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Le-Quoc Alexis

Disclosed activity across 1 company

Tapewire entity
2034
SEC CIK
0001783984

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Datadog, Inc.DDOG · Entity 2027Director · Chief Technology OfficerOctober 07, 2026October 09, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Datadog, Inc.

Report date October 07, 2026 · Filed October 09, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect488,033 Ending reported balance After 2026-10-07 transaction · row 11
11 source rows · reconciled sequence

Row 1 · 2026-10-07 · Conversion · Acquired 43,224 · Balance 531,257

F1: 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.

Row 2 · 2026-10-07 · Conversion · Acquired 10,688 · Balance 541,945

F1: 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.

Row 3 · 2026-10-07 · Sale · Disposed 18,609 · Balance 523,336

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $270.85 to $271.84. 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.

Row 4 · 2026-10-07 · Sale · Disposed 5,338 · Balance 517,998

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $271.85 to $272.84. 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.

Row 5 · 2026-10-07 · Sale · Disposed 2,789 · Balance 515,209

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $272.85 to $273.84. 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.

Row 6 · 2026-10-07 · Sale · Disposed 13,036 · Balance 502,173

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F6: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $273.85 to $274.84. 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.

Row 7 · 2026-10-07 · Sale · Disposed 8,268 · Balance 493,905

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $274.85 to $275.82. 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.

Row 8 · 2026-10-07 · Sale · Disposed 2,272 · Balance 491,633

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $275.86 to $276.84. 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.

Row 9 · 2026-10-07 · Sale · Disposed 1,700 · Balance 489,933

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F9: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $276.92 to $277.91. 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.

Row 10 · 2026-10-07 · Sale · Disposed 1,300 · Balance 488,633

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $278.70 to $279.60. 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.

Row 11 · 2026-10-07 · Sale · Disposed 600 · Balance 488,033

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F11: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $280.05 to $280.60. 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.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $10.74 · Expires 2029-07-19Direct120,562 Reported balance After 2026-10-07 transaction · row 13 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 13 · 2026-10-07 · Exercise / conversion · Disposed 10,688 · Balance 120,562

F13: Option is fully vested and exercisable.

Class B Common StockSEC Table II · derivative / convertible securityDirect2,170,718 Reported balance After 2026-10-07 transaction · row 14 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 14 · 2026-10-07 · Exercise / conversion · Acquired 10,688 · Balance 2,170,718

F1: 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.

Class B Common StockSEC Table II · derivative / convertible securityDirect2,116,806 Reported balance After 2026-10-07 transaction · row 15 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 15 · 2026-10-07 · Conversion · Disposed 53,912 · Balance 2,116,806

F1: 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Trust169 Reported balance Holding disclosure · report date 2026-10-07 · row 12 Holding and transaction disclosures are not merged.
1 source row

Row 12 · Balance 169

F12: Shares are held by the Alexis Le-Quoc Revocable Trust.

Class B Common StockSEC Table II · derivative / convertible securityIndirectBy Trust6,146,835 Reported balance Holding disclosure · report date 2026-10-07 · row 16 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 16 · Balance 6,146,835

F1: 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.

F12: Shares are held by the Alexis Le-Quoc Revocable Trust.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

F2: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $270.85 to $271.84. 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.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $271.85 to $272.84. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $272.85 to $273.84. 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.

F6: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $273.85 to $274.84. 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.

F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $274.85 to $275.82. 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.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $275.86 to $276.84. 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.

F9: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $276.92 to $277.91. 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.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $278.70 to $279.60. 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.

F11: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $280.05 to $280.60. 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.

F12: Shares are held by the Alexis Le-Quoc Revocable Trust.

F13: Option is fully vested and exercisable.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 300 $255.57 $76,670.01
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 7

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 582,923

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F7 · 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 300 $254.58 $76,373.01
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 6

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 583,223

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F6 · 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 700 $253.26 $177,281.02
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 5

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 583,523

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5 · 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 600 $252.34 $151,404.00
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 4

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 584,223

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4 · 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 400 $250.92 $100,366.00
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 3

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 584,823

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3 · price: 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 10,688 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 2

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 585,223

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
June 01, 2026 Filed Jun 3, 2026 20:42 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 43,224 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000171 · wk-form4_1780519370.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 574,535

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 43,224 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · derivative · entry 10

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,473,574

Underlying: Class A Common Stock · 43,224 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 900 $210.44 $189,397.98
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 8

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,311

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F9 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $210.12 to $210.81. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 5,066 $209.46 $1,061,105.11
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 7

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 532,211

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F8 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $209.10 to $210.08. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 14,901 $208.68 $3,109,548.13
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 6

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 537,277

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F7 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $208.10 to $209.09. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 16,347 $207.66 $3,394,691.58
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 5

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 552,178

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F6 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $207.10 to $208.09. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 3,210 $206.79 $663,810.67
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 4

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 568,525

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $206.09 to $207.07. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 1,200 $205.63 $246,753.24
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 3

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 571,735

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $205.00 to $205.95. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 1,600 $204.47 $327,153.92
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 2

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 572,935

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $203.92 to $204.78. 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.

