One investor made 59% of all S&P 500 insider stock purchases in the last 12 months
Published 2026-11-07 · By Pushbuild · Data: SEC Form 4 Insider Trades
Cascade Investment, L.L.C. bought $1.58 billion of Republic Services stock on the open market across 108 trades, 59% of the $2.68 billion that S&P 500 insiders spent buying their own companies' shares. Berkshire Hathaway's $382.9 million of Lennar was a distant second.
“Section 16 of the Securities Exchange Act of 1934 requires senior executives, directors, and 10%+ shareholders (“insiders”) to make initial and ongoing filings about their company stock holdings”
— SEC Insider Transactions Data Sets
| Company | Open-market insider purchases | Trades | Buyers | Largest buyer |
|---|---|---|---|---|
| Republic Services (RSG) | $1.58B | 108 | 2 | CASCADE INVESTMENT, L.L.C. |
| Lennar (LEN) | $382.9M | 29 | 1 | BERKSHIRE HATHAWAY INC |
| MGM Resorts (MGM) | $128.8M | 6 | 2 | IAC Inc. |
| Robinhood Markets (HOOD) | $55.3M | 3 | 1 | Malka Meyer |
| KKR & Co. (KKR) | $50.9M | 13 | 5 | NUTTALL SCOTT C |
| Rollins, Inc. (ROL) | $50.0M | 1 | 1 | R. Randall Rollins Voting Trust U/A dated August 25, 1994 |
| International Flavors & Fragrances (IFF) | $32.5M | 13 | 4 | FRIBOURG PAUL J |
| Norwegian Cruise Line Holdings (NCLH) | $30.9M | 17 | 13 | PAGLIUCA STEPHEN G |
| Salesforce (CRM) | $27.5M | 6 | 3 | Morfit G Mason |
| Nasdaq, Inc. (NDAQ) | $21.7M | 3 | 2 | INVESTOR AB |
Insiders at 163 S&P 500 companies bought stock at all. Officers and directors, as opposed to 10% owners, accounted for $568.9 million of the total.
Caveats
Form 4 filings dated November 1, 2025 to November 6, 2026, transaction code P (open-market or private purchase) in common stock only, for current S&P 500 members. Duplicate rows from joint filers are counted once (same company, date, shares and price). "Insider" is the SEC's Section 16 definition: officers, directors and holders of more than 10% of a class of stock.
Sources
- SEC Insider Transactions Data Sets, read through the Pushbuild SEC Form 4 Insider Trades API on 2026-11-07
Data as of 2026-11-07. Every figure in this post is in the table above and the CSV below.
Download the data behind this post: b6-sp500-insider-purchases-12m.csv
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