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Of the 15 tracked institutions holding SLAB, 8 have a 3-year clone track record — 7 of them beat the S&P. Average holder's clone alpha: +3.7pt. It's a gauge of who owns the name, not just how many.
Among the 15 tracked institutional investors we monitor, SLAB (SILICON LABORATORIES INC) is held with a combined value of $2.50B across 13,512,603 shares. The largest holder is BlackRock, Inc. with a position worth $1.04B (0.02% of their portfolio). 2 funds opened new positions in the most recent quarter. 7 funds increased their holdings. 5 funds reduced their position.
Total Institutional Value
$2.50B
Total Shares Held
13,512,603
Institutional Holders
15
% of Shares Outstanding
41.0%
of 32.98M shares · SEC 2026-04-28
Days to Cover
3.6+6.5%
2.31M shares short · FINRA 2026-06-30
Tracked 13F institutions hold 41.0% 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 2026-04-28), 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. | $1.04B | 0.02% | +4.7% |
| 2 | VANGUARD GROUP INC | $521.81M | 0.01% | +3.1% |
| 3 | STATE STREET CORP | $305.37M | 0.01% | -4.9% |
| 4 | Capital Research Global Investors | $169.00M | 0.03% | - |
| 5 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $117.88M | 0.18% | -8.1% |
| 6 | MILLENNIUM MANAGEMENT LLC | $95.17M | 0.04% | +5252.3% |
| 7 | CITADEL ADVISORS LLC | $71.08M | 0.05% | +2529.2% |
| 8 | AQR CAPITAL MANAGEMENT LLC | $57.13M | 0.03% | -58.0% |
| 9 | Magnetar Financial LLC | $51.17M | 0.52% | New |
| 10 | RENAISSANCE TECHNOLOGIES LLC | $32.28M | 0.05% | +121.6% |
| 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 $1.04B, representing 0.02% of their portfolio. In total, 15 institutional investors hold SLAB with a combined value of $2.50B.
In the most recent quarter, 2 funds opened a new position in SLAB. Additionally, 7 increased their holdings and 5 reduced their positions.
Institutional investors hold $2.50B worth of SLAB stock across 15 positions. The largest institutional holder is BlackRock, Inc. with $1.04B 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
$216.88
2026-07-24
YTD
+64.4%
97% of 52-week range
