I doubt it's worth anywhere near a million pounds, but the article does say that the buyer immediately resold it to a collector, so I suspect it could have been worth considerably more than the $16 000 he got.
Based on the BBC article in the parent comment, the buyer wasn’t actually a buyer / reseller but just a middleman representing the collector. And he said that though he wasn’t privy to the price paid, it wasn’t $16K but was also not as much as $1M. He also said no meteorite is worth $1M.
