About this page
WallStPal explains public SEC filings and congressional stock trade reports in plain English. Nothing is for sale; the site is free and supported by ads.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- 13F
- A quarterly list of U.S. stocks held by an investment manager with more than $100 million, filed within 45 days after each quarter ends.
- STOCK Act
- A 2012 law that requires members of Congress to report stock trades by themselves, a spouse or a dependent child within 45 days.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
We read the long, boring forms that grown-ups file with the government and tell you what they say in normal words.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
Alex Karp
Co-founder and CEO of Palantir
- Full name
- Alexander Caedmon Karp
- Born
- 1967, New York City
- Latest filing
- Aug 24, 2026
Who is Alex Karp?
Karp holds a law degree from Stanford and a doctorate in social theory from Goethe University Frankfurt. He co-founded the data-analysis company Palantir with Peter Thiel and others in 2003 and has been its CEO since. Palantir listed in 2020, and he has reported large sales of stock under pre-set plans.
Stock they own
| Stock | Shares | Price | Value | 52-week change |
|---|---|---|---|---|
| PLTR Palantir Technologies Inc. | 6,432,258 | $189.67 | $1.22B | +$77.8M (+6.8%) |
Shares are the amounts reported as owned after their latest Form 4 for each company, directly and through trusts or other entities. Value uses the latest weekly price we hold. The 52-week change is what the same number of shares gained or lost in value; it is not their profit, because founders' cost is not disclosed and options and other holdings are not included.
Their trades on the chart
Each purchase (▲) and sale (▼) on the stock's weekly price. Green worked out (a purchase that rose, or a sale before a fall), red went against them, and hollow markers are purchases still held.
- ▼ SaleAug 20, 2026+9.9%sold before a rise
- ▼ SaleAug 20, 2026+9.1%sold before a rise
- ▼ SaleAug 20, 2026+8.5%sold before a rise
- ▼ SaleAug 20, 2026+8.1%sold before a rise
Purchases and sales
| Date | Stock | Type | Shares | Price | Value | How it went |
|---|---|---|---|---|---|---|
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 11,378 | $172.65 | $1.96M | +9.9% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 19,493 | $173.79 | $3.39M | +9.1% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 306,544 | $174.85 | $53.6M | +8.5% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 63,629 | $175.42 | $11.2M | +8.1% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 1,304 | $176.31 | $230K | +7.6% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 4,200 | $172.66 | $725K | +9.9% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 11,602 | $173.84 | $2.02M | +9.1% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 62,498 | $174.73 | $10.9M | +8.6% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 11,200 | $175.48 | $1.97M | +8.1% since |
| Aug 20, 2026 | PLTR | ▼ SELL10b5-1 | 500 | $176.30 | $88K | +7.6% since |
| May 20, 2026 | PLTR | ▼ SELL | 6,635 | $132.95 | $882K | +42.7% since |
| May 20, 2026 | PLTR | ▼ SELL | 17,310 | $134.20 | $2.32M | +41.3% since |
| May 20, 2026 | PLTR | ▼ SELL | 27,595 | $135.09 | $3.73M | +40.4% since |
| May 20, 2026 | PLTR | ▼ SELL | 224,009 | $136.08 | $30.5M | +39.4% since |
| May 20, 2026 | PLTR | ▼ SELL | 122,195 | $136.61 | $16.7M | +38.8% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 39,893 | $132.03 | $5.27M | +43.7% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 124,338 | $132.86 | $16.5M | +42.8% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 104,796 | $133.76 | $14.0M | +41.8% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 110,800 | $134.83 | $14.9M | +40.7% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 23,198 | $135.73 | $3.15M | +39.7% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 6,180 | $132.01 | $816K | +43.7% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 20,259 | $132.82 | $2.69M | +42.8% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 19,309 | $133.73 | $2.58M | +41.8% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 35,656 | $134.87 | $4.81M | +40.6% since |
