Alexander C. Karp is CEO at Palantir Technologies Inc. (PLTR). They have made 34 open-market trades across 1 company since 2020, most recently 2026-08-20.
CIK 0001823951
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 34 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PLTR | 6,432,258 | $1.2B |
Shares reported on the most recent Form 4, priced at the 2026-08-24 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PLTR | SELL · 10b5-1 | 2026-08-20 | 2026-08-24 | $174.79 | $86.1M | +3.4% | +8.6% | — |
| PLTR | SELL · 10b5-1 | 2026-05-20 | 2026-05-22 | $136.04 | $54.1M | +4.0% | -12.3% | +27.7% |
| PLTR | SELL | 2026-02-20 | 2026-02-24 | $133.78 | $66.0M | +20.3% | +13.0% | +4.6% |
| PLTR | SELL | 2025-11-20 | 2025-11-24 | $162.88 | $121.8M | +13.6% | +21.3% | -18.4% |
| PLTR | SELL | 2025-08-20 | 2025-08-22 | $153.07 | $113.2M | +0.0% | +14.9% | -0.2% |
| PLTR | SELL | 2025-05-20 | 2025-05-22 | $126.38 | $77.2M | +7.6% | +15.8% | +29.1% |
| PLTR | SELL | 2025-02-20 | 2025-02-24 | $103.01 | $89.1M | -11.2% | +1.8% | +36.1% |
| PLTR | SELL · 10b5-1 | 2024-11-20 | 2024-11-22 | $62.96 | $315.7M | +7.4% | +20.6% | +58.8% |
| PLTR | SELL · 10b5-1 | 2024-11-18 | 2024-11-20 | $63.88 | $139.9M | +14.4% | +29.8% | +100.9% |
| PLTR | SELL · 10b5-1 | 2024-11-13 | 2024-11-15 | $63.11 | $514.2M | +1.7% | +16.7% | +81.6% |
| PLTR | SELL · 10b5-1 | 2024-11-05 | 2024-11-07 | $52.42 | $1.1B | +13.3% | +30.4% | +82.4% |
| PLTR | SELL · 10b5-1 | 2024-10-25 | 2024-10-29 | $45.02 | $509.3M | +31.0% | +50.5% | +69.2% |
| PLTR | SELL · 10b5-1 | 2024-09-13 | 2024-09-17 | $36.21 | $480.0M | +2.6% | +17.0% | +111.0% |
| PLTR | SELL · 10b5-1 | 2024-08-20 | 2024-08-22 | $32.23 | $56.2M | -4.4% | +18.6% | +94.2% |
| PLTR | SELL · 10b5-1 | 2024-05-20 | 2024-05-22 | $21.37 | $24.2M | +3.3% | +11.5% | +51.1% |
| PLTR | SELL · 10b5-1 | 2024-02-20 | 2024-02-22 | $23.08 | $49.6M | +1.2% | +4.2% | -10.0% |
| PLTR | SELL · 10b5-1 | 2024-02-07 | 2024-02-09 | $22.42 | $21.9M | -1.3% | +6.0% | -11.6% |
| PLTR | SELL · 10b5-1 | 2023-11-20 | 2023-11-22 | $21.06 | $30.6M | -5.6% | -10.2% | +20.7% |
| PLTR | SELL · 10b5-1 | 2023-08-23 | 2023-08-23 | $15.40 | $5.0M | -3.1% | -10.0% | +26.1% |
| PLTR | SELL | 2023-08-21 | 2023-08-22 | $14.66 | $12.0M | +4.7% | -3.4% | +47.2% |
| PLTR | SELL · 10b5-1 | 2023-06-05 | 2023-06-07 | $15.40 | $5.0M | +9.3% | +6.2% | +5.3% |
| PLTR | SELL | 2023-05-22 | 2023-05-23 | $11.76 | $9.6M | +26.5% | +16.6% | +20.3% |
| PLTR | SELL | 2023-02-21 | 2023-02-23 | $8.33 | $7.2M | +4.3% | +1.3% | +54.0% |
| PLTR | SELL | 2022-12-06 | 2022-12-08 | $7.09 | $17.2M | -10.6% | -7.9% | +15.2% |
| PLTR | SELL | 2021-11-26 | 2021-11-30 | $20.82 | $23.9M | -7.7% | -9.0% | -42.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.