Insider Trading Report: May 2026
Every open-market purchase and sale company insiders reported on Form 4 in May 2026: 1,757 purchases worth $9.62B and 4,811 sales worth $19.6B.
Biggest purchases
| Filed | Ticker | Insider | Type | Value | Score |
|---|---|---|---|---|---|
| May 6 | SVRE | Visionwave Holdings, Inc.Director | ▲ BUY | $4.32B | 37 |
| May 6 | SVRE | Visionwave Holdings, Inc.Director | ▲ BUY | $1.83B | 29 |
| May 4 | RIVN | Volkswagen AG10% owner | ▲ BUY | $999.9M | 47 |
| May 4 | JEF | Sumitomo Mitsui Financial Group, Inc.Director | ▲ BUY | $310.0M | 54 |
| May 1 | PSUS | William A. AckmanCEO | ▲ BUY | $196.0M | 70 |
| May 19 | BXDC | Blackstone Treasury Holdings III LLC10% owner | ▲ BUY | $189.7M | 58 |
| May 27 | LILA | John C. MaloneOther insider | ▲ BUY | $107.1M | 59 |
| May 13 | ARTV | Ra Capital Management, L.P.Director | ▲ BUY | $75.0M | 56 |
| May 13 | RSG | Cascade Investment, LLC10% owner | ▲ BUY | $74.0M | 25 |
| May 19 | BRCB | Cynosure Group, LLCDirector | ▲ BUY | $73.0M | 62 |
| May 18 | RSG | Cascade Investment, LLC10% owner | ▲ BUY | $63.9M | 25 |
| May 29 | RIAEX | Rbc Global Asset Management (u.s.) Inc.10% owner | ▲ BUY | $49.9M | 43 |
| May 6 | COAG | Ra Capital Management, L.P.Director | ▲ BUY | $48.1M | 47 |
| May 1 | PSUS | William A. AckmanCEO | ▲ BUY | $44.9M | 70 |
| May 12 | AXICY | Batista De Lima Filho PedroDirector | ▲ BUY | $43.5M | 51 |
Cluster buys
Three or more different insiders buying the same stock in the month.
- TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD · 28 insiders
- VITL Vital Farms, Inc. · 11 insiders
- UBCP UNITED BANCORP INC /OH/ · 9 insiders
- XRN Chiron Real Estate Inc. · 9 insiders
- HDSN HUDSON TECHNOLOGIES INC /NY · 8 insiders
- BXDC Blackstone Digital Infrastructure Trust Inc. · 8 insiders
- PSUS Pershing Square USA, Ltd. · 8 insiders
- ODTX Odyssey Therapeutics, Inc. · 7 insiders
- FLUT Flutter Entertainment plc · 7 insiders
- SRAD Sportradar Group AG · 7 insiders
Biggest sales
| Filed | Ticker | Insider | Type | Value |
|---|---|---|---|---|
| May 20 | CARR | Maximilian ViessmannDirector | ▼ SELL | $750.0M |
| May 15 | DOCN | Access Industries Holdings LLC10% owner | ▼ SELL | $496.0M |
| May 11 | CRGY | Liberty Mutual Foundation Inc.10% owner | ▼ SELL | $402.0M |
| May 8 | INGM | Platinum Equity, LLC10% owner | ▼ SELL | $361.2M |
| May 14 | JHG | Brian M. BaldwinDirector | ▼ SELL | $320.6M |
| May 14 | JHG | Joshua D. FrankDirector | ▼ SELL | $320.6M |
| May 18 | SITM | Megachips Corp /fi10% owner | ▼ SELL | $311.8M |
| May 15 | SHC | Warburg Pincus & Co.Director | ▼ SELL | $289.8M |
| May 15 | SHC | Warburg Pincus & Co.Director | ▼ SELL | $289.8M |
| May 29 | SYM | Softbank Group Corp.10% owner | ▼ SELL | $281.8M |
By sector
| Sector | Bought | Sold |
|---|---|---|
| Technology | $6.35B | $6.96B |
| Consumer Discretionary | $1.16B | $2.94B |
| Health Care | $429.3M | $2.14B |
| Financials | $401.2M | $1.70B |
| Utilities | $259.6M | $299.5M |
| Real Estate | $216.0M | $145.3M |
| Communication Services | $113.1M | $281.9M |
| Industrials | $94.1M | $3.27B |
| Materials | $42.5M | $483.9M |
| Energy | $28.2M | $1.02B |
| Consumer Staples | $25.9M | $174.3M |
Examples
- The largest purchase of the month: Visionwave Holdings, Inc. (Director) bought $4.32B of SaverOne 2014 Ltd..
- At TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD, 28 different insiders bought shares in the same month.
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.