| Feb 20, 2026 | PLTR | ▼ SELL10b5-1 | 8,596 | $135.67 | $1.17M | +39.8% since |
| Nov 21, 2025 | PLTR | ▼ SELL | 426 | $153.43 | $65K | +23.6% since |
| Nov 21, 2025 | PLTR | ▼ SELL | 44,593 | $156.26 | $6.97M | +21.4% since |
| Nov 21, 2025 | PLTR | ▼ SELL | 545 | $157.74 | $86K | +20.2% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 22,200 | $155.31 | $3.45M | +22.1% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 21,338 | $156.19 | $3.33M | +21.4% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 44,669 | $157.25 | $7.02M | +20.6% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 43,582 | $158.14 | $6.89M | +19.9% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 20,275 | $159.08 | $3.23M | +19.2% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 17,365 | $160.16 | $2.78M | +18.4% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 12,867 | $161.16 | $2.07M | +17.7% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 2,968 | $161.85 | $480K | +17.2% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 10,387 | $163.37 | $1.70M | +16.1% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 6,228 | $164.05 | $1.02M | +15.6% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 4,819 | $165.94 | $800K | +14.3% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 7,857 | $166.73 | $1.31M | +13.8% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 6,657 | $167.93 | $1.12M | +12.9% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 5,454 | $168.90 | $921K | +12.3% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 10,320 | $169.94 | $1.75M | +11.6% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 33,722 | $170.91 | $5.76M | +11.0% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 39,589 | $172.00 | $6.81M | +10.3% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 44,883 | $172.77 | $7.75M | +9.8% since |
| Nov 20, 2025 | PLTR | ▼ SELL | 4,145 | $173.41 | $719K | +9.4% since |
| Aug 21, 2025 | PLTR | ▼ SELL | 9,614 | $154.51 | $1.49M | +22.8% since |
| Aug 21, 2025 | PLTR | ▼ SELL | 96,285 | $155.53 | $15.0M | +22.0% since |
| Aug 21, 2025 | PLTR | ▼ SELL | 78,440 | $156.15 | $12.2M | +21.5% since |
| Aug 21, 2025 | PLTR | ▼ SELL | 1,855 | $157.18 | $292K | +20.7% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 7,521 | $143.12 | $1.08M | +32.5% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 6,298 | $143.81 | $906K | +31.9% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 6,327 | $144.87 | $917K | +30.9% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 17,574 | $146.05 | $2.57M | +29.9% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 9,527 | $146.93 | $1.40M | +29.1% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 5,761 | $148.07 | $853K | +28.1% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 14,439 | $149.04 | $2.15M | +27.3% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 16,069 | $149.93 | $2.41M | +26.5% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 4,619 | $151.05 | $698K | +25.6% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 12,837 | $152.05 | $1.95M | +24.7% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 30,194 | $153.12 | $4.62M | +23.9% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 50,567 | $154.16 | $7.80M | +23.0% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 28,379 | $154.89 | $4.40M | +22.5% since |
| Aug 20, 2025 | PLTR | ▼ SELL | 12,766 | $156.11 | $1.99M | +21.5% since |
| May 21, 2025 | PLTR | ▼ SELL | 14,394 | $125.26 | $1.80M | +51.4% since |
| May 21, 2025 | PLTR | ▼ SELL | 18,391 | $126.18 | $2.32M | +50.3% since |
| May 21, 2025 | PLTR | ▼ SELL | 7,040 | $126.85 | $893K | +49.5% since |
| May 20, 2025 | PLTR | ▼ SELL | 48,387 | $125.46 | $6.07M | +51.2% since |
| May 20, 2025 | PLTR | ▼ SELL | 180,000 | $126.24 | $22.7M | +50.2% since |
| May 20, 2025 | PLTR | ▼ SELL | 129,631 | $126.94 | $16.5M | +49.4% since |
| May 20, 2025 | PLTR | ▼ SELL | 964 | $127.71 | $123K | +48.5% since |
