SILICON LABORATORIES INC SLAB
COM · Common Stock · CUSIP 826919102 · ISIN US8269191024
American multinational fabless semiconductor company
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersAustin, TX
- Founded1996
- Websitesilabs.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.1m this quarter). Holder counts are more reliable. Shares outstanding: 32.3m as of 2024-07-17, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $110.59. Options: 9 managers hold calls ($16.8m notional), 6 hold puts ($6.3m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 306 |
| Q4 2022 | 311 |
| Q1 2023 | 356 |
| Q2 2023 | 323 |
| Q3 2023 | 324 |
| Q4 2023 | 296 |
| Q1 2024 | 300 |
| Q2 2024 | 296 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 124 | 174 |
| Q1 2023 | 193 | 132 |
| Q2 2023 | 144 | 189 |
| Q3 2023 | 147 | 167 |
| Q4 2023 | 128 | 158 |
| Q1 2024 | 139 | 141 |
| Q2 2024 | 153 | 139 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $41.8m | $9.4m | 0.23 |
| Q4 2023 | $32.4m | $27.7m | 0.86 |
| Q1 2024 | $22.4m | $11.2m | 0.50 |
| Q2 2024 | $16.8m | $6.3m | 0.38 |
Biggest buyers
| CITADEL ADVISORS LLC | Added | +318.7k |
| AXA S.A. | Added | +254.1k |
| STATE STREET CORP | Added | +129.2k |
| Clearbridge Investments, LLC | Added | +125.0k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +105.6k |
| Capital Research Global Investors | Added | +89.0k |
| D. E. Shaw & Co., Inc. | Added | +87.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +84.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Added | +82.0k |
| Woodline Partners LP | New | +81.9k |
Biggest sellers
| MORGAN STANLEY | Reduced | -1.1m |
| Invesco Ltd. | Reduced | -566.4k |
| Thrivent Financial for Lutherans | Reduced | -278.9k |
| Capital International Investors | Sold out | -231.8k |
| EAGLE ASSET MANAGEMENT INC | Reduced | -180.0k |
| Balyasny Asset Management L.P. | Reduced | -120.7k |
| Schonfeld Strategic Advisors LLC | Reduced | -99.4k |
| Ranger Investment Management, L.P. | Sold out | -95.5k |
| Mirae Asset Global Investments Co., Ltd. | Sold out | -80.7k |
| AMERICAN INTERNATIONAL GROUP, INC. | Sold out | -57.6k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $7.9m71.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.5m31.9k shares |
| SIMPLEX TRADING, LLC | Unchanged | $1.5m13.3k shares |
| JANE STREET GROUP, LLC | Added | $1.4m12.7k shares |
| Cubist Systematic Strategies, LLC | Reduced | $862.9k7.8k shares |
| Walleye Capital LLC | Added | $862.9k7.8k shares |
| GTS SECURITIES LLC | Reduced | $387.2k3.5k shares |
| WOLVERINE TRADING, LLC | Added | $376.1k3.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $3.9m35.0k shares |
| Walleye Capital LLC | Added | $1.1m9.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Unchanged | $862.9k7.8k shares |
| GTS SECURITIES LLC | New | $276.6k2.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $221.0k2.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-28 | 12.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), FMR LLC (2.1%, 2026-03-06)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 2 | $347.7k | — |
| Q4 2022 | 0 | — | 1 | $195.9k | — |
| Q1 2023 | 0 | — | 1 | $145.9k | — |
| Q2 2023 | 0 | — | 2 | $195.3k | $195.3k |
| Q3 2023 | 0 | — | 1 | $503.9k | $503.9k |
| Q4 2023 | 0 | — | 1 | $805.4k | $805.4k |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $895.1k | $895.1k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-03 | Johnson Robert Matthew President & CEO, director | Sold plan | $895.1k7.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.03% of their portfolio | 4.8m $529.8m | Added +478 |
| BlackRock Inc. 0.01% of their portfolio | 4.7m $518.3m | Added +70.3k |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.4m $381.6m | Reduced -39.9k |
| STATE STREET CORP 0.01% of their portfolio | 1.6m $178.0m | Added +129.2k |
| Capital Research Global Investors 0.03% of their portfolio | 1.3m $144.6m | Added +89.0k |
