Matthew Jacobson is Director at Datadog, Inc. (DDOG). They have made 46 open-market trades across 4 companies since 2019, most recently 2026-08-14.
CIK 0001783518
17 open-market purchases totalling $504.1M since 2019, against 29 sales. Across 17 scored buys the stock is down 19.0% at ninety days, and 17.7 points behind the S&P over the same stretch.
17 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| TTAN | 4,529,942 | $339.7M |
| DDOG | 524,708 | $129.6M |
| PCOR | 1,662,226 | $94.7M |
| BRZE | 1,424,796 | $41.8M |
| GTLB | 325 | $17K |
| Total | $605.9M |
Shares reported on the most recent Form 4, priced at the 2026-08-17 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 59% | 12% | 29% |
| Avg Move | +1.5% | -12.5% | -19.0% |
| Alpha | +2.4% | -11.5% | -17.7% |
| Scored | 17 | 17 | 17 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DDOG | SELL | 2026-08-13 | 2026-08-17 | $252.42 | $15.0M | -0.9% | -6.0% | — |
| DDOG | SELL | 2026-05-29 | 2026-06-02 | $259.10 | $10.0M | -11.7% | -0.0% | -8.9% |
| DDOG | SELL | 2026-05-08 | 2026-05-12 | $189.28 | $10.0M | +11.8% | +17.8% | +31.1% |
| GTLB | SELL | 2026-03-19 | 2026-03-23 | $22.72 | $52.7M | +2.6% | +1.7% | +17.4% |
| GTLB | SELL | 2025-12-19 | 2025-12-23 | $38.08 | $25.5M | -1.9% | -0.1% | -40.5% |
| DDOG | SELL | 2025-11-10 | 2025-11-13 | $199.64 | $166.3M | -12.2% | -21.6% | -29.7% |
| GTLB | SELL | 2025-09-23 | 2025-09-25 | $50.16 | $6.4M | -0.9% | +4.2% | -19.5% |
| GTLB | SELL | 2025-09-19 | 2025-09-23 | $50.17 | $23.4M | -4.1% | -1.6% | -21.5% |
| GTLB | SELL | 2025-09-17 | 2025-09-19 | $50.48 | $29.4M | -11.4% | -5.4% | -23.6% |
| GTLB | SELL | 2025-09-08 | 2025-09-10 | $46.80 | $13.4M | +0.9% | -9.1% | -20.5% |
| DDOG | SELL | 2025-08-26 | 2025-08-28 | $127.44 | $174.2M | -0.6% | +3.8% | +13.2% |
| DDOG | SELL | 2025-08-22 | 2025-08-26 | $130.14 | $28.4M | +6.5% | +6.7% | +23.7% |
| GTLB | SELL | 2025-06-25 | 2025-06-27 | $42.32 | $11.0M | -1.2% | +6.0% | +2.4% |
| PCOR | SELL | 2025-06-13 | 2025-06-17 | $64.76 | $40.0M | +1.0% | +8.1% | +4.8% |
| DDOG | SELL | 2025-05-07 | 2025-05-09 | $107.57 | $50.3M | +1.4% | +8.1% | +21.6% |
| GTLB | SELL | 2025-03-24 | 2025-03-26 | $52.33 | $15.9M | -15.4% | -6.8% | -15.3% |
| GTLB | SELL | 2024-12-26 | 2024-12-30 | $59.72 | $65.4M | +1.8% | +24.8% | -16.6% |
| DDOG | SELL | 2024-11-18 | 2024-11-20 | $126.01 | $3.2M | +9.2% | +5.3% | -8.0% |
| DDOG | SELL | 2024-11-11 | 2024-11-13 | $123.16 | $13.3M | +20.9% | +18.1% | +12.2% |
| DDOG | SELL | 2024-09-11 | 2024-09-13 | $108.05 | $2.0M | +6.3% | +18.3% | +43.6% |
| DDOG | SELL | 2024-06-13 | 2024-09-13 | $119.80 | $2.4M | +6.3% | +18.3% | +43.6% |
| DDOG | SELL | 2024-06-13 | 2024-06-17 | $119.52 | $4.4M | +10.8% | +3.6% | -4.8% |
| GTLB | SELL | 2023-09-20 | 2023-09-22 | $48.37 | $8.6M | +0.7% | -0.1% | +42.3% |
| GTLB | SELL | 2023-09-13 | 2023-09-15 | $51.31 | $8.4M | -10.4% | -2.0% | +35.3% |
| DDOG | SELL | 2023-08-29 | 2023-08-31 | $93.80 | $4.2M | -0.3% | -6.0% | +19.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.