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 ($2.3m this quarter). Holder counts are more reliable. Shares outstanding: 31.9m as of 2023-07-17, 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 ≈ $157.76. Options: 10 managers hold calls ($18.2m notional), 9 hold puts ($10.5m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 306 |
| Q4 2022 | 311 |
| Q1 2023 | 356 |
| Q2 2023 | 323 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $17.8m | $4.8m | 0.27 |
| Q4 2022 | $10.0m | $3.2m | 0.32 |
| Q1 2023 | $13.4m | $4.9m | 0.37 |
| Q2 2023 | $18.2m | $10.5m | 0.58 |
Biggest buyers
| Invesco Ltd. | Added | +170.5k |
| BlackRock Inc. | Added | +121.0k |
| SCHWARTZ INVESTMENT COUNSEL INC | New | +115.0k |
| FRANKLIN RESOURCES INC | Added | +112.8k |
| MORGAN STANLEY | Added | +107.7k |
| VANGUARD GROUP INC | Added | +88.1k |
| Van Berkom & Associates Inc. | Added | +80.3k |
| AMERICAN CENTURY COMPANIES INC | Added | +70.3k |
| BARCLAYS PLC | Added | +60.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +59.7k |
Biggest sellers
| FMR LLC | Reduced | -4.8m |
| CITADEL ADVISORS LLC | Reduced | -505.0k |
| LORD, ABBETT & CO. LLC | Sold out | -380.1k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -179.1k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -164.6k |
| JANE STREET GROUP, LLC | Reduced | -160.3k |
| Cubist Systematic Strategies, LLC | Sold out | -154.6k |
| Swedbank AB | Sold out | -150.0k |
| JPMORGAN CHASE & CO | Reduced | -135.8k |
| ENVESTNET ASSET MANAGEMENT INC | Reduced | -111.6k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $6.3m39.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.0m19.2k shares |
| PEAK6 Investments LLC | Added | $2.6m16.2k shares |
| Walleye Trading LLC | Reduced | $2.4m15.5k shares |
| SIMPLEX TRADING, LLC | Added | $1.2m7.7k shares |
| Cubist Systematic Strategies, LLC | New | $1.2m7.6k shares |
| JANE STREET GROUP, LLC | Added | $757.2k4.8k shares |
| GROUP ONE TRADING LLC | Added | $378.6k2.4k shares |
| WOLVERINE TRADING, LLC | New | $295.8k1.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $4.2m26.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.7m11.0k shares |
| SIMPLEX TRADING, LLC | Added | $1.7m10.9k shares |
| JANE STREET GROUP, LLC | New | $1.1m7.2k shares |
| Cubist Systematic Strategies, LLC | New | $820.2k5.2k shares |
| PEAK6 Investments LLC | Added | $615.2k3.9k shares |
| Walleye Trading LLC | Reduced | $236.6k1.5k shares |
| GROUP ONE TRADING LLC | New | $94.6k600 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 2023
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 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 3 | $2.6m | — |
| Q1 2022 | 0 | — | 2 | $311.1k | — |
| Q2 2022 | 0 | — | 3 | $1.0m | — |
| 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 |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-04-21 | Wyatt Christy Director | Sold plan | $112.1k674 shares |
| 2023-04-21 | Richardson Nina Director | Sold plan | $83.2k500 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 2023
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.06% of their portfolio | 4.8m $757.1m | Reduced -4.8m |
| BlackRock Inc. 0.02% of their portfolio | 4.5m $714.4m | Added +121.0k |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.2m $509.4m | Added +88.1k |
| STATE STREET CORP 0.01% of their portfolio | 1.4m $217.9m | Added +12.8k |
| AXA S.A. 0.57% of their portfolio | 1.1m $172.6m | Added +14.1k |
| Invesco Ltd. 0.04% of their portfolio | 977.2k $154.2m | Added +170.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio | 730.4k $115.2m | Reduced -63.5k |
| MACQUARIE GROUP LTD 0.13% of their portfolio | 725.7k $114.5m | Reduced -4.6k |
