Sonja Siggberg
Sonja Siggberg
Sonja's practice includes capital markets transactions and other transactions involving listed companies as well as corporate governance related matters. She has advised clients in a number of equity and debt capital market transactions (both domestic and international), including IPOs, secondary share issues, complex corporate transactions, public takeovers and bond issues. She is also a trusted advisor in disclosure, insider and corporate governance matters as well as other securities markets related regulatory matters.
She has a lot of experience and her work is of excellent quality.
Capital Markets | Chambers Global, 2023
References
Parties:
Sega Europe Limited and SEGA Corporation (Buyers) Rovio Entertainment Corporation (Target)
Transaction:
Counsel to Sega Europe Limited and SEGA Corporation in the recommended public cash tender offer for all shares and options in Rovio Entertainment Corporation.
Deal value:
Approximately EUR 706 million
Role:
Counsel to Sega Europe Limited and SEGA Corporation
Johan Aalto
Sonja Siggberg
Jon Termonen
Marcus Lehtinen
Sofi Lehtinen
Claes Backström
Samuel Åkerlund
Satu Kokko
Oliver Vesterlund
Viola Karjalainen
Heidi Haanpää
Mikko Huimala
Lauri Putkonen
Annika Grönholm
Panu Siitonen
Hilma Mäkitalo
Wilhelm Sanmark
Ingrid Remmelgas
Karoliina Kaartinen
Monika Parkkinen
Hanna-Mari Mudi
Parties:
Cargotec Corporation, Konecranes Plc
Transaction:
Merger of Cargotec Corporation and Konecranes Plc
Deal value:
Approx. EUR 2.7 billion
Role:
Counsel to Konecranes Plc
Mikko Heinonen
Sonja Siggberg
Peter Forsberg
Mikko Huimala
Markus Bremer
Jenni Heurlin
Johanna Haltia-Tapio
Ingrid Remmelgas
Sini Paajanen
Matias Moberg
Riikka Kuha
Kaisa Himmanen
Agda Vähä-Piikkiö
Linnea Lehtonen
Pauliina Sutinen
Jenni Parviainen
Heikki Vesikansa
Khaled Talayhan
Mattias Friberg
Marc Tevell de Falck
Carolina Lefort Ahokanto
Sarah Ek
Parties
The German State (Buyer), Fortum Oyj (Seller), Uniper SE (Target)
Transaction
Fortum Oyj’s arrangements related to stabilisation of its German subsidiary Uniper SE. The package will ensure multi-billion funding for Uniper, sale of Fortum’s shareholding in Uniper to the German State for approximately EUR 0.5 billion as well as repayment of Fortum’s EUR 4 billion receivables from Uniper and release of EUR 4 billion parent company guarantees.
Deal value
Approx. EUR 4.5 billion
Role
Finnish counsel to Fortum Oyj
Mikko Heinonen
Antti Nyberg (Alanko)
Sonja Siggberg
Klaus Ilmonen
Markus Bremer
Mikko Huimala
Jan Lilius
Mikko Tavast
Matias Moberg
Robert Gordin
Sofi Lehtinen
Parties
Viking Line Abp
Transaction
Counsel to Viking Line Abp on its EUR 51.8 million issue of new shares with pre-emptive rights for existing shareholders.
Deal Value
EUR 51.8 million
Role
Counsel to Viking Line Abp
Sonja Siggberg
Klaus Ilmonen
Marcus Lehtinen
Markus Bremer
Hanna Lindberg
Stefan Stellato
Parties
Altia Plc, Arcus ASA
Transaction
Merger of Altia Plc and Arcus ASA to form Anora Group
Deal value
Preliminary aggregated annual revenue EUR 640 million
Role
Lead counsel to Altia Plc
Sonja Siggberg
Klaus Ilmonen
Anniina Järvinen
Robert Gordin
Kaisa Himmanen
Ebba Almén
Mikko Huimala
Lauri Putkonen
Essi Ellman
Jenni Heurlin
Peter Forsberg
Sarah Ek
Heikki Vesikansa
Harri Vehviläinen
Isabella Kartila
Markus Bremer
Tuomas Toivonen
Sami Niemi
Johanna Haltia-Tapio
Risto Ojakoski
Jenny Lundberg
Josephine Gjerstad Medina
Panu Siitonen
Sarita Schröder
Parties
Virala Acquisition Company Plc, Purmo Group Ltd
Transaction
Virala Acquisition Company Plc's merger with Purmo Group Ltd.
