Why insider trading matters?

What separates FormWhispers.com from others is that we created it to meet our own needs and we use it everyday to make better investment decisions. We will keep improving it to serve us better and to serve you better.

- Founders of FormWhispers.com
Gritstone Oncology, Inc. (GRTS)
Sector: Healthcare; Industry: Biotechnology

Gritstone Oncology, Inc., an immuno-oncology company, engages in developing tumor-specific cancer immunotherapies to fight various cancer types.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2021-05-27 Rousseau Raphael nan Sell 2,900 $9.00 $26,112 Yes
2021-01-20 Rousseau Raphael nan Sell 30,000 $20.04 $601,269 Yes
2021-01-19 Yelensky Roman nan Sell 10,000 $22.10 $221,029 No
2020-12-30 Woiwode Thomas Director Buy 1,347,709 $3.71 $5,000,000 No
2019-08-21 Rousseau Raphael See Remarks Sell 10,000 $10.76 $107,631 Yes
2018-09-28 Simon Nicholas 10%-Owner, Director Buy 333,333 $15.00 $4,999,995 Yes
2018-09-28 Clarus Lifesciences III, L.P. 10%-Owner Buy 333,333 $15.00 $4,999,995 Yes

Insider Smart

SYSCO CORP (SYY) - PELTZ NELSON and Frank Joshua D are insiders of SYSCO CORP, check their transactions to see how they sell high and buy low. Would that be more persuasive than just buy or sell?

Insider Smart

SIMON PROPERTY GROUP (SPG) - Bottom fishing the crash could be intimidating, but it can be easier if you know insiders are on your side. Aeppel Glyn, Director of SPG played safe and bought shares in May at $50, but it is not late at all, the stock is now $90.