MAIR insider buys $219 million, and the week's other big purchases
The week's notable insider trades and Congress reports, from SEC filings.
The week in one paragraph
Selling outweighed buying, as it does most weeks: insiders reported 378 purchases worth $751.8 million and 1099 sales worth $4.03 billion, 37% of the sales under pre-arranged 10b5-1 plans. The largest purchase was at MAIR, where Ernesto Bertarelli bought $219 million. 3 companies had several insiders buying.
Biggest insider buys
MAIR 10% owner Ernesto Bertarelli bought 8,770,524 shares for $219 million, adding 23% to their holding.
RSG 10% owner Cascade Investment, LLC bought 301,639 shares for $67.2 million.
RSG 10% owner Cascade Investment, LLC bought 284,600 shares for $62.5 million.
RSG 10% owner Cascade Investment, LLC bought 275,500 shares for $61 million.
RSG 10% owner Cascade Investment, LLC bought 269,477 shares for $59.8 million.
Several insiders buying
MAIR: 2 insiders bought a combined $219.6 million in the 30 days to this week.
BABA: 2 insiders bought a combined $25.7 million in the 30 days to this week.
SUJA: 2 insiders bought a combined $20.5 million in the 30 days to this week.
Largest sales
ALH: Bdt Capital Partners, LLC sold $589.6 million.
AVAH: Paul R. Vigano sold $166.8 million.
AVAH: Robert M. Williams Jr sold $166.8 million.
Congress trades reported this week
Rep. Michael A. Rulli (R-OH-6): partial sell of GOOGL, $50K–$100K, traded 2026-08-24.
Rep. Kelly Morrison (D-MN-3): sell of ACN, $15K–$50K, traded 2026-08-11 (spouse).
Rep. Jared Moskowitz (D-FL-23): buy of AMAT, $1K–$15K, traded 2026-07-13.
Rep. Jared Moskowitz (D-FL-23): sell of STE, $1K–$15K, traded 2026-07-13.
Rep. Jared Moskowitz (D-FL-23): partial sell of GWW, $1K–$15K, traded 2026-07-13.
Get it by email
The week's insider trading in one short email: what executives bought with their own money, and what it means.
- ▲The biggest insider purchases of the week
- ◆Cluster buys: several insiders buying the same stock
- ★New moves from famous funds and Congress
Sources
- Form 4: Ernesto Bertarelli, MAIR · filed 2026-08-27
- Form 4: Cascade Investment, LLC, RSG · filed 2026-08-26
- Form 4: Cascade Investment, LLC, RSG · filed 2026-08-28
- Form 4: Cascade Investment, LLC, RSG · filed 2026-08-28
- Form 4: Cascade Investment, LLC, RSG · filed 2026-08-26
- Form 4: Bdt Capital Partners, LLC, ALH · filed 2026-08-24
- Form 4: Paul R. Vigano, AVAH · filed 2026-08-24
- Form 4: Robert M. Williams Jr, AVAH · filed 2026-08-24
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.