Updated Jul 16, 2026
Karp Alexander C. has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.72B.

Alexander C. Karp is the co-founder and CEO of Palantir Technologies Inc., a leading analytical software company that specializes in data integration and analysis. Under his leadership, Palantir has grown significantly since its founding in 2003 and has become known for its work with both commercial and government clients.
| Role | See Remarks, Director |
|---|---|
| Notability | 70/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-23 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 122.2K | $136.61 | $16.69M |
| 2026-05-23 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 224.0K | $136.08 | $30.48M |
| 2026-05-23 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 27.6K | $135.09 | $3.73M |
| 2026-05-23 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 17.3K | $134.20 | $2.32M |
| 2026-05-23 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 6.6K | $132.95 | $882K |
| 2026-05-23 | PLTR | Palantir Technologies Inc. | J — Other acquisition / disposition | 397.7K | — | |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 8.6K | $135.67 | $1.17M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 35.7K | $134.87 | $4.81M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 19.3K | $133.73 | $2.58M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 20.3K | $132.82 | $2.69M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 6.2K | $132.01 | $816K |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | J — Other acquisition / disposition [10b5-1] | 90.0K | — | |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 23.2K | $135.73 | $3.15M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 110.8K | $134.83 | $14.94M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 104.8K | $133.76 | $14.02M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 124.3K | $132.86 | $16.52M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | S — Open-market sale [10b5-1] | 39.9K | $132.03 | $5.27M |
| 2026-02-25 | PLTR | Palantir Technologies Inc. | J — Other acquisition / disposition [10b5-1] | 403.0K | — | |
| 2025-08-20 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 1.9K | $157.18 | $292K |
| 2025-08-20 | PLTR | Palantir Technologies Inc. | S — Open-market sale | 78.4K | $156.15 | $12.25M |
Alexander C. Karp is the co-founder and CEO of Palantir Technologies Inc., a leading analytical software company that specializes in data integration and analysis. Under his leadership, Palantir has grown significantly since its founding in 2003 and has become known for its work with both commercial and government clients.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 58 open-market sales ($1.72B) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Karp Alexander C. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.