You see 1-share buys all the time. There was a string of them in ARB yesterday. Means nothing. BTW - lots of 2-share buys in ARB this morning. What's that about?!
I'm expecting the usual AIM response: good news RNS on a little-known stock; modest rise in sp; then a day or two later, it catches on and the herd arrives. Let's see where we are at close of week.