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                THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
                 5:00 P.M. EASTERN TIME ON NOVEMBER 28, 2022, UNLESS THE OFFER IS EXTENDED OR EARLIER TERMINATED. |  |  | 
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                Fiscal Year Ended June 30, 2021 
               |  |  | 
                High 
               |  |  | 
                Low 
               |  | ||||||
| 
                First Quarter 
               |  |  |  | $ | 6.51 |  |  |  |  | $ | 4.32 |  |  | 
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                Second Quarter 
               |  |  |  | $ | 5.76 |  |  |  |  | $ | 3.88 |  |  | 
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                Third Quarter 
               |  |  |  | $ | 9.67 |  |  |  |  | $ | 3.82 |  |  | 
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                Fourth Quarter 
               |  |  |  | $ | 5.38 |  |  |  |  | $ | 3.53 |  |  | 
| 
                Fiscal Year Ended June 30, 2022 
               |  |  | 
                High 
               |  |  | 
                Low 
               |  | ||||||
| 
                First Quarter 
               |  |  |  | $ | 4.15 |  |  |  |  | $ | 3.00 |  |  | 
| 
                Second Quarter 
               |  |  |  | $ | 3.18 |  |  |  |  | $ | 1.84 |  |  | 
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                Third Quarter 
               |  |  |  | $ | 2.83 |  |  |  |  | $ | 1.05 |  |  | 
| 
                Fourth Quarter 
               |  |  |  | $ | 1.13 |  |  |  |  | $ | 0.58 |  |  | 
| 
                Current Fiscal Year 
               |  |  | 
                High 
               |  |  | 
                Low 
               |  | ||||||
| 
                First Quarter 
               |  |  |  | $ | 0.90 |  |  |  |  | $ | 0.27 |  |  | 
| 
                Second Quarter (through October 25, 2022) 
               |  |  |  | $ | 0.41 |  |  |  |  | $ | 0.23 |  |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
| David Fellows President and Director Citizenship: USA |  |  | 
                Mr. Fellows is the President and a Director of Alliance Acquisition Sub, Inc. Mr. Fellows serves as a Director of Jaguar Gene Therapy, LLC (since 2020) and Axovia Therapeutics (since 2020). Mr. Fellows is also Chairman and a Director of Oxular Limited (since 2017) and Terns Pharmaceuticals, Inc. (since 2020). Mr. Fellows was previously Chief Executive Officer of Nightstar Therapeutics Limited (between 2015 and 2019) and a Director (between 2014 and 2019) and Chairman and Director of Arctos Optogenetics (between 2020 and 2021).
               
                Mr. Fellows was a Director of Gyroscope Therapeutics Holdings PLC (between 2020 and 2021) and was previously Vice President of Johnson & Johnson’s Vision Care Franchise and held leadership positions at Allergan, Inc. for twenty-five (25) years in a number of capacities, including Regional President, Corporate Vice President, and Senior Vice President across North America, Europe and Asia.
               
                Mr. Fellows holds a B.A. in Psychology from Butler University. 
               |  | 
| Dr. Christopher Hollowood Treasurer, Secretary and Director Citizenship: United Kingdom |  |  | 
                Dr. Hollowood is the Treasurer and Secretary and a Director of Alliance Acquisition Sub, Inc.
               
                Dr. Hollowood serves as Chief Investment Officer of Syncona. Dr. Hollowood joined Syncona in 2012 and holds various Director positions at affiliates of Syncona Limited.
               
                Dr. Hollowood is also a Director of Alliance Holdco Limited.
               
                Dr. Hollowood serves as Chairman and Director of Freeline Therapeutics Holdings PLC (since 2020 and held Director positions in the Freeline group between 2015 and 2021), Swanbio Therapeutics Limited (since 2018) and Purespring Therapeutics Limited (since 2020). Dr. Hollowood is also a Director of Forcefield Therapeutics (since 2020).
               
                Dr. Hollowood was previously the Chairman and Director of Nightstarx Limited (between 2013 and 2017) and Gyroscope Therapeutics Holdings PLC (between 2021 and 2022 and held Director positions in the Gyroscope group between 2016 and 2021).
               
                Dr. Hollowood was previously a partner of Apposite Capital LLP, a venture and growth capital healthcare investment company. Before Apposite, Dr. Hollowood had roles with Bioscience Managers Limited, Neptune Investment Management Limited and in the pharmaceutical industry.
               
                Dr. Hollowood holds a degree in Natural Sciences and a PhD in Organic Chemistry, both from the University of Cambridge. 
               |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
| Ashwin Datt Assistant Secretary and Director Citizenship: USA |  |  | 
                Mr. Datt is the Assistant Secretary and Director of Alliance Acquisition Sub, Inc.
               
                Mr. Datt serves as Chief Executive Officer of Carousel Therapeutics, LLC (since 2021).
               
                He was previously Chief People Officer (in 2019) and EVP, Corporate Development (between 2019 and 2021) for Gyroscope Therapeutics and Advisor to the CEO (between 2018 and 2019) and Chief People Officer (between 2017 and 2018) for Vitrisa Therapeutics, Inc.
               
                Mr. Datt has held many other senior positions for various biotechnology companies for the past twenty-five (25) years, including Genentech and Amgen.
               
                Mr. Datt has a BA in Psychology from the University of California, Los Angeles.
               |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
| 
                Dr. Christopher Hollowood  Director Citizenship: United Kingdom |  |  | See description above under Alliance Acquisition Sub, Inc. |  | 
| Dr. Elisa Petris Director Citizenship: Italy |  |  | 
                Dr. Petris is a Director of Alliance Holdco Limited. Dr. Petris is a Lead Partner at Syncona. Dr. Petris joined Syncona Limited in 2013.
               
                Since 2019, Dr. Petris has served as a Director of Quell Therapeutics Limited.
               
                Between 2018 and 2019 Dr. Petris served as a Director of Blue Earth Diagnostics Limited and Achilles Therapeutics UK Limited.
               
                Dr. Petris was previously a Senior Associate at Michel Dyens & Co. working on transactions covering the healthcare space, and a member of the Life Science team at L.E.K. Consulting based in London.
               
                Dr. Petris has a PhD in Molecular Biology from Imperial College and an MBA from London Business School.
               |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
| Robert Hutchinson Director Citizenship: United Kingdom |  |  | 
                Mr. Hutchinson is a Director of Syncona Portfolio Limited, Syncona Holdings Limited and Syncona Limited (each since 2017). Mr. Hutchinson is also a Director of Syncona GP Limited (since 2017).
               
                Mr. Hutchinson has over thirty (30) years’ experience in the financial sector as a Chartered Accountant. Mr. Hutchinson qualified in 1990 and spent twenty-eight (28) years with KPMG across various roles. Mr. Hutchinson retired from practice in 2014 and is a Fellow of the Institute of Chartered Accountants in England and Wales.
               
                Mr. Hutchinson served as President of the Guernsey Society of Chartered and Certified Accountants (between 2007 and 2009).
               
                Mr. Hutchinson is also a Non-Executive Director of Ravenscroft Holdings (since 2018) and Non-Executive Director of Pantheon group entities based in Guernsey (since 2022). 
               |  | 
| Nicholas Moss Director Citizenship: United Kingdom |  |  | 
                Mr. Moss is a Director of Syncona Portfolio Limited and Syncona Holdings Limited (since 2016). Mr. Moss is also a Director of Syncona GP Limited (since 2012) and was previously a Director of Syncona Limited between 2016 and 2021..
               
                Mr. Moss is an English qualified chartered accountant (FCA) and has nearly thirty (30) years’ experience in the financial services sector.
               
                Mr. Moss was a founder and Director of Virtus Trust (between 2005 and 2020). Prior to Virtus Trust, Mr. Moss was a Managing Director at Rothschild Trust (between 1989 and 2005).
               
                Mr. Moss holds a number of Non-Executive Director positions for private investment holding and property holding companies in the Channel Islands.
               |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
| Dr. Martin Murphy Chair, Chief Executive Officer and Director Citizenship: United Kingdom |  |  | 
                Dr. Murphy serves as Chief Executive Officer and Chair of Syncona Investment. Dr. Murphy co-founded Syncona alongside The Wellcome Trust in 2012. Dr. Murphy holds various Director positions in the Syncona group.
               
                Dr. Murphy is Chairman and Director of Quell Therapeutics Limited (since 2019) and Anaveon AG (since 2019) and is a 
               |  | 
| Name, Position Country of Citizenship |  |  | 
                Present Principal Occupation or Employment; Material Positions
                 Held During the Past Five (5) Years; Certain Other Information |  | 
|  |  |  | 
                Director of Autolus Therapeutics PLC (since 2018 and held Director positions in the Autolus group between 2014 and 2018), Resolution Therapeutics Limited (since 2020), Neogene Therapeutics, Inc. (since 2020) and Clade Therapeutics, Inc. (since 2021).
               
                Dr. Murphy was previously Chair and Director of Blue Earth Diagnostics Limited (from 2013 to 2019) and Director of Achilles Therapeutics PLC (between 2020 and 2021 and held Director positions in the Achilles group between 2016 and 2020).
               
                Previously, Dr. Murphy was a partner at MVM Life Science Partners LLP (between 2003 and 2012). Dr. Murphy has also held roles with 3i Group plc and McKinsey & Company.
               
                Dr. Murphy has a PhD in Biochemistry from the University of Cambridge. 
               |  | 
| Dr. Christopher Hollowood Chief Investment Officer and Director Citizenship: United Kingdom |  |  | 
                See description above under Alliance Acquisition Sub, Inc. 
               |  | 
| Mr. Rolf Soderstrom Chief Financial Officer and Director Citizenship: United Kingdom |  |  | 
                Mr. Soderstrom is the Chief Financial Officer and a Director of Syncona Investment Management Limited (since 2021) and holds various Director positions in the Syncona group.
               
                Mr. Soderstrom is a Non-executive Director of Sosei Heptares (since 2020) and Biopharma Credit PLC (since 2020).
               
                Mr. Soderstrom was previously CFO of BTG plc (between 2007 and 2018 and held various Director positions in the BTG group during that time) and was previously a Non-Executive Director of Ergomed PLC (between 2019 and 2021).
               
                Prior to this, Mr. Soderstrom was CFO of Protherics plc, and worked in senior finance roles in Cobham plc and Cable and Wireless plc after qualifying as a chartered accountant with PwC.
               
                Mr. Soderstrom has a degree in history from University College London.
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