Silicon Laboratories Inc.
MX ˙ BMV ˙ US8269191024
SecurityMX:SLAB / Silicon Laboratories Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership590,908 shares
Latest Disclosed Value $ 122,997,555
Morgan Stanley reports 45.05% increase in ownership of SLAB / Silicon Laboratories Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 590,908 shares of Silicon Laboratories Inc. (MX:SLAB) valued at $122,997,555 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 407,383 shares of Silicon Laboratories Inc.. This represents a change in shares of 45.05% 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)
2026-05-15 2026-03-31 13F SILICON LABORATORIES COM 826919102 590,908 183,525 45.05 122,998 131.00 0.0074
2026-05-27 2025-12-31 13F/A-1 SILICON LABORATORIES COM 826919102 407,383 40,904 11.16 53,245 10.80 0.0032
2026-02-13 2025-12-31 13F SILICON LABORATORIES COM 826919102 407,383 40,904 53,245 0.0032
2026-05-27 2025-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 366,479 -75,086 -17.00 48,057 -26.15 0.0029
2025-11-14 2025-09-30 13F SILICON LABORATORIES COM 826919102 366,479 -75,086 48,057 0.0029
2025-08-15 2025-06-30 13F SILICON LABORATORIES COM 826919102 441,565 -152,161 -25.63 65,069 -2.64 0.0042
2025-05-15 2025-03-31 13F SILICON LABORATORIES COM 826919102 593,726 103,221 21.04 66,836 9.69 0.0048
2025-05-15 2024-12-31 13F/A-1 SILICON LABORATORIES COM 826919102 490,505 25,611 5.51 60,931 13.41 0.0043
2025-02-14 2024-12-31 13F SILICON LABORATORIES COM 826919102 490,505 25,611 60,931 0.0043
2025-05-14 2024-09-30 13F/A-2 SILICON LABORATORIES COM 826919102 464,894 -32,485 -6.53 53,728 -2.36 0.0039
2025-02-14 2024-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 464,894 -32,485 53,728 0.0039
2024-11-14 2024-09-30 13F SILICON LABORATORIES COM 826919102 464,894 -32,485 53,728 0.0039
2025-05-14 2024-06-30 13F/A-2 SILICON LABORATORIES COM 826919102 497,379 -23,613 -4.53 55,025 -26.51 0.0043
2024-10-17 2024-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 497,379 -23,613 55,025 0.0043
2024-08-14 2024-06-30 13F SILICON LABORATORIES COM 826919102 497,379 -23,613 55,025 0.0043
2024-10-17 2024-03-31 13F/A-2 SILICON LABORATORIES COM 826919102 520,992 -74,597 -12.52 74,877 -4.95 0.0060
2024-08-16 2024-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 520,992 -74,597 74,877 0.0007
2024-05-15 2024-03-31 13F SILICON LABORATORIES COM 826919102 520,992 -74,597 74,877 0.0060
2024-08-16 2023-12-31 13F/A-1 SILICON LABORATORIES COM 826919102 595,589 184,982 45.05 78,779 65.55 0.0069
2024-02-13 2023-12-31 13F SILICON LABORATORIES COM 826919102 595,589 184,982 78,779 0.0069
2023-11-15 2023-09-30 13F SILICON LABORATORIES COM 826919102 410,607 7,329 1.82 47,585 -25.20 0.0048
2023-08-14 2023-06-30 13F SILICON LABORATORIES COM 826919102 403,278 107,684 36.43 63,613 22.91 0.0063
2023-05-15 2023-03-31 13F SILICON LABORATORIES COM 826919102 295,594 18,826 6.80 51,756 37.83 0.0055
2023-02-14 2022-12-31 13F SILICON LABORATORIES COM 826919102 276,768 91,350 49.27 37,549 64.06 0.0043
2022-11-14 2022-09-30 13F SILICON LABORATORIES COM 826919102 185,418 43,930 31.05 22,888 15.37 0.0031
2022-10-27 2022-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 141,488 72,322 104.56 19,839 90.98 0.0026
2022-08-15 2022-06-30 13F SILICON LABORATORIES COM 826919102 141,488 72,322 19,839 0.0005
2022-10-27 2022-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 69,166 -28,118 -28.90 10,388 -48.27 0.0014
2022-05-13 2022-03-31 13F SILICON LABORATORIES COM 826919102 69,166 -28,118 10,388 0.0014
2022-02-14 2021-12-31 13F SILICON LABORATORIES COM 826919102 97,284 10,288 11.83 20,081 64.68 0.0025
2021-11-15 2021-09-30 13F SILICON LABORATORIES COM 826919102 86,996 -65,974 -43.13 12,194 -47.98 0.0016
2021-08-23 2021-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 152,970 17,334 12.78 23,443 22.51 0.0031
2021-08-16 2021-06-30 13F SILICON LABORATORIES COM 826919102 152,970 17,334 23,443 0.0006
2021-05-17 2021-03-31 13F SILICON LABORATORIES COM 826919102 135,636 786 0.58 19,135 11.43 0.0028
