largest holder of CRH increases position in Q4Nantahala Capital Management increased their position to 6.5MM shares from 6.1MM shares in Q4, representing ~9% of the outstanding shares.
if they increase over 10% then they will become an Insider and will need to report their activity within 2 business days, rather than quarterly.
you have to bet that a holder just below Insider status is pushing the company to do things. we'll see if CRH is in play once Q4 is released...
https://www.sec.gov/Archives/edgar/data/1461119/000114420419007805/tv513687_sc13g.htm