| GW&K Investment Management, LLC 1.03% of their portfolio | 688.1k $108.5m | Reduced -8.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 656.6k $103.6m | Added +26.0k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 620.6k $97.9m | Added +3.5k |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 539.0k $85.0m | Reduced -78.3k |
| LOOMIS SAYLES & CO L P 0.13% of their portfolio | 530.3k $83.6m | Reduced -9.3k |
| Capital Research Global Investors 0.02% of their portfolio | 464.0k $73.2m | Unchanged |
| EAGLE ASSET MANAGEMENT INC 0.39% of their portfolio | 448.3k $70.7m | Added +10.4k |
| PATHSTONE FAMILY OFFICE, LLC 0.98% of their portfolio | 438.0k $69.1m | Added +1 |
| NORTHERN TRUST CORP 0.01% of their portfolio | 427.2k $67.4m | Added +4.8k |
| Van Berkom & Associates Inc. 2.41% of their portfolio | 420.5k $66.3m | Added +80.3k |
| FEDERATED HERMES, INC. 0.16% of their portfolio | 411.0k $64.8m | Reduced -9.9k |
| MORGAN STANLEY 0.01% of their portfolio | 403.3k $63.6m | Added +107.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 392.4k $61.9m | Added +15.9k |
| Robeco Schweiz AG 0.84% of their portfolio | 357.7k $56.4m | Added +8.0k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 356.3k $56.2m | Reduced -3.4k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 315.7k $49.8m | Reduced -11.7k |
| Stephens Investment Management Group LLC 0.77% of their portfolio | 313.5k $49.5m | Reduced -8.2k |
| NORGES BANK 0.01% of their portfolio | 308.1k $48.6m | Added +20.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 283.5k $44.7m | Added +11.1k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 270.9k $42.7m | Added +8.8k |
| Capital International Investors 0.01% of their portfolio | 231.8k $36.6m | Unchanged |
| Candriam S.C.A. 0.24% of their portfolio | 209.6k $33.1m | Added +17.7k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 184.6k $29.1m | Added +112.8k |
| Clearbridge Investments, LLC 0.03% of their portfolio | 183.8k $29.0m | Reduced -34.2k |
| Rafferty Asset Management, LLC 0.16% of their portfolio | 183.1k $28.9m | Added +41.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 163.9k $25.9m | Reduced -135.8k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 156.6k $24.7m | Added +70.3k |
| SEGALL BRYANT & HAMILL, LLC 0.25% of their portfolio | 153.2k $24.2m | Reduced -7.2k |
| NZS Capital, LLC 1.01% of their portfolio | 127.6k $20.1m | Added +11.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 121.5k $19.2m | Reduced -25.2k |
| BARCLAYS PLC 0.01% of their portfolio | 120.2k $19.0m | Added +60.4k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.77% of their portfolio | 115.0k $18.1m | New |
| Ranger Investment Management, L.P. 1.08% of their portfolio | 114.0k $18.0m | Added +3.4k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 112.8k $17.8m | Added +371 |
| IEQ CAPITAL, LLC 0.34% of their portfolio | 106.2k $16.8m | Reduced -49.9k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 105.1k $16.6m | Reduced -1.8k |
| Allspring Global Investments Holdings, LLC 0.03% of their portfolio | 103.3k $16.3m | Added +7.6k |
| Grandeur Peak Global Advisors, LLC 0.97% of their portfolio | 90.4k $14.3m | Added +16.4k |
| DAVIDSON INVESTMENT ADVISORS 0.86% of their portfolio | 86.2k $13.6m | Added +326 |
| CITIGROUP INC 0.02% of their portfolio | 84.2k $13.3m | Added +29.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.07% of their portfolio | 82.1k $13.0m | Added +59.7k |
| Mirae Asset Global Investments Co., Ltd. 0.03% of their portfolio | 81.8k $12.9m | Added +1.9k |
| Legal & General Group Plc 0.00% of their portfolio | 81.5k $12.9m | Added +637 |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 80.6k $12.7m | Added +10.7k |
| TUDOR INVESTMENT CORP ET AL 0.21% of their portfolio | 80.1k $12.6m | Added +10.4k |
| S SQUARED TECHNOLOGY, LLC 5.70% of their portfolio | 73.0k $11.5m | Added +10.0k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.22% of their portfolio | 71.5k $11.3m | Added +14.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 70.2k $11.1m | Reduced -9.2k |
