Lattice Semiconductor Corporation
US ˙ NasdaqGS ˙ US5184151042

SecurityLSCC / Lattice Semiconductor Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership486,223 shares
Latest Disclosed Value $ 35,776,219
Sei Investments Co reports 16.82% increase in ownership of LSCC / Lattice Semiconductor Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 486,223 shares of Lattice Semiconductor Corporation (US:LSCC) valued at $35,776,288 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 416,210 shares of Lattice Semiconductor Corporation. This represents a change in shares of 16.82% during the quarter. The current value of the position is $75,170,076 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 LATTICE SEMICONDUCTOR COM 518415104 486,223 70,013 16.82 35,776 17.24 0.0353
2025-11-13 2025-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 416,210 -60,324 -12.66 30,517 30.72 0.0328
2025-08-14 2025-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 476,534 -114,340 -19.35 23,345 -24.67 0.0271
2025-05-14 2025-03-31 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 590,874 41,799 7.61 30,991 -0.37 0.0399
2025-05-13 2025-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 545,367 -3,708 30,842 0.0335
2025-02-11 2024-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 549,075 585 0.11 31,105 6.86 0.0399
2024-11-12 2024-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 548,490 13,369 2.50 29,108 -6.20 0.0378
2024-08-13 2024-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 535,121 -82,959 -13.42 31,032 -35.82 0.0440
2024-05-07 2024-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 618,080 -69,210 -10.07 48,352 1.97 0.0708
2024-02-14 2023-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 687,290 49,704 7.80 47,416 -13.45 0.0761
2023-11-14 2023-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 637,586 -74,956 -10.52 54,788 -19.96 0.0984
2023-08-11 2023-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 712,542 10,863 1.55 68,454 2.15 0.1194
2023-05-12 2023-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 701,679 -91,694 -11.56 67,011 30.18 0.1245
2023-02-10 2022-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 793,373 221,346 38.70 51,474 82.85 0.1144
2022-11-14 2022-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 572,027 90,703 18.84 28,150 20.60 0.0628
2022-08-15 2022-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 481,324 51,894 12.08 23,341 -10.80 0.0504
2022-05-13 2022-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 429,430 -11,956 -2.71 26,167 -23.04 0.0526
2022-02-14 2021-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 441,386 57,398 14.95 34,002 36.97 0.0638
2021-11-12 2021-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 383,988 59,735 18.42 24,825 36.27 0.0521
2021-08-06 2021-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 324,253 -13,785 -4.08 18,217 19.57 0.0404
2021-05-12 2021-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 338,038 -6,236 -1.81 15,236 -3.42 0.0384
2021-02-08 2020-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 344,274 8,946 2.67 15,775 62.43 0.0408
2020-12-04 2020-09-30 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 335,328 49,393 17.27 9,712 19.64 0.0281
2020-11-06 2020-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 335,328 49,393 9,712 23,384.3366
2020-08-17 2020-06-30 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 285,935 148,320 107.78 8,118 230.94 0.0252
2020-08-11 2020-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 50,547 -87,068 1,435 3,892.5139
2020-05-14 2020-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 137,615 87,739 175.91 2,453 156.86 0.0090
2020-02-06 2019-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 49,876 -13,065 -20.76 955 -17.03 0.0028
2019-11-12 2019-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 62,941 7,245 13.01 1,151 41.75 0.0029
2019-08-14 2019-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 55,696 -20,481 -26.89 812 -10.67 0.0027
2019-05-15 2019-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 76,177 76,177 909 0.0031
2018-11-08 2018-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 0 -296,439 -100.00 0 -100.00
2018-08-03 2018-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 296,439 51,985 21.27 1,945 42.80 0.0066
2018-05-11 2018-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 244,454 -5,788 -2.31 1,362 -5.81 0.0052
2018-02-08 2017-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 250,242 -43,656 -14.85 1,446 -5.55 0.0050
2017-11-06 2017-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 293,898 -3,535 -1.19 1,531 -22.72 0.0054
2017-07-31 2017-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 297,433 20 0.01 1,981 -3.74 0.0079
2017-05-05 2017-03-31 13F LATTICE SEMICONDUCTOR COM 518415104 297,413 0 0.00 2,058 -5.98 0.0090
2017-02-02 2016-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 297,413 -169,042 -36.24 2,189 -27.68 0.0106
2016-11-04 2016-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 466,455 35,390 8.21 3,027 31.27 0.0154
2016-08-11 2016-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 431,065 12,030 2.87 2,306 -3.11 0.0138
2016-05-10 2016-03-31 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 419,035 0 0.00 2,380 -12.21 0.0148
2016-02-03 2015-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 419,035 0 0.00 2,711 68.07 0.0165
2015-11-02 2015-09-30 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 419,035 66,860 18.98 1,613 -22.23 0.0148
2015-10-30 2015-09-30 13F LATTICE SEMICONDUCTOR COM 518415104 419,035 1,613
2015-08-07 2015-06-30 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 352,175 0 0.00 2,074 -7.12 0.0188
2015-08-04 2015-06-30 13F LATTICE SEMICONDUCTOR COM 518415104 352,175 0 2,074 0.0188
2015-05-14 2015-03-31 13F/A-1 LATTICE SEMICONDUCTOR COM 518415104 352,175 19,940 6.00 2,233 -2.45 0.0194
2015-05-01 2015-03-31 13F LATIN AMERN DISCOVERY FD COM 518415104 352,175 2,233
2015-02-10 2014-12-31 13F LATTICE SEMICONDUCTOR COM 518415104 332,235 332,235 2,289 0.0202
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.