Landstar System, Inc.
US ˙ NasdaqGS ˙ US5150981018

SecurityLSTR / Landstar System, Inc.
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership269,134 shares
Latest Disclosed Value $ 43,144,871
Boston Trust Walden Corp reports 11.61% decrease in ownership of LSTR / Landstar System, Inc.

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 269,134 shares of Landstar System, Inc. (US:LSTR) valued at $43,144,872 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 304,480 shares of Landstar System, Inc.. This represents a change in shares of -11.61% during the quarter. The current value of the position is $57,931,094 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 269,134 -35,346 -11.61 43,145 -1.39 0.2121
2026-01-28 2025-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 304,480 -21,890 -6.71 43,754 9.39 0.1980
2025-10-17 2025-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 326,370 -3,848 -1.17 40,000 -12.87 0.2935
2025-07-28 2025-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 330,218 56,998 20.86 45,907 11.86 0.3274
2025-04-21 2025-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 273,220 -4,300 -1.55 41,038 -13.96 0.2998
2025-01-24 2024-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 277,520 48,312 21.08 47,695 10.17 0.3347
2024-10-24 2024-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 229,208 -5,664 -2.41 43,291 -0.09 0.3012
2024-07-19 2024-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 234,872 44 0.02 43,329 -4.28 0.3214
2024-04-22 2024-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 234,828 -1,026 -0.44 45,265 -0.89 0.3229
2024-01-24 2023-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 235,854 2,722 1.17 45,673 10.72 0.3446
2023-10-18 2023-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 233,132 13,655 6.22 41,250 -2.39 0.3457
2023-07-24 2023-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 219,477 -37,954 -14.74 42,258 -8.43 0.3466
2023-04-19 2023-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 257,431 7,581 3.03 46,147 13.38 0.3983
2023-01-20 2022-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 249,850 -1,367 -0.54 40,701 12.22 0.3579
2022-10-19 2022-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 251,217 7,507 3.08 36,268 2.34 0.3593
2022-07-22 2022-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 243,710 1,070 0.44 35,440 -3.16 0.3349
2022-04-20 2022-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 242,640 5,800 2.45 36,597 -13.68 0.3023
2022-01-21 2021-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 236,840 -2,171 -0.91 42,399 12.40 0.3405
2021-10-25 2021-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 239,011 4,618 1.97 37,721 1.84 0.3340
2021-07-22 2021-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 234,393 -9,329 -3.83 37,038 -7.93 0.3293
2021-04-21 2021-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 243,722 -2,356 -0.96 40,228 21.40 0.3895
2021-01-15 2020-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 246,078 427 0.17 33,137 7.49 0.3535
2020-10-14 2020-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 245,651 10,484 4.46 30,827 16.72 0.3839
2020-07-23 2020-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 235,167 18,712 8.64 26,411 27.29 0.3566
2020-04-24 2020-03-31 13F/A-1 LANDSTAR SYSTEM COMMON STOCK 515098101 216,455 5,377 2.55 20,749 -13.67 0.3307
2020-04-21 2020-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 258,596 47,518 24,789 219,811.5769
2020-01-10 2019-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 211,078 3,714 1.79 24,035 2.96 0.2797
2019-10-21 2019-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 207,364 1,740 0.85 23,345 5.13 0.2935
2019-07-25 2019-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 205,624 -747 -0.36 22,205 -1.64 0.2890
2019-04-16 2019-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 206,371 3,753 1.85 22,575 16.46 0.3073
2019-01-17 2018-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 202,618 -12,426 -5.78 19,385 -26.11 0.3084
2018-10-23 2018-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 215,044 24,983 13.14 26,236 26.41 0.3614
2018-07-25 2018-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 190,061 -5,377 -2.75 20,755 -3.15 0.3046
2018-04-13 2018-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 195,438 -11,932 -5.75 21,430 -0.73 0.3252
2018-01-29 2017-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 207,370 27,714 15.43 21,588 20.58 0.3165
2017-10-13 2017-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 179,656 -2,839 -1.56 17,903 14.60 0.2788
2017-07-19 2017-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 182,495 -54,371 -22.95 15,622 -23.00 0.2510
2017-04-24 2017-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 236,866 -25,457 -9.70 20,288 -9.33 0.3162
2017-02-07 2016-12-31 13F/A-1 LANDSTAR SYSTEM COMMON STOCK 515098101 262,323 -9,784 -3.60 22,376 20.79 0.3528
2017-02-01 2016-12-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 262,323 22,376
2016-10-17 2016-09-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 272,107 58,984 27.68 18,525 26.60 0.3054
2016-08-09 2016-06-30 13F LANDSTAR SYSTEM COMMON STOCK 515098101 213,123 67,714 46.57 14,633 55.75 0.2499
2016-04-19 2016-03-31 13F LANDSTAR SYSTEM COMMON STOCK 515098101 145,409 145,409 9,395 0.1636
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.