| Swiss National Bank 0.01% of their portfolio | 69.7k $11.0m | Reduced -2.1k |
| RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio | 69.2k $10.9m | Added +11.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 68.6k $10.8m | Reduced -67.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 68.2k $10.8m | Added +180 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 65.8k $10.4m | Reduced -111.6k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.06% of their portfolio | 63.3k $10.0m | Reduced -906 |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 62.5k $9.9m | Added +22.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 61.5k $9.7m | Reduced -6.5k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 61.1k $9.6m | Reduced -28.4k |
| SHELL ASSET MANAGEMENT CO 0.35% of their portfolio | 56.4k $8.9m | Added +12.9k |
| Avalon Global Asset Management LLC 4.26% of their portfolio | 55.4k $8.7m | Added +22.8k |
| Alberta Investment Management Corp 0.08% of their portfolio | 55.1k $8.7m | Added +37.4k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.31% of their portfolio | 53.9k $8.5m | Reduced -6.9k |
| UBS Group AG 0.00% of their portfolio | 53.0k $8.4m | Added +30.2k |
| Retirement Systems of Alabama 0.04% of their portfolio | 51.3k $8.1m | Reduced -444 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 48.0k $7.6m | Reduced -2.8k |
| Premier Fund Managers Ltd 0.29% of their portfolio | 47.3k $7.4m | Added +9.1k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 46.3k $7.3m | Reduced -4.3k |
| OSTERWEIS CAPITAL MANAGEMENT INC 0.47% of their portfolio | 44.9k $7.1m | Added +2.0k |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 44.4k $7.0m | Reduced -1.1k |
| Pier Capital, LLC 1.00% of their portfolio | 44.1k $7.0m | Added +637 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 42.3k $6.7m | Added +9.6k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 41.9k $6.6m | Reduced -505.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 41.6k $7.3m | Unchanged |
| GREAT LAKES ADVISORS, LLC 0.06% of their portfolio | 40.3k $6.4m | Reduced -26.4k |
| Granahan Investment Management, LLC 0.19% of their portfolio | 39.6k $6.3m | Added +2.4k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.07% of their portfolio | 39.5k $6.2m | Reduced -3.7k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 38.9k $6.1m | Added +27.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 38.7k $6.1m | Reduced -2.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio | 37.7k $5.9m | Reduced -5.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 36.6k $5.8m | Reduced -763 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 35.5k $5.6m | Reduced -1.4k |
| MetLife Investment Management, LLC 0.04% of their portfolio | 35.3k $5.6m | Reduced -211 |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 34.8k $5.5m | Added +18.6k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 32.7k $5.2m | Added +10.6k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 32.3k $5.1m | Added +12.3k |
| CAPITAL FUND MANAGEMENT S.A. 0.08% of their portfolio | 32.0k $5.0m | Reduced -10.0k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 31.5k $5.0m | Reduced -1.9k |
| ExodusPoint Capital Management, LP 0.06% of their portfolio | 31.3k $4.9m | Reduced -9.8k |
| GUGGENHEIM CAPITAL LLC 0.04% of their portfolio | 29.6k $4.7m | Reduced -14.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 28.8k $4.5m | Added +4.0k |
| TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio | 28.2k $4.4m | Reduced -434 |
| Fisher Asset Management, LLC 0.00% of their portfolio | 27.9k $4.4m | Added +1.5k |
| Moody Aldrich Partners LLC 0.84% of their portfolio | 27.3k $4.3m | Reduced -201 |