For example, it appears that both LGIM and Blackrock backed the Melrose bid:
Neither manager has made any public statement as far as I am aware, something I increasingly think is going to have to change in future bid situations. Note the claim that LGIM didn't get back to GKN - I would a bit surprised if this is true. Incidentally, I don't think anyone "voted" their shares, they accepted the bid.
Blackrock's position is obviously also of interest given that this was a big call since Larry Fink's letter to corporates saying don't just think about the money. The other major stakeholder group in GKN - employees - was opposed to this deal along with management. If Blackrock still approved the bid, this gives us an idea of how that guidance may play out in practice.
The other really interesting bit in the article is the suggestion that Melrose was scrabbling around at the last minute to make sure it got over the 50%+ acceptance level:
Finally, it's worth noting the total disclosed short positions in Melrose in the FCA list have gone back UP - over 13%, and some new names in the list (although they could have been sitting under the 0.5% level reported by the FCA). Note several of the positions date from 29th or 30th March - the day of the bid and the day after. Melrose's share price actually went up slightly post the bid result. Anyway, I'll keep an eye on it.