Silicon Laboratories
SLAB
334 hedge funds and large institutions have $4.3B invested in Silicon Laboratories in 2025 Q3 according to their latest regulatory filings, with 48 funds opening new positions, 118 increasing their positions, 115 reducing their positions, and 42 closing their positions.
379% more call options, than puts
Call options by funds: $11.1M | Put options by funds: $2.32M
14% more first-time investments, than exits
New positions opened: 48 | Existing positions closed: 42
3% more repeat investments, than reductions
Existing positions increased: 118 | Existing positions reduced: 115
1% more funds holding
Funds holding: 331 → 334 (+3)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
4.64% less ownership
Funds ownership: 104.69% → 100.06% (-4.6%)
14% less capital invested
Capital invested by funds: $5.02B → $4.3B (-$711M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Westfield Capital Management
Boston,
Massachusetts
|
+$46.6M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
+$45.1M |
| 3 |
Squarepoint
New York
|
+$25.9M |
| 4 |
Goldman Sachs
New York
|
+$23.3M |
| 5 |
BlackRock
New York
|
+$15.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Pathstone Holdings
Englewood,
New Jersey
|
-$124M |
| 2 |
Capital Research Global Investors
Los Angeles,
California
|
-$53.8M |
| 3 |
WRCM
Whale Rock Capital Management
Boston,
Massachusetts
|
-$36.6M |
| 4 |
Walleye Trading
New York
|
-$31.4M |
| 5 |
VBA
Van Berkom & Associates
Montreal,
Quebec, Canada
|
-$23.7M |
SLAB Hedge Fund Activity: Q3 2025 in Review
334 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in Silicon Laboratories (SLAB) for Q3 2025, worth a combined $4.3B — down 14% from $5.02B a quarter earlier.
Buyers outnumbered sellers: 48 funds opened new SLAB positions and 42 closed out — a net gain of 6 holders — while 118 added to existing stakes and 115 trimmed.
The largest buyer was Westfield Capital Management, opening a new position worth an estimated $46.6M. The largest seller was Pathstone Holdings, cutting an estimated $124M.
- 334 institutional investors held Silicon Laboratories (SLAB) as of Q3 2025, up from 331 in Q2 2025.
- Funds reported $4.3B of Silicon Laboratories stock for Q3 2025, down 14% quarter-over-quarter.
- 48 funds opened new Silicon Laboratories positions in Q3 2025 and 42 closed out, a net change of +6 holders.
- The largest Silicon Laboratories buyer in Q3 2025 was Westfield Capital Management, an estimated $46.6M added.
- The largest Silicon Laboratories seller in Q3 2025 was Pathstone Holdings, an estimated $124M sold.
Based on aggregated 13F filings for Q3 2025.