I haven't, what lesson have you learned? I must be missing something, I bought a small truckload of shares and they're about 20% up, after the Macquarie sell-out, plus a dividend not so long ago. TBH I not really all that fussed about the share price in the short term, these are a long play for me.
I never feared the Macquarie sell down/out and still don't, I'm glad they're gone though and I don't give a fig how long these 'loose' shares circulate the market. It might be that they actually mainly went to strong hands who can also see a long term bright future for OCA at an excellent entry point.
GLTAH