Read SEC document
May 18, 2026 Filed May 20, 2026 20:36 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 43,224 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000151 · wk-form4_1779309408.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 574,535

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 05, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 10,806 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · derivative · entry 18

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,516,798

Underlying: Class A Common Stock · 10,806 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
May 05, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 10,806 $150.00 $1,620,900.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 12

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,311

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

Read SEC document
May 05, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 10,806 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 11

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 542,117

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 32,418 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · derivative · entry 17

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,527,604

Underlying: Class A Common Stock · 32,418 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 10,688 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · derivative · entry 16

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,560,022

Underlying: Class A Common Stock · 10,688 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 Exercise / conversionClass B Common Stock · Derivative 18,750 $10.74 $201,375.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · derivative · entry 15

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,570,710

Underlying: Class A Common Stock · 18,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 Exercise / conversionStock Option (Right to Buy) · Derivative 18,750 $0.00 Strike: $10.74 $0.00
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · derivative · entry 14

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 206,250

Underlying: Class B Common Stock · 18,750 shares

Expires 2029-07-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F12 · derivative.exercise_date: Option is fully vested and exercisable.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 2,250 $146.96 $330,657.98
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 10

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,311

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F10 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $146.83 to $147.25. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 14,824 $146.47 $2,171,254.97
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 9

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 533,561

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F9 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $145.83 to $146.82. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 10,898 $145.27 $1,583,168.81
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 8

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 548,385

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F8 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $144.83 to $145.82. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 5,634 $144.36 $813,349.59
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 7

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 559,283

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F7 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $143.83 to $144.82. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 2,700 $143.46 $387,329.04
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 6

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 564,917

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F6 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $142.83 to $143.82. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 2,800 $142.38 $398,675.20
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 5

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 567,617

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $141.83 to $142.80. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 1,956 $141.23 $276,249.21
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 4

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 570,417

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $140.75 to $141.70. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 2,044 $140.34 $286,849.44
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 3

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 572,373

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $139.75 to $140.73. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 32,418 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 2

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 574,417

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 20:02 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 10,688 Not disclosed Not disclosed
Disclosure

SEC source: 0001561550-26-000126 · wk-form4_1778097719.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 541,999

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 43,224 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · derivative · entry 7

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,551,960

Underlying: Class A Common Stock · 43,224 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 100 $133.16 $13,316.00
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · nonDerivative · entry 5

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,311

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 6,932 $132.04 $915,283.95
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · nonDerivative · entry 4

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,411

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $131.59 to $132.48. 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 19,393 $130.89 $2,538,355.59
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · nonDerivative · entry 3

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 538,343

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $130.59 to $131.57. 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 16,799 $130.27 $2,188,360.37
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · nonDerivative · entry 2

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 557,736

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $129.59 to $130.58. 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:16 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 43,224 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000121 · wk-form4_1776978992.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 574,535

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

Read SEC document
April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 21,612 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · derivative · entry 11

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,595,184

Underlying: Class A Common Stock · 21,612 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass B Common Stock · Derivative 10,688 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · derivative · entry 10

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,616,796

Underlying: Class A Common Stock · 10,688 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 Exercise / conversionClass B Common Stock · Derivative 18,750 $10.74 $201,375.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · derivative · entry 9

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,627,484

Underlying: Class A Common Stock · 18,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 Exercise / conversionStock Option (Right to Buy) · Derivative 18,750 $0.00 Strike: $10.74 $0.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · derivative · entry 8

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 225,000

Underlying: Class B Common Stock · 18,750 shares

Expires 2029-07-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: Option is fully vested and exercisable.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 300 $117.90 $35,370.99
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 6

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,311

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F6 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $117.57 to $118.56. 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 13,738 $117.01 $1,607,483.38
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 5

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 531,611

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F5 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $116.57 to $117.56. 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 14,862 $116.23 $1,727,364.19
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 4

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 545,349

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F4 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $115.57 to $116.56. 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 SaleClass A Common Stock 3,400 $115.13 $391,434.52
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 3

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 560,211

F2 · kind: Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.

F3 · price: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $114.56 to $115.52. 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 21,612 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 2

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 563,611

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

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April 06, 2026 Filed Apr 8, 2026 20:22 UTC Datadog, Inc. DDOG · Entity 2027 ConversionClass A Common Stock 10,688 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000110 · wk-form4_1775679762.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 541,999

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

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April 01, 2026 Filed Apr 3, 2026 20:55 UTC Datadog, Inc. DDOG · Entity 2027 GrantClass A Common Stock 94,054 $0.00 $0.00
Disclosure

SEC source: 0001561550-26-000101 · wk-form4_1775249707.xml · nonDerivative · entry 1

Le-Quoc Alexis · CIK 0001783984 · Director · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 531,311

F1 · shares: Represents the number of shares of Class A Common Stock underlying restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. The shares underlying the RSUs vest as to 12/48 of the shares on March 1, 2027 and the remainder of the shares vest in 12 equal installments on each June 1, September 1, December 1 and March 1 thereafter, subject to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.