| MACQUARIE GROUP LTD 0.11% of their portfolio | 889.2k $98.4m | Added +13.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 765.3k $84.7m | Added +29.9k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 692.4k $76.6m | Added +105.6k |
| GW&K Investment Management, LLC 0.66% of their portfolio | 650.7k $72.0m | Reduced -13.2k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 639.1k $70.7m | Added +12.7k |
| Van Berkom & Associates Inc. 2.01% of their portfolio | 609.2k $67.4m | Added +47.1k |
| Invesco Ltd. 0.01% of their portfolio | 559.6k $61.9m | Reduced -566.4k |
| FEDERATED HERMES, INC. 0.14% of their portfolio | 545.8k $60.4m | Added +12.0k |
| AXA S.A. 0.09% of their portfolio | 542.8k $60.1m | Added +254.1k |
| MORGAN STANLEY 0.00% of their portfolio | 497.4k $55.0m | Reduced -1.1m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 481.5k $53.3m | Added +14.3k |
| LOOMIS SAYLES & CO L P 0.07% of their portfolio | 468.2k $51.8m | Reduced -31.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 446.8k $49.4m | Added +33.6k |
| Pathstone Holdings, LLC 0.22% of their portfolio | 442.9k $49.0m | Reduced -1.6k |
| CITADEL ADVISORS LLC 0.05% of their portfolio | 441.4k $48.8m | Added +318.7k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 392.6k $43.4m | Added +9.6k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 359.0k $39.7m | Added +33.2k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 316.4k $35.0m | Added +72.1k |
| Stephens Investment Management Group LLC 0.47% of their portfolio | 300.5k $33.2m | Added +17.8k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 281.7k $31.2m | Added +18.7k |
| Clearbridge Investments, LLC 0.02% of their portfolio | 273.8k $30.3m | Added +125.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 264.2k $29.2m | Reduced -15.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.11% of their portfolio | 233.2k $25.8m | Added +4.2k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 227.6k $25.2m | Added +25.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 205.7k $22.8m | Added +25.8k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.80% of their portfolio | 195.0k $21.6m | Unchanged |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 185.1k $20.5m | Added +87.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio | 169.5k $18.8m | Added +82.0k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.10% of their portfolio | 132.1k $14.6m | Added +31.1k |
| DAVIDSON INVESTMENT ADVISORS 0.75% of their portfolio | 131.5k $14.5m | Added +35.3k |
| NORGES BANK 0.00% of their portfolio | 129.0k $14.3m | Reduced -19.1k |
| Thrivent Financial for Lutherans 0.03% of their portfolio | 119.1k $13.2m | Reduced -278.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 110.4k $12.2m | Added +14.9k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.74% of their portfolio | 109.5k $12.1m | Added +31.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 108.2k $12.0m | Reduced -13.5k |
| Grandeur Peak Global Advisors, LLC 0.93% of their portfolio | 105.3k $11.7m | Reduced -7.2k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 102.9k $11.4m | Added +10.8k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 100.8k $11.1m | Added +292 |
| Avalon Global Asset Management LLC 3.21% of their portfolio | 97.9k $10.8m | Added +30.3k |
| SEGALL BRYANT & HAMILL, LLC 0.19% of their portfolio | 97.4k $10.8m | Added +13.3k |
| Leeward Investments, LLC - MA 0.45% of their portfolio | 89.5k $9.9m | Added +4.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio | 84.8k $9.4m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 82.4k $9.1m | Added +43.6k |
| Woodline Partners LP 0.09% of their portfolio | 81.9k $9.1m | New |
| S SQUARED TECHNOLOGY, LLC 3.61% of their portfolio | 74.0k $8.2m | Unchanged |
