SLAB in the 13F filings
Silicon Laboratories Inc · CUSIP 826919102
- Quarter end
- 31 Mar 2024
- the date the book describes
- Filed
- 5 Nov 2026
- latest of these filings; the earliest 14 May 2024
- Managers listing it
- 4
- at least, of 95 tracked, among listed positions
- Comparable managers
- 93
- filed both Q4 2023 and Q1 2024; 3 listed it in both
- Shares listed
- 6,120,719
- combined, among listed positions
- Reported value
- $880m
- combined, at the quarter end
Among the 93 comparable managers: 4 buyers (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing SLAB in Q1 2024
4 of 4 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Fidelity (FMR LLC) | 4,788,184 | $688m | under 0.1% | Added | +21,306 | 5 Nov 2026 (the filing on sec.gov) |
| Capital Research Global Investors | 1,217,939 | $175m | under 0.1% | Added | +280,000 | 14 May 2024 (the filing on sec.gov) |
| Schonfeld Strategic Advisors LLC | 108,350 | $16m | 0.10% | Added | n.a. | 15 May 2024 (the filing on sec.gov) |
| PDT Partners LLC | 6,246 | $898k | 0.08% | Added | +698 | 15 May 2024 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Capital Research Global Investorsexisting position · 1,217,939 shares now+280,000
- Fidelity (FMR LLC)existing position · 4,788,184 shares now+21,306
- PDT Partners LLCexisting position · 6,246 shares now+698
Reductions
No reduction among listed positions.
New positions and exits
New (0)
No new position among listed positions.
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 3 | $103m | n.a. | n.a. |
| Q3 2013 | 3 | $126m | n.a. | n.a. |
| Q4 2013 | 4 | $142m | n.a. | n.a. |
| Q1 2014 | 10 | $736m | n.a. | n.a. |
| Q2 2014 | 7 | $639m | n.a. | n.a. |
| Q3 2014 | 4 | $45m | n.a. | n.a. |
| Q4 2014 | 2 | $41m | n.a. | n.a. |
| Q1 2015 | 3 | $364m | n.a. | n.a. |
| Q2 2015 | 4 | $465m | n.a. | n.a. |
| Q3 2015 | 3 | $74m | n.a. | n.a. |
| Q4 2015 | 4 | $369m | n.a. | n.a. |
| Q1 2016 | 4 | $353m | n.a. | n.a. |
| Q2 2016 | 4 | $385m | n.a. | n.a. |
| Q3 2016 | 5 | $505m | n.a. | n.a. |
| Q4 2016 | 6 | $574m | n.a. | n.a. |
| Q1 2017 | 6 | $667m | n.a. | n.a. |
| Q2 2017 | 7 | $574m | n.a. | n.a. |
| Q3 2017 | 9 | $803m | n.a. | n.a. |
| Q4 2017 | 6 | $917m | n.a. | n.a. |
| Q1 2018 | 6 | $927m | n.a. | n.a. |
| Q2 2018 | 7 | $1.0bn | n.a. | n.a. |
| Q3 2018 | 7 | $965m | n.a. | n.a. |
| Q4 2018 | 6 | $811m | n.a. | n.a. |
| Q1 2019 | 8 | $844m | n.a. | n.a. |
| Q2 2019 | 8 | $1.1bn | n.a. | n.a. |
| Q3 2019 | 6 | $1.2bn | n.a. | n.a. |
| Q4 2019 | 7 | $1.3bn | n.a. | n.a. |
| Q1 2020 | 9 | $928m | n.a. | n.a. |
| Q2 2020 | 10 | $1.1bn | n.a. | n.a. |
| Q3 2020 | 12 | $1.1bn | n.a. | n.a. |
| Q4 2020 | 9 | $1.4bn | n.a. | n.a. |
| Q1 2021 | 9 | $1.6bn | n.a. | n.a. |
| Q2 2021 | 8 | $1.8bn | n.a. | n.a. |
| Q3 2021 | 9 | $1.3bn | n.a. | n.a. |
| Q4 2021 | 8 | $1.9bn | n.a. | n.a. |
| Q1 2022 | 11 | $1.2bn | n.a. | n.a. |
| Q2 2022 | 6 | $940m | n.a. | n.a. |
| Q3 2022 | 5 | $786m | n.a. | n.a. |
| Q4 2022 | 6 | $846m | n.a. | n.a. |
| Q1 2023 | 11 | $1.2bn | n.a. | n.a. |
| Q2 2023 | 6 | $937m | n.a. | n.a. |
| Q3 2023 | 8 | $651m | n.a. | n.a. |
| Q4 2023 | 5 | $761m | 2 | 4 |
| Q1 2024 | 4 | $880m | 4 | 0 |
| Q2 2024 | 4 | $686m | 4 | 0 |
| Q3 2024 | 3 | $764m | 3 | 0 |
| Q4 2024 | 3 | $873m | 2 | 1 |
| Q1 2025 | 3 | $777m | 2 | 1 |
| Q2 2025 | 7 | $1.0bn | 5 | 2 |
| Q3 2025 | 5 | $895m | 3 | 3 |
| Q4 2025 | 5 | $817m | 11 | 19 |
| Q1 2026 | 12 | $670m | 21 | 12 |
| Q2 2026 | 10 | $913m | 18 | 12 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
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How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own SLAB, latest filings →Back to the 13F Explorer →