Why insider trading matters?

Numerous studies have examined whether there is evidence that U.S. insiders systematically trade on private information despite the legal deterrence. The consensus appears to be that insider purchases (but not sales) tend to be followed by positive abnormal stock price performance, particularly for small growth stocks.

- Prof. B. Espen Eckbo, Dartmouth College
Interactive Brokers Group, Inc. (IBKR)
Sector: Financial Services; Industry: Capital Markets

Interactive Brokers Group, Inc. operates as an automated electronic broker worldwide. In addition, it offers custody, prime brokerage, securities, and margin lending services. It serves institutional and individual customers through approximately 120 electronic exchanges and market centers.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2022-01-19 Peterffy Thomas Chairman Sell 40,000 $72.65 $2,905,827 No
2022-01-12 Frank Thomas AJ Chief Information Officer Sell 32,818 $76.93 $2,524,830 No
2022-01-12 Peterffy Thomas Chairman Sell 40,000 $76.93 $3,077,064 No
2022-01-10 Peterffy Thomas Chairman Sell 40,000 $76.49 $3,059,722 No
2022-01-10 Frank Thomas AJ Chief Information Officer Sell 32,897 $76.51 $2,516,911 No
2022-01-06 Peterffy Thomas Chairman Sell 40,000 $77.47 $3,098,996 No
2022-01-06 Frank Thomas AJ Chief Information Officer Sell 33,683 $77.44 $2,608,486 No
2022-01-04 Frank Thomas AJ Chief Information Officer Sell 33,448 $79.21 $2,649,416 No
2021-12-31 Peterffy Thomas Chairman Sell 40,000 $80.18 $3,207,213 No
2021-12-31 Frank Thomas AJ Chief Information Officer Sell 32,660 $80.15 $2,617,748 No
2021-12-29 Peterffy Thomas Chairman Sell 40,000 $81.37 $3,254,958 No
2021-12-27 Peterffy Thomas Chairman Sell 40,000 $80.04 $3,201,636 No
2021-12-27 Frank Thomas AJ Chief Information Officer Sell 33,684 $80.04 $2,696,187 No
2021-12-22 Frank Thomas AJ Chief Information Officer Sell 33,684 $77.51 $2,610,681 No
2021-12-20 Frank Thomas AJ Chief Information Officer Sell 33,683 $76.34 $2,571,475 No
2021-12-16 Peterffy Thomas Chairman Sell 40,000 $77.51 $3,100,337 No
2021-12-16 Frank Thomas AJ Chief Information Officer Sell 33,133 $77.57 $2,570,074 No
2021-12-14 Peterffy Thomas Chairman Sell 40,000 $75.35 $3,013,844 No
2021-12-14 Frank Thomas AJ Chief Information Officer Sell 32,739 $75.40 $2,468,671 No
2021-12-10 Frank Thomas AJ Chief Information Officer Sell 32,975 $76.18 $2,511,936 No
2021-12-08 Frank Thomas AJ Chief Information Officer Sell 33,212 $76.83 $2,551,585 No
2021-12-06 Peterffy Thomas Chairman Sell 40,000 $75.29 $3,011,475 No
2021-12-06 Frank Thomas AJ Chief Information Officer Sell 30,378 $75.28 $2,286,823 No
2021-12-02 Peterffy Thomas Chairman Sell 41,300 $75.95 $3,136,873 No
2021-12-02 Frank Thomas AJ Chief Information Officer Sell 33,684 $75.97 $2,558,957 No
2021-11-30 Frank Thomas AJ Chief Information Officer Sell 33,605 $74.69 $2,510,067 No
2021-11-26 Frank Thomas AJ Chief Information Officer Sell 25,577 $76.51 $1,956,876 No
2021-11-26 Peterffy Thomas Chairman Sell 32,700 $76.35 $2,496,647 No
2021-11-23 Frank Thomas AJ Chief Information Officer Sell 33,133 $75.99 $2,517,848 No
2021-11-19 Peterffy Thomas Chairman Sell 40,000 $74.48 $2,979,121 No

Insider Smart

Planet Fitness, Inc (PLNT) - Our position in PLNT is also inspired by insider trading, if insiders are comfortable and confident buying around $50, it is an easy hold if you can pick it up at an even lower price. Our avg cost of the position is ~$40 and is now with 50% profit.

Insider Smart

Altimmune, Inc. (ALT) - Venrock Healthcare Capital Partners III, L.P., 10%-owner of ALT bought 1.3M shares in late May then added another 1.5M shares in June with an averaged ~$8 per share. 10 days after the accumulation, ALT price jumped to $10.