Deal Value
EUR 685 million
Role
Counsel to Virala Acquisition Company Plc
Sonja Siggberg
Anniina Järvinen
Linnea Lehtonen
Tommi Kovero
Sini Paajanen
Tero Pikkarainen
Oliver Vesterlund
Heikki Vesikansa
Stefan Stellato
Isabella Kartila
Antti Nyberg (Alanko)
Pauliina Sutinen
Axel Hård af Segerstad
Wilhelm Sanmark
Mikko Huimala
Jenni Heurlin
Douglas Essehorn
Emma Andersson
Parties
Virala Acquisition Company Plc
Transaction
Hannes Snellman acted as legal counsel to Virala Acquisition Company Plc on its IPO and the listing of its Class C shares on the SPAC segment of the regulated market of Nasdaq Helsinki
Deal Value
EUR 107.5 million
Role
Counsel to Virala Acquisition Company Plc
Sonja Siggberg
Anniina Järvinen
Sofi Lehtinen
Linnea Lehtonen
Tommi Kovero
Annemari Rosi
Aki Salmela
Heikki Vesikansa
Stefan Stellato
Isabella Kartila
Piia Ahonen
Marika Sorsa
Antti Nyberg (Alanko)
Tuomas Toivonen
Johanna Haltia-Tapio
Parties
Vaaka Partners (Seller)
Transaction
Vaaka Partners' sale of their shares held in Musti Group Plc through an accelerated book-building process.
Deal Value
Value not public
Role
Counsel to Vaaka Partners
Sonja Siggberg
Anniina Järvinen
Parties
Ahlstrom-Munksjö Oyj (target), a consortium consisting of Ahlström Capital, Bain Capital Private Equity, Viknum and Belgrano Inversiones (buyer)
Transaction
Recommended public cash tender offer for all shares in Ahlstrom-Munksjö Oyj by Spa Holdings 3 Oy
Deal value
Approximately EUR 2.1 billion
Role
Counsel to the consortium
Johan Aalto
Sonja Siggberg
Mattias Friberg
Antti Kuha
Annemari Rosi
Khaled Talayhan
Robert Gordin
Heikki Vesikansa
Stefan Stellato
Harri Vehviläinen
Helena Lamminen
Laura Sainio
Antti Nyberg (Alanko)
Marc Tevell de Falck
Parties
Local Tapiola Finance Ltd
Transaction
Local Tapiola Finance Ltd's issue of EUR 115,000,000 2-year senior unsecured floating rate notes
Deal Value
Value not public
Role
Counsel to Local Tapiola Finance Ltd
Tuomas Toivonen
Pauliina Sutinen
Sonja Siggberg
Annemari Rosi
Parties
Cramo Plc, Adapteo Plc
Transaction
Cramo’s partial demerger and listing of Adapteo on Nasdaq Stockholm
Deal Value
SEK 5.5 billion
Role
Counsel to Cramo Plc and Adapteo Plc
Sonja Siggberg
Mattias Friberg
Antti Kuha
Elina Toivakainen
Linnea Lehtonen
Khaled Talayhan
Markus Bremer
Janne Veneranta
Stefan Stellato
Parties
Ahlstrom-Munksjö
Transaction
Ahlstrom-Munksjö's EUR 150 million rights issue to partly finance the acquisition of Expera Specialty Solutions
Deal Value
EUR 150 million
Role
Counsel to Ahlstrom-Munksjö
Sonja Siggberg
Anniina Järvinen
Annemari Rosi
Elina Toivakainen
Parties
LocalTapiola Mutual Life Insurance Company
Transaction
LocalTapiola Mutual Life Insurance Company’s issue of EUR 100 million capital notes
Deal Value
Value 100 million
Role
Counsel to LocalTapiola Mutual Life Insurance Company
Markus Bremer
Sonja Siggberg
Janne Veneranta
Annemari Rosi
Valerie Wårvik
Parties
Ahlstrom-Munksjö (Buyer), Expera Specialty Solutions (Target), KPS Capital Partners (Seller)
Transaction
Ahlstrom-Munksjö’s acquisition of Expera Specialty Solutions, a U.S.-based specialty paper producer
Deal Value
USD 615 million
Role
Counsel to Ahlstrom-Munksjö
Sonja Siggberg
Fredrik Olsson
Johan Aalto
Antti Kuha
Anniina Järvinen
Albert Danielsson
Agda Vähä-Piikkiö
Carolina Wahlby
Parties
YIT Oyj
Transaction
Issue of EUR 100 million and EUR 150 million senior notes by YIT Oyj
Deal Value
EUR 250 million
Role
Counsel to YIT Oyj
Markus Bremer
Janne Veneranta
Sonja Siggberg
Annemari Rosi
Parties
The State of Finland (seller), Altia Plc (target)
Transaction
Altia Plc’s IPO and listing on the official list of Nasdaq Helsinki
Deal Value
Over EUR 270 million
Role
Counsel to Altia Plc
Sonja Siggberg
Markus Bremer
Anniina Järvinen
Annemari Rosi
Matias Moberg
Parties
Suomen Terveystalo Oy
Transaction
Terveystalo’s IPO and listing on the Nasdaq Helsinki stock exchange
Deal Value
The offering by the company and its shareholders was over EUR 870 million and the Company’s market value was over EUR 1.2 billion
Role
