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
Tradeweb Markets Inc. (TW)
Sector: Financial Services; Industry: Capital Markets

Tradeweb Markets Inc. builds and operates electronic marketplaces in the United States and internationally. It offers pre-trade data and analytics, trade execution, and trade processing, as well as post-trade data, analytics, and reporting services. Its customers include asset managers, hedge funds, insurance companies, central banks, banks and dealers, proprietary trading companies, retail brokerage and financial advisory companies, and regional dealers. The company was founded in 1996 and is headquartered in New York, New York.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-01-15 Maisey Simon Managing Director, Corp. Dev. Sell 1,900 $64.70 $122,932 No
2021-01-11 Maisey Simon Managing Director, Corp. Dev. Sell 7,500 $64.78 $485,830 Yes
2021-01-08 Bruni Enrico Managing Director, Europe/Asia Sell 119,709 $65.31 $7,818,067 Yes
2020-12-18 Olesky Lee Chief Executive Officer Sell 165,799 $68.19 $11,305,472 Yes
2020-12-16 Zucker Scott Chief Admin. and Risk Officer Sell 19,274 $65.83 $1,268,871 Yes
2020-12-15 WARSHAW ROBERT J Chief Financial Officer Sell 15,419 $65.33 $1,007,351 Yes
2020-12-11 Olesky Lee Chief Executive Officer Sell 191,496 $64.51 $12,354,351 Yes
2020-12-11 Friedman Douglas General Counsel and Secretary Sell 20,000 $64.90 $1,297,923 Yes
2020-12-09 Peterson Justin Chief Technology Officer Sell 25,000 $64.75 $1,618,725 Yes
2020-12-10 Olesky Lee Chief Executive Officer Sell 308,504 $64.36 $19,853,917 Yes
2020-12-10 Maisey Simon Managing Director, Corp. Dev. Sell 7,500 $508176.48 $3,811,323,628 Yes
2020-12-10 Hult William President Sell 300,000 $64.34 $19,302,498 Yes
2020-12-01 Zucker Scott Chief Admin. and Risk Officer Sell 10,000 $60.04 $600,409 Yes
2020-12-01 Hult William President Sell 50,000 $60.05 $3,002,594 Yes
2020-12-01 Friedman Douglas General Counsel and Secretary Sell 10,000 $60.05 $600,492 Yes
2020-11-16 WARSHAW ROBERT J Chief Financial Officer Sell 16,000 $59.69 $955,025 Yes
2020-11-10 Maisey Simon Managing Director, Corp. Dev. Sell 7,500 $57.73 $432,974 Yes
2020-11-02 Zucker Scott Chief Admin. and Risk Officer Sell 10,000 $55.24 $552,442 Yes
2020-11-02 Friedman Douglas General Counsel and Secretary Sell 10,000 $55.25 $552,491 Yes
2020-11-02 Hult William President Sell 50,000 $55.25 $2,762,429 Yes
2020-10-22 Olesky Lee Chief Executive Officer Sell 37,011 $60.16 $2,226,766 Yes
2020-10-15 WARSHAW ROBERT J Chief Financial Officer Sell 16,000 $58.49 $935,795 Yes
2020-10-14 Olesky Lee Chief Executive Officer Sell 4,315 $60.08 $259,256 Yes
2020-10-12 Peterson Justin Chief Technology Officer Sell 25,000 $59.64 $1,491,054 Yes
2020-10-12 Maisey Simon Managing Director, Corp. Dev. Sell 7,500 $59.75 $448,162 Yes
2020-10-13 Olesky Lee Chief Executive Officer Sell 84,270 $60.21 $5,073,755 Yes
2020-10-13 Hult William President Sell 3,300 $60.08 $198,254 Yes
2020-10-01 Zucker Scott Chief Admin. and Risk Officer Sell 10,000 $58.50 $584,991 Yes
2020-10-01 Hult William President Sell 50,000 $58.50 $2,925,025 Yes
2020-10-01 Friedman Douglas General Counsel and Secretary Sell 10,000 $58.50 $584,986 Yes

Insider Smart

Delta Airlines (DAL) - From an insider's perspective: airlines are the first ones to go under due to the pandemic. A lot of concerns were raised on possible bankruptcy especially amid by the dump from Buffett. However, insiders of Delta were bold enough to buy when Buffett was fear. And Delta is the only airline bought by insiders post-Buffett-dump.

Insider Smart

Carvana Co (CVNA) - One of the best timed insider buying in the crash is from GARCIA ERNEST C. II 10%-owner of CVNA. Bought at 45 and now with a 100%+ profit.