Why insider trading matters?

If management teams do not own any relevant stakes in the companies they guide, they may not be focused on creating wealth for shareholders to the same degree, compared to those that see their personal wealth increase when share prices rise.

- Klaus Gugler, Economist
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
2022-09-01 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 1,818 $28.00 $50,904 No
2022-08-25 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 800 $29.18 $23,344 No
2022-08-23 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 1,000 $28.94 $28,940 No
2022-08-15 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 300 $28.54 $8,562 No
2022-07-08 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 500 $26.26 $13,130 No
2022-06-27 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 2,000 $25.00 $50,000 No
2022-05-11 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 1,000 $25.55 $25,550 No
2022-04-25 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 6,000 $27.17 $163,028 No
2022-04-21 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 3,000 $27.96 $83,880 No
2022-04-01 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 4,500 $28.96 $130,328 No
2022-03-15 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 5,000 $26.75 $133,760 No
2022-01-21 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 2,000 $26.24 $52,489 No
2022-01-04 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 2,500 $28.60 $71,491 No
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
2021-11-01 WESCHLER, R. TED Member of 10% owner group Buy 5,347,320 $50.02 $267,449,418 No
2021-05-12 RAPLEY DAVID E Director Sell 1,200 $41.92 $50,307 No
2020-11-23 MALONE JOHN C Chairman of the Board Sell 360,724 $39.01 $14,073,561 No
2020-08-13 RAPLEY DAVID E Director Sell 2,021 $36.10 $72,958 No
2020-06-18 MALONE JOHN C Chairman of the Board Sell 500,000 $36.21 $18,104,167 No
2022-01-21 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 2,000 $26.24 $52,489 No
2022-01-20 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 1,000 $26.15 $26,150 No
2022-01-04 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 2,500 $28.60 $71,491 No
2021-12-28 MAFFEI GREGORY B President, CEO Sell 100,000 $61.75 $6,175,364 No
2021-12-28 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 500 $28.63 $14,315 No
2021-12-23 GAMCO INVESTORS, INC. ET AL 10%-Owner Buy 500 $28.71 $14,357 No
2021-12-08 Gilchrist Malcolm Ian Grant Director Sell 3,769 $54.43 $205,138 Yes
2021-12-02 MALONE JOHN C Chairman of the Board Sell 399,000 $50.30 $20,068,668 No
2021-11-09 RAPLEY DAVID E Director Sell 3,872 $53.61 $207,585 Yes
2021-11-01 BERKSHIRE HATHAWAY INC 10%-Owner Buy 5,347,320 $50.02 $267,449,418 No

Insider Smart

PROSPECT CAPITAL CORP (PSEC) - PSEC is the 2nd most bought stock of the past 90 days by insiders, CEO seems very confident about the company.

Insider Smart

Enphase Energy, Inc (ENPH) - ENPH was $10+ in 15Q1 then dropped to $2 and eventually went under $1. From 15Q4 to 17Q4 it built a 2-year-long base then BOOM! Stock went as high as $70 and likely will make a new high. Catch one or two moves like this you can retire early. One hint before the big move was that CEO and CFO were constantly accumulating, this kind of information is priceless.