.7704 $1.77M
Sale Class A Common Stock 457 $278.5218 $127K
holding Class B Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 509,805 shares (Direct, null); Stock Option (Right to Buy) — 187,500 shares (Direct, null); Class B Common Stock — 2,492,324 shares (Direct, null); Class B Common Stock — 6,203,835 shares (Indirect, By Trust); Class A Common Stock — 169 shares (Indirect, By Trust)
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 sold pursuant to a 10b5-1 plan dated June 13, 2025. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $250.74 to $251.44. 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 $251.99 to $252.58. 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 $253.04 to $253.91. 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 $254.17 to $254.78. 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 $255.31 to $255.92. 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 $256.54 to $257.53. 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. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $257.58 to $258.57. 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 $258.60 to $259.58. 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 $259.68 to $260.55. 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 $262.26 to $263.22. 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 $263.26 to $264.13. 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 $264.32 to $265.09. 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 $265.33 to $266.29. 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 $266.39 to $267.32. 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 $267.44 to $268.22. 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 $268.46 to $269.21. 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 $269.75 to $270.74. 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 $271.00 to $271.93. 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 $272.01 to $272.99. 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 $273.02 to $273.89. 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 $274.25 to $274.97. 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 $275.32 to $276.31. 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 $276.32 to $277.30. 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 $277.36 to $278.29. 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 $278.42 to $278.71. 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. The Reporting Person was required by the Issuer to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as any related brokerage commission fees. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $267.15 to $268.44. 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 by the Alexis Le-Quoc Revocable Trust. Option is fully vested and exercisable.
Shares sold 75,418 shares Total Class A shares sold in open-market transactions
Representative sale price $267.1544 per share One reported weighted-average price for Class A sales
Option exercise size 18,750 shares Stock option exercised into Class B Common Stock
Option exercise price $10.74 per share Exercise price on fully vested stock option
Shares from conversions/exercises 91,412 shares Class A shares acquired via derivative conversions and exercises
Direct Class A holdings 509,805 shares Direct Class A Common Stock owned after transactions
Indirect Class B holdings 6,203,835 shares Class B shares held by revocable trust, convertible 1:1 into Class A
10b5-1 plan date June 13, 2025 Date of pre-arranged trading plan governing reported sales
Rule 10b5-1 plan financial
"Shares sold pursuant to a 10b5-1 plan dated June 13, 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.
weighted-average sales price financial
"Price reported is a weighted-average sales price. The shares were sold at prices ranging..."
restricted stock units financial
"tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
performance-based restricted stock units financial
"tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units"
Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.
revocable trust financial
"Shares are held by the Alexis Le-Quoc Revocable Trust."
A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.
Class B Common Stock financial
"Each share of Class B Common Stock is convertible at any time... into one share of Class A Common Stock"
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.
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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*
Le-Quoc Alexis

