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Of the 14 tracked institutions holding SLAB, 7 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +4.0pt. It's a gauge of who owns the name, not just how many.
Among the 14 tracked institutional investors we monitor, SLAB (SILICON LABORATORIES INC) is held with a combined value of $2.56B across 13,332,565 shares. The largest holder is BlackRock, Inc. with a position worth $1.14B (0.02% of their portfolio). 8 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$2.56B
Total Shares Held
13,332,565
Institutional Holders
14
% of Shares Outstanding
40.0%
of 33.37M shares · SEC 2026-08-04
Days to Cover
14.5-1.3%
2.82M shares short · FINRA 2026-08-14
Tracked 13F institutions hold 40.0% of SLAB's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-08-04), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.14B | 0.02% | +4.0% |
| 2 | VANGUARD GROUP INC | $521.81M | 0.01% | +3.1% |
| 3 | STATE STREET CORP | $354.88M | 0.01% | +10.7% |
| 4 | MILLENNIUM MANAGEMENT LLC | $219.38M | 0.15% | +119.5% |
| 5 | Capital Research Global Investors | $103.06M | 0.01% | -41.9% |
| 6 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $75.00M | 0.11% | -39.4% |
| 7 | Magnetar Financial LLC | $54.91M | 0.50% | +2.2% |
| 8 | Grantham, Mayo, Van Otterloo & Co. LLC | $29.40M | 0.07% | +129.2% |
| 9 | CITADEL ADVISORS LLC | $21.08M | 0.01% | -71.8% |
| 10 | FMR LLC | $17.69M | 0.00% | +60.7% |
| Member | Type | Date |
|---|---|---|
| Gilbert Cisneros | Sell | May 6, 2025 |
| Gilbert Cisneros | Sell | Apr 14, 2025 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of SLAB with a position worth $1.14B, representing 0.02% of their portfolio. In total, 14 institutional investors hold SLAB with a combined value of $2.56B.
Institutional investors hold $2.56B worth of SLAB stock across 14 positions. The largest institutional holder is BlackRock, Inc. with $1.14B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For SLAB, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their SLAB positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$220.00
2026-09-08
YTD
+66.8%
99% of 52-week range
