Adam Back did not own Bitcoin before 2013 despite his contributions to blockchain technology.

From Investing.com
January 2, 2025 1:30:26 pm:

Adam Back, known for creating the Hashcash algorithm, did not own any Bitcoin until 2013. His algorithm influenced Bitcoin’s mining process and proof-of-work model. Back’s contributions are acknowledged in Satoshi Nakamoto’s white paper. Despite his involvement, he did not purchase or mine Bitcoin in 2009, calling himself “an idiot.”

Back’s first Bitcoin purchase was in 2013, with the cryptocurrency’s value increasing by over 50,000% since then. He later founded Blockstream, a blockchain technology company known for innovations like sidechains and the Bitcoin satellite network. Back’s influence extends deeply into the development of modern blockchain systems.

Read more at Investing.com: Adam Back Confirms He Did Not Own Any Bitcoin (BTC) Before 2013 By U.Today