People

Mikko Heinonen

Partner

Mikko's practice focuses on various forms of corporate transactions, mergers and acquisitions, finance advisory, and securities regulation. He frequently provides advice regarding transactional matters, governance and financing issues to corporations, financial sponsors, and their boards. Mikko has also advised many industrial and technology companies in equity financing and restructuring situations and has considerable experience in public takeovers, mergers and cross-border transactions, including some of the largest transactions in the Nordic market.

Mikko is a frequent speaker at university lectures and seminars. Mikko is also entrusted with non-executive board memberships in various companies and charitable organisations. He currently serves as the chairman of the Turku University Foundation.

Mikko is also qualified to practice in the State of New York.

Mikko Heinonen is a very experienced partner with the ability to make decisions on tough questions and guide customers.

Corporate / M&A | Chambers Global, 2024


References

Parties

YIT Oyj (Seller), Renta Oy (Buyer), YIT Kalusto Oy (Target)

Transaction

Sale of fleet and equipment business and related arrangements

Deal Value

EUR 37 million

Role

Counsel to YIT

 

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Sofia Saarelainen

Sofia Saarelainen

Associate
sofia.saarelainen@hannessnellman.com
Tero Pikkarainen

Tero Pikkarainen

Senior Associate
tero.pikkarainen@hannessnellman.com
Viola Karjalainen

Viola Karjalainen

Associate
viola.karjalainen@hannessnellman.com
Vivi Jaatinen

Vivi Jaatinen

Legal Assistant
vivi.jaatinen@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
 Annika  Grönholm

Annika Grönholm

Associate
annika.gronholm@hannessnellman.com
Essi Ellman

Essi Ellman

Associate
essi.ellman@hannessnellman.com
Matti Lajunen

Matti Lajunen

Partner
matti.lajunen@hannessnellman.com
Lisa Tihlman

Lisa Tihlman

Associate
lisa.tihlman@hannessnellman.com
Marika Sorsa

Marika Sorsa

Counsel
marika.sorsa@hannessnellman.com
Anton Falkenberg

Anton Falkenberg

Counsel
anton.falkenberg@hannessnellman.com
Sofia Ropo

Sofia Ropo

Senior Associate
sofia.ropo@hannessnellman.com

Parties:

Kemppi Group Oy, Kempower Corporation

Transaction:

Counsel to Kemppi Group Oy, the majority owner of Kempower Corporation, in the placing of 3.4 million shares in Kempower Corporation

Deal value:

EUR 102 million

Role:

Counsel to Kemppi Group Oy

Sonja Siggberg

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Tommi Kovero

Tommi Kovero

Senior Associate
tommi.kovero@hannessnellman.com
Sofi Lehtinen

Sofi Lehtinen

Associate
sofi.lehtinen@hannessnellman.com
Tobias Palmgren

Tobias Palmgren

Associate
tobias.palmgren@hannessnellman.com

Parties:

Uponor Corporation (target), Georg Fischer Ltd (buyer)

Transaction: 

Counsel to Uponor Corporation in the recommended public cash tender offer by Georg Fischer Ltd to purchase all of the issued and outstanding shares of Uponor Corporation. 

Value:

EUR 2.1 billion

Role:

Counsel to Uponor Corporation

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Sonja Siggberg

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Aki Salmela

Aki Salmela

Associate
aki.salmela@hannessnellman.com
Jon Termonen

Jon Termonen

Managing Associate
jon.termonen@hannessnellman.com
Viola Karjalainen

Viola Karjalainen

Associate
viola.karjalainen@hannessnellman.com
Roope Sevón

Roope Sevón

Associate
roope.sevon@hannessnellman.com
Wilma Montonen

Wilma Montonen

Associate
wilma.montonen@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
Päivi Tammilehto

Päivi Tammilehto

Counsel
paivi.tammilehto@hannessnellman.com
Helena Lamminen

Helena Lamminen

Senior Associate
helena.lamminen@hannessnellman.com
Essi Ellman

Essi Ellman

Associate
essi.ellman@hannessnellman.com
Sofia Saarelainen

Sofia Saarelainen

Associate
sofia.saarelainen@hannessnellman.com
 Annika  Grönholm

Annika Grönholm

Associate
annika.gronholm@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Jenni Parviainen

Jenni Parviainen

Managing Associate
jenni.parviainen@hannessnellman.com
Isabella Kartila

Isabella Kartila

Senior Associate
isabella.kartila@hannessnellman.com
Melisa Göllü

Melisa Göllü

Legal Assistant
melisa.gollu@hannessnellman.com
Janika Vallila

Janika Vallila

Executive Assistant
janika.vallila@hannessnellman.com
Monika Parkkinen

Monika Parkkinen

Legal Assistant
monika.parkkinen@hannessnellman.com
Anni Nohteri

Anni Nohteri

Legal Assistant
anni.nohteri@hannessnellman.com

Hannes Snellman acted as counsel to YIT Oyj in relation to its EUR 140 million term loan facility agreement with OP Corporate Bank, SEB, and Swedbank.

Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Janne Veneranta

Janne Veneranta

Managing Associate
janne.veneranta@hannessnellman.com
Elisa Viiri

Elisa Viiri

Associate
elisa.viiri@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Robert Gordin

Robert Gordin

Senior Associate
robert.gordin@hannessnellman.com

Parties:

Otava Ltd, Alma Media Corporation

Transaction:

Otava Ltd's mandatory public tender offer for Alma Media Corporation

Deal value: 

EUR 523.7 million

Role:

Counsel to Otava Ltd

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Anniina Järvinen

Anniina Järvinen

Partner
anniina.jarvinen@hannessnellman.com
Tommi Kovero

Tommi Kovero

Senior Associate
tommi.kovero@hannessnellman.com
Samuel Åkerlund

Samuel Åkerlund

Associate
samuel.akerlund@hannessnellman.com
Julius Lempiäinen

Julius Lempiäinen

Associate
julius.lempiainen@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
Helena Lamminen

Helena Lamminen

Senior Associate
helena.lamminen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Josefina Aalto

Josefina Aalto

Counsel
josefina.aalto@hannessnellman.com
Karoliina Kaartinen

Karoliina Kaartinen

Legal Assistant
karoliina.kaartinen@hannessnellman.com

Parties

Sampo plc

Transaction

Counsel to Sampo plc on its dual listing of its Class A shares on Nasdaq Stockholm in the form of Swedish Depository Receipts

Deal Value

Market capitalisation of approximately EUR 24.7 billion as of 31 October 2022

Role

Counsel to Sampo plc

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Robert Gordin

Robert Gordin

Senior Associate
robert.gordin@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Jenni Parviainen

Jenni Parviainen

Managing Associate
jenni.parviainen@hannessnellman.com
Sofia Ropo

Sofia Ropo

Senior Associate
sofia.ropo@hannessnellman.com
Jari Tukiainen

Jari Tukiainen

Specialist Partner
jari.tukiainen@hannessnellman.com

Parties

A consortium consisting of Security Trading, Fennogens Investments, Corbis, and Bain Capital (buyer), Caverion Oyj (Target)

Transaction 

Counsel to the offeror consortium consisting of Security Trading, Fennogens Investments, Corbis, and Bain Capital in the recommended public cash tender offer for all shares in Caverion Oyj.

Deal value 

EUR 955 million

Role 

Counsel to the offeror consortium consisting of Security Trading, Fennogens Investments, Corbis, and Bain Capital

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Anniina Järvinen

Anniina Järvinen

Partner
anniina.jarvinen@hannessnellman.com
Aki Salmela

Aki Salmela

Associate
aki.salmela@hannessnellman.com
Tuire Kuronen

Tuire Kuronen

Partner
tuire.kuronen@hannessnellman.com
Riikka Kuha

Riikka Kuha

Senior Associate
riikka.kuha@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Harri Vehviläinen

Harri Vehviläinen

Specialist Partner
harri.vehvilainen@hannessnellman.com
Ilmari Mäkimattila

Ilmari Mäkimattila

Associate
ilmari.makimattila@hannessnellman.com
Stefan Stellato

Stefan Stellato

Managing Associate
stefan.stellato@hannessnellman.com
Helena Lamminen

Helena Lamminen

Senior Associate
helena.lamminen@hannessnellman.com
Laura Sainio

Laura Sainio

Associate
laura.sainio@hannessnellman.com

Parties

SARC Architects Oy (seller), CapMan Buyout (buyer)

Deal

CapMan Buyout’s investment in award-winning Finnish architectural firm SARC Architects

Deal Value

Value not public

Role

Counsel to SARC Architects Oy

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Joonas Vartia

Joonas Vartia

Associate
joonas.vartia@hannessnellman.com
Anna Nyberg

Anna Nyberg

Senior Associate
anna.nyberg@hannessnellman.com

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

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Antti Nyberg

Antti Nyberg

Partner
antti.nyberg@hannessnellman.com
Sonja Siggberg

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
Jan Lilius

Jan Lilius

Specialist Partner
jan.lilius@hannessnellman.com
Mikko  Tavast

Mikko Tavast

Counsel
mikko.tavast@hannessnellman.com
Matias Moberg

Matias Moberg

Managing Associate
matias.moberg@hannessnellman.com
Robert Gordin

Robert Gordin

Senior Associate
robert.gordin@hannessnellman.com
Sofi Lehtinen

Sofi Lehtinen

Associate
sofi.lehtinen@hannessnellman.com

Parties

Citycon Oyj

Transaction

Citycon Oyj’s repurchase of a total amount of 9,500,000 own shares for a total purchase price of EUR 65.8 million as a result of a market based reverse accelerated bookbuild process

Deal Value

EUR 65.8 million

Role

Counsel to Citycon Oyj

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Aki Salmela

Aki Salmela

Associate
aki.salmela@hannessnellman.com
Joonas Vartia

Joonas Vartia

Associate
joonas.vartia@hannessnellman.com

Parties

PPG Industries, Inc. (Bidder), Tikkurila Oyj (Target)

Transaction

Recommended public cash tender offer for all of the shares in Tikkurila by PPG Industries, Inc.

Deal Value

EUR 1.5 billion

Role

Counsel to Tikkurila Oyj

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Anniina Järvinen

Anniina Järvinen

Partner
anniina.jarvinen@hannessnellman.com
Agda Vähä-Piikkiö

Agda Vähä-Piikkiö

Senior Associate
agda.vaha-piikkio@hannessnellman.com
Jenni Heurlin

Jenni Heurlin

Managing Associate
jenni.heurlin@hannessnellman.com
Laura Sainio

Laura Sainio

Associate
laura.sainio@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Satu Kokko

Satu Kokko

Senior Associate
satu.kokko@hannessnellman.com

Parties:

Cargotec Corporation, Konecranes Plc

Transaction:

The announced, but subsequently abandoned, merger of Cargotec and Konecranes in 2021-2022

Deal value:

Approx. EUR 2.7 billion

Role:

Counsel to Konecranes Plc

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Sonja Siggberg

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Jenni Heurlin

Jenni Heurlin

Managing Associate
jenni.heurlin@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Ingrid Remmelgas

Ingrid Remmelgas

Counsel
ingrid.remmelgas@hannessnellman.com
Matias Moberg

Matias Moberg

Managing Associate
matias.moberg@hannessnellman.com
Riikka Kuha

Riikka Kuha

Senior Associate
riikka.kuha@hannessnellman.com
Agda Vähä-Piikkiö

Agda Vähä-Piikkiö

Senior Associate
agda.vaha-piikkio@hannessnellman.com
Linnea Lehtonen

Linnea Lehtonen

Senior Associate
linnea.lehtonen@hannessnellman.com
Pauliina Sutinen

Pauliina Sutinen

Senior Associate
pauliina.sutinen@hannessnellman.com
Jenni Parviainen

Jenni Parviainen

Managing Associate
jenni.parviainen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com

Parties

FSN Capital, eCraft, Orango, Fellowmind

Transaction

Fellowmind, eCraft and Orango merge to create European Microsoft Business Applications platform

Deal Value

Value not public

Role

Counsel to eCraft and its owners

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com

Counsel to Pankaboard Oyj in the outsourcing of steam production to Adven Oy

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Maria Landtman

Maria Landtman

Partner
maria.landtman@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Janne Veneranta

Janne Veneranta

Managing Associate
janne.veneranta@hannessnellman.com
Jenni Parviainen

Jenni Parviainen

Managing Associate
jenni.parviainen@hannessnellman.com
Noora Britschgi

Noora Britschgi

Senior Associate
noora.britschgi@hannessnellman.com
Sami Niemi

Sami Niemi

Senior Associate
sami.niemi@hannessnellman.com

Parties

Outotec Oyj, Metso Corporation

Transaction

The combination of Outotec and Metso Minerals through a demerger

Deal Value

EUR 3.9 billion (illustrative combined sales)

Role

Counsel to Outotec Oyj

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Anna-Maria Tamminen

Anna-Maria Tamminen

Partner
anna-maria.tamminen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Elina Toivakainen

Elina Toivakainen

Counsel
elina.toivakainen@hannessnellman.com
Jenni Parviainen

Jenni Parviainen

Managing Associate
jenni.parviainen@hannessnellman.com
Annemari Rosi

Annemari Rosi

Senior Associate
annemari.rosi@hannessnellman.com
Emmi Kantola

Emmi Kantola

Senior Associate
emmi.kantola@hannessnellman.com
Stefan Stellato

Stefan Stellato

Managing Associate
stefan.stellato@hannessnellman.com
Maria Landtman

Maria Landtman

Partner
maria.landtman@hannessnellman.com

Parties

Peab AB (Buyer), YIT Corporation (Seller), YIT’s Nordic paving and mineral aggregates businesses (Targets)

Transaction

YIT’s sale of its Nordic paving and mineral aggregates businesses in Finland, Sweden, Norway and Denmark to Peab

Deal Value

EUR 280 million

Role

Counsel to YIT Corporation

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Jesper Nevalainen

Jesper Nevalainen

Partner
jesper.nevalainen@hannessnellman.com
Klaus Metsä-Simola

Klaus Metsä-Simola

Partner
klaus.metsa-simola@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Harri Vehviläinen

Harri Vehviläinen

Specialist Partner
harri.vehvilainen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Emmi Kantola

Emmi Kantola

Senior Associate
emmi.kantola@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Klaara Lähteenoja

Klaara Lähteenoja

Associate
klaara.lahteenoja@hannessnellman.com
Janna Pihanurmi

Janna Pihanurmi

Senior Associate
janna.pihanurmi@hannessnellman.com

Parties

Ilmarinen Mutual Pension Insurance Company, Kesko Corporation, Kesko Pension Fund, Kruunuvuoren Satama Oy

Transaction

A series of transactions, whereby Ilmarinen, Kesko, and Kesko Pension Fund, among other things, dissolve their joint ownership of Kruunuvuoren Satama and Ilmarinen acquires all 3,438,885 Kesko A shares held by Kruunuvuoren Satama.

Deal Value

EUR 164 million

Role

Counsel to Ilmarinen Mutual Pension Insurance Company, Kesko Corporation, Kesko Pension Fund, and Kruunuvuoren Satama Oy

Tuire Kuronen

Tuire Kuronen

Partner
tuire.kuronen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Harri Vehviläinen

Harri Vehviläinen

Specialist Partner
harri.vehvilainen@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner
mikko.huimala@hannessnellman.com
Tero Pikkarainen

Tero Pikkarainen

Senior Associate
tero.pikkarainen@hannessnellman.com

Parties

Glaston Corporation (Buyer), Conzzeta AG (Seller), Bystronic Maschinen AG, Bystronic Lenhardt GmbH and their subsidiaries (Targets)

Transaction

Glaston Corporation’s acquisition of Bystronic Glass and refinancing of Glaston

Deal Value

EUR 68 million

Role

Counsel to Glaston Corporation

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Anniina Järvinen

Anniina Järvinen

Partner
anniina.jarvinen@hannessnellman.com
Emmi Kantola

Emmi Kantola

Senior Associate
emmi.kantola@hannessnellman.com
Janne Veneranta

Janne Veneranta

Managing Associate
janne.veneranta@hannessnellman.com

Parties

Biovian Oy (Target), Keensight Capital (Bidder)

Transaction

Keensight Capital’s acquisition of a majority stake in Biovian, a leading European player in contract manufacturing and development of biopharmaceuticals

Deal Value

Value not public

Role

Counsel to Biovian Oy and founding shareholders

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com

Parties

Nordic Packaging and Container Holdings (Seller), Mondi Group (Buyer), Powerflute Group Holdings Oy (Target)

Transaction

Nordic Packaging and Container Holdings' sale of Powerflute Group Holdings Oy to a division of Mondi Group

Deal Value

Enterprise value of EUR 365 million

Role

Counsel to Nordic Packaging and Container Holdings (NPAC Holdings)

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Jesper Nevalainen

Jesper Nevalainen

Partner
jesper.nevalainen@hannessnellman.com
Outi Jousi

Outi Jousi

Counsel
outi.jousi@hannessnellman.com
Antti Kuha

Antti Kuha

Partner
antti.kuha@hannessnellman.com
Mikael Lustig

Mikael Lustig

Senior Associate
mikael.lustig@hannessnellman.com

Parties

Sampo plc (Buyer), 19.9% of the shares in Saxo Bank Group (Target)

Transaction

Sampo plc’s Acquisition of 19.9% of Shares in Saxo Bank Group

Deal Value

EUR 265 million

Role

Counsel to Sampo plc

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Panu Siitonen

Panu Siitonen

Partner
panu.siitonen@hannessnellman.com

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

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner
johanna.haltia-tapio@hannessnellman.com
Elina Toivakainen

Elina Toivakainen

Counsel
elina.toivakainen@hannessnellman.com
Laura Tavakka

Laura Tavakka

Talent Development Coordinator
laura.tavakka@hannessnellman.com
Heikki Majamaa

Heikki Majamaa

Specialist Partner
heikki.majamaa@hannessnellman.com
Harri Vehviläinen

Harri Vehviläinen

Specialist Partner
harri.vehvilainen@hannessnellman.com
Jenni Heurlin

Jenni Heurlin

Managing Associate
jenni.heurlin@hannessnellman.com
Stefan Stellato

Stefan Stellato

Managing Associate
stefan.stellato@hannessnellman.com

Parties

Oriola Oyj and Kesko Oyj

Transaction

A 50/50 percent joint venture to establish a chain of health, beauty and wellbeing stores across Finland, with the plan to expand the business to include pharmaceuticals if the legislation is amended

Deal Value

Value not public

Role

Counsel to Oriola

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Heidi Haanpää

Heidi Haanpää

Partner
heidi.haanpaa@hannessnellman.com
Panu Siitonen

Panu Siitonen

Partner
panu.siitonen@hannessnellman.com

Parties

Powerflute Oyj (Target), Madison Dearborn Partners, LLC (Bidder)

Transaction

Recommended cash offer for Powerflute Oyj by Nordic Packaging and Container (Finland) Holdings Oy an affiliate of Madison Dearborn Partners, LLC

Deal Value

GBP 268 million

Role

Counsel to Powerflute Oyj

Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Markus Bremer

Markus Bremer

Partner
markus.bremer@hannessnellman.com
Elina Toivakainen

Elina Toivakainen

Counsel
elina.toivakainen@hannessnellman.com

Parties

Uponor and Belkin International

Transaction

A joint venture to pioneer in the development of intelligent water sensing and conservation technology for buildings in the U.S. and Europe.

Deal Value

USD 50 million

Role

Counsel to Uponor

Tuire Kuronen

Tuire Kuronen

Partner
tuire.kuronen@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Panu Siitonen

Panu Siitonen

Partner
panu.siitonen@hannessnellman.com

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

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Klaus Ilmonen

Klaus Ilmonen

Partner, Doctor of Laws
klaus.ilmonen@hannessnellman.com
Elina Toivakainen

Elina Toivakainen

Counsel
elina.toivakainen@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner
heikki.vesikansa@hannessnellman.com
Anna-Maria Tamminen

Anna-Maria Tamminen

Partner
anna-maria.tamminen@hannessnellman.com
Sonja Siggberg

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com

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

Sonja Siggberg

Partner
sonja.siggberg@hannessnellman.com
Mikko Heinonen

Mikko Heinonen

Partner
mikko.heinonen@hannessnellman.com
Antti Kuha

Antti Kuha

Partner
antti.kuha@hannessnellman.com

Rankings

  • Hall of Fame, Commercial, corporate and M&A, Legal 500, 2024
  • Ranked in Corporate/M&A in Chambers Europe, 2024
  • “Mikko Heinonen is a very experienced partner with the ability to make decisions on tough questions and guide customers.” Chambers Global, 2024
  • "Very good legal knowledge, seniority, strong negotiation skills, strong project management, strong communication. Extremely broad knowledge. On my speed dial and my go-to external lawyer. He is a brilliant attorney that every company should have onboard during a public tender offer. Precise and accurate advice on matters with a very strategic and tactical approach.", IFLR1000, 2022
  • 'One client describes him as "a solid and experienced legal adviser."', Corporate and M&A, Chambers Global 2022
  • Hall of Fame, Commercial, corporate and M&A, Legal 500, 2022
  • Clients say: "Excellent. Deep knowledge and excellent collaboration skills.", "Professional, shows good judgement. Easy to work with. Always available.", IFLR1000, Financial and corporate, 2021
  • Ranked in Band 1 in Corporate/M&A in the 2021 edition of Chambers Global and Chambers Europe
  • "Mikko Heinonen is not only a great lawyer but also has excellent business acumen and can look at a transaction both in detail but more importantly also from a helicopter view w/o always including subject matter experts.", Commercial, corporate and M&A, Legal 500, 2020
  • "Mikko Heinonen – excellent overall commercial and governance advice.", Commercial, corporate and M&A, Legal 500, 2020
  • 'Clients hail Mikko Heinonen as "one of the best lawyers in Helsinki," and endorse him for being "extremely knowledgeable." He receives further praise for being "very pragmatic, a good thinker and getting things done efficiently."', Corporate and M&A, Chambers Global and Chambers Europe 2020
  • Ranked in Band 1 in Corporate/M&A in the 2019 & 2020 editions of Chambers Global and Chambers Europe
  • Mikko is ranked as a Market leader in Capital Markets and M&A in the 2019-2021 editions of IFLR1000
  • "Clients enthuse that 'he is very analytical.' Another source adds that 'he is well connected and aware of developments in the local market.'", Corporate and M&A, Chambers Global 2018 and Chambers Europe 2018
  • "Managing Partner Mikko Heinonen 'is absolutely splendid; his approach to people and problems is impressive,' according to clients, who also describe him as 'client and solution-oriented.'", Corporate and M&A, Chambers Global 2017 and Chambers Europe 2017
  • Leading individual, Commercial, corporate and M&A, Legal 500, 2015-2021
  • "Mikko Heinonen is 'a top-notch, pragmatic but firm lawyer who is very nice to work with,' " Corporate and M&A, Chambers Global 2016 and Chambers Europe 2016

 

  • 'Clients describe managing partner Mikko Heinonen as "an excellent partner. He always keeps focused on our priorities." Other interviewees report: "We are so impressed with him. He is strategic and gives us real business advice. He is very helpful."', Capital Markets, Chambers Europe 2015
  • "... 'He is splendid – a top choice for leading transactions,' say clients. He has notable experience of public M&A mandates",  Corporate/M&A, Chambers Global 2015 and Chambers Europe 2015
  • Ranked as "Lawyer of the Year" in Venture Capital Law (Helsinki, 2015) by Best Lawyers®
  • "...Mikko Heinonen is an esteemed presence in the field, noted for his 'solution-oriented' approach to major transactions. A member of the New York Bar, he is a particularly popular choice on international matters.", Corporate/M&A, Chambers Global 2014
  • Ranked among the best lawyers in the 2012, 2013, 2014, 2015, 2016 and 2017 editions (Helsinki: Capital Markets, Corporate Governance & Compliance Practice, Corporate Law, Mergers and Acquisitions, Private Equity and Venture Capital) of Best Lawyers®
  • 'Mikko Heinonen is highly reputed amongst interviewees who describe him as hardworking and experienced', Corporate/M&A, Chambers Global 2013 and Chambers Europe 2013
  • "...‘good advice as well as the ability to manage a team while keeping to deadlines’.", Corporate and M&A, Legal 500, 2013
  • 'Peers describe him as "an excellent lawyer, with a very good approach to clients and work."', Capital Markets, Chambers Europe 2012
  • '...peers recommend Mikko Heinonen as "very knowledgeable in a large range of corporate matters."', Corporate/M&A, Chambers Global 2012
  • ’Mikko Heinonen is praised for his innovative and service-minded approach and reputed for having broad knowledge in public M&A and capital markets.’, Capital Markets and Corporate/M&A, Chambers Europe 2011
  • Ranked as a Highly regarded lawyer in Capital Markets and Corporate and M&A in the 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 and 2018 editions of IFLR1000
  • 'Mikko Heinonen is also praised by clients for his communication skills. "Mikko Heinonen is one lawyer that really stands out; I like him a lot, he is very client-orientated," says one.', IFLR1000, 2011
  • "I work with Mikko Heinonen and several other partners," says one client, "and it's always above all expectations." The client adds: "They focus on the client needs rather than just responding to questions...", '"Heinonen is easy to approach and very client-focused," says one client.', Banking, Mergers and acquisitions, IFLR 1000, 2010
  • 'Mikko Heinonen is “a highly visible and respected lawyer”...and is also described by peers as “an efficient lawyer for all corporate matters.”', Chambers Europe 2009
  • 'Mikko Heinonen is an “absolute star” regarded by one source as “one of the brightest people in the legal profession.” He “works incredibly hard for his clients” and is “highly reliable,” and clients say they “never have to worry about anything” when instructing him.', Chambers Europe 2008
  • ‘The “intelligent and reliable” Mikko Heinonen is active in a range of transactions and counts financing as a specialism.’, Corporate/M&A, Chambers Global 2008

Memberships and Positions of Trust

  • Member of the Finnish Bar Association
  • Member of the New York Bar Association
  • Member of the International Bar Association

Education and Professional Background

  • Partner, Hannes Snellman, 2003–
  • Senior Partner, Hannes Snellman, 2020–2023
  • Managing Partner Helsinki, Hannes Snellman, 2011–2019
  • Head of M&A or Capital Markets, Hannes Snellman, 2005–2019, 2024–
  • Associate, Hannes Snellman, 1997–2003
  • LL.M. Harvard Law School, 2002, New York Bar Exam, 2002
  • Master of Laws, University of Turku, 1997