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Securities Sought
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| | All of the outstanding shares of common stock, par value of $0.0001 per share of the Company (the “Shares”). | |
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Price Offered Per Share
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| | $8.60, in cash, without interest, subject to any applicable withholding of taxes. | |
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Scheduled Expiration of Offer
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| | One minute following 11:59 p.m., Eastern Time, on September 15, 2025, unless the Offer is extended or earlier terminated as permitted by the Merger Agreement (such time or such subsequent time to which the expiration of the Offer is extended in accordance with the terms of the Merger Agreement, the “Expiration Time”). | |
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Purchaser
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| | Yosemite Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent. | |
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High
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Low
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2023 | | | | | | | | | | | | | |
First Quarter
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| | | $ | 5.98 | | | | | $ | 2.70 | | |
Second Quarter
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| | | $ | 10.95 | | | | | $ | 4.93 | | |
Third Quarter
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| | | $ | 7.47 | | | | | $ | 4.60 | | |
Fourth Quarter
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| | | $ | 7.62 | | | | | $ | 4.69 | | |
2024 | | | | | | | | | | | | | |
First Quarter
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| | | $ | 20.90 | | | | | $ | 6.48 | | |
Second Quarter
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| | | $ | 17.78 | | | | | $ | 11.15 | | |
Third Quarter
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| | | $ | 15.70 | | | | | $ | 8.41 | | |
Fourth Quarter
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| | | $ | 16.11 | | | | | $ | 7.45 | | |
2025 | | | | | | | | | | | | | |
First Quarter
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| | | $ | 8.62 | | | | | $ | 4.25 | | |
Second Quarter
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| | | $ | 5.47 | | | | | $ | 3.55 | | |
Third Quarter (through August 15)
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| | | $ | 8.54 | | | | | $ | 4.10 | | |
Name, Position and Country of
Citizenship |
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Present Principal Occupation or Employment;
Material Positions Held During the Past Five Years |
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Vanessa Wolfeler,* President (France and United States of America) | | | Vanessa Wolfeler has served as President and member of the board of Parent from December 9, 2024, to present. She currently serves as Chief Executive Officer of SERB Pharmaceuticals. She previously served in various roles at Sanofi SA, including as Head of US Respiratory and Gastrointestinal franchise from 2022 to 2024 and Global Franchise Head for Rare Disease from 2019 to 2022. | |
Robert Duffield,*
Secretary (United States of America) |
| | Robert Duffield has served as Secretary of Parent from July 31, 2025 to present. He currently serves as Vice President, Legal & Compliance for Parent. He served as Deputy General Counsel and Assistant Corporate Secretary of Optinose, Inc. from October, 2019 until January, 2025. | |
Daniel Dolan,*
Treasurer (United States of America) |
| | Daniel Dolan has served as Treasurer of Parent from July 31, 2025 to present. He currently serves as Vice President, Finance, of SERB Pharmaceuticals. He previously served as Vice President of Finance at Radius Health, Inc. from 2017 to 2021, Chief Financial Officer of Nabriva Therapeutics plc from 2021 to 2024 and Head of Financial Planning and Analysis at Incyte Corporation from 2024 to 2025. | |
Name, Position and Country of
Citizenship |
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Present Principal Occupation or Employment;
Material Positions Held During the Past Five Years |
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Vanessa Wolfeler,*
President (France and United States of America) |
| | Vanessa Wolfeler has served as President and member of the board of Parent from December 9, 2024, to present. She currently serves as Chief Executive Officer of SERB Pharmaceuticals. She previously served in various roles at Sanofi SA, including as Head of US Respiratory and Gastrointestinal franchise from 2022 to 2024 and Global Franchise Head for Rare Disease from 2019 to 2022. | |
Thomas Kolaras,*
Vice President (United States of America) |
| | Thomas Kolaras served as Secretary and member of the board of Parent from December 9, 2024 to July 31, 2025. He currently serves as Executive VP, Chief Commercial Officer US, of SERB Pharmaceuticals. He previously served in various roles at Endo Pharmaceuticals, including as Senior Vice President & General Manager for Medical Therapeutics from 2020 to 2022. | |
Robert Duffield,*
Secretary (United States of America) |
| | Robert Duffield has served as Secretary of Parent from July 31, 2025 to present. He currently serves as Vice President, Legal & Compliance for Parent. He served as Deputy General Counsel and Assistant Corporate Secretary of Optinose, Inc. from October, 2019 until January, 2025. | |
Daniel Dolan,*
Treasurer (United States of America) |
| | Daniel Dolan has served as Treasurer of Parent from July 31, 2025 to present. He currently serves as Vice President, Finance, of SERB Pharmaceuticals. He previously served as Vice President of Finance at Radius Health, Inc. from 2017 to 2021, Chief Financial Officer of Nabriva Therapeutics plc from 2021 to 2024 and Head of Financial Planning and Analysis at Incyte Corporation from 2024 to 2025. | |
Name, Position and Country of
Citizenship |
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Present Principal Occupation or Employment;
Material Positions Held During the Past Five Years |
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Lionel Giacomotto,*
Managing Partner (France) |
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Lionel Giacomotto has served as Managing Partner of Watling Street Capital Partners LLP since 2011. Lionel joined Charterhouse in 1993. Since early 2015, he has been responsible for Charterhouse’s strategy and for overseeing the origination and execution of Charterhouse’s Funds’ investments. Lionel chairs the investment committee.
