Week of Sep 21 – Sep 25, 2026
By Trabud · Insider-trading data from SEC EDGAR
Published:
The summary paragraph is drafted by an AI model from the week's ranked filings and published automatically; every figure in the tables comes directly from SEC Form 4 filings. How this page is built. Not investment advice.
Berkshire Hathaway's Warren Buffett drove the week's insider buying with two Lennar (LEN) purchases totaling roughly $349 million, while Grab CEO Anthony Tan ($29.9M), Globalstar director James Monroe III ($29.8M), and GameStop CEO Ryan Cohen ($26.4M) also made notable buys. Selling was dominated by semiconductor and software insiders, led by NVIDIA director Mark Stevens ($300M) and Broadcom director Henry Samueli ($250M), with CrowdStrike CFO Burt Podbere ($125M) and Snowflake director Frank Slootman ($100M) adding to the tech-heavy distribution. The pattern shows concentrated bullish conviction in housing and select single names against broad profit-taking across high-flying chip and cloud stocks.
- Total bought
- $526.9M
- 10 filings
- Total sold
- $1.2B
- 10 filings
- Companies
- 18
- tracked this week
- Net flow
- −$638.9M
- net selling
Top insider buys
| # | Company | Insider | Shares | Value |
|---|---|---|---|---|
| 1 | LEN◇2LENNAR CORP /NEW/ | BERKSHIRE HATHAWAY INCOther | 2.7M | $212.4M |
| 2 | LEN◇2LENNAR CORP /NEW/ | BERKSHIRE HATHAWAY INCOther | 1.7M | $136.4M |
| 3 | GRABGrab Holdings Ltd | Anthony Ping Yeow TanCEO | 10.3M | $29.9M |
| 4 | GSATGlobalstar, Inc. | James Monroe IIIDirector | 361.6K | $29.8M |
| 5 | GMEGameStop Corp. | Ryan CohenCEO | 1.2M | $26.4M |
| 6 | LNBIXLincoln Bain Capital Total Credit Fund | Lincoln Financial Investments CorpOther | 2.5M | $25.0M |
| 7 | ETRA◇2Electra Therapeutics, Inc. | Carl L GordonDirector | 1.3M | $20.0M |
| 8 | ETRA◇2Electra Therapeutics, Inc. | ORBIMED ADVISORS LLCDirector | 1.3M | $20.0M |
| 9 | GPIGROUP 1 AUTOMOTIVE INC | Conifer Management, L.L.C.Other | 65.7K | $16.9M |
| 10 | CRBDCorebridge Financial, Inc. | NIPPON LIFE INSURANCE COOther | 296.9K | $10.2M |
Top insider sells
| # | Company | Insider | Shares | Value |
|---|---|---|---|---|
| 1 | NVDANVIDIA CORP | Mark A StevensDirector | 1.4M | $300.1M |
| 2 | AVGOBroadcom Inc. | Henry SamueliDirector | 702.2K | $250.0M |
| 3 | CRWDCrowdStrike Holdings, Inc. | Burt W. PodbereCFO | 480.0K | $125.5M |
| 4 | BZKanzhun Ltd | Peng Jonathan ZhaoCEO | 15.2M | $110.0M |
| 5 | SNOWSnowflake Inc. | Frank SlootmanDirector | 300.0K | $100.3M |
| 6 | ANETArista Networks, Inc. | Andreas BechtolsheimOther | 300.0K | $59.7M |
| 7 | ASPNASPEN AEROGELS INC | Wood River Capital, LLCOther | 12.3M | $58.1M |
| 8 | TWSTTwist Bioscience Corp | Emily M. LeproustCEO | 356.5K | $56.3M |
| 9 | SNDKSandisk Corp | David GoeckelerCEO | 33.8K | $53.3M |
| 10 | SPCXSPACE EXPLORATION TECHNOLOGIES CORP | Gwynne ShotwellCOO | 342.2K | $52.5M |
Quick Answer
What were the biggest insider trades the week of Sep 21 – Sep 25, 2026?
For the week of Sep 21 – Sep 25, 2026, the biggest buy was $212.4M of LEN by BERKSHIRE HATHAWAY INC; the biggest sale was $300.1M of NVDA by Mark A Stevens.
Source: SEC EDGAR Form 4
Frequently Asked Questions
Which insider bought the most the week of Sep 21 – Sep 25, 2026?
BERKSHIRE HATHAWAY INC (Other) bought $212.4M of LENNAR CORP /NEW/ (LEN) — the largest insider purchase of the week by dollar value.
Which insider sold the most the week of Sep 21 – Sep 25, 2026?
Mark A Stevens (Director) sold $300.1M of NVIDIA CORP (NVDA) — the largest insider sale of the week by dollar value.
How are these insider trades ranked?
Trabud ranks each week's SEC Form 4 filings by total transaction dollar value, surfacing the largest open-market insider buys and sells. All data comes directly from official SEC EDGAR filings.
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