Counsel to Terveystalo
Klaus Ilmonen
Sten Olsson
Sonja Siggberg
Anniina Järvinen
Antti Kuha
Ella Hiltunen
Elina Toivakainen
Markus Bremer
Matias Moberg
Annemari Rosi
Parties
Lemminkäinen Corporation and YIT Corporation
Transaction
The combination of Lemminkäinen Corporation and YIT Corporation through a statutory merger
Deal Value
EUR 771 million
Role
Counsel to Lemminkäinen
Sonja Siggberg
Mikko Heinonen
Markus Bremer
Heikki Vesikansa
Johanna Haltia-Tapio
Elina Toivakainen
Laura Tavakka
Heikki Majamaa
Harri Vehviläinen
Jenni Heurlin
Stefan Stellato
Parties
Ahlstrom Oyj, Munksjö Oyj
Transaction
The combination of Ahlstrom and Munksjö through a merger
Deal Value
Approx. EUR 1,2 billion
Role
Lead counsel to Ahlstrom
Johan Aalto
Sonja Siggberg
Antti Kuha
Heikki Vesikansa
Janne Veneranta
Johanna Haltia-Tapio
Annemari Rosi
Stefan Stellato
Parties
Sampo plc (Buyer), Topdanmark A/S (Target)
Transaction
Sampo plc’s mandatory public cash offer for all outstanding shares in Topdanmark A/S
Deal Value
Value not public
Role
Counsel to Sampo plc
Johan Aalto
Sonja Siggberg
Parties
Acorda Therapeutics (Bidder), Biotie Therapies (Target)
Transaction
Acorda Therapeutics' public tender offer of the shares and other securities in Biotie Therapies
Deal Value
USD 363 million
Role
Counsel to Biotie Therapies Corp.
Mikko Heinonen
Klaus Ilmonen
Elina Toivakainen
Heikki Vesikansa
Anna-Maria Tamminen
Sonja Siggberg
Parties
Faron Pharmaceuticals Ltd
Transaction
Faron Pharmaceuticals Ltd's IPO and listing on the AIM market of the London Stock Exchange as well as the preceding fundraising of approx. GBP 10 million
Deal Value
Approx. GBP 10 million
Role
Counsel to Faron Pharmaceuticals Ltd
Sonja Siggberg
Heikki Vesikansa
Anniina Järvinen
Parties
Biotie Therapies Corp.
Transaction
Public offering and listing of Biotie Therapies Corp.’s shares on the NASDAQ Global Select Market New York
Deal Value
Approx. EUR 83 million
Role
Counsel to Biotie Therapies Corp.
Sonja Siggberg
Mikko Heinonen
Antti Kuha
Parties
Asiakastieto Group Plc
Transaction
Asiakastieto Group Plc’s IPO and listing on the Helsinki Stock Exchange
Deal Value
Approx. EUR 170 million
Role
Counsel to Asiakastieto Group Plc
Klaus Ilmonen
Sonja Siggberg
Heikki Vesikansa
Anniina Järvinen
Rankings
- "She has a lot of experience and her work is of excellent quality.", Capital Markets, Chambers Global 2023
- '"She is technically good," remark interviewees.', Capital Markets, Chambers Global 2022
- Ranked as a Highly regarded lawyer in Capital Markets and M&A in the 2021 edition of IFLR1000
- 'Sonja Siggberg "is very proactive, hands-on and always makes me feel like I receive very practical advice which allows me to move forward," says a client. She is well known for her ECM practice, being particularly active in listings.', Capital Markets, Chambers Global and Chambers Europe, 2021
- Ranked in Capital Markets in Chambers Europe 2020
- 'One client highlights her technical expertise in the capital markets area.', Chambers Europe, 2019
- 'Sources say that she is "a skilled capital markets lawyer," adding: "She is proactive and has a good, client-friendly approach."', Chambers Europe, 2018
- Ranked in Capital Markets in the 2017 edition of Legal 500
- Ranked as an "outstanding up and comer" in the 2017 edition (Finland: Capital Markets) of Chambers Europe
- Described as "a very dedicated and ambitious lawyer with a deep knowledge of company law." Sources also say that she is "a good listener.", Chambers Europe, 2017
- Ranked among the Rising stars in the 2017-2020 editions (Finland: M&A) of IFLR1000
Memberships and Positions of Trust
- Member of the Finnish Bar Association, 2005
Education and Professional Background
- Partner, Hannes Snellman, 2014 -
- Managing Associate, Hannes Snellman, 2012 – 2013
- Senior Associate, Hannes Snellman, 2005 – 2011
- Visiting lawyer, Mannheimer Swartling, Berlin, 2003
- Associate, Hannes Snellman, 2001 – 2005
- Master of Laws, University of Helsinki, 2001
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