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
2022-01-14 Bruni Enrico Managing Director, Europe/Asia Sell 2,852 $91.20 $260,113 No
2022-01-14 Maisey Simon Managing Director, Corp. Dev. Sell 11,000 $91.19 $1,003,105 Yes
2022-01-10 Maisey Simon Managing Director, Corp. Dev. Sell 750 $90.65 $67,988 No
2022-01-05 Olesky Lee Chief Executive Officer Sell 137,036 $92.43 $12,666,679 No
2022-01-05 Hult William President Sell 114,585 $92.57 $10,606,578 No
2022-01-04 Peterson Justin Chief Technology Officer Sell 17,417 $93.60 $1,630,294 No
2022-01-04 Friedman Douglas General Counsel and Secretary Sell 17,809 $93.61 $1,667,082 No
2022-01-04 Zucker Scott Chief Admin. and Risk Officer Sell 14,532 $93.60 $1,360,196 No
2021-12-27 Bruni Enrico Managing Director, Europe/Asia Sell 20,000 $100.28 $2,005,590 Yes
2021-12-22 Bruni Enrico Managing Director, Europe/Asia Sell 590 $95.00 $56,050 Yes
2021-12-17 Bruni Enrico Managing Director, Europe/Asia Sell 94,410 $94.74 $8,944,557 Yes
2021-12-10 Maisey Simon Managing Director, Corp. Dev. Sell 750 $95.44 $71,580 No
2021-12-13 Hult William President Sell 12,788 $95.45 $1,220,672 Yes
2021-12-06 Olesky Lee Chief Executive Officer Sell 279,710 $94.60 $26,461,664 Yes
2021-11-10 Maisey Simon Managing Director, Corp. Dev. Sell 750 $95.22 $71,415 No
2021-11-12 Hult William President Sell 11,923 $95.08 $1,133,602 Yes
2021-11-09 Hult William President Sell 88,077 $95.15 $8,380,229 Yes
2021-11-04 Olesky Lee Chief Executive Officer Sell 268,957 $92.14 $24,781,351 Yes
2021-11-02 Peterson Justin Chief Technology Officer Sell 14,800 $89.60 $1,326,045 Yes
2021-10-11 Maisey Simon Managing Director, Corp. Dev. Sell 750 $83.67 $62,752 No
2021-09-09 Olesky Lee Chief Executive Officer Sell 100 $89.00 $8,900 Yes
2021-08-30 Peterson Justin Chief Technology Officer Sell 5,200 $89.57 $465,774 Yes
2021-08-10 Maisey Simon Managing Director, Corp. Dev. Sell 750 $88.82 $66,615 No
2021-07-12 Maisey Simon Managing Director, Corp. Dev. Sell 750 $87.02 $65,265 No
2021-06-25 Olesky Lee Chief Executive Officer Sell 91,553 $85.15 $7,795,817 Yes
2021-06-23 Hult William President Sell 116,445 $85.94 $10,007,116 Yes
2021-06-21 WARSHAW ROBERT J Chief Financial Officer Sell 16,022 $85.15 $1,364,217 Yes
2021-06-22 Olesky Lee Chief Executive Officer Sell 178,907 $85.61 $15,316,654 Yes
2021-06-17 Maisey Simon Managing Director, Corp. Dev. Sell 70,000 $84.57 $5,919,834 Yes
2021-06-17 WARSHAW ROBERT J Chief Financial Officer Sell 18,978 $85.04 $1,613,893 Yes

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