Form 4 for DDOG Datadog
Accepted 2026-06-16 16:39:17 ET · period of report 2026-06-12 · accession 0001561550-26-000205 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DTI | 2026-06-16 16:39 | 2026-06-12 | DDOG | Callahan Michael James | Dir | C - Cnv Deriv | — | +112.5K | 127.5K | +750% | — |
| DMTI | 2026-06-16 16:39 | 2026-06-12 | DDOG | Callahan Michael James | Dir | S - Sale | $231.60 | -112.5K | 15.0K | -88% | -$26.06M |
| DT | 2026-06-16 16:39 | 2026-06-15 | DDOG | Callahan Michael James | Dir | A - Grant | $0.00 | +1,072 | 20.7K | +5% | $0 |
| DTI | 2026-06-16 16:39 | 2026-06-12 | DDOG | Callahan Michael James | Dir | C - Cnv Deriv | $0.00 | -112.5K | 123.0K | -48% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2026-06-12 | C | A | 112,500 | — | 127,496 | I By Trust | — | — | (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) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 2 | Common | Class A Common Stock | 2026-06-12 | S | D | 6,715 | $228.31 | 120,781 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F4) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $227.73 to $228.71. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 3 | Common | Class A Common Stock | 2026-06-12 | S | D | 11,284 | $229.50 | 109,497 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F5) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.83 to $229.82. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 4 | Common | Class A Common Stock | 2026-06-12 | S | D | 28,701 | $230.06 | 80,796 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F6) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $229.83 to $230.82. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 5 | Common | Class A Common Stock | 2026-06-12 | S | D | 14,173 | $231.30 | 66,623 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F7) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.83 to $231.82. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 6 | Common | Class A Common Stock | 2026-06-12 | S | D | 18,830 | $232.31 | 47,793 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F8) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $231.84 to $232.83. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 7 | Common | Class A Common Stock | 2026-06-12 | S | D | 12,005 | $233.37 | 35,788 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F9) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.85 to $233.84. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 8 | Common | Class A Common Stock | 2026-06-12 | S | D | 16,145 | $234.10 | 19,643 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F10) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.85 to $234.84. 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. (F2) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 9 | Common | Class A Common Stock | 2026-06-12 | S | D | 2,901 | $235.49 | 16,742 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F11) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $234.86 to $235.85. 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) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 10 | Common | Class A Common Stock | 2026-06-12 | S | D | 1,746 | $236.20 | 14,996 | I By Trust | — | — | (F3) Shares sold pursuant to a 10b5-1 plan dated March 13, 2026. (F12) Price reported is a weighted-average sales price. The shares were sold at prices ranging from $235.90 to $236.65. 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) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |
| 11 | Common | Class A Common Stock | 2026-06-15 | A | A | 1,072 | $0.00 | 20,684 | D | — | — | (F13) Represents the number of shares underlying Restricted Stock Units ("RSUs") granted pursuant to the Issuer's non-employee director compensation policy. Each RSU represents a contingent right to receive one share of Issuer's Class A common stock. The RSUs vest on the earlier of (A) the Company's next annual meeting of stockholders and (B) June 15, 2027, in each case, subject to the Reporting Person's continuous service to the Issuer through the vesting date. |
| 12 | Derivative | Class B Common Stock | 2026-06-12 | C | D | 112,500 | $0.00 | 123,042 | I By Trust | — · — to — | 112,500 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. (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) The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee. |