Lantronix, Inc.
US ˙ NasdaqCM ˙ US5165482036

SecurityLTRX / Lantronix, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership1,524,248 shares
Latest Disclosed Value $ 8,932,093
Vanguard Group Inc reports 2.52% increase in ownership of LTRX / Lantronix, Inc.

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 1,524,248 shares of Lantronix, Inc. (US:LTRX) valued at $8,932,093 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 1,486,791 shares of Lantronix, Inc.. This represents a change in shares of 2.52% during the quarter. The current value of the position is $11,355,648 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)
2026-01-29 2025-12-31 13F LANTRONIX COM NEW 516548203 1,524,248 37,457 2.52 8,932 31.47 0.0001
2025-11-07 2025-09-30 13F LANTRONIX COM NEW 516548203 1,486,791 40,890 2.83 6,795 63.75 0.0001
2025-08-11 2025-06-30 13F LANTRONIX COM NEW 516548203 1,445,901 0 0.00 4,150 15.25 0.0001
2025-05-09 2025-03-31 13F LANTRONIX COM NEW 516548203 1,445,901 16,307 1.14 3,600 -38.87 0.0001
2025-02-11 2024-12-31 13F LANTRONIX COM NEW 516548203 1,429,594 0 0.00 5,890 0.00 0.0001
2024-11-13 2024-09-30 13F LANTRONIX COM NEW 516548203 1,429,594 0 0.00 5,890 16.04 0.0001
2024-08-13 2024-06-30 13F LANTRONIX COM NEW 516548203 1,429,594 26,605 1.90 5,075 1.62 0.0001
2024-05-10 2024-03-31 13F LANTRONIX COM NEW 516548203 1,402,989 131,476 10.34 4,995 -32.98 0.0001
2024-03-11 2023-12-31 13F/A-1 LANTRONIX COM NEW 516548203 1,271,513 16,795 1.34 7,451 33.46 0.0002
2024-02-14 2023-12-31 13F LANTRONIX COM NEW 516548203 1,271,513 16,795 7,451 0.0001
2023-12-18 2023-09-30 13F/A-1 LANTRONIX COM NEW 516548203 1,254,718 97,188 8.40 5,583 14.57 0.0001
2023-11-14 2023-09-30 13F LANTRONIX COM NEW 516548203 1,254,718 97,188 5,583 0.0000
2023-08-14 2023-06-30 13F LANTRONIX COM NEW 516548203 1,157,530 143,227 14.12 4,873 10.70 0.0001
2023-07-14 2023-03-31 13F/A-1 LANTRONIX COM NEW 516548203 1,014,303 -442,456 -30.37 4,402 -30.05 0.0001
2023-05-15 2023-03-31 13F LANTRONIX COM NEW 516548203 1,014,303 -442,456 4,402 0.0001
2023-02-10 2022-12-31 13F LANTRONIX COM NEW 516548203 1,456,759 283,664 24.18 6,293 11.52 0.0002
2022-11-14 2022-09-30 13F LANTRONIX COM NEW 516548203 1,173,095 27,300 2.38 5,643 -8.45 0.0002
2022-08-12 2022-06-30 13F LANTRONIX COM NEW 516548203 1,145,795 49,519 4.52 6,164 -15.83 0.0002
2022-05-13 2022-03-31 13F LANTRONIX COM NEW 516548203 1,096,276 57,055 5.49 7,323 -10.00 0.0002
2022-02-14 2021-12-31 13F LANTRONIX COM NEW 516548203 1,039,221 -1,172 -0.11 8,137 34.38 0.0002
2021-11-12 2021-09-30 13F LANTRONIX COM NEW 516548203 1,040,393 0 0.00 6,055 12.80 0.0002
2021-08-13 2021-06-30 13F LANTRONIX COM NEW 516548203 1,040,393 -28,869 -2.70 5,368 9.84 0.0001
2021-05-14 2021-03-31 13F LANTRONIX COM NEW 516548203 1,069,262 29,630 2.85 4,887 5.87 0.0001
2021-02-12 2020-12-31 13F LANTRONIX COM NEW 516548203 1,039,632 252,199 32.03 4,616 21.89 0.0001
2020-11-16 2020-09-30 13F LANTRONIX COM NEW 516548203 787,433 129,880 19.75 3,787 55.27 0.0001
2020-08-14 2020-06-30 13F LANTRONIX COM NEW 516548203 657,553 4,115 0.63 2,439 90.85 0.0001
2020-05-15 2020-03-31 13F LANTRONIX COM NEW 516548203 653,438 133,522 25.68 1,278 -30.77 0.0001
2020-02-14 2019-12-31 13F LANTRONIX COM NEW 516548203 519,916 152 0.03 1,846 6.03 0.0001
2019-11-14 2019-09-30 13F LANTRONIX COM NEW 516548203 519,764 25,600 5.18 1,741 5.77 0.0001
2019-08-14 2019-06-30 13F LANTRONIX COM NEW 516548203 494,164 0 0.00 1,646 10.25 0.0001
2019-05-15 2019-03-31 13F LANTRONIX COM NEW 516548203 494,164 6,107 1.25 1,493 4.04 0.0001
2019-02-14 2018-12-31 13F LANTRONIX COM NEW 516548203 488,057 152,655 45.51 1,435 5.13 0.0001
2018-12-13 2018-09-30 13F/A-2 LANTRONIX COM NEW 516548203 335,402 48,175 16.77 1,365 67.28 0.0001
2018-11-23 2018-09-30 13F/A-1 LANTRONIX COM NEW 516548203 335,402 0 1,365 0.0001
2018-11-14 2018-09-30 13F LANTRONIX COM NEW 516548203 335,402 48,175 1,365
2018-08-14 2018-06-30 13F LANTRONIX COM NEW 516548203 287,227 -33,865 -10.55 816 23.45 0.0000
2018-05-15 2018-03-31 13F LANTRONIX COM NEW 516548203 321,092 -630 -0.20 661 1.69 0.0000
2018-02-14 2017-12-31 13F LANTRONIX COM NEW 516548203 321,722 -43,819 -11.99 650 -26.80 0.0000
2017-11-14 2017-09-30 13F LANTRONIX COM NEW 516548203 365,541 -54,985 -13.08 888 -13.45 0.0000
2017-08-24 2017-06-30 13F/A-1 LANTRONIX COM NEW 516548203 420,526 53,211 14.49 1,026 -28.00 0.0001
2017-08-11 2017-06-30 13F LANTRONIX COM NEW 516548203 420,526 53,211 1,026
2017-05-12 2017-03-31 13F LANTRONIX COM NEW 516548203 367,315 15,514 4.41 1,425 138.29 0.0001
2017-02-14 2016-12-31 13F LANTRONIX COM NEW 516548203 351,801 -1,274 -0.36 598 20.81 0.0000
2016-11-14 2016-09-30 13F LANTRONIX COM NEW 516548203 353,075 -27,679 -7.27 495 33.78 0.0000
2016-08-10 2016-06-30 13F LANTRONIX COM NEW 516548203 380,754 -400 -0.10 370 2.21 0.0000
2016-05-13 2016-03-31 13F LANTRONIX COM NEW 516548203 381,154 -973 -0.25 362 -16.20 0.0000
2016-02-08 2015-12-31 13F LANTRONIX COM NEW 516548203 382,127 0 0.00 432 -9.62 0.0000
2015-11-12 2015-09-30 13F/A-1 LANTRONIX COM NEW 516548203 382,127 0 0.00 478 -24.13 0.0000
2015-11-12 2015-09-30 13F LANTRONIX COM NEW 516548203 382,127 478
2015-08-13 2015-06-30 13F LANTRONIX COM NEW 516548203 382,127 572 0.15 630 -8.70 0.0000
2015-05-15 2015-03-31 13F/A-1 LANTRONIX COM NEW 516548203 381,555 0 0.00 690 -4.30 0.0000
2015-05-14 2015-03-31 13F LANTRONIX COM NEW 516548203 381,555 690
2015-02-12 2014-12-31 13F LANTRONIX COM NEW 516548203 381,555 0 0.00 721 6.19 0.0001
2014-11-12 2014-09-30 13F LANTRONIX COM NEW 516548203 381,555 0 0.00 679 -9.59 0.0001
2014-08-11 2014-06-30 13F LANTRONIX COM NEW 516548203 381,555 0 0.00 751 -5.42 0.0001
2014-05-13 2014-03-31 13F LANTRONIX COM NEW 516548203 381,555 5,409 1.44 794 34.35 0.0001
2014-02-12 2013-12-31 13F LANTRONIX COM NEW 516548203 376,146 -4,400 -1.16 591 11.72 0.0001
2013-11-07 2013-09-30 13F LANTRONIX COM NEW 516548203 380,546 80,000 26.62 529 11.37 0.0001
2013-08-13 2013-06-30 13F LANTRONIX COM NEW 516548203 300,546 300,546 475 0.0000
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.