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RJ

Robert Matthew Johnson

SLAB
PRESIDENT & CEO · SILICON LABORATORIES INC. · CIK 0001792014
FILING MIX · LIFETIME36%/64%
BUYS
14
SELLS
25
TOTAL VALUE
$14.41M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
80,519
AVG SELL PX
$148.77
TRADE KIND
SHOWING 39 / 39
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Robert Matthew Johnson, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d10+70.00%-1.94%-1.24%-0.70%-2.01%—
14d10+60.00%-2.28%-1.41%-0.87%-2.47%—
30d10+80.00%-7.53%-2.08%-5.45%-5.75%—
60d10+60.00%-3.58%+1.65%-5.22%-3.60%—
90d10+50.00%+0.55%+4.00%-3.45%-2.19%—
180d10+50.00%+6.28%+11.65%-5.38%-5.51%—
1y10+40.00%+15.47%+20.49%-5.02%-8.89%—
2y10(1 pending)+33.33%+20.27%+32.66%-19.36%-21.79%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SLAB · 80,519 shares · as of May 18, 2026
024,72749,45374,18098,906202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 14 buys / 25 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
8,024$216.83$1.74M80,519May 18, 2026May 19, 2026 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
10,363$216.59$2.24M88,543May 15, 2026May 19, 2026 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
25,218——98,906Feb 15, 2026Feb 17, 2026 ↗View →
NOVT
NOVANTA INC
PURCHASEGRANT
Stock grant
1,799——1,799Jan 2, 2026Jan 6, 2026 ↗View →
NOVT
NOVANTA INC
PURCHASE
1,325——2,143Jan 2, 2026Jan 6, 2026 ↗View →
NOVT
NOVANTA INC
SALE
1,325——0Jan 2, 2026Jan 6, 2026 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE10b5-1
10b5-1 plan
5,879$131.20$771.3K73,688May 16, 2025May 19, 2025 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
39,282——87,192May 15, 2025May 19, 2025 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
7,625$133.17$1.02M79,567May 15, 2025May 19, 2025 ↗View →
NOVT
NOVANTA INC
SALE
818——0May 8, 2025May 12, 2025 ↗View →
NOVT
NOVANTA INC
PURCHASE
818——818May 8, 2025May 12, 2025 ↗View →
NOVT
NOVANTA INC
PURCHASEGRANT
Stock grant
1,325——1,325Jan 2, 2025Jan 6, 2025 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE10b5-1
10b5-1 plan
7,230$123.80$895.1K47,910Jun 3, 2024Jun 3, 2024 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
9,373$131.57$1.23M31,184May 15, 2024May 17, 2024 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
23,956——55,140May 15, 2024May 17, 2024 ↗View →
NOVT
NOVANTA INC
PURCHASEGRANT
Stock grant
818——818May 8, 2024May 9, 2024 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
9,507——40,557Jan 18, 2024Jan 19, 2024 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE10b5-1
10b5-1 plan
3,679$108.22$398.1K31,050Dec 4, 2023Dec 5, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE10b5-1
10b5-1 plan
3,534$115.23$407.2K34,729Oct 2, 2023Oct 3, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE10b5-1
10b5-1 plan
3,498$144.06$503.9K38,263Aug 2, 2023Aug 2, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
15,992——41,761May 15, 2023May 16, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
3,537$136.32$482.2K25,769May 15, 2023May 16, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
865$188.45$163.0K29,306Feb 15, 2023Feb 16, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
1,107$156.91$173.7K30,171Jan 31, 2023Feb 2, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
4,405——31,278Jan 26, 2023Jan 26, 2023 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
5,435$149.38$811.9K26,873Jun 6, 2022Jun 7, 2022 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
18,197——32,308May 15, 2022May 16, 2022 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
1,151$143.62$165.3K14,111May 13, 2022May 16, 2022 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President & CEO
1,709$160.97$275.1K15,262Feb 15, 2022Feb 16, 2022 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President
4,829$157.74$761.7K16,971Aug 16, 2021Aug 16, 2021 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
President
3,133$158.64$497.0K21,800Aug 13, 2021Aug 16, 2021 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
8,778——24,933May 15, 2021May 18, 2021 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
3,968$153.19$607.9K16,155Feb 16, 2021Feb 17, 2021 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
1,399$154.34$215.9K20,123Feb 12, 2021Feb 16, 2021 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
5,692$100.12$569.9K21,522Aug 17, 2020Aug 18, 2020 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
2,269$100.57$228.2K27,214Aug 14, 2020Aug 18, 2020 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
1,925$95.99$184.8K29,483Feb 24, 2020Feb 25, 2020 ↗View →
SLAB
SILICON LABORATORIES INC.
SALE
SR VP & GM, IOT
619$100.40$62.1K31,408Feb 21, 2020Feb 24, 2020 ↗View →
SLAB
SILICON LABORATORIES INC.
PURCHASEGRANT
Stock grant
8,471——32,027Feb 15, 2020Feb 19, 2020 ↗View →
Other insiders · SLAB
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About this filer
CIK 0001792014
ROLE
President & CEO
PRIMARY
SLAB
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001792014DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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