Landstar System, Inc.
US ˙ NasdaqGS ˙ US5150981018

SecurityLSTR / Landstar System, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership76,183 shares
Latest Disclosed Value $ 10,947,763
Sei Investments Co reports 17.10% increase in ownership of LSTR / Landstar System, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 76,183 shares of Landstar System, Inc. (US:LSTR) valued at $10,947,497 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 65,057 shares of Landstar System, Inc.. This represents a change in shares of 17.10% during the quarter. The current value of the position is $16,398,391 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)
2026-02-13 2025-12-31 13F LANDSTAR SYS COM 515098101 76,183 11,126 17.10 10,948 37.28 0.0108
2025-11-13 2025-09-30 13F LANDSTAR SYS COM 515098101 65,057 1,059 1.65 7,975 -10.37 0.0086
2025-08-14 2025-06-30 13F LANDSTAR SYS COM 515098101 63,998 -2,765 -4.14 8,897 -11.25 0.0103
2025-05-14 2025-03-31 13F/A-1 LANDSTAR SYS COM 515098101 66,763 1,515 2.32 10,026 -10.59 0.0129
2025-05-13 2025-03-31 13F LANDSTAR SYS COM 515098101 59,517 -5,731 9,853 0.0107
2025-02-11 2024-12-31 13F LANDSTAR SYS COM 515098101 65,248 -4,539 -6.50 11,214 -14.92 0.0144
2024-11-12 2024-09-30 13F LANDSTAR SYS COM 515098101 69,787 1,122 1.63 13,180 4.04 0.0171
2024-08-13 2024-06-30 13F LANDSTAR SYS COM 515098101 68,665 -3,583 -4.96 12,667 -9.03 0.0179
2024-05-07 2024-03-31 13F LANDSTAR SYS COM 515098101 72,248 10,978 17.92 13,926 17.37 0.0204
2024-02-14 2023-12-31 13F LANDSTAR SYS COM 515098101 61,270 2,495 4.25 11,865 14.10 0.0190
2023-11-14 2023-09-30 13F LANDSTAR SYS COM 515098101 58,775 8,136 16.07 10,399 6.64 0.0187
2023-08-11 2023-06-30 13F LANDSTAR SYS COM 515098101 50,639 -4,192 -7.65 9,751 -0.79 0.0170
2023-05-12 2023-03-31 13F LANDSTAR SYS COM 515098101 54,831 13,034 31.18 9,830 44.37 0.0183
2023-02-10 2022-12-31 13F LANDSTAR SYS COM 515098101 41,797 -8,270 -16.52 6,808 -5.78 0.0151
2022-11-14 2022-09-30 13F LANDSTAR SYS COM 515098101 50,067 -2,907 -5.49 7,226 -4.72 0.0161
2022-08-15 2022-06-30 13F LANDSTAR SYS COM 515098101 52,974 14,376 37.25 7,584 32.10 0.0164
2022-05-13 2022-03-31 13F LANDSTAR SYS COM 515098101 38,598 -4,372 -10.17 5,741 -24.02 0.0115
2022-02-14 2021-12-31 13F LANDSTAR SYS COM 515098101 42,970 1,111 2.65 7,556 16.62 0.0142
2021-11-12 2021-09-30 13F LANDSTAR SYS COM 515098101 41,859 -28,730 -40.70 6,479 -41.29 0.0136
2021-08-06 2021-06-30 13F LANDSTAR SYS COM 515098101 70,589 -12,224 -14.76 11,036 -14.98 0.0245
2021-05-12 2021-03-31 13F LANDSTAR SYS COM 515098101 82,813 31,019 59.89 12,981 86.21 0.0327
2021-02-08 2020-12-31 13F LANDSTAR SYS COM 515098101 51,794 26,169 102.12 6,971 115.69 0.0180
2020-12-04 2020-09-30 13F/A-1 LANDSTAR SYS COM 515098101 25,625 -18,623 -42.09 3,232 -35.01 0.0094
2020-11-06 2020-09-30 13F LANDSTAR SYS COM 515098101 31,106 -13,142 3,920 9,438.4884
2020-08-17 2020-06-30 13F/A-1 LANDSTAR SYS COM 515098101 44,248 -5,618 -11.27 4,973 4.21 0.0154
2020-08-11 2020-06-30 13F LANDSTAR SYS COM 515098101 50,162 296 5,690 15,434.4279
2020-05-14 2020-03-31 13F LANDSTAR SYS COM 515098101 49,866 -4,911 -8.97 4,772 -23.50 0.0175
2020-02-06 2019-12-31 13F LANDSTAR SYS COM 515098101 54,777 -890 -1.60 6,238 -0.46 0.0186
2019-11-12 2019-09-30 13F LANDSTAR SYS COM 515098101 55,667 2,563 4.83 6,267 9.30 0.0160
2019-08-14 2019-06-30 13F LANDSTAR SYS COM 515098101 53,104 6,289 13.43 5,734 11.97 0.0187
2019-05-15 2019-03-31 13F LANDSTAR SYS COM 515098101 46,815 12,312 35.68 5,121 26.07 0.0172
2019-02-13 2018-12-31 13F LANDSTAR SYS COM 515098101 34,503 323 0.94 4,062 -2.59 0.0145
2018-11-08 2018-09-30 13F LANDSTAR SYS COM 515098101 34,180 -12,009 -26.00 4,170 -17.33 0.0151
2018-08-03 2018-06-30 13F LANDSTAR SYS COM 515098101 46,189 -21,342 -31.60 5,044 -31.89 0.0171
2018-05-11 2018-03-31 13F LANDSTAR SYS COM 515098101 67,531 -8,481 -11.16 7,406 -6.40 0.0284
2018-02-08 2017-12-31 13F LANDSTAR SYS COM 515098101 76,012 3,212 4.41 7,912 9.04 0.0275
2017-11-06 2017-09-30 13F LANDSTAR SYS COM 515098101 72,800 29,407 67.77 7,256 95.37 0.0258
2017-07-31 2017-06-30 13F LANDSTAR SYS COM 515098101 43,393 -4,187 -8.80 3,714 -8.86 0.0148
2017-05-05 2017-03-31 13F LANDSTAR SYS COM 515098101 47,580 -3,509 -6.87 4,075 -6.49 0.0179
2017-02-02 2016-12-31 13F LANDSTAR SYS COM 515098101 51,089 21,075 70.22 4,358 113.31 0.0211
2016-11-04 2016-09-30 13F LANDSTAR SYS COM 515098101 30,014 10,735 55.68 2,043 54.31 0.0104
2016-08-11 2016-06-30 13F LANDSTAR SYS COM 515098101 19,279 11,726 155.25 1,324 171.31 0.0079
2016-05-10 2016-03-31 13F/A-1 LANDSTAR SYS COM 515098101 7,553 -37,554 -83.26 488 -81.55 0.0030
2016-02-03 2015-12-31 13F LANDSTAR SYS COM 515098101 45,107 -32,488 -41.87 2,645 -46.29 0.0161
2015-11-02 2015-09-30 13F/A-1 LANDSTAR SYS COM 515098101 77,595 1,678 2.21 4,925 -2.97 0.0452
2015-10-30 2015-09-30 13F LANDSTAR SYS COM 515098101 77,595 4,927
2015-08-07 2015-06-30 13F/A-1 LANDSTAR SYS COM 515098101 75,917 156 0.21 5,076 1.10 0.0459
2015-08-04 2015-06-30 13F LANDSTAR SYS COM 515098101 75,917 156 5,076 0.0459
2015-05-14 2015-03-31 13F/A-1 LANDSTAR SYS COM 515098101 75,761 7,313 10.68 5,021 1.07 0.0436
2015-05-01 2015-03-31 13F LANDMARK INFRASTRUCTURE COM UNIT LTD 515098101 75,761 5,021
2015-02-10 2014-12-31 13F LANDSTAR SYS COM 515098101 68,448 68,448 4,968 0.0439
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.