CleanSpark Releases May 2026 Operational Update

CleanSpark (Nasdaq: CLSK) issued its unaudited May 2026 bitcoin mining update and announced a senior finance hire.

Rhea-AI Summary

CleanSpark (Nasdaq: CLSK) issued its unaudited May 2026 bitcoin mining update and announced a senior finance hire. Ruben Sahakyan joins as SVP of Finance to lead Capital Markets, FP&A, and M&A, bringing over $20B in advisory transaction experience.

In May, CleanSpark produced 671 bitcoin, with average daily output of 21.66 and peak single-day production of 23.16. Operational hashrate reached 50.0 EH/s, supported by 808 MW utilized and 1.8 GW of contracted power. Bitcoin holdings increased to 13,470, after producing 671 and selling 654 at an average price of $79,934.

Positive

• May 2026 bitcoin production of 671 BTC, averaging 21.66 BTC per day
• Operational hashrate peaked at 50.0 EH/s with 46.2 EH/s average
• Contracted power portfolio of 1.8 GW with 808 MW utilized
• Bitcoin treasury increased to 13,470 BTC as of May 31, 2026
• Average bitcoin sale price of $79,934 on 654 BTC sold
• Appointment of SVP Finance with $20B in advisory deal experience

Negative

• None.

Argus Jun 4 session

-4.71% close to close Open Argus

Details

News Market Reaction – CLSK

In the Jun 4 session, CLSK declined 4.71%, reflecting a moderate negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement provides a detailed snapshot of CleanSpark’s May 2026 performance, including 671 B...

Analysis

This announcement provides a detailed snapshot of CleanSpark’s May 2026 performance, including 671 BTC produced, an operational hashrate of 50.0 EH/s, and 1.8 GW of power under contract supporting 808 MW utilized. Bitcoin holdings reached 13,470 BTC, with an average sale price of $79,934. The update also highlights continued build‑out toward a multi‑gigawatt AI and digital infrastructure platform, following earlier disclosures on production growth and significant recent financial results.

Key Figures

Bitcoin produced: 671 BTC Peak daily production: 23.16 BTC CY2026 BTC produced: 3,110 BTC +5 more

Bitcoin produced

671 BTC

May 2026 production

Peak daily production

23.16 BTC

Single best day in May 2026

CY2026 BTC produced

3,110 BTC

Cumulative through May 31, 2026

Operational hashrate

50.0 EH/s

Peak operational hashrate in May 2026

GW under contract

1.8 GW

Power portfolio under contract

Utilized power

808 MW

Maximum megawatts used to support hashrate

BTC holdings

13,470 BTC

Total bitcoin holdings as of May 31, 2026

Average BTC sale price

$79,934

Average price per bitcoin sold in May 2026

Historical Context

5 past events · Latest: May 20

5 events

1. May 20

   Leadership appointment

   24h Move

   +7.9%

   Named Ruben Sahakyan SVP of Finance to support scaling platform.

2. May 11

   Earnings results

   24h Move

   -5.8%

   Reported Q2 2026 revenue decline and large net loss with negative EBITDA.

3. May 06

   April operations update

   24h Move

   +8.1%

   Outlined April BTC production, hashrate, power contracts, and AI progress.

4. May 05

   Earnings webcast notice

   24h Move

   +4.6%

   Announced webcast timing for discussion of Q2 2026 financial results.

5. Apr 07

   March operations update

   24h Move

   -0.4%

   Reported March BTC production, hashrate gains, and fleet efficiency metrics.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

operational hashrate, bitcoin network, derivative transactions

3 terms

operational hashrate technical

"Operational Hashrate 1 | 50.0 EH/s"

Operational hashrate is the actual computing power that a cryptocurrency mining operation is producing at a given time, measured by how many cryptographic problems it can solve per second. Think of it as the number of machines in a factory that are actually running versus the total that could be installed; higher operational hashrate means greater potential for mining rewards and revenue, while drops can signal equipment failures, maintenance, or rising costs that matter to investors.

bitcoin network technical

"capable of actively contributing to our mining pool or directly to the Bitcoin network."

A global, decentralized system of computers that records, verifies and relays bitcoin transactions so ownership can move without a central bank or company. Think of it as a public, tamper‑resistant ledger run by many independent participants rather than one authority. Investors care because the network’s security, speed, fees and ability to process transactions directly affect bitcoin’s usefulness, supply rules and ultimately its market value and adoption.

derivative transactions financial

"1,560 was posted as collateral or as receivable and all related to derivative transactions."

Derivative transactions are contracts whose value depends on the price or performance of something else—like stocks, bonds, currencies, interest rates or commodities. Think of them as insurance or bets about a future price: investors use them to protect against losses, lock in prices, or try to amplify returns, but they can also magnify losses, create cash demands and expose a firm to the risk that the other party won’t meet its obligation, so they can materially affect a company’s financial stability and volatility.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Strengthens management team with $20B deal veteran supporting multi-gigawatt commercialization

LAS VEGAS, June 4, 2026 /PRNewswire/ -- CleanSpark, Inc. (Nasdaq: CLSK) ("CleanSpark" or the "Company"), a market-leading data center developer, today released its unaudited Bitcoin mining and operations update for the month ended May 31, 2026.

"This May we strengthened our management team by adding Ruben Sahakyan to bolster our AI data center financing capabilities as we progress commercialization efforts in Sandersville and Texas," said CEO and Chairman Matt Schultz. "In parallel, we continue to develop our power pipeline, add high-impact talent across the entire organization, and operate best-in-class bitcoin mining data centers across the country."

Hiring of Ruben Sahakyan as Senior Vice President of Finance
CleanSpark has appointed Ruben Sahakyan as SVP of Finance to oversee Capital Markets, Financial Planning & Analysis, and M&A functions. Sahakyan joined the Company from Keefe, Bruyette & Woods, where he served as Managing Director and Co-Head of Digital Assets & Infrastructure Investment Banking. With more than 15 years of experience and over $20 billion in advisory transactions across digital assets, infrastructure, and fintech, he brings deep expertise to CleanSpark as the Company scales toward becoming a multi-gigawatt AI and digital infrastructure platform.

May 2026 Bitcoin Mining Highlights (Unaudited)

Production Metrics
Bitcoin produced	671
Peak single day bitcoin production	23.16
Average daily bitcoin production	21.66
CY2026 bitcoin produced	3,110
Fleet Metrics
Operational Hashrate1	50.0 EH/s
Average operating hashrate	46.2 EH/s
Peak efficiency of deployed fleet	16.07 J/Th
Deployed fleet as of May 31	224,473
Power Portfolio Metrics
GW under contract2	1.8 GW
Utilized MW3	808 MW
Bitcoin Treasury Activity
Total bitcoin holdings as of April 30	13,453
Bitcoin produced	671
Bitcoin sold at spot	(404)
Bitcoin sold pursuant to call exercises	(250)
Total bitcoin holdings as of May 314	13,470
Average price per bitcoin sold5	$79,934

1Operational Hashrate refers to the highest hashrate historically achieved concurrently by all installed and functional miners that were: properly racked and configured, supported by energized infrastructure, and capable of actively contributing to our mining pool or directly to the Bitcoin network.

2GW under contract includes all contracted power capacity for wholly owned or leased sites and excludes any other non-binding arrangements.

3Utilized MW represents the maximum megawatts used concurrently in support of the fleet's Operational Hashrate.

4As of May 31, 2026, CleanSpark's Bitcoin holdings were 13,470 in total, of which 1,560 was posted as collateral or as receivable and all related to derivative transactions.

5Average price calculated as net proceeds from bitcoin sold plus net premiums generated divided by total bitcoin sold.

About CleanSpark
CleanSpark (Nasdaq: CLSK), is a market-leading data center developer with a proven track record of success. We control a portfolio of more than 1.8 GW of power, land, and data centers across the United States powered by globally competitive energy prices. Sitting at the intersection of Bitcoin, energy, operational excellence, and capital stewardship, we optimize our infrastructure to deliver superior returns to our shareholders. Monetizing low-cost, high reliability energy by producing a global emerging critical resource – compute – positions us to prosper in an ever-changing world. 

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In this press release, forward-looking statements include, but may not be limited to, statements regarding the Company's expectations, beliefs, plans, intentions, and strategies. In some cases, you can identify forward-looking statements by terms such as "may," "will," "should," "expects," "plans," "anticipates," "could," "intends," "targets," "projects," "contemplates," "believes," "estimates," "forecasts," "predicts," "potential" or "continue" or the negative of these terms or other similar expressions. The forward-looking statements are subject to a variety of known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to: scaling towards becoming a multi-gigawatt AI and digital infrastructure platform; the success and performance of the Company's non-bitcoin data center activities and expansion into non-bitcoin infrastructure; completion of construction, regulatory approvals, and electrical power availability to achieve anticipated growth; the success and performance of the digital asset management and derivatives trading activities; the success of our digital currency mining activities; bitcoin volatility; the dependency on utility rate structures and government incentive programs; and other risks described in the Company's prior press releases and in its filings with the Securities and Exchange Commission (SEC), including under the heading "Risk Factors" in those filings. Forward-looking statements contained herein are made only as to the date of this press release, and we assume no obligation to update or revise any forward-looking statements as a result of any new information, changed circumstances or future events or otherwise, except as required by applicable law.

Investor Relations Contact 
Harry Sudock
702-989-7693
ir@cleanspark.com

Media Contact
Eleni Stylianou
702-989-7694
pr@cleanspark.com

View original content to download multimedia:https://www.prnewswire.com/news-releases/cleanspark-releases-may-2026-operational-update-302791187.html

SOURCE CleanSpark, Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What were CleanSpark (Nasdaq: CLSK) bitcoin mining results for May 2026?

CleanSpark produced 671 bitcoin in May 2026, with average daily production of 21.66 BTC and a peak day of 23.16 BTC. According to CleanSpark, calendar year 2026 production reached 3,110 BTC by May 31, reflecting its expanded mining fleet and infrastructure.

What operational hashrate did CleanSpark (CLSK) report for May 2026?

CleanSpark reported an operational hashrate of 50.0 EH/s for May 2026 and an average operating hashrate of 46.2 EH/s. According to CleanSpark, this was supported by a deployed fleet of 224,473 miners across its energized infrastructure and bitcoin mining data centers.

How large was CleanSpark (CLSK) bitcoin treasury as of May 31, 2026?

CleanSpark held 13,470 bitcoin as of May 31, 2026, up from 13,453 at April 30. According to CleanSpark, 1,560 BTC were posted as collateral or receivable related to derivative transactions, reflecting part of its broader treasury and risk management strategy.

How much bitcoin did CleanSpark (CLSK) sell and at what price in May 2026?

CleanSpark sold 654 bitcoin in May 2026, including 404 BTC at spot and 250 BTC via call exercises. According to CleanSpark, the average realized price was $79,934 per bitcoin, calculated from net sale proceeds and net option premiums over total bitcoin sold.

What power capacity supports CleanSpark (CLSK) mining operations in 2026?

CleanSpark reported 1.8 GW of power under contract, with 808 MW utilized to support May’s operational hashrate. According to CleanSpark, contracted capacity covers wholly owned or leased sites and excludes non-binding arrangements, underpinning its multi-gigawatt AI and digital infrastructure ambitions.

Who is Ruben Sahakyan and what is his role at CleanSpark (CLSK)?

Ruben Sahakyan is CleanSpark’s new Senior Vice President of Finance, overseeing Capital Markets, FP&A, and M&A. According to CleanSpark, he previously co-led Digital Assets & Infrastructure Investment Banking at Keefe, Bruyette & Woods and has over $20 billion in advisory transaction experience.