During Lionel’s early years at Charterhouse, he was centrally involved in a number of UK investments.
From the end of the 1990s, Lionel’s focus was on building upon Charterhouse’s longstanding presence in France, successfully expanding the Firm’s investment activity and reputation there. Lionel has been instrumental in overseeing the expansion of the Firm’s Continental European activities, resulting in recent investments in Germany, Italy and Benelux.
Born and educated in France, Lionel is a Paris Dauphine University graduate.
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Name, Position and Country of
Citizenship |
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Present Principal Occupation or Employment;
Material Positions Held During the Past Five Years |
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Dame Alison Rose,*
Senior Partner (United Kingdom) |
| | Dame Alison Rose has served as Senior Partner of Watling Street Capital Partners LLP since 2024. Alison previously served as CEO of NatWest Group, a major retail and commercial bank, from 2019 until 2023. During her tenure at NatWest, she was invited by the UK Government to lead a review of the barriers to women starting business and authored The Rose Review in March 2019. This led to the establishment of the UK’s Investing In Women Code which now has over 200 signatories. This ecosystem wide effort has led to the UK tripling the number of women business start-ups from 50,000 per year in 2019 to 150,000 in 2022. Alison chaired the Rose Review board and the review was updated annually to detail good progress on female entrepreneurship. This initiative was introduced to We-Fi by the Financial Alliance For Women and is currently being rolled out in 28 countries. | |
Vincent Pautet,*
Partner (France) |
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Vincent Pautet has served as Partner of Watling Street Capital Partners LLP since 2011. Vincent joined Charterhouse in 2005. He is a Partner in the Deal Team and sits on the Investment Committee. During Vincent’s time at Charterhouse he has been involved with numerous transactions including Cegelec, Comexposium, Cooper, Epolia, Elior, Nuova Castelli, Sagemcom, Siaci Saint Honoré, Tarsus, TDF and Webhelp.
He was previously with CDC Equity Capital for five years and prior to this at BNP Paribas in the London M&A Team.
Vincent is a graduate of HEC Paris Business School and holds a degree in International Taxation from Paris Sorbonne University. He is fluent in English and French.
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Pierre de Sarrau,*
Partner (France) |
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Pierre has served as Partner of Watling Street Capital Partners LLP since 2011. Pierre joined Charterhouse in 2011. He is a Partner in the Deal Team. During Pierre’s time at Charterhouse, he has been involved with numerous transactions including Mirion Technologies, Cooper, Elior, Funecap, Novetude, SERB and Webhelp.
He previously spent two years with Terra Firma Capital Partners where he worked on private equity transactions across a variety of sectors. Prior to this, Pierre worked in the Investment Banking Division at Citigroup, focusing on private equity transactions and financing mandates.
Pierre graduated from HEC Paris Business School and holds a degree in Mathematics from King’s College London. He is fluent in English and French.
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If delivering Shares by mail:
Equiniti Trust Company, LLC
Operations Center Attn: Reorganization Department P.O. Box 525 Ridgefield Park, New Jersey 07660 |
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If delivering Shares by hand, express mail,
courier or any other expedited mail service:
Equiniti Trust Company, LLC
55 Challenger Road Suite # 200 Ridgefield Park, New Jersey 07660 Attn: Reorganization Department |
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