Why insider trading matters?

When insiders buy shares on the open market, this can thus be regarded as a strong endorsement by those that know the company the best -- they are literally betting their own money on the company's future. Insider selling, however, is not necessarily meaningful in any way, as there is a range of reasons for insiders to liquidate (some) of the shares they own.

- Seeking Alpha
The Liberty SiriusXM Group (LSXMA)
Sector: Communication Services; Industry: Broadcasting

Formula One Group operates in the motorsports business. Formula One Group operates as a subsidiary of Liberty Media Corporation.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-12-31 MAFFEI GREGORY B President, CEO Sell 141,988 $62.63 $8,892,476 No
2021-12-23 MAFFEI GREGORY B President, CEO Sell 100,000 $61.26 $6,126,387 No
2021-12-28 MAFFEI GREGORY B President, CEO Sell 100,000 $61.75 $6,175,364 No
2019-12-12 MAFFEI GREGORY B President, CEO Sell 147,577 $47.70 $7,040,072 No
2019-12-11 MAFFEI GREGORY B President, CEO Sell 201,550 $47.32 $9,537,137 No
2019-12-09 MAFFEI GREGORY B President, CEO Sell 286,152 $47.25 $13,521,428 No
2019-12-05 MAFFEI GREGORY B President, CEO Sell 480,011 $46.21 $22,183,253 No
2019-12-03 MAFFEI GREGORY B President, CEO Sell 432,032 $46.39 $20,041,961 Yes
2019-11-29 MAFFEI GREGORY B President, CEO Sell 10,952 $27.95 $306,086 No
2019-11-26 MAFFEI GREGORY B President, CEO Sell 18,704 $27.52 $514,809 No
2019-11-22 MAFFEI GREGORY B President, CEO Sell 37,234 $27.14 $1,010,444 No
2019-11-20 MAFFEI GREGORY B President, CEO Sell 25,205 $27.77 $699,852 No
2019-11-18 MAFFEI GREGORY B President, CEO Sell 26,852 $27.83 $747,221 Yes
2018-12-04 MAFFEI GREGORY B President, CEO Buy 10,000 $30.12 $301,229 No
2014-12-19 MAFFEI GREGORY B President, CEO Sell 72,243 $33.83 $2,444,055 Yes

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