On I-HUB's price quote info when you click on it for further information, you can click on 'trades' and up comes the days action...buys/sells/prices/times...etc etc...
On one column after the ones for buys and sells...the column is labeled ( ? ).
What does this represent?
The stock involved shows all trades...six today as being these ( ? ) type trades. Eventually they're listed under the 'Buy Ind'.
This type of activity has been at play all year long...most trades find themselves listed in this manner.