2021-02-16 2020-12-31 13F SILICON LABORATORIES COM 826919102 134,850 108,318 408.25 17,172 561.22 0.0027
2020-11-13 2020-09-30 13F SILICON LABORATORIES COM 826919102 26,532 -46,719 -63.78 2,597 -64.64 0.0005
2020-08-14 2020-06-30 13F SILICON LABORATORIES COM 826919102 73,251 29,077 65.82 7,345 94.62 0.0016
2020-05-26 2020-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 44,174 -81,105 -64.74 3,774 -74.03 0.0010
2020-05-15 2020-03-31 13F SILICON LABORATORIES COM 826919102 44,174 -81,105 3,774 289.9219
2020-02-14 2019-12-31 13F SILICON LABORATORIES COM 826919102 125,279 80,592 180.35 14,531 192.08 0.0034
2019-11-14 2019-09-30 13F SILICON LABORATORIES COM 826919102 44,687 19,665 78.59 4,975 92.31 0.0013
2019-08-14 2019-06-30 13F SILICON LABORATORIES COM 826919102 25,022 -456 -1.79 2,587 25.52 0.0007
2019-05-15 2019-03-31 13F SILICON LABORATORIES COM 826919102 25,478 -309,598 -92.40 2,061 -92.20 0.0006
2019-02-14 2018-12-31 13F SILICON LABORATORIES COM 826919102 335,076 77,534 30.11 26,407 11.70 0.0079
2019-04-23 2018-09-30 13F/A-2 SILICON LABORATORIES COM 826919102 257,542 71,289 38.28 23,642 27.45 0.0059
2018-11-20 2018-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 257,542 0 23,642 0.0059
2018-11-14 2018-09-30 13F SILICON LABORATORIES COM 826919102 257,542 71,289 23,642
2019-04-23 2018-06-30 13F/A-1 SILICON LABORATORIES COM 826919102 186,253 -2,300 -1.22 18,550 9.43 0.0050
2018-08-14 2018-06-30 13F SILICON LABORATORIES COM 826919102 186,253 -2,300 18,550
2019-04-23 2018-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 188,553 8,237 4.57 16,951 6.46 0.0047
2018-05-14 2018-03-31 13F SILICON LABORATORIES COM 826919102 188,553 8,237 16,951
2019-04-23 2017-12-31 13F/A-1 SILICON LABORATORIES COM 826919102 180,316 17,829 10.97 15,923 22.64 0.0044
2018-02-14 2017-12-31 13F SILICON LABORATORIES COM 826919102 180,316 17,829 15,923
2017-11-14 2017-09-30 13F SILICON LABORATORIES COM 826919102 162,487 36,023 28.48 12,983 50.20 0.0039
2017-08-11 2017-06-30 13F SILICON LABORATORIES COM 826919102 126,464 -33,429 -20.91 8,644 -26.50 0.0026
2017-05-22 2017-03-31 13F/A-1 SILICON LABORATORIES COM 826919102 159,893 -57,429 -26.43 11,761 -16.74 0.0036
2017-05-12 2017-03-31 13F SILICON LABORATORIES COM 826919102 159,893 11,761
2017-02-22 2016-12-31 13F/A-1 SILICON LABORATORIES COM 826919102 217,322 2,620 1.22 14,125 11.88 0.0046
2017-02-13 2016-12-31 13F SILICON LABORATORIES COM 826919102 217,322 14,125
2016-11-10 2016-09-30 13F SILICON LABORATORIES COM 826919102 214,702 123,963 136.61 12,625 185.50 0.0043
2016-08-12 2016-06-30 13F SILICON LABORATORIES COM 826919102 90,739 24,563 37.12 4,422 48.59 0.0016
2016-05-12 2016-03-31 13F SILICON LABORATORIES COM 826919102 66,176 19,669 42.29 2,976 31.80 0.0011
2016-02-09 2015-12-31 13F SILICON LABORATORIES COM 826919102 46,507 -38,409 -45.23 2,258 -36.00 0.0008
2016-02-08 2015-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 84,916 -30,766 -26.60 3,528 -43.54 0.0013
2015-11-09 2015-09-30 13F SILICON LABORATORIES COM 826919102 84,916 3,528
2015-08-12 2015-06-30 13F SILICON LABORATORIES COM 826919102 115,682 75,123 185.22 6,249 203.50 0.0022
2015-05-14 2015-03-31 13F SILICON LABORATORIES COM 826919102 40,559 -52,817 -56.56 2,059 -53.69 0.0008
2015-02-13 2014-12-31 13F SILICON LABORATORIES COM 826919102 93,376 71,489 326.63 4,446 399.55 0.0016
2014-12-16 2014-09-30 13F/A-1 SILICON LABORATORIES COM 826919102 21,887 2,499 12.89 890 -12.23 0.0003
2014-11-14 2014-09-30 13F SILICON LABORATORIES COM 826919102 21,887 890
2014-05-13 2014-03-31 13F SILICON LABORATORIES COM 826919102 19,388 -16,071 -45.32 1,014 -33.94 0.0004
2014-02-13 2013-12-31 13F SILICON LABORATORIES COM 826919102 35,459 12,361 53.52 1,535 55.52 0.0007
2013-11-13 2013-09-30 13F SILICON LABORATORIES INC COM 826919102 23,098 -6,160 -21.05 987 -18.56 0.0005
2013-08-08 2013-06-30 13F SILICON LABORATORIES INC COM 826919102 29,258 29,258 1,212 0.0006
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.