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
908 Devices Inc. (MASS)


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-10-06 Brown Christopher D. Chief Technology Officer Sell 15,000 $32.31 $484,651 No
2021-10-01 Knopp Kevin J. President and CEO Sell 20,000 $33.65 $673,019 No
2021-09-23 Basarsky Trent A. VP, Corporate Development Sell 6,000 $37.70 $226,218 Yes
2021-09-23 Basarsky Trent A. VP, Corporate Development Sell 6,000 $37.70 $226,218 No
2021-09-16 Kenneweg John Vice President, Government Sell 10,000 $36.61 $366,100 Yes
2021-09-09 Turner Michael S. VP, General Counsel Sell 21,848 $36.41 $795,563 Yes
2021-09-08 Griffith Joseph H. IV Chief Financial Officer Sell 49,898 $37.61 $1,876,724 Yes
2021-09-01 Knopp Kevin J. President and CEO Sell 20,000 $35.91 $718,183 No
2021-08-25 Basarsky Trent A. VP, Corporate Development Sell 36,997 $34.38 $1,271,786 Yes
2021-08-18 Knopp Kevin J. President and CEO Sell 35,000 $30.46 $1,066,202 No
2021-07-23 Basarsky Trent A. VP, Corporate Development Sell 21,000 $32.25 $677,331 Yes
2021-06-24 BARTHELEMY NICOLAS VP, Corporate Development Sell 13,000 $39.72 $516,370 Yes
2021-06-25 Basarsky Trent A. VP Corporate Development Sell 42,000 $39.67 $1,666,252 Yes
2021-06-16 Griffith Joseph H. IV Chief Financial Officer Sell 17,814 $39.32 $700,446 No
2020-12-22 HRUSOVSKY E KEVIN Director Buy 50,000 $20.00 $1,000,000 Yes
2020-12-22 Turner Michael S. VP, General Counsel Buy 5,000 $20.00 $100,000 No
2020-12-22 Kedar Sharon Director Buy 100,000 $20.00 $2,000,000 Yes
2020-12-22 ARCH Venture Fund VII, L.P. 10%-Owner Buy 300,000 $20.00 $6,000,000 Yes
2020-12-22 Basarsky Trent A. Vice President, Commercial Buy 5,000 $20.00 $100,000 No
2020-12-22 BARTHELEMY NICOLAS Director Buy 14,000 $20.00 $280,000 Yes
2020-12-22 CRANDELL KEITH 10%-Owner, Director Buy 300,000 $20.00 $6,000,000 Yes
2020-12-22 Spoto Mark Director Buy 1,000 $20.00 $20,000 Yes

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.

Insider Smart

Celldex Therapeutics, Inc. (CLDX) - Multiple insiders including President, EVP, CEO, CSO and Directors bought shares on Jun.9th, first time since 2018, this was very convincing and we initiated a position. Stock soared from $3 to 9$ in 2 days, and the run is still going on.