Transaction Details

Footnotes

The shares of common stock were sold in an unregistered block sale transaction pursuant to Rule 144 under the Securities Act of 1933, as amended, at a price per share of $28.60. | Each of the reporting persons (other than the direct holder) disclaims beneficial ownership of these securities, except to the extent of its or his pecuniary interest therein, and this Form shall not be construed as an admission that any such reporting person is the beneficial owner of any such securities. | The securities reported are held directly by AI Droplet Holdings LLC ("Holdings") and and may be deemed to be beneficially owned by Access Industries Management, LLC ("AIM") and Len Blavatnik because (i) AIM is the sole manager of Holdings and (ii) Len Blavatnik controls AIM and a majority of the outstanding voting interests in Holdings. | The securities reported are held directly by AI Droplet Subsidiary LLC ("Subsidiary") and may be deemed to be beneficially owned by AIM, Holdings and Len Blavatnik because (i) AIM is the sole manager of Subsidiary and Holdings, (ii) Holdings owns all of the equity interests in Subsidiary and (iii) Len Blavatnik controls AIM and a majority of the outstanding voting interests in Holdings. | The securities reported are held directly by AI Droplet Sharing LLC ("Sharing") and may be deemed to be beneficially owned by AIM, Access Industries Holdings LLC ("AIH") and Len Blavatnik because (i) AIM is the sole manager of Sharing and AIH, (ii) AIH controls all of the outstanding voting interests in Sharing and (iii) Len Blavatnik controls AIM and a majority of the outstanding voting interests in AIH.