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
Generation Bio Co. (GBIO)
Sector: Healthcare; Industry: Biotechnology

Generation Bio Co. develops gene therapies for the treatment of genetic diseases. It focuses in the areas of liver, retinal, skeletal muscle, central nervous system, and oncology. Generation Bio Co. was founded in 2016 and is headquartered in Cambridge, Massachusetts.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2022-09-29 Paone Antoinette CHIEF OPERATING OFFICER Sell 2,828 $5.24 $14,819 No
2022-09-15 Paone Antoinette CHIEF OPERATING OFFICER Sell 4,610 $5.32 $24,525 No
2022-09-16 Rowland Charles A Jr Director Buy 50,628 $5.46 $276,241 No
2022-09-14 Rowland Charles A Jr Director Buy 24,384 $5.22 $127,404 No
2022-03-10 Nicholson Donald William Director Buy 10,419 $4.73 $49,257 No
2021-09-29 Rhodes Jason P Director Sell 81,088 $25.40 $2,059,519 No
2021-09-29 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 81,088 $25.40 $2,059,519 No
2021-09-24 Rhodes Jason P Director Sell 134,998 $26.02 $3,511,993 No
2021-09-24 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 134,998 $26.02 $3,511,993 No
2021-09-14 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 4,500 $28.07 $126,315 Yes
2021-06-24 Rhodes Jason P Director Sell 31,008 $25.85 $801,618 No
2021-06-24 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 31,008 $25.85 $801,618 No
2021-06-23 Rhodes Jason P Director Sell 185,078 $25.05 $4,635,967 No
2021-06-23 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 185,078 $25.05 $4,635,967 No
2021-06-15 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 1,500 $28.08 $42,120 Yes
2021-06-10 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 6,000 $27.23 $163,380 Yes
2021-05-27 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 1,500 $34.05 $51,075 Yes
2021-05-11 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 9,000 $30.61 $275,534 Yes
2021-05-03 Zimmermann Tracy CHIEF DEVELOPMENT OFFICER Sell 2,500 $35.70 $89,238 Yes
2021-04-23 MCDONOUGH GEOFF PRESIDENT AND CEO Sell 10,000 $35.10 $351,000 No
2021-04-22 Zimmermann Tracy CHIEF DEVELOPMENT OFFICER Sell 2,500 $33.32 $83,300 Yes
2021-04-22 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 3,000 $32.55 $97,650 Yes
2021-04-16 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 1,500 $28.03 $42,045 Yes
2021-04-14 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 140,682 $25.92 $3,646,968 No
2021-04-12 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 6,000 $26.24 $157,446 Yes
2021-04-09 ATLAS VENTURE ASSOCIATES X, L.P. 10%-Owner Sell 127,095 $28.20 $3,583,860 No
2021-04-09 Rhodes Jason P Director Sell 127,095 $28.20 $3,583,860 No
2021-04-05 Kerr Douglas CHIEF MEDICAL OFFICER Sell 14,072 $30.09 $423,451 Yes
2021-03-10 Stanton Matthew CHIEF SCIENTIFIC OFFICER Sell 10,500 $34.97 $367,210 Yes
2021-03-05 Kerr Douglas CHIEF MEDICAL OFFICER Sell 11,267 $31.44 $354,267 Yes

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.

Insider Smart

PENN NATIONAL GAMING INC (PENN) - PENN took a deep dive from $36 to $5 due to the crash, anyone who was bold enough to pick up some shares in March or April could have made a 900% profit in 2 months. But bottom fishing is always easier said than done, if one took a safer bet and followed multiple insider buying around $18, a 100% profit is still impressive.