InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
OtherDisclosed buys
0
Disclosed sells
0
T+90 hit rate
57%
T+90 mean return
+10.2%
Across 23 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by CHEW LEWIS. Insider active across 5 companies, notably Dolby Laboratories, Inc.. Cumulatively, 32 disclosures have been recorded. History available since 20 May 2021. The latest transaction was filed on 20 May 2026 (Levée d'options). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations32 total
971 shares0Common StockSEC:0001596532-26-000092:0
844 sharesCommon StockSEC:0001596532-25-000130:0
779 shares0Common StockSEC:0000813672-25-000064:0
739 shares0Common StockSEC:0001035267-25-000127:0
844 shares0Common StockSEC:0001596532-25-000043:0
212 shares0Common StockSEC:0001596532-24-000384:0
211 shares0Common StockSEC:0001596532-24-000302:0
372 shares0Common StockSEC:0001596532-24-000202:0
868 shares0Common StockSEC:0000813672-24-000109:0
373 shares0Common StockSEC:0001596532-24-000078:0
372 shares0Common StockSEC:0001596532-23-000308:0
373 sharesCommon StockSEC:0001596532-23-000223:0
510 shares0Common StockSEC:0001596532-23-000129:0
1,073 shares0Common StockSEC:0001209191-23-027999:0
511 shares0Common StockSEC:0001596532-23-000040:0
510 shares0Common StockSEC:0001596532-22-000322:0
511 shares0Common StockSEC:0001596532-22-000252:0
616 shares0Common StockSEC:0001596532-22-000144:0
1,473 shares0Common StockSEC:0001209191-22-027934:0
612 shares0Common StockSEC:0001596532-22-000058:0
616 shares0Common StockSEC:0001596532-21-000403
616 shares0Common StockSEC:0001596532-21-000403:0
154 shares0Common StockSEC:0001596532-21-000290:0
154 shares0Common StockSEC:0001596532-21-000290
30,000 shares@ US$33.1514.4% of flowClass A Common StockSEC:0001209191-21-052345
25 of 32 declarations
About CHEW LEWIS
Lewis Chew is an executive at Dolby Laboratories, Inc.
