Exiled opposition activist Mikhail Khodorkovsky answers questions during a Reuters Interview in Berlin, Germany, March 24, 2022. REUTERS/Tobias Schlie 

Exiled opposition activist Mikhail Khodorkovsky answers questions during a Reuters Interview in Berlin, Germany, March 24, 2022. REUTERS/Tobias Schlie 

Exiled opposition activist Mikhail Khodorkovsky answers questions during a Reuters Interview in Berlin, Germany, March 24, 2022. REUTERS/Tobias Schlie 

Exiled opposition activist Mikhail Khodorkovsky answers questions during a Reuters Interview in Berlin, Germany, March 24, 2022. REUTERS/Tobias Schlie 

Exiled opposition activist Mikhail Khodorkovsky answers questions during a Reuters Interview in Berlin, Germany, March 24, 2022. REUTERS/Tobias Schlie 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, attends a court hearing in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

TV anchor and journalist Ksenia Sobchak attends a court hearing during the trial of anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, attends a court hearing in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, attends a court hearing in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, sits next to her son in a courtroom in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, arrives at a court building in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, attends a court hearing in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Anti-Kremlin activist Anastasia Shevchenko, who is accused of carrying out activities on behalf of Open Russia opposition group financed by exiled former oil tycoon Mikhail Khodorkovsky, attends a court hearing in the city of Rostov-On-Don, Russia February 18, 2021. REUTERS/Sergey Pivovarov 

Former Russian tycoon Mikhail Khodorkovsky poses for a pictured after an interview with Reuters in central London, Britain, January 18, 2021. REUTERS / Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky poses for a pictured after an interview with Reuters in central London, Britain, January 18, 2021. REUTERS / Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky attends an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky attends an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky attends an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Former Russian tycoon Mikhail Khodorkovsky poses for a pictured after an interview with Reuters in central London, Britain, January, 18, 2021. REUTERS/Henry Nicholls 

Russian former tycoon Mikhail Khodorkovsky and Mayor of Kiev and former boxer Vitali Klitschko attend the summer party "Bild 100" of German publisher Axel Springer at the Reichstag building in Berlin, Germany, September 9, 2019. REUTERS/Hannibal Hanschke 

Russian former tycoon Mikhail Khodorkovsky and Mayor of Kiev and former boxer Vitali Klitschko attend the summer party "Bild 100" of German publisher Axel Springer at the Reichstag building in Berlin, Germany, September 9, 2019. REUTERS/Hannibal Hanschke 

Russian former tycoon Mikhail Khodorkovsky attends the summer party "Bild 100" of German publisher Axel Springer at the Reichstag building in Berlin, Germany, September 9, 2019. REUTERS/Hannibal Hanschke 

Russian former tycoon Mikhail Khodorkovsky and German Health Minister Jens Spahn attend the summer party "Bild 100" of German publisher Axel Springer at the Reichstag building in Berlin, Germany, September 9, 2019. REUTERS/Hannibal Hanschke 

Russian former tycoon Mikhail Khodorkovsky and Mayor of Kiev and former boxer Vitali Klitschko attend the summer party "Bild 100" of German publisher Axel Springer at the Reichstag building in Berlin, Germany, September 9, 2019. REUTERS/Hannibal Hanschke 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Mikhail Khodorkovsky, a former oil tycoon who fell foul of Vladimir Putin's Kremlin, is seen during an interview with Reuters at his office in central London, Britain, August 13, 2018. REUTERS/Dylan Martinez 

Former Russian tycoon Mikhail Khodorkovsky (L) speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky (L) speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Former Russian tycoon Mikhail Khodorkovsky speaks during a Reuters Newsmaker event at Canary Wharf in London, Britain, November 26, 2015. REUTERS/Peter Nicholls 

Russian exile, Mikhail Khodorkovsky delivers a speech at Chatham House in central London, February 26, 2015. REUTERS/Toby Melville (BRITAIN - Tags: POLITICS) 

Russian exile, Mikhail Khodorkovsky, is seen between audience members as delivers a speech at Chatham House in central London, February 26, 2015. REUTERS/Toby Melville (BRITAIN - Tags: POLITICS) 

Russian exile, Mikhail Khodorkovsky, delivers a speech at Chatham House in central London, February 26, 2015. REUTERS/Toby Melville (BRITAIN - Tags: POLITICS) 

Russian exile, Mikhail Khodorkovsky delivers a speech at Chatham House in central London, February 26, 2015. REUTERS/Toby Melville (BRITAIN - Tags: POLITICS) 

Platon Lebedev, former business partner of Russian ex-tycoon Mikhail Khodorkovsky, attends a news conference in Moscow, February 18, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: POLITICS) 

Platon Lebedev, former business partner of Russian ex-tycoon Mikhail Khodorkovsky, attends a news conference in Moscow, February 18, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: POLITICS PROFILE HEADSHOT) 

Platon Lebedev, former business partner of Russian ex-tycoon Mikhail Khodorkovsky, attends a news conference in Moscow, February 18, 2015. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: POLITICS PROFILE) 

Russian President Vladimir Putin is seen on a screen during his annual end-of-year news conference in Moscow December 18, 2014. Putin said on Thursday former oil tycoon Mikhail Khodorkovsky, one of his biggest critics, had the right to engage in politics "as any Russian citizen". REUTERS/Maxim Zmeyev (RUSSIA - Tags: POLITICS ENERGY BUSINESS) 

Russian President Vladimir Putin is seen on a screen during his annual end-of-year news conference in Moscow December 18, 2014. Putin said on Thursday former oil tycoon Mikhail Khodorkovsky, one of his biggest critics, had the right to engage in politics "as any Russian citizen". REUTERS/Maxim Zmeyev (RUSSIA - Tags: POLITICS ENERGY BUSINESS) 

Russian President Vladimir Putin speaks during his annual end-of-year news conference in Moscow December 18, 2014. Putin said on Thursday former oil tycoon Mikhail Khodorkovsky, one of his biggest critics, had the right to engage in politics "as any Russian citizen". REUTERS/Maxim Zmeyev (RUSSIA - Tags: POLITICS ENERGY BUSINESS) 

Former Russian tycoon Mikhail Khodorkovsky speaks about his "Open Russia" movement at the Council on Foreign Relations in New York October 6, 2014. REUTERS/Brendan McDermid (UNITED STATES - Tags: BUSINESS POLITICS)