X0306 4 2020-08-13 0 0001579214 Emerald Holding, Inc. EEX 0001297368 Onex American Holdings II LLC C/O ONEX CORPORATION 161 BAY STREET, SUITE 4900 TORONTO A6 M5J 2S1 ONTARIO, CANADA 0 0 1 0 0001544361 Onex American Holdings GP LLC C/O ONEX CORPORATION 161 BAY STREET, SUITE 4900 TORONTO A6 M5J 2S1 ONTARIO, CANADA 0 0 1 0 0001297369 Onex US Principals LP C/O ONEX CORPORATION 161 BAY STREET, SUITE 4900 TORONTO A6 M5J 2S1 ONTARIO, CANADA 0 0 1 0 0001695911 Onex Advisor Subco III LLC C/O ONEX CORPORATION 161 BAY STREET, SUITE 4900 TORONTO A6 M5J 2S1 ONTARIO, CANADA 0 0 1 0 0001544357 Onex Advisor Subco LLC C/O ONEX CORPORATION 161 BAY STREET, SUITE 4900 TORONTO Z4 M5J 2S1 CANADA (FEDERAL LEVEL) 0 0 1 0 Series A Convertible Participating Preferred Stock 2020-08-13 4 A 0 22660587 5.60 A Common Stock 36050934 69718919 I See footnotes The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date. Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by OPV Gem Aggregator LP through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein. New PCo II Investments Ltd. and Onex US Principals LP, by virtue of their limited partnership interests in Onex Partners V GP LP, may be deemed to share beneficial ownership of the securities reported herein, as may: (a) 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd.; and (b) Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP. Onex Advisor Subco III LLC by virtue of its limited partnership interests in OPV Gem Aggregator LP, may be deemed to share beneficial ownership of the securities reported herein, as may Onex Advisor Subco LLC, which owns all of the equity of Onex Advisor Subco III LLC. Each of these entities disclaims such beneficial ownership, except to the extent of its pecuniary interest therein. Filing 2 of 2. Due to the limitations of the electronic filing system, Onex Corp, Gerald W. Schwartz, 1597257 Ontario Inc., New PCo II Investments Ltd., Onex Partners Canadian GP Inc., Onex Partners V GP Limited, and OPV Gem Aggregator LP are filing a separate Form 4. Onex US Principals LP, By: Onex American Holdings GP LLC, its General Partner, By: /s/ Matthew Ross, Director 2020-08-17 Onex Advisor Subco LLC, By: /s/ Joel I. Greenberg, Director 2020-08-17 Onex Advisor Subco III LLC, By: /s/ Joel I. Greenberg, Director 2020-08-17 Onex American Holdings II LLC, By: /s/ Matthew Ross, Director 2020-08-17 Onex American Holdings GP LLC, By: /s/ Matthew Ross, Director 2020-08-17