Silicon Laboratories Inc.
MX ˙ BMV ˙ US8269191024
SecurityMX:SLAB / Silicon Laboratories Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership41,402 shares
Latest Disclosed Value $ 5,410,878
Sei Investments Co reports 83.59% increase in ownership of SLAB / Silicon Laboratories Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 41,402 shares of Silicon Laboratories Inc. (MX:SLAB) valued at $5,410,878 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 22,551 shares of Silicon Laboratories Inc.. This represents a change in shares of 83.59% during the quarter.

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 SILICON LABORATORIES COM 826919102 41,402 18,851 83.59 5,411 82.96 0.0053
2025-11-13 2025-09-30 13F SILICON LABORATORIES COM 826919102 22,551 -9,312 -29.23 2,957 -37.02 0.0032
2025-08-14 2025-06-30 13F SILICON LABORATORIES COM 826919102 31,863 18,412 136.88 4,695 210.11 0.0054
2025-05-14 2025-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 13,451 -370 -2.68 1,514 -11.77 0.0019
2025-05-13 2025-03-31 13F SILICON LABORATORIES COM 826919102 14,089 268 1,719 0.0019
2025-02-11 2024-12-31 13F SILICON LABORATORIES COM 826919102 13,821 1,229 9.76 1,717 17.94 0.0022
2024-11-12 2024-09-30 13F SILICON LABORATORIES COM 826919102 12,592 -6,636 -34.51 1,455 -31.56 0.0019
2024-08-13 2024-06-30 13F SILICON LABORATORIES COM 826919102 19,228 784 4.25 2,127 -19.77 0.0030
2024-05-07 2024-03-31 13F SILICON LABORATORIES COM 826919102 18,444 -1,354 -6.84 2,651 1.22 0.0039
2024-02-14 2023-12-31 13F SILICON LABORATORIES COM 826919102 19,798 -27,178 -57.86 2,619 -51.91 0.0042
2023-11-14 2023-09-30 13F SILICON LABORATORIES COM 826919102 46,976 -14,173 -23.18 5,444 -43.56 0.0098
2023-08-11 2023-06-30 13F SILICON LABORATORIES COM 826919102 61,149 -28,354 -31.68 9,646 -38.45 0.0168
2023-05-12 2023-03-31 13F SILICON LABORATORIES COM 826919102 89,503 49,226 122.22 15,672 186.80 0.0291
2023-02-10 2022-12-31 13F SILICON LABORATORIES COM 826919102 40,277 -21,657 -34.97 5,464 -28.53 0.0121
2022-11-14 2022-09-30 13F SILICON LABORATORIES COM 826919102 61,934 -1,621 -2.55 7,645 -14.22 0.0171
2022-08-15 2022-06-30 13F SILICON LABORATORIES COM 826919102 63,555 21,575 51.39 8,912 41.35 0.0192
2022-05-13 2022-03-31 13F SILICON LABORATORIES COM 826919102 41,980 -1,597 -3.66 6,305 -29.90 0.0127
2022-02-14 2021-12-31 13F SILICON LABORATORIES COM 826919102 43,577 1,788 4.28 8,994 54.22 0.0169
2021-11-12 2021-09-30 13F SILICON LABORATORIES COM 826919102 41,789 -3,149 -7.01 5,832 -15.22 0.0122
2021-08-06 2021-06-30 13F SILICON LABORATORIES COM 826919102 44,938 -2,859 -5.98 6,879 2.43 0.0153
2021-05-12 2021-03-31 13F SILICON LABORATORIES COM 826919102 47,797 -23,624 -33.08 6,716 -26.16 0.0169
2021-02-08 2020-12-31 13F SILICON LABORATORIES COM 826919102 71,421 -8,489 -10.62 9,095 16.33 0.0235
2020-12-04 2020-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 79,910 -7,999 -9.10 7,818 -11.34 0.0226
2020-11-06 2020-09-30 13F SILICON LABORATORIES COM 826919102 80,151 -7,758 7,842 18,881.7924
2020-08-17 2020-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 87,909 5,183 6.27 8,818 24.81 0.0274
2020-08-11 2020-06-30 13F SILICON LABORATORIES COM 826919102 92,345 9,619 10,694 29,008.0442
2020-05-14 2020-03-31 13F SILICON LABORATORIES COM 826919102 82,726 -10,682 -11.44 7,065 -34.88 0.0259
2020-02-06 2019-12-31 13F SILICON LABORATORIES COM 826919102 93,408 -8,997 -8.79 10,849 -4.94 0.0324
2019-11-12 2019-09-30 13F SILICON LABORATORIES COM 826919102 102,405 4,596 4.70 11,413 12.71 0.0292
2019-08-14 2019-06-30 13F SILICON LABORATORIES COM 826919102 97,809 16,803 20.74 10,126 54.24 0.0331
2019-05-15 2019-03-31 13F SILICON LABORATORIES COM 826919102 81,006 7,033 9.51 6,565 -3.33 0.0220
2019-02-13 2018-12-31 13F SILICON LABORATORIES COM 826919102 73,973 0 0.00 6,791 0.00 0.0242
2018-11-08 2018-09-30 13F SILICON LABORATORIES COM 826919102 73,973 -1,782 -2.35 6,791 -9.99 0.0246
2018-08-03 2018-06-30 13F SILICON LABORATORIES COM 826919102 75,755 132 0.17 7,545 10.97 0.0256
2018-05-11 2018-03-31 13F SILICON LABORATORIES COM 826919102 75,623 -572 -0.75 6,799 1.06 0.0261
2018-02-08 2017-12-31 13F SILICON LABORATORIES COM 826919102 76,195 -1,570 -2.02 6,728 8.29 0.0234
2017-11-06 2017-09-30 13F SILICON LABORATORIES COM 826919102 77,765 12,947 19.97 6,213 40.22 0.0221
2017-07-31 2017-06-30 13F SILICON LABORATORIES COM 826919102 64,818 6,884 11.88 4,431 3.97 0.0177
2017-05-05 2017-03-31 13F SILICON LABORATORIES COM 826919102 57,934 4,086 7.59 4,262 21.77 0.0187
2017-02-02 2016-12-31 13F SILICON LABORATORIES COM 826919102 53,848 3,915 7.84 3,500 19.21 0.0169
2016-11-04 2016-09-30 13F SILICON LABORATORIES COM 826919102 49,933 2,504 5.28 2,936 26.99 0.0149
2016-08-11 2016-06-30 13F SILICON LABORATORIES COM 826919102 47,429 812 1.74 2,312 10.31 0.0139
2016-05-10 2016-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 46,617 2,905 6.65 2,096 -1.23 0.0130
2016-02-03 2015-12-31 13F SILICON LABORATORIES COM 826919102 43,712 -80,154 -64.71 2,122 -58.76 0.0129
2015-11-02 2015-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 123,866 79,684 180.35 5,145 115.63 0.0472
2015-10-30 2015-09-30 13F SILICON LABORATORIES COM 826919102 123,866 5,146
2015-08-07 2015-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 44,182 44,182 2,386 0.0216
2015-08-04 2015-06-30 13F SILICON LABORATORIES COM 826919102 44,182 44,182 2,386 0.0216
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.