실리콘 연구소 Inc.
US ˙ NasdaqGS ˙ US8269191024

SecuritySLAB / Silicon Laboratories Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership55,929 shares
Latest Disclosed Value $ 8,241,697
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 2.38% increase in ownership of SLAB / Silicon Laboratories Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 55,929 shares of Silicon Laboratories Inc. (US:SLAB) valued at $8,241,697 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 54,627 shares of Silicon Laboratories Inc.. This represents a change in shares of 2.38% during the quarter. The current value of the position is $12,198,674 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)
2025-08-26 2025-06-30 NP Silicon Laboratories EC US8269191024 55,929 1,302 2.38 8,242 34.02 0.1851
2025-05-28 2025-03-31 NP Silicon Laboratories EC US8269191024 54,627 580 1.07 6,149 -8.40 0.1475
2025-02-25 2024-12-31 NP Silicon Laboratories EC US8269191024 54,047 -8,724 -13.90 6,714 -7.46 0.1466
2024-11-26 2024-09-30 NP Silicon Laboratories EC US8269191024 62,771 2,573 4.27 7,254 8.94 0.1372
2024-08-26 2024-06-30 NP Silicon Laboratories EC US8269191024 60,198 4,499 8.08 6,660 -16.81 0.1356
2024-05-28 2024-03-31 NP Silicon Laboratories EC US8269191024 55,699 -2,165 -3.74 8,005 4.60 0.1670
2024-02-26 2023-12-31 NP Silicon Laboratories EC US8269191024 57,864 3,976 7.38 7,654 22.55 0.1634
2023-11-28 2023-09-30 NP Silicon Laboratories EC US8269191024 53,888 -855 -1.56 6,245 -27.68 0.1629
2023-08-25 2023-06-30 NP Silicon Laboratories EC US8269191024 54,743 4,372 8.68 8,635 -2.09 0.2048
2023-05-26 2023-03-31 NP Silicon Laboratories EC US8269191024 50,371 -1,242 -2.41 8,819 25.95 0.2348
2023-02-24 2022-12-31 NP Silicon Laboratories EC US8269191024 51,613 -1,920 -3.59 7,002 5.96 0.1926
2022-11-25 2022-09-30 NP Silicon Laboratories EC US8269191024 53,533 -2,552 -4.55 6,608 -15.97 0.1893
2022-08-25 2022-06-30 NP Silicon Laboratories EC US8269191024 56,085 -2,312 -3.96 7,864 -10.34 0.2172
2022-05-26 2022-03-31 NP Silicon Laboratories EC US8269191024 58,397 -2,651 -4.34 8,771 -30.39 0.2043
2022-02-25 2021-12-31 NP Silicon Laboratories EC US8269191024 61,048 -6,353 -9.43 12,602 33.40 0.2733
2021-11-24 2021-09-30 NP Silicon Laboratories EC US8269191024 67,401 335 0.50 9,447 -8.09 0.2081
2021-08-26 2021-06-30 NP Silicon Laboratories EC US8269191024 67,066 1,259 1.91 10,278 10.71 0.2205
2021-05-27 2021-03-31 NP Silicon Laboratories EC US8269191024 65,807 -1,805 -2.67 9,283 7.83 0.2105
2021-02-25 2020-12-31 NP Silicon Laboratories EC US8269191024 67,612 -3,620 -5.08 8,610 23.52 0.2206
2020-11-25 2020-09-30 NP Silicon Laboratories EC US8269191024 71,232 -1,859 -2.54 6,970 -4.89 0.2237
2020-08-27 2020-06-30 NP Silicon Laboratories EC US8269191024 73,091 3,148 4.50 7,329 22.69 0.2396
2020-06-01 2020-03-31 NP Silicon Laboratories EC US8269191024 69,943 3,552 5.35 5,974 -22.43 0.2442
2020-02-27 2019-12-31 NP Silicon Laboratories EC 826919102 66,391 579 0.88 7,700 5.08 0.2315
2019-11-27 2019-09-30 NP Silicon Laboratories EC US8269191024 65,812 65,812 7,328 0.2422
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.