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MARA Long