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JG

Julius Genachowski

SONO
DIRECTOR · SONOS INC · CIK 0001184231
FILING MIX · LIFETIME60%/40%
BUYS
34
SELLS
23
TOTAL VALUE
$4.22M
COMPANIES
4
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
20,731
AVG SELL PX
$29.43
TRADE KIND
SHOWING 57 / 57
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
8 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Julius Genachowski, 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
7d8+50.00%+4.45%+0.70%+3.74%-0.14%—
14d8+25.00%+8.66%+1.22%+7.44%+2.96%—
30d8+12.50%+13.77%+3.45%+10.32%+6.07%—
60d8+12.50%+22.95%+5.88%+17.07%+11.89%—
90d8+25.00%+36.42%+8.96%+27.47%+19.16%—
180d8+37.50%+32.07%+14.15%+17.92%+10.37%—
1y8+50.00%+27.02%+27.31%-0.29%-1.21%—
2y8(3 pending)+80.00%-14.91%+17.20%-32.11%-36.89%—
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
SONO · 0 shares · as of Jul 29, 2026
032,57865,15697,734130,312202120222023202420252026SHARES 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
2026
FLOW · 34 buys / 23 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SONO
SONOS INC
PURCHASE
19,855$13.56$269.2K73,630Jul 29, 2026Jul 30, 2026 ↗View →
SONO
SONOS INC
SALE
19,855$17.00$337.5K53,775Jul 29, 2026Jul 30, 2026 ↗View →
SONO
SONOS INC
SALE
19,855——0Jul 29, 2026Jul 30, 2026 ↗View →
SONO
SONOS INC
PURCHASE
19,855$13.56$269.2K73,630Jul 28, 2026Jul 30, 2026 ↗View →
SONO
SONOS INC
SALE10b5-1
10b5-1 plan
19,855$16.50$327.6K53,775Jul 28, 2026Jul 30, 2026 ↗View →
SONO
SONOS INC
SALE
19,855——19,855Jul 28, 2026Jul 30, 2026 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
509——8,978Jun 16, 2026Jun 18, 2026 ↗View →
MAT
MATTEL INC /DE/
PURCHASEGRANT
Stock grant
11,753——11,753May 28, 2026Jun 1, 2026 ↗View →
SONO
SONOS INC
SALEGRANT
Gift
15,427——53,775Mar 6, 2026Mar 10, 2026 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Gift
15,427——92,484Mar 6, 2026Mar 10, 2026 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
4,772——69,202Mar 5, 2026Mar 6, 2026 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
12,725——64,430Mar 5, 2026Mar 6, 2026 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Gift
77,057——77,057Nov 10, 2025Nov 12, 2025 ↗View →
SONO
SONOS INC
SALEGRANT
Gift
77,057——51,705Nov 10, 2025Nov 12, 2025 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Gift
1,550——1,550Nov 7, 2025Nov 12, 2025 ↗View →
SONO
SONOS INC
SALEGRANT
Gift
1,550——128,762Nov 7, 2025Nov 12, 2025 ↗View →
MA
MASTERCARD INC
SALEGRANT
Gift
45——1,745.173Oct 31, 2025Nov 3, 2025 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Gift
45——45Oct 31, 2025Nov 3, 2025 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
5,916——130,312Sep 2, 2025Sep 4, 2025 ↗View →
SONO
SONOS INC
PURCHASE
22,850$10.95$250.2K124,396Aug 8, 2025Aug 11, 2025 ↗View →
MA
MASTERCARD INC
SALE10b5-1
10b5-1 plan
312$570.67$178.0K8,469Jul 7, 2025Jul 8, 2025 ↗View →
MA
MASTERCARD INC
SALE10b5-1
10b5-1 plan
310$561.00$173.9K8,323Jun 24, 2025Jun 26, 2025 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
458——8,781Jun 24, 2025Jun 26, 2025 ↗View →
MAT
MATTEL INC /DE/
PURCHASEGRANT
Stock grant
9,196——9,196May 28, 2025May 30, 2025 ↗View →
MAT
MATTEL INC /DE/
PURCHASEGRANT
Stock grant
6,305$19.03$120.0K6,305May 28, 2025May 30, 2025 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
15,427——101,546Mar 11, 2025Mar 13, 2025 ↗View →
MA
MASTERCARD INC
SALEGRANT
Gift
180——8,453Feb 14, 2025Feb 18, 2025 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Gift
180——2,150.173Feb 14, 2025Feb 18, 2025 ↗View →
MA
MASTERCARD INC
SALEGRANT
Gift
180——1,790.173Feb 14, 2025Apr 2, 2025 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
545——8,633Jun 18, 2024Jun 21, 2024 ↗View →
MAT
MATTEL INC /DE/
PURCHASEGRANT
Stock grant
9,972——9,972May 29, 2024May 31, 2024 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
10,656——86,119Mar 11, 2024Mar 13, 2024 ↗View →
MAT
MATTEL INC /DE/
PURCHASEGRANT
Stock grant
2,978——2,978Feb 5, 2024Feb 7, 2024 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
642——8,088Jun 27, 2023Jun 29, 2023 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
10,011——75,463Mar 9, 2023Mar 13, 2023 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
741——7,446Jun 21, 2022Jun 23, 2022 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
7,493——65,452Mar 10, 2022Mar 14, 2022 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
622——6,705Jun 22, 2021Jun 24, 2021 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
5,337——57,959Mar 11, 2021Mar 15, 2021 ↗View →
SONO
SONOS INC
PURCHASE
15,000$5.00$75.0K67,622Feb 11, 2021Feb 12, 2021 ↗View →
SONO
SONOS INC
SALE
15,000$35.73$535.9K52,622Feb 11, 2021Feb 12, 2021 ↗View →
SONO
SONOS INC
SALE
15,000——0Feb 11, 2021Feb 12, 2021 ↗View →
SONO
SONOS INC
SALE
15,000$22.03$330.4K52,622Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
SALE
15,000——30,000Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
PURCHASE
15,000$5.00$75.0K82,622Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
SALE
15,000——15,000Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
SALE
15,000$20.51$307.6K67,622Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
PURCHASE
15,000$5.00$75.0K67,622Nov 19, 2020Nov 20, 2020 ↗View →
SONO
SONOS INC
PURCHASE
15,000$5.00$75.0K67,622Nov 16, 2020Nov 17, 2020 ↗View →
SONO
SONOS INC
SALE
15,000$17.00$255.0K52,622Nov 16, 2020Nov 17, 2020 ↗View →
SONO
SONOS INC
SALE
15,000——45,000Nov 16, 2020Nov 17, 2020 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Stock grant
707——6,083Jun 16, 2020Jun 18, 2020 ↗View →
MA
MASTERCARD INC
SALEGRANT
Gift
1,970.173——5,376May 11, 2020May 12, 2020 ↗View →
MA
MASTERCARD INC
SALE
2,009$281.79$566.1K7,346.173May 11, 2020May 12, 2020 ↗View →
MA
MASTERCARD INC
PURCHASEGRANT
Gift
1,970.173——1,970.173May 11, 2020May 12, 2020 ↗View →
S
SENTINELONE, INC.
SALE
190,703——0Apr 1, 2020Apr 2, 2020 ↗View →
SONO
SONOS INC
PURCHASEGRANT
Stock grant
12,792——52,622Feb 27, 2020Mar 2, 2020 ↗View →
Other insiders · SONO
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About this filer
CIK 0001184231
ROLE
Director
PRIMARY
SONO
COMPANIES
4
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001184231DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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