You may recall that last week (July 9th) the TMX daily insider trading marker flagged a large insider sell for PTK.V
Today a correction was filed reversing that insider sell marker. This may still have been MB exercising/selling options, but he technically was no longer an insider after July 1st, so a correction was warranted.
http://www.tmx.com/en/itmreport/tsxv_itmreport.txt
CORRECTION_DATE SYMBOL TRADE_DATE CHANGE_IN_BUY_VOLUME CHANGE_IN_SELL_VOLUME CHANGE_IN_BUY_VALUE CHANGE_IN_SELL_VALUE NUM_BUY_CORRECTIONS NUM_SELL_CORRECTIONS CURRENCY
2014-07-16 PTK 2014-07-09 0 -798500 0.00 -1509165.00 0 1 CAD