SILICON LABORATORIES INC.
SLAB · Semiconductors & Related Devices · 33.0M shares · -8%/yr ↓ buyback · EDGAR filings ↗
Net buyback after stock comp: $169M (gross $217M, SBC $48M)
Reference price $216.83 · est. market cap ~$7.2B — last insider sale, 2026-05-18 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
C56IoT/edge chipmaker recovering strongly on revenue but still loss-making; a merger is pending.
Strengths
- Strong revenue recovery — +34.3% (73rd)
- Strong liquidity — current ratio 4.69 (73rd)
- Positive FCF — $65.8M
Risks
- Net loss — operating margin -9.0%, net margin -8.3%, net income -66.0%
- Pending merger — risk factors are dominated by a proposed Merger and its uncertainties
- Semiconductor cyclicality — per 10-K
Notable findings
- Net lossNet loss (net margin -8.3%)
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC, Bridgewater Associates, LP
- Material weaknessSummary Risks Related to the Proposed Merger • We may not complete the proposed Merger within the time frame we anticipate, or at all, which could have an adverse effect on our business, financial
- Buying back stockNet buyback — share count -8%/yr over 4y
- Strong balance sheetStrong balance sheet — $291M cash & investments
- Notable holderHeld by 5 notable fund(s): STATE STREET CORP, GOLDMAN SACHS GROUP INC, CITADEL ADVISORS LLC +2 more (as of 2026-03-31)
- Pending mergerSummary Risks Related to the Proposed Merger • We may not complete the proposed Merger within the time frame we anticipate, or at all, which could have an adverse effect on our business, financial
- AccumulatingInstitutional holders rose 9→10 QoQ (2025-12-31→2026-03-31)
- Insider sellingInsider selling — 2 open-market sale(s) by 2 insider(s) (cluster of 2 insiders, ~$2M, last 6mo) Form 4 ↗
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
58.2%
Operating margin
-9.0%
Net margin
-8.3%
Return on equity
-5.9%
Return on assets
-5.1%
Revenue growth (QoQ)
2.5%
Current ratio
4.7×
Free cash flow
$66M
Tangible book value
$695M
Cash & investments
$291M
Stock comp / revenue
10.2%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-05-18 | Johnson Robert Matthew | Sell | 8.0K | $216.83 |
| 2026-05-15 | Butler Dean Warren | Tax withheld | 6.3K | $216.59 |
| 2026-05-15 | Johnson Robert Matthew | Tax withheld | 10K | $216.59 |
| 2026-05-15 | CONRAD ROBERT J | Tax withheld | 3.7K | $216.59 |
| 2026-05-15 | MAULDIN MARK D | Tax withheld | 858 | $216.59 |
| 2026-05-15 | Tolany Brandon | Tax withheld | 4.2K | $216.59 |
| 2026-04-30 | Butler Dean Warren | Grant | 152 | $86.46 |
| 2026-04-30 | MAULDIN MARK D | Grant | 18 | $86.46 |
| 2026-04-30 | Tolany Brandon | Grant | 45 | $86.46 |
| 2026-04-23 | Wyatt Christy | Grant | 962 | — |
| 2026-04-23 | SOOCH NAVDEEP S | Grant | 1.2K | — |
| 2026-04-23 | Sadana Sumit | Grant | 962 | — |
| 2026-04-23 | Richardson Nina | Grant | 962 | — |
| 2026-04-23 | BOCK WILLIAM G | Grant | 962 | — |
| 2026-04-23 | LOWE GREGG A | Grant | 962 | — |
| 2026-04-23 | Luther Sherri R | Grant | 962 | — |
| 2026-02-15 | Johnson Robert Matthew | Grant | 25K | — |
| 2026-02-15 | MAULDIN MARK D | Grant | 3.2K | — |
| 2026-02-15 | Tolany Brandon | Grant | 8.7K | — |
| 2026-02-15 | CONRAD ROBERT J | Grant | 8.7K | — |
| 2026-02-15 | Butler Dean Warren | Grant | 11K | — |
| 2026-02-13 | MAULDIN MARK D | Tax withheld | 356 | $207.27 |
