13G Filing: Highbridge Capital Management and Mosaic Acquisition Corp. (MOSC.UN)

If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J), please

specify the type of institution: _______________________________________

(a)       Amount
beneficially owned:

As of the date hereof, (i) 1992 MSF International Ltd. may be deemed to beneficially own 2,850,000
Class A Ordinary Shares and (ii) Highbridge Capital Management, LLC, as the trading manager of 1992 MSF International Ltd., may
be deemed to be the beneficial owner of 2,850,000 Class A Ordinary Shares held by 1992 MSF International Ltd..

(b)       Percent
of class:

The percentages used herein and in the rest of this Schedule 13G are calculated based upon the
34,500,000 Class A Ordinary Shares reported to be outstanding in the Issuer’s Prospectus filed pursuant to Rule 424(b)(4), filed
with the Securities and Exchange Commission on October 19, 2017 after giving effect to the completion of the offering and the underwriter’s
exercise of their over-allotment option, as described therein and in the Company’s Current Report on Form 8-K filed with the Securities
and Exchange Commission on October 24, 2017. Therefore, as of the date hereof based on the outstanding Class A Ordinary Shares,
(i) 1992 MSF International Ltd. may be deemed to beneficially own approximately 8.26% of the outstanding Class A Ordinary Shares
and (ii) Highbridge Capital Management, LLC may be deemed to beneficially own approximately 8.26% of the outstanding Class A Ordinary
Shares.

The
foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership
of the shares of Class A Ordinary Shares held by 1992 MSF International Ltd.

(c)        Number
of shares as to which such person has:

 (i)        Sole
power to vote or to direct the vote

   0