The takeover tussle is the first major hostile bid since Melrose bought GKN last year against the wishes of the former board.
Le May said hostile raids were “anachronistic”.
He said: “It’s the way I used to behave in the eighties. I don’t believe there’s any merit in going back to the ‘he said, she said’ public emotional thing. This is about what’s the right thing to do for our shareholders.”
Provident was first told of a takeover approach from NSF on Friday.
A voicemail was left on the mobile phone of chairman Patrick Snowball at 6:45am, 15 minutes before NSF went public with the offer.