| EAGLE ASSET MANAGEMENT INC 0.04% of their portfolio | 73.6k $8.0m | Reduced -180.0k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.15% of their portfolio | 71.5k $7.9m | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 69.4k $7.7m | Reduced -585 |
| Legal & General Group Plc 0.00% of their portfolio | 65.3k $7.2m | Reduced -7.6k |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 63.1k $7.0m | Reduced -28.1k |
| Swiss National Bank 0.00% of their portfolio | 62.8k $6.9m | Unchanged |
| TWINBEECH CAPITAL LP 0.13% of their portfolio | 61.6k $6.8m | New |
| BARCLAYS PLC 0.00% of their portfolio | 57.2k $6.3m | Reduced -9.6k |
| Corebridge Financial, Inc. 0.03% of their portfolio | 57.2k $6.3m | First filing |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 53.7k $5.9m | First filing |
| IEQ CAPITAL, LLC 0.08% of their portfolio | 50.4k $5.6m | Unchanged |
| California Public Employees Retirement System 0.00% of their portfolio | 49.8k $5.5m | Reduced -8.3k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 49.6k $5.5m | Added +29.1k |
| Retirement Systems of Alabama 0.02% of their portfolio | 49.5k $5.5m | Reduced -653 |
| Granite Investment Partners, LLC 0.22% of their portfolio | 47.3k $5.2m | Added +6.4k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 47.2k $5.2m | Added +9.0k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 46.1k $5.1m | Added +3.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 46.0k $5.1m | Reduced -9.0k |
| CITIGROUP INC 0.00% of their portfolio | 42.9k $4.7m | Added +31.7k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 41.5k $4.6m | Reduced -11.1k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 40.4k $4.5m | Added +5.0k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 39.7k $4.4m | Reduced -2.1k |
| HARRELL INVESTMENT PARTNERS, LLC 1.26% of their portfolio | 39.1k $4.3m | Unchanged |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 38.9k $4.3m | Reduced -23.5k |
| CAPITAL FUND MANAGEMENT S.A. 0.05% of their portfolio | 38.6k $4.3m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 38.3k $4.2m | Reduced -11.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 38.0k $4.2m | Reduced -91 |
| Granahan Investment Management, LLC 0.16% of their portfolio | 36.2k $4.0m | Added +13.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 35.7k $4.0m | Reduced -9.3k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 34.8k $3.9m | Added +2.3k |
| MetLife Investment Management, LLC 0.02% of their portfolio | 34.5k $3.8m | Added +1.4k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 34.3k $3.8m | Added +2.4k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 34.3k $3.8m | Added +800 |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 33.3k $3.7m | Reduced -3.5k |
| UBS Group AG 0.00% of their portfolio | 32.5k $3.6m | Reduced -7.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 31.5k $3.5m | Reduced -26.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 31.1k $3.4m | Reduced -728 |
| Engineers Gate Manager LP 0.08% of their portfolio | 30.3k $3.4m | Added +4.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 29.3k $3.2m | Reduced -1.4k |
| Susquehanna Portfolio Strategies, LLC 0.13% of their portfolio | 28.9k $3.2m | Reduced -719 |
| MARSHALL WACE, LLP 0.00% of their portfolio | 28.7k $3.2m | New |
| Allianz Asset Management GmbH 0.01% of their portfolio | 28.5k $3.2m | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 28.3k $3.1m | Added +23.3k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 26.1k $2.9m | Reduced -900 |
| Holocene Advisors, LP 0.01% of their portfolio | 25.7k $2.8m | Added +5.0k |
| TRUIST FINANCIAL CORP 0.00% of their portfolio | 21.2k $2.3m | Reduced -3.9k |
| Amundi 0.00% of their portfolio | 21.0k $2.3m | Reduced -29.3k |
| LPL Financial LLC 0.00% of their portfolio | 20.9k $2.3m | Added +37 |
| ROYCE & ASSOCIATES LP 0.02% of their portfolio | 20.5k $2.3m | Unchanged |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 19.6k $2.2m | Reduced -120.7k |