(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
XOfficer (give title below)Other (specify below)
Chief Technology Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026
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 Stock06/01/2026C43,224A(1)574,535D
Class A Common Stock06/01/2026C10,688A(1)585,223D
Class A Common Stock06/01/2026S(2)400D$250.915(3)584,823D
Class A Common Stock06/01/2026S(2)600D$252.34(4)584,223D
Class A Common Stock06/01/2026S(2)700D$253.2586(5)583,523D
Class A Common Stock06/01/2026S(2)300D$254.5767(6)583,223D
Class A Common Stock06/01/2026S(2)300D$255.5667(7)582,923D
Class A Common Stock06/01/2026S(2)989D$257.0589(8)581,934D
Class A Common Stock06/01/2026S(2)1,818D$257.9556(9)580,116D
Class A Common Stock06/01/2026S(2)3,119D$259.0872(10)576,997D
Class A Common Stock06/01/2026S(2)1,400D$259.9529(11)575,597D
Class A Common Stock06/01/2026S(2)100D$261.01575,497D
Class A Common Stock06/01/2026S(2)1,600D$262.89(12)573,897D
Class A Common Stock06/01/2026S(2)1,336D$263.6931(13)572,561D
Class A Common Stock06/01/2026S(2)923D$264.7184(14)571,638D
Class A Common Stock06/01/2026S(2)917D$265.816(15)570,721D
Class A Common Stock06/01/2026S(2)715D$266.976(16)570,006D
Class A Common Stock06/01/2026S(2)642D$267.7827(17)569,364D
Class A Common Stock06/01/2026S(2)1,012D$268.8208(18)568,352D
Class A Common Stock06/01/2026S(2)1,559D$270.3663(19)566,793D
Class A Common Stock06/01/2026S(2)929D$271.4158(20)565,864D
Class A Common Stock06/01/2026S(2)3,722D$272.5616(21)562,142D
Class A Common Stock06/01/2026S(2)2,593D$273.4197(22)559,549D
Class A Common Stock06/01/2026S(2)1,001D$274.5828(23)558,548D
Class A Common Stock06/01/2026S(2)4,548D$276.02(24)554,000D
Class A Common Stock06/01/2026S(2)15,873D$276.7206(25)538,127D
Class A Common Stock06/01/2026S(2)6,359D$277.7704(26)531,768D
Class A Common Stock06/01/2026S(2)457D$278.5218(27)531,311D
Class A Common Stock06/02/2026S(28)21,506D$267.1544(29)509,805D
Class A Common Stock169IBy Trust(30)
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
Stock Option (Right to Buy)$10.7406/01/2026M18,750 (31)07/19/2029Class B Common Stock18,750$0187,500D
Class B Common Stock(1)06/01/2026M18,750 (1) (1)Class A Common Stock18,750$10.742,492,324D
Class B Common Stock(1)06/01/2026C53,912 (1) (1)Class A Common Stock53,912$02,438,412D
Class B Common Stock(1) (1) (1)Class A Common Stock6,203,8356,203,835IBy Trust(30)
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 sold pursuant to a 10b5-1 plan dated June 13, 2025.
3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $250.74 to $251.44. 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.
4. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $251.99 to $252.58. 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 $253.04 to $253.91. 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 $254.17 to $254.78. 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 $255.31 to $255.92. 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 $256.54 to $257.53. 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.
9. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $257.58 to $258.57. 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. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $258.60 to $259.58. 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.
11. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $259.68 to $260.55. 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.
12. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $262.26 to $263.22. 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.
13. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $263.26 to $264.13. 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.
14. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $264.32 to $265.09. 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.
15. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $265.33 to $266.29. 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.
16. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $266.39 to $267.32. 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.
17. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $267.44 to $268.22. 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.
18. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $268.46 to $269.21. 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.
19. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $269.75 to $270.74. 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.
20. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $271.00 to $271.93. 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.
21. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $272.01 to $272.99. 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.
22. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $273.02 to $273.89. 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.
23. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $274.25 to $274.97. 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.
24. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $275.32 to $276.31. 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.
25. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $276.32 to $277.30. 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.
26. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $277.36 to $278.29. 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.
27. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $278.42 to $278.71. 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.
28. The Reporting Person was required by the Issuer to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as any related brokerage commission fees.
29. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $267.15 to $268.44. 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.
30. Shares are held by the Alexis Le-Quoc Revocable Trust.
31. Option is fully vested and exercisable.
Remarks:
/s/ Kerry Acocella, Attorney-in-Fact06/03/2026
** 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 did Datadog (DDOG) CTO Alexis Le-Quoc report in this Form 4?

Alexis Le-Quoc reported multiple transactions in Datadog stock, including open-market sales of 75,418 Class A shares and conversions and exercises that delivered 91,412 Class A shares. The filing also shows substantial remaining direct and indirect holdings after these transactions.

How many Datadog (DDOG) shares did the CTO sell and at what prices?

The CTO sold 75,418 shares of Datadog Class A Common Stock. Footnotes describe weighted-average sales prices across ranges that generally span from about $250.74 to $278.71 per share, reflecting numerous small trades executed within these price bands on the transaction dates.

Were Alexis Le-Quoc’s Datadog (DDOG) stock sales pre-planned?

Yes. A footnote states the shares were sold pursuant to a Rule 10b5-1 trading plan dated June 13, 2025. Such plans are pre-arranged trading programs that schedule sales in advance, reducing the significance of short-term market timing by the insider.

Why did the Datadog (DDOG) CTO sell shares according to the filing?

Footnotes explain the issuer required the CTO to sell only the number of shares needed to cover tax withholding obligations from vesting restricted stock units and performance-based restricted stock units, plus related brokerage fees. This frames the sales as tax-related rather than discretionary portfolio changes.

What option exercise did Alexis Le-Quoc disclose for Datadog (DDOG)?

He exercised a fully vested stock option covering 18,750 shares at a $10.74 exercise price, receiving Class B Common Stock linked to an equal number of Class A shares. This derivative exercise is part of broader conversions and exercises totaling 91,412 new Class A shares.

How many Datadog (DDOG) shares does the CTO hold after these transactions?

After the reported trades, the CTO holds 509,805 Class A shares directly. Indirectly, a revocable trust holds 169 Class A shares and 6,203,835 Class B shares, each Class B share being convertible into one Class A share under the terms described in the filing.