I agree with the others that this is a necessary step to the merger/ acquisition, but the filing yesterday with the SEC is a Form Pre 14c. To my understanding, it basically just lets us know the action to be taken and that there will not be a proxy.
It doesn't say anywhere on the text of the document that's it's a pre 14c, but that's how it was filed.
No worries, it's just one more step to the completion of the merger. As Titan stated, some weak hands may sell tomorrow but this is our chance (IMO) to fatten the pot at the end of the rainbow.