| 2026-01-13 | Richardson Nina | Sell | 1.4K | $149.00 |
| 2025-12-05 | Tolany Brandon | Option exercise | 2.0K | $43.82 |
| 2025-12-05 | Tolany Brandon | Sell | 2.0K | $141.49 |
| 2025-12-04 | Tolany Brandon | Option exercise | 4.2K | $43.82 |
| 2025-12-04 | Tolany Brandon | Sell | 4.2K | $140.17 |
| 2025-10-31 | Butler Dean Warren | Grant | 177 | $86.46 |
| 2025-10-31 | MAULDIN MARK D | Grant | 21 | $86.46 |
| 2025-10-31 | Tolany Brandon | Grant | 53 | $86.46 |
| 2025-08-29 | Tolany Brandon | Option exercise | 1.8K | $43.82 |
| 2025-08-29 | Tolany Brandon | Sell | 1.8K | $133.57 |
| 2025-08-22 | Tolany Brandon | Sell | 8.0K | $145.23 |
| 2025-08-22 | Tolany Brandon | Option exercise | 8.0K | $43.82 |
| 2025-08-19 | Tolany Brandon | Sell | 2.3K | $132.69 |
| 2025-08-19 | Tolany Brandon | Option exercise | 35 | $43.82 |
| 2025-08-19 | Tolany Brandon | Option exercise | 2.2K | $43.82 |
| 2025-05-16 | Johnson Robert Matthew | Sell | 5.9K | $131.20 |
| 2025-05-16 | CONRAD ROBERT J | Sell | 4.0K | $131.20 |
| 2025-05-15 | Butler Dean Warren | Grant | 15K | — |
| 2025-05-15 | Butler Dean Warren | Tax withheld | 4.1K | $133.17 |
| 2025-05-15 | CONRAD ROBERT J | Grant | 4.9K | — |
| 2025-05-15 | CONRAD ROBERT J | Grant | 9.8K | — |
| 2025-05-15 | CONRAD ROBERT J | Tax withheld | 1.3K | $133.17 |
| 2025-05-15 | Johnson Robert Matthew | Grant | 39K | — |
| 2025-05-15 | MAULDIN MARK D | Grant | 2.5K | — |
| 2025-05-15 | MAULDIN MARK D | Tax withheld | 878 | $133.17 |
| 2025-05-15 | Tolany Brandon | Grant | 21K | — |
| 2025-05-15 | Tolany Brandon | Tax withheld | 2.5K | $133.17 |
| 2025-05-15 | Johnson Robert Matthew | Tax withheld | 7.6K | $133.17 |
| 2025-05-13 | CONRAD ROBERT J | Sell | 1.2K | $130.00 |
| 2025-05-06 | Wyatt Christy | Sell | 546 | $104.45 |
| 2025-04-30 | Tolany Brandon | Grant | 48 | $86.46 |
| 2025-04-30 | MAULDIN MARK D | Grant | 19 | $86.46 |
| 2025-04-30 | Butler Dean Warren | Grant | 164 | $86.46 |
| 2025-04-24 | Luther Sherri R | Grant | 1.8K | — |
| 2025-04-24 | Wyatt Christy | Grant | 1.8K | — |
| 2025-04-24 | LOWE GREGG A | Grant | 1.8K | — |
| 2025-04-24 | BOCK WILLIAM G | Grant | 1.8K | — |
| 2025-04-24 | Richardson Nina | Grant | 1.8K | — |
| 2025-04-24 | Sadana Sumit | Grant | 1.8K | — |
| 2025-04-24 | SOOCH NAVDEEP S | Grant | 2.3K | — |
| 2025-02-18 | BOCK WILLIAM G | Sell | 1.0K | $149.43 |
| 2025-02-14 | MAULDIN MARK D | Tax withheld | 367 | $149.54 |
| 2025-02-06 | SOOCH NAVDEEP S | Sell | 2.6K | $149.08 |
| 2025-02-05 | SOOCH NAVDEEP S | Sell | 2.4K | $149.00 |
| 2025-01-22 | BOCK WILLIAM G | Sell | 2.0K | $140.77 |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-05-26 | 2026-05-22 | 0001193125-26-237879 ↗ |
| 10-Q | 2026-05-05 | 2026-04-04 | 0001038074-26-000020 ↗ |
| 8-K | 2026-05-05 | 2026-05-05 | 0001038074-26-000018 ↗ |
| 8-K | 2026-04-30 | 2026-04-30 | 0001038074-26-000014 ↗ |
| 8-K | 2026-04-24 | 2026-04-23 | 0001038074-26-000012 ↗ |
| 10-K | 2026-02-10 | 2026-01-03 | 0001038074-26-000005 ↗ |
| 8-K | 2026-02-04 | 2026-02-04 | 0001038074-26-000002 ↗ |
| 8-K | 2026-02-04 | 2026-02-04 | 0001193125-26-036712 ↗ |
| 8-K | 2025-11-04 | 2025-11-04 | 0001038074-25-000021 ↗ |
| 10-Q | 2025-11-04 | 2025-10-04 | 0001038074-25-000023 ↗ |
| 8-K | 2025-08-05 | 2025-08-05 | 0001038074-25-000012 ↗ |
| 10-Q | 2025-08-05 | 2025-07-05 | 0001038074-25-000014 ↗ |