| Feb 21, 2025 | PLTR | ▼ SELL | 11,606 | $104.70 | $1.22M | +81.2% since |
| Feb 21, 2025 | PLTR | ▼ SELL | 23,611 | $105.63 | $2.49M | +79.6% since |
| Feb 21, 2025 | PLTR | ▼ SELL | 16,792 | $106.37 | $1.79M | +78.3% since |
| Feb 21, 2025 | PLTR | ▼ SELL | 16,003 | $107.55 | $1.72M | +76.4% since |
| Feb 21, 2025 | PLTR | ▼ SELL | 6,663 | $108.28 | $721K | +75.2% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 4,027 | $96.43 | $388K | +96.7% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 5,332 | $97.42 | $519K | +94.7% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 34,893 | $98.57 | $3.44M | +92.4% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 39,828 | $99.39 | $3.96M | +90.8% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 39,334 | $100.41 | $3.95M | +88.9% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 41,244 | $101.36 | $4.18M | +87.1% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 43,618 | $102.47 | $4.47M | +85.1% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 31,557 | $103.46 | $3.26M | +83.3% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 38,243 | $104.30 | $3.99M | +81.9% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 30,871 | $105.44 | $3.26M | +79.9% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 47,876 | $106.34 | $5.09M | +78.4% since |
| Feb 20, 2025 | PLTR | ▼ SELL | 1,067 | $107.09 | $114K | +77.1% since |
| Nov 22, 2024 | PLTR | ▼ SELL10b5-1 | 112,755 | $62.13 | $7.01M | +205.3% since |
| Nov 22, 2024 | PLTR | ▼ SELL10b5-1 | 1,203,304 | $63.12 | $75.9M | +200.5% since |
| Nov 22, 2024 | PLTR | ▼ SELL10b5-1 | 304,336 | $63.98 | $19.5M | +196.4% since |
| Nov 21, 2024 | PLTR | ▼ SELL10b5-1 | 56,343 | $61.29 | $3.45M | +209.5% since |
| Nov 21, 2024 | PLTR | ▼ SELL10b5-1 | 80,728 | $62.76 | $5.07M | +202.2% since |
| Nov 21, 2024 | PLTR | ▼ SELL10b5-1 | 1,059 | $63.07 | $67K | +200.7% since |
| Nov 21, 2024 | PLTR | ▼ SELL10b5-1 | 482,241 | $63.09 | $30.4M | +200.6% since |
| Nov 20, 2024 | PLTR | ▼ SELL10b5-1 | 52,512 | $60.68 | $3.19M | +212.6% since |
| Nov 20, 2024 | PLTR | ▼ SELL10b5-1 | 132,838 | $61.61 | $8.18M | +207.9% since |
| Nov 20, 2024 | PLTR | ▼ SELL10b5-1 | 81,213 | $62.21 | $5.05M | +204.9% since |
| Nov 20, 2024 | PLTR | ▼ SELL10b5-1 | 38,093 | $63.01 | $2.40M | +201.0% since |
| Nov 19, 2024 | PLTR | ▼ SELL10b5-1 | 98,480 | $63.00 | $6.20M | +201.1% since |
| Nov 18, 2024 | PLTR | ▼ SELL10b5-1 | 469,647 | $63.41 | $29.8M | +199.1% since |
| Nov 18, 2024 | PLTR | ▼ SELL10b5-1 | 537,849 | $64.44 | $34.7M | +194.3% since |
| Nov 15, 2024 | PLTR | ▼ SELL10b5-1 | 4,500,000 | $63.10 | $284.0M | +200.6% since |
| Nov 13, 2024 | PLTR | ▼ SELL10b5-1 | 1,823,602 | $63.12 | $115.1M | +200.5% since |
| Nov 7, 2024 | PLTR | ▼ SELL10b5-1 | 2,145,911 | $54.25 | $116.4M | +249.6% since |
| Nov 7, 2024 | PLTR | ▼ SELL10b5-1 | 2,057,401 | $55.69 | $114.6M | +240.6% since |
| Nov 7, 2024 | PLTR | ▼ SELL10b5-1 | 296,688 | $56.12 | $16.7M | +237.9% since |
| Nov 6, 2024 | PLTR | ▼ SELL10b5-1 | 4,500,000 | $54.04 | $243.2M | +251.0% since |
| Nov 5, 2024 | PLTR | ▼ SELL10b5-1 | 1,986,948 | $47.49 | $94.4M | +299.4% since |
| Nov 5, 2024 | PLTR | ▼ SELL10b5-1 | 1,356,759 | $48.26 | $65.5M | +293.0% since |
| Oct 29, 2024 | PLTR | ▼ SELL10b5-1 | 612,404 | $45.02 | $27.6M | +321.3% since |
| Oct 28, 2024 | PLTR | ▼ SELL10b5-1 | 3,337,048 | $45.02 | $150.2M | +321.3% since |
| Oct 25, 2024 | PLTR | ▼ SELL10b5-1 | 1,706,841 | $45.01 | $76.8M | +321.4% since |
| Sep 17, 2024 | PLTR | ▼ SELL10b5-1 | 4,048,271 | $36.26 | $146.8M | +423.1% since |
| Sep 17, 2024 | PLTR | ▼ SELL10b5-1 | 205,227 | $37.04 | $7.60M | +412.1% since |
| Sep 16, 2024 | PLTR | ▼ SELL10b5-1 | 4,500,000 | $36.07 | $162.3M | +425.8% since |
| Sep 13, 2024 | PLTR | ▼ SELL10b5-1 | 246,502 | $36.00 | $8.87M | +426.9% since |
"How it went": for a purchase, the change from the price paid to the price at their next sale of the same stock ("at sale") or to the latest price ("still held"). For a sale, the stock's change since; a fall means the sale came before a drop. Uses the prices in the filings and our latest weekly price.
Gifts, option exercises and other changes
| Date | Stock | What happened | Shares | Owned after |
|---|---|---|---|---|
| Aug 20, 2026 | PLTR | Converted | 402,348 | 6,834,606 |
| Aug 20, 2026 | PLTR | Converted | 90,000 | 6,522,258 |
| May 20, 2026 | PLTR | Converted | 397,744 | 6,830,002 |
| Feb 20, 2026 | PLTR | Converted | 403,025 | 6,835,283 |
| Feb 20, 2026 | PLTR | Converted | 90,000 | 6,522,258 |
| Nov 21, 2025 | PLTR | Converted | 45,564 | 6,477,822 |
| Nov 20, 2025 | PLTR | Converted | 359,325 | 6,791,583 |
| Aug 21, 2025 | PLTR | Converted | 186,194 | 6,618,452 |
| Aug 20, 2025 | PLTR | Converted | 222,878 | 6,655,136 |
| May 21, 2025 | PLTR | Converted | 39,825 | 6,472,083 |
| May 20, 2025 | PLTR | Converted | 358,982 | 6,791,240 |
| Feb 21, 2025 | PLTR | Converted | 74,675 | 6,506,933 |
| Feb 20, 2025 | PLTR | Converted | 357,890 | 6,790,148 |
| Nov 22, 2024 | PLTR | Converted | 1,620,395 | 8,052,653 |
| Nov 21, 2024 | PLTR | Converted | 138,130 | 6,570,388 |
| Nov 21, 2024 | PLTR | Converted | 482,241 | 6,914,499 |
| Nov 20, 2024 | PLTR | Converted | 266,563 | 6,698,821 |
| Nov 20, 2024 | PLTR | Converted | 38,093 | 6,470,351 |
| Nov 19, 2024 | PLTR | Converted | 98,480 | 6,530,738 |
| Nov 18, 2024 | PLTR | Converted | 1,007,496 | 7,439,754 |
| Nov 15, 2024 | PLTR | Converted | 4,500,000 | 10,932,258 |
| Nov 13, 2024 | PLTR | Converted | 1,823,602 | 8,255,860 |
| Nov 7, 2024 | PLTR | Converted | 4,500,000 | 10,932,258 |
| Nov 6, 2024 | PLTR | Converted | 4,500,000 | 10,932,258 |
| Nov 5, 2024 | PLTR | Converted | 3,343,707 | 9,775,965 |
| Oct 29, 2024 | PLTR | Converted | 612,404 | 7,044,662 |
| Oct 28, 2024 | PLTR | Converted | 3,337,048 | 9,769,306 |
| Oct 25, 2024 | PLTR | Converted | 1,706,841 | 8,139,099 |
| Sep 17, 2024 | PLTR | Converted | 4,253,498 | 10,685,756 |
| Sep 16, 2024 | PLTR | Converted | 4,500,000 | 10,932,258 |
| Sep 13, 2024 | PLTR | Converted | 246,502 | 6,678,760 |
| Aug 22, 2024 | PLTR | Converted | 575,072 | 7,007,330 |
Examples
Founders often sell stock on a schedule set months in advance (a 10b5-1 plan) to pay taxes or diversify, so a sale is not always a sign of doubt. A large open-market purchase with their own money is rarer and usually says more. In January 2016, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares, about $26 million, and the purchase was widely read as confidence in the bank.
Explain it like I'm 13
Imagine the founder of your favorite game company owns a giant pile of its shares. Each time they sell some, give some away, or buy more, they must tell the government within two business days. This page adds up those notes so you can see how big the pile is and what they have been doing with it.
From public SEC filings. Information, not investment advice. Values are estimates at the latest weekly price.