Biggest insider sales, week of Aug 31–Sep 6, 2026: Tutor Perini (TPC) tops the list at $197.7M
Insiders reported 1,768 sales of common stock across 558 companies in SEC Form 4 filings. These are the five U.S. companies with the most insider selling by dollar value; 28% of that value was sold under pre-arranged 10b5-1 trading plans.
Industry: General Bldg Contractors - Nonresidential Bldgs. SEC ↗
One insider sold 2,310,000 shares in 3 transactions at an average of $85.59 a share.
- TUTOR RONALD N, Director: sold 1,500,000 shares at $85.57 ($128.36M) on Aug 31, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
- TUTOR RONALD N, Director: sold 800,000 shares at $85.57 ($68.46M) on Aug 31, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
- TUTOR RONALD N, Director: sold 10,000 shares at $89.86 ($898.6K) on Aug 31, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
Industry: Computer Communications Equipment. SEC ↗
2 insiders sold 300,612 shares in 8 transactions at an average of $202.59 a share, including the CEO or CFO. All of it was sold under pre-arranged 10b5-1 trading plans.
- BECHTOLSHEIM ANDREAS, 10% owner: sold 73,794 shares at $202.71 ($14.96M) on Aug 27, 2026 under a 10b5-1 plan. Filed Aug 31, 2026. View Form 4 on SEC.gov ↗
- BECHTOLSHEIM ANDREAS, 10% owner: sold 70,054 shares at $201.74 ($14.13M) on Aug 27, 2026 under a 10b5-1 plan. Filed Aug 31, 2026. View Form 4 on SEC.gov ↗
- BECHTOLSHEIM ANDREAS, 10% owner: sold 64,510 shares at $204.82 ($13.21M) on Aug 27, 2026 under a 10b5-1 plan. Filed Aug 31, 2026. View Form 4 on SEC.gov ↗
All insider trades in ANET →5 smaller transactions not listedIndustry: Laboratory Analytical Instruments. SEC ↗
One insider sold 263,560 shares in 12 transactions at an average of $217.03 a share.
- Meister Keith A., Director: sold 100,650 shares at $218.39 ($21.98M) on Sep 4, 2026. Filed Sep 4, 2026. View Form 4 on SEC.gov ↗
- Meister Keith A., Director: sold 57,488 shares at $213.20 ($12.26M) on Sep 2, 2026. Filed Sep 4, 2026. View Form 4 on SEC.gov ↗
- Meister Keith A., Director: sold 14,196 shares at $217.29 ($3.08M) on Sep 3, 2026. Filed Sep 4, 2026. View Form 4 on SEC.gov ↗
All insider trades in ILMN →9 smaller transactions not listedIndustry: Semiconductors & Related Devices. SEC ↗
2 insiders sold 195,499 shares in 36 transactions at an average of $279.80 a share. All of it was sold under pre-arranged 10b5-1 trading plans.
- ALBA MANUEL, Director: sold 59,379 shares at $280.04 ($16.63M) on Sep 1, 2026 under a 10b5-1 plan. Filed Sep 3, 2026. View Form 4 on SEC.gov ↗
- ALBA MANUEL, Director: sold 37,176 shares at $279.28 ($10.38M) on Sep 1, 2026 under a 10b5-1 plan. Filed Sep 3, 2026. View Form 4 on SEC.gov ↗
- ALBA MANUEL, Director: sold 20,991 shares at $278.33 ($5.84M) on Sep 1, 2026 under a 10b5-1 plan. Filed Sep 3, 2026. View Form 4 on SEC.gov ↗
All insider trades in ALAB →33 smaller transactions not listedIndustry: Services-Prepackaged Software. SEC ↗
3 insiders sold 490,474 shares in 10 transactions at an average of $93.42 a share.
- Banon Shay, Chief Technology Officer: sold 108,423 shares at $96.17 ($10.43M) on Aug 31, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
- Banon Shay, Chief Technology Officer: sold 97,599 shares at $92.48 ($9.03M) on Sep 1, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
- Banon Shay, Chief Technology Officer: sold 97,199 shares at $89.71 ($8.72M) on Sep 2, 2026. Filed Sep 2, 2026. View Form 4 on SEC.gov ↗
All insider trades in ESTC →7 smaller transactions not listed
How this report is made
This report is compiled automatically from SEC Form 4 filings received during the week shown. Companies are ranked by the total dollar value of insider sales (transaction code S, open-market or private sale). “Insiders” include officers, directors and owners of more than 10% of a company, which can be investment funds. Only common stock is counted: preferred shares, units and derivatives are left out, as are filings that fail our data checks. When a fund and the insider who controls it both report the same trade, it is counted once. Only U.S.-based companies are ranked, because insiders of foreign companies sometimes report prices in their local currency.
Every figure comes from the original filing, which is linked in each entry; the filing is the authoritative record. This is information, not investment advice. See the methodology, disclaimer and corrections policy.