- Publicly traded Bitcoin miners saw sharp stock gains after pivoting to AI, but insider stock sales have triggered fresh governance concerns.
- Executives at TeraWulf, Cipher Digital, Riot Platforms and Core Scientific disclosed sales under prearranged trading plans as the AI rally cooled.
- TeraWulf CEO Paul Prager sold 1.59 million shares before the company announced a major AI lease with Anthropic, intensifying scrutiny.
- Despite heavy AI infrastructure spending, returns remain elusive, with fewer than half of AI initiatives exceeding costs, according to industry research.
Several publicly traded Bitcoin miners have enjoyed sharp stock re-ratings after pivoting toward AI infrastructure, but investors are increasingly questioning whether insiders and major shareholders capitalized on the rally before the sector cooled, raising fresh governance concerns, according to Blocksbridge Consulting. In its latest Miner Weekly newsletter, Blocksbridge said the AI narrative lifted valuations as miners repositioned around data centers and hyperscaler partnerships.
However, sentiment has since weakened, with the TEM AI Infrastructure Growth Index declining 16% over the past month. That shift has brought insider transactions into sharper focus, as executives at TeraWulf, Cipher Digital, Riot Platforms and Core Scientific disclosed stock sales under prearranged Rule 10b5-1 trading plans.
Strategic investors have also reduced exposure, including stablecoin issuer Tether, which trimmed its stake in Bitdeer after the company’s AI-driven rebound. Blocksbridge said TeraWulf offers the clearest example: CEO Paul Prager and an entity he manages sold roughly 1.59 million shares before the company announced a 20-year AI infrastructure lease with AI developer Anthropic.
Many Bitcoin miners have pivoted toward AI data centers as mining economics became more challenging after Bitcoin’s 2024 halving. Yet the AI trade has grown crowded, and a Deloitte.com/global/en/issues/ai/ai-roi-the-paradox-of-rising-investment-and-elusive-returns.html” rel=”nofollow noopener”>Deloitte report described AI as a “paradox of rising investment and elusive returns.”
Separate research by Teneo found that fewer than half of AI initiatives have delivered returns exceeding their costs. Despite these challenges, companies continue investing aggressively, betting that long-term demand for compute capacity will outweigh near-term profitability concerns.
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