Markku Savusalo, VP of Digital Engineering at Siili Solutions, has been appointed interim CEO of Siili Solutions Plc, effective immediately, due to CEO Tomi Pienimäki's departure.

Savusalo takes over following the departure of Tomi Pienimäki, who has agreed with the board to step down after leading the company for four years. The board has initiated a process to appoint a permanent successor, as the company looks to advance its next phase focused on strategy execution, customer value creation, and international growth, Siili Solutions Plc announced today.





Savusalo has been with Siili Solutions, an AI-powered digital development company, since 2015 and has most recently led its digital engineering business line. The company operates across key European markets, including Finland, the Netherlands, the United Kingdom, and Germany, supporting clients in digital transformation and AI adoption.

“On behalf of the Board of Directors I want to thank Tomi for leading Siili into a new strategic phase during the past four years,” said Chair Harry Brade, highlighting the company’s focus on accelerating profitable growth in its next stage.

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Leaders

Markku Savusalo steps in as interim CEO at Siili Solutions as CEO departs

Markku Savusalo steps in as interim CEO at Siili Solutions as CEO departs

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Credit: Siili Solutions, Markku Savusalo

Credit: Siili Solutions, Markku Savusalo

Markku Savusalo, VP of Digital Engineering at Siili Solutions, has been appointed interim CEO of Siili Solutions Plc, effective immediately, due to CEO Tomi Pienimäki's departure.

Savusalo takes over following the departure of Tomi Pienimäki, who has agreed with the board to step down after leading the company for four years. The board has initiated a process to appoint a permanent successor, as the company looks to advance its next phase focused on strategy execution, customer value creation, and international growth, Siili Solutions Plc announced today.





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Savusalo has been with Siili Solutions, an AI-powered digital development company, since 2015 and has most recently led its digital engineering business line. The company operates across key European markets, including Finland, the Netherlands, the United Kingdom, and Germany, supporting clients in digital transformation and AI adoption.

“On behalf of the Board of Directors I want to thank Tomi for leading Siili into a new strategic phase during the past four years,” said Chair Harry Brade, highlighting the company’s focus on accelerating profitable growth in its next stage.

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Authors

Emmi Laine is head of business content at Listeds and our lead for finance and business coverage. She sets the editorial agenda, interviews Nordic business leaders, and writes stories, newsletters, and social content on timely market and corporate topics. Emmi brings nearly eight years of experience from Shanghai's Yicai Global / Yicai Media Group, where she was awarded for reporting on China’s economy, finance sector, and technology innovation. She holds an MSc in Innovation and Entrepreneurship from ESADE Business School in Barcelona and a Master’s degree in International Design Business Management from Aalto University. She also holds a Bachelor’s degree in Culture Studies with a major in Journalism from Stockholm University and has studied Mandarin Chinese and Chinese culture. Emmi is a Finnish citizen and has lived in Finland, Sweden, China, and Portugal.

Emmi Laine is head of business content at Listeds and our lead for finance and business coverage. She sets the editorial agenda, interviews Nordic business leaders, and writes stories, newsletters, and social content on timely market and corporate topics. Emmi brings nearly eight years of experience from Shanghai's Yicai Global / Yicai Media Group, where she was awarded for reporting on China’s economy, finance sector, and technology innovation. She holds an MSc in Innovation and Entrepreneurship from ESADE Business School in Barcelona and a Master’s degree in International Design Business Management from Aalto University. She also holds a Bachelor’s degree in Culture Studies with a major in Journalism from Stockholm University and has studied Mandarin Chinese and Chinese culture. Emmi is a Finnish citizen and has lived in Finland, Sweden, China, and Portugal.

Authors

Journalist

Emmi Laine is head of business content at Listeds and our lead for finance and business coverage. She sets the editorial agenda, interviews Nordic business leaders, and writes stories, newsletters, and social content on timely market and corporate topics. Emmi brings nearly eight years of experience from Shanghai's Yicai Global / Yicai Media Group, where she was awarded for reporting on China’s economy, finance sector, and technology innovation. She holds an MSc in Innovation and Entrepreneurship from ESADE Business School in Barcelona and a Master’s degree in International Design Business Management from Aalto University. She also holds a Bachelor’s degree in Culture Studies with a major in Journalism from Stockholm University and has studied Mandarin Chinese and Chinese culture. Emmi is a Finnish citizen and has lived in Finland, Sweden, China, and Portugal.

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Investor Event

Listeds Investor Event · Defence

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21 September 2026

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Market Signals

Six of the nine biggest ownership moves in Helsinki in August required no notification

Sep 16, 2026

Three did. Two of those were the same bond amortisation at one company, and the third — a take-private crossing 90% — filed in September, after the month it belonged to.

August looked quiet on Nasdaq Helsinki flagging notifications. The shareholder registers moved more than the disclosure feed did. Finland's thresholds start at 5%, and most of the month's largest register moves never touched the ladder.

Here is what moved, what was notified, and what the gap between those two sets says about reading Nordic ownership.

Citycon: the take-private the register sees last

G City Ltd's directly registered stake in Citycon grew from 39.50% to 42.55% during August, a gain of 5.6 million shares. 

In the same window the Skandinaviska Enskilda Banken Helsinki Branch nominee account, which had been holding a large Citycon block in custody, shrank by 4.8 million shares. Citibank Europe's custodial line edged down as well.

That is not buying. It is the shares crossing out of nominee registration into G City's own name as the tender offer settles. G City's flagging notification of 2 September puts its total holding at 91.05%, against a directly registered position of 42.55% at the end of August. Both are correct: the rest still sits in custodial accounts, re-registering in tranches. Read alone, the register would tell you G City owns less than half of Citycon.

G City crossed 90% on 1 September, commenced compulsory redemption of the minority shares and will apply to delist. Our Citycon piece this week has the offer periods, the divestment and the parking dispute.

Faron: a new largest register holder, and no new money

Heights Capital Management, through CVI Investments, crossed a threshold in Faron Pharmaceuticals on 4 August and filed the next day: shares up from 7.99% to 9.41%. The same notification shows its holding through financial instruments falling from 12.53% to 11.30%, and combined exposure barely moving, 20.52% to 20.72%. This is a convertible bond converting under the up-to-€35m arrangement Faron entered with a Heights-managed entity in April 2025 — not a purchase. Faron's own treasury holding fell from 10.97% to 9.37% in the same event, through dilution rather than a sale.

Also on the move

Register moves during August. None of these required a notification.

Lemonsoft — Rite Ventures grew from 58.7% to 61.1%, continuing to mop up minority shares after its mandatory tender offer earlier in 2026. 

Bittium — the SEB Helsinki Branch nominee line rose from 7.2% to 9.7%, the largest custodial swing of the month. 

Siili Solutions — Jtel Oy grew from 2.8% to 4.4%. 

Solwers — Terrasolid Ltd grew from 5.5% to 6.7%. 

Tokmanni — the SEB Helsinki Branch nominee stake fell from 13.3% to 12.0%. 

Revenio Group — BlackRock fell from 1.6% to 0.4%.

What the ladder catches

Finnish thresholds run at 5, 10, 15, 20, 25, 30, 50, two-thirds and 90% of shares or votes. Set the nine moves against that ladder:

Move

Notified

Why

Faron — Heights 7.99% → 9.41%

Yes, 5 Aug

Crossed a threshold on the share line

Faron — treasury 10.97% → 9.37%

Yes, 4 Aug

Crossed a threshold on the share line

Citycon — G City 86.51% → 91.05%

Yes, 2 Sept

Crossed 90% on 1 Sept, after the month closed

Lemonsoft — Rite Ventures 58.7% → 61.1%

No

No threshold between 50% and two-thirds

Solwers — Terrasolid 5.5% → 6.7%

No

No threshold between 5% and 10%

Siili — Jtel 2.8% → 4.4%

No

Entirely below 5%

Revenio — BlackRock 1.6% → 0.4%

No

Entirely below 5%

Bittium — SEB nominee 7.2% → 9.7%

No

Custodial nominee line

Tokmanni — SEB nominee 13.3% → 12.0%

No

Custodial nominee line

Both of the August notifications here came from one issuer, and they describe two halves of a single bond amortisation. The largest ownership event of the Helsinki summer filed in September. Read one instrument without the other and you get a month that looks like this one: quiet on the feed, busy on the register.

Market Signals

Steady Energy takes its nuclear plans to First North

Sep 16, 2026

A reverse listing into 3North Partners puts a pre-revenue reactor developer on First North. The board, not the order book, is what investors are pricing.

Steady Energy, the Finnish developer of heat-only small modular reactors, is coming to First North through a share exchange in which investment company 3North Partners acquires all of its shares. Counting the investment commitments and a retail offering of up to €5 million, the company would open at a market value of roughly €345 million, against a share capital valued at about €270 million at listing after dilution from staff options.

The company has not signed a single binding delivery agreement.

Pension capital commits ahead of the first commercial milestone

3NP has secured irrevocable commitments of about €69.8 million in a directed issue. Elo, Ilmarinen and Varma are among the investors, alongside Suomen Teollisuussijoitus (Tesi) and Fortum Energy Holding B.V. The European Investment Bank has added a convertible loan of up to €40 million, its first financing for a small modular reactor project.

The participation of three major Finnish pension insurers adds institutional backing to the transaction, alongside the €115 million financing package.

The board is the instrument doing the de-risking

Pekka Lundmark, former chief executive of Fortum and Nokia, will chair the combined company. Chirayu Batra, Juha Juntunen, Petteri Tenhunen and Timo Ahopelto join him. Behind 3NP are Ahopelto and Lundmark, alongside Juha Hulkko, one of the creators of Bittium, Ilkka Paananen of Supercell and Tero Ojanperä. 3NP's chief executive Tuomo Vähäpassi was involved in taking Canatu to market through a SPAC.

The structure resembles a reverse listing: 3NP acquires Steady Energy and brings the combined company to First North. The transaction also puts a prominent group of technology and business figures around a company that remains in the product-development phase and has yet to sign a binding delivery agreement.

Founders lock up for three years and still take €850,000 each at closing

Tommi Nyman, Hannes Haapalahti and Petteri Tenhunen accept a three-year transfer restriction. They also sell shares to 3NP for €850,000 each in connection with closing, and may release a further €750,000 each once the company announces its first appointment as first-priority plant supplier.

The second release is well built. It pays only on a commercial milestone, which is where alignment should sit. The €850,000 at closing is the part worth naming plainly: founder liquidity ahead of a single signed contract, inside a lock-up structured to signal the opposite.

Retail investors are offered up to €5 million of a €115 million package, under five per cent. Nyman frames the public tranche as access and share liquidity rather than funding, which is accurate.

2028 is the date to hold the company to

The €20 million test reactor in Salmisaari should be running at the end of next year. Kuopio is the furthest-advanced project, with environmental assessment and zoning under way and Kuopion Energia as counterparty. Kerava, Jyväskylä and Helsinki follow. Nyman expects first-priority supplier selection before the end of 2028 and a first plant operating in the early 2030s.

Helsinki's tender is worth watching for a narrower reason. It examines both heat-only reactors and reactors producing heat and electricity. The LDR-50 does heat alone, which is the source of its cost advantage and also the limit of where it can compete.

The targets assume everything lands: revenue above €500 million by 2035 and €1 billion by 2040, at an adjusted operating margin of 25 to 30 per cent, across a priority market in Finland, Sweden, Poland and Czechia the company sizes at €30 billion and 230 to 300 reactors by 2050. A single unit is priced at €75 to €150 million. The French-founded Calogena is already circling the same Finnish demand.

Between here and there sit a licensing process, a construction decision and a first customer. The 2028 appointment is what converts this from a financing story into an operating one.

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