This would be easier to explain if TAG Heuer had dropped the "TAG" portion when they were sold to LVMH, but the answer is that it is TAG (the investment vehicle owned by Mansour Ojjeh) that owns shares in McLaren, not TAG Heuer (the watchmaker formerly owned by TAG, now owned by LVMH, that formerly sponsored McLaren and now sponsors Red Bull). I hope that's clear because after writing that sentence I am no longer certain of my own name.