--- title: "CleanSpark Mined 529 Bitcoin in September and Ends Monthly Updates" description: "The company reached 13,530 BTC in treasury reserves and closed a $2.276 billion senior note offering as it shifts to quarterly reporting." url: https://basisdesk.news/news/cleanspark-september-2026-bitcoin-production-update published: 2026-10-09T12:51:03.406Z modified: 2026-10-09T12:51:03.406Z section: Mining & Infrastructure author: Basis Desk Newsroom (AI-generated, source-verified) sentiment: neutral tickers: [BTC] tags: [cleanspark, bitcoin-mining, hashrate, treasury, data-centers] license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice. --- # CleanSpark Mined 529 Bitcoin in September and Ends Monthly Updates The company reached 13,530 BTC in treasury reserves and closed a $2.276 billion senior note offering as it shifts to quarterly reporting. ## At a glance - **What happened:** CleanSpark reported mining 529 BTC in September 2026, closed a $2.276 billion debt raise, and ended monthly operational updates. - **Why it matters:** The company is transitioning its corporate profile toward traditional data center reporting while funding infrastructure via long-term debt. - **Who is affected:** CleanSpark investors, Bitcoin market analysts, and power infrastructure counterparties. - **Takes effect:** 2026-09-30 - **What's next:** CleanSpark will report future operational and financial performance on a quarterly reporting schedule. - **Status:** announced - **Primary source:** [CleanSpark Releases September 2026 Operational Update](https://www.prnewswire.com/news-releases/cleanspark-releases-september-2026-operational-update-302903249.html) — PR Newswire ## Key points - CleanSpark produced 529 BTC in September 2026, taking total calendar-year output to 5,432 BTC [1]. - Bitcoin treasury reserves reached 13,530 BTC, with 3,475 BTC allocated to collateral or receivables tied to derivatives [1]. - The miner closed $2.276 billion in senior secured notes to finance data centers and discontinued monthly operations updates [1]. ## Editorial remark - **Context:** Bitcoin miners have increasingly turned to debt markets and high-performance computing infrastructure to monetize power capacity following network halving cycles. - **Impact:** CleanSpark shareholders and market observers will no longer receive monthly mining disclosures, aligning CLSK reporting with traditional data center operators. - **Watch:** The release of CleanSpark's first standard quarterly report and construction milestones at the Sandersville project. CleanSpark reported producing 529 $BTC in September 2026, bringing its calendar-year output to 5,432 coins [1]. The company's total treasury stood at 13,530 BTC as of Sept. 30, down slightly from 13,703 BTC at the end of August after parting with 702 coins during the month [1]. The firm sold two bitcoin at spot and 700 coins through exercised call options at an average realized price of $72,928 [1]. Of the remaining treasury reserves, 3,475 BTC were pledged as collateral or held as receivables connected to derivatives positions [1]. At the time of writing, Bitcoin traded at $83,037. Operationally, CleanSpark logged a peak operational hashrate of 50 EH/s and an average operating hashrate of 36.0 EH/s across a deployed base of 199,745 machines [1]. Fleet efficiency reached 16.07 J/TH, with utilized power totaling 808 MW out of 1.8 GW under contract [1]. Average daily production was 17.64 BTC, peaking at 18.99 BTC in a single 24-hour period [1]. ## Shift to Quarterly Reporting and Data Center Expansion CleanSpark confirmed that its subsidiary, CSDC Finance I, LLC, closed an offering of $2.276 billion in 7.875% senior secured notes due 2031 on Sept. 25 [1]. Chief Executive Officer Matt Schultz stated the debt financing fully capitalizes the construction of the Sandersville data center site [1]. The facility supports a lease projected to deliver around $6.6 billion in contracted revenue over its baseline duration [1]. Alongside the operational figures, CleanSpark announced it will discontinue its monthly operational releases [1]. The miner plans to align with broader energy and data center industry reporting conventions by shifting strictly to standard quarterly updates [1]. ## FAQ **Why is CleanSpark ending its monthly mining reports?** The company stated it is transitioning to standard quarterly reporting to align with reporting practices of peer firms in the energy and data center industries. **How much Bitcoin does CleanSpark hold?** CleanSpark held 13,530 BTC as of Sept. 30, 2026, with 3,475 BTC posted as collateral or held as receivables for derivative contracts. ## Sources 1. [CleanSpark Releases September 2026 Operational Update](https://www.prnewswire.com/news-releases/cleanspark-releases-september-2026-operational-update-302903249.html) — PR Newswire, 2026-10-09 --- Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai