Datadog, Inc. (DDOG) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-16 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Datadog, Inc. (DDOG) CIK: 0001561550 --- Reporting Owner --- Name: Pomel Olivier CIK: 0001783990 Role: Director, Officer (Chief Executive Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-06-16 | Code: C (Conversion of derivative) Shares: +84,698 Shares Owned After: 697,445 | Ownership: D (Direct) Footnotes: [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. [Transaction #2] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -1,400 | Price: $226.43 Total Value: $317,007.04 Shares Owned After: 696,045 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F3] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $225.90 to $226.89. 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. [Transaction #3] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -1,782 | Price: $227.36 Total Value: $405,157.12 Shares Owned After: 694,263 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F4] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $226.91 to $227.83. 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. [Transaction #4] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -1,500 | Price: $228.28 Total Value: $342,414.00 Shares Owned After: 692,763 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F5] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.05 to $229.04. 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. [Transaction #5] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -2,085 | Price: $230.20 Total Value: $479,964.08 Shares Owned After: 690,678 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F6] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $229.59 to $230.56. 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. [Transaction #6] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -25,560 | Price: $231.11 Total Value: $5,907,056.58 Shares Owned After: 665,118 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F7] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.63 to $231.62. 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. [Transaction #7] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -9,881 | Price: $232.22 Total Value: $2,294,611.27 Shares Owned After: 655,237 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F8] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $231.63 to $232.62. 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. [Transaction #8] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -20,806 | Price: $233.11 Total Value: $4,850,182.37 Shares Owned After: 634,431 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F9] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.63 to $233.61. 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. [Transaction #9] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -18,207 | Price: $234.02 Total Value: $4,260,833.09 Shares Owned After: 616,224 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F10] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.63 to $234.61. 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. [Transaction #10] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -2,272 | Price: $235.02 Total Value: $533,960.67 Shares Owned After: 613,952 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F11] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $234.63 to $235.61. 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. [Transaction #11] Security: Class A Common Stock Date: 2026-06-16 | Code: S (Open market sale) Shares: -1,205 | Price: $235.94 Total Value: $284,313.36 Shares Owned After: 612,747 | Ownership: D (Direct) Footnotes: [F2] Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. [F12] Price reported is a weighted-average sales price. The shares were sold at prices ranging from $235.65 to $236.33. 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. --- Derivative Transactions --- [Transaction #1] Security: Class B Common Stock Date: 2026-06-16 | Code: C (Conversion of derivative) Shares: -84,698 | Price: $0.00 Shares Owned After: 8,946,913 | Ownership: D (Direct) Footnotes: [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. [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. [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. --- Footnotes (Complete Index) --- 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. F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.63 to $234.61. 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 $234.63 to $235.61. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $235.65 to $236.33. 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. F2: Shares sold pursuant to a 10b5-1 plan dated December 15, 2025. F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $225.90 to $226.89. 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. F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $226.91 to $227.83. 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 $228.05 to $229.04. 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 $229.59 to $230.56. 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. F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.63 to $231.62. 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 $231.63 to $232.62. 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 $232.63 to $233.61. 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. --- Signature --- /s/ /s/ Kerry Acocella, Attorney-in-Fact (2026-06-18)