Landstar System, Inc. (LSTR) ownership: insiders 1% · institutions 108% (13F 2026-03-31). Insider activity, 90 days: 2 sales, 0 open-market buys. 2 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Vanguard | 3555932.00 | $570.05M | 10.5% | 2026-03-31 |
| Kayne Anderson Rudnick Investment Management LLC | 3432243.00 | $550.22M | 10.1% | 2026-03-31 |
| BlackRock | 3233185.00 | $518.31M | 9.5% | 2026-03-31 |
| AQR Capital Management | 1835604.00 | $293.79M | 5.4% | 2026-03-31 |
| Boston Partners | 1420213.00 | $227.76M | 4.2% | 2026-03-31 |
| State Street | 1123666.00 | $180.13M | 3.3% | 2026-03-31 |
| First Trust Advisors LP | 1118554.00 | $179.32M | 3.3% | 2026-03-31 |
| Victory Capital | 1074358.00 | $172.23M | 3.2% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-01 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-05 | |
| Sell | null | 2026-05-06 | |
| Sell | null | 2026-05-06 | |
| Sell | null | 2026-05-06 | |
| Sell | null | 2026-05-06 | |
| Sell | null | 2026-05-06 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.