Lattice Semiconductor Corporation
US ˙ NasdaqGS ˙ US5184151042

SecurityLSCC / Lattice Semiconductor Corporation
InstitutionBrown Advisory Inc
Latest Disclosed Ownership700,738 shares
Latest Disclosed Value $ 65,000,488
Brown Advisory Inc reports 36.28% decrease in ownership of LSCC / Lattice Semiconductor Corporation

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 700,738 shares of Lattice Semiconductor Corporation (US:LSCC) valued at $65,000,457 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,099,655 shares of Lattice Semiconductor Corporation. This represents a change in shares of -36.28% during the quarter. The current value of the position is $106,393,051 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)
2026-05-15 2026-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 700,738 -398,917 -36.28 65,000 -19.67 0.0476
2026-02-13 2025-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 1,099,655 -230,900 -17.35 80,913 -17.06 0.1129
2025-11-14 2025-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 1,330,555 -36,148 -2.64 97,556 45.71 0.1270
2025-08-13 2025-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 1,366,703 762,536 126.21 66,955 111.29 0.0881
2025-04-30 2025-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 604,167 -366,244 -37.74 31,689 -42.36 0.0453
2025-02-14 2024-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 970,411 509,704 110.64 54,974 124.85 0.0697
2024-11-13 2024-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 460,707 -259,565 -36.04 24,450 -41.46 0.0307
2024-08-14 2024-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 720,272 -80,653 -10.07 41,769 -33.34 0.0546
2024-04-24 2024-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 800,925 36,914 4.83 62,656 18.87 0.0838
2024-02-08 2023-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 764,011 353,427 86.08 52,709 49.40 0.0741
2023-10-25 2023-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 410,584 311 0.08 35,282 -10.49 0.0579
2023-07-31 2023-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 410,273 -904 -0.22 39,415 0.37 0.0616
2023-05-08 2023-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 411,177 -259,330 -38.68 39,267 -9.74 0.0665
2023-02-13 2022-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 670,507 -1,024 -0.15 43,502 31.64 0.0808
2022-11-14 2022-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 671,531 -755 -0.11 33,046 1.35 0.0643
2022-11-14 2022-06-30 13F/A-2 LATTICE SEMICONDUCTOR COM 518415104 672,286 74,793 12.52 32,605 -10.47 0.0613
2022-09-13 2022-06-30 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 656,986 73,868 31,863 0.0551
2022-08-02 2022-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 650,590 72,876 31,714 0.0510
2022-11-14 2022-03-31 13F/A-2 LATTICE SEMICONDUCTOR COM 518415104 597,493 -243,373 -28.94 36,417 -43.80 0.0543
2022-09-13 2022-03-31 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 583,118 -257,748 35,541 0.0499
2022-05-09 2022-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 577,714 -263,152 35,302 0.0480
2022-01-27 2021-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 840,866 -1,203,489 -58.87 64,797 -50.97 0.0803
2021-11-12 2021-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 2,044,355 3,014 0.15 132,168 15.25 0.1951
2021-07-29 2021-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 2,041,341 -325,061 -13.74 114,682 7.65 0.1729
2021-05-14 2021-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 2,366,402 -291,185 -10.96 106,536 -12.51 0.1822
2021-02-12 2020-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 2,657,587 22,426 0.85 121,770 59.56 0.2161
2020-11-16 2020-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 2,635,161 141,994 5.70 76,314 7.82 0.1576
2020-08-14 2020-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 2,493,167 124,468 5.25 70,782 67.69 0.1649
2020-05-15 2020-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 2,368,699 2,368,699 42,211 0.1293
2019-08-12 2019-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 0 -86,450 -100.00 0 -100.00
2019-05-15 2019-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 86,450 -25,909 -23.06 1,032 32.65 0.0029
2019-02-13 2018-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 112,359 28,812 34.49 778 16.47 0.0026
2018-11-13 2018-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 83,547 83,547 668 0.0019
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.