KOD insider buys $60.5 million, and the week's other big purchases
The week's notable insider trades and Congress reports, from SEC filings.
By Sepehr Parsa · Founder and editor, WallStPalThe week in one paragraph
Selling outweighed buying, as it does most weeks: insiders reported 294 purchases worth $569.1 million and 488 sales worth $1.38 billion, 62% of the sales under pre-arranged 10b5-1 plans. The largest purchase was at KOD, where Baker Bros. Advisors LP bought $60.5 million. 3 companies had several insiders buying.
Biggest insider buys
KOD director Baker Bros. Advisors LP bought 681,866 shares for $60.5 million.
KOD director Baker Bros. Advisors LP bought 807,840 shares for $58.6 million.
LEN 10% owner Berkshire Hathaway Inc bought 642,821 shares for $52.4 million, opening a new position.
KOD director Baker Bros. Advisors LP bought 418,323 shares for $35 million.
GPI 10% owner Conifer Management, LLC bought 133,472 shares for $32.5 million.
Several insiders buying
ADRX: 5 insiders bought a combined $87.7 million in the 30 days to this week.
GME: 5 insiders bought a combined $76.4 million in the 30 days to this week.
BBD: 22 insiders bought a combined $28 million in the 30 days to this week.
Largest sales
INNV: Ignite Aggregator LP sold $92.5 million.
INNV: Tco Group Holdings, L.P. sold $92.5 million.
BEKE: Yongdong Peng sold $84.6 million.
Congress trades reported this week
Sen. Sheldon Whitehouse (D-RI): partial sell of JPM, $15K–$50K, traded 2026-09-04 (spouse).
Sen. Sheldon Whitehouse (D-RI): partial sell of JPM, $15K–$50K, traded 2026-09-04.
Rep. Michael A. Rulli (R-OH-6): partial sell of MSFT, $1K–$15K, traded 2026-09-28.
Rep. Michael A. Rulli (R-OH-6): buy of GS, $1K–$15K, traded 2026-09-03.
Rep. Michael A. Rulli (R-OH-6): partial sell of WFC, $1K–$15K, traded 2026-09-03.
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: Baker Bros. Advisors LP, KOD · filed 2026-09-30
- Form 4: Baker Bros. Advisors LP, KOD · filed 2026-09-30
- Form 4: Berkshire Hathaway Inc, LEN · filed 2026-09-30
- Form 4: Baker Bros. Advisors LP, KOD · filed 2026-09-30
- Form 4: Conifer Management, LLC, GPI · filed 2026-09-30
- Form 4: Ignite Aggregator LP, INNV · filed 2026-09-28
- Form 4: Tco Group Holdings, L.P., INNV · filed 2026-09-28
- Form 4: Yongdong Peng, BEKE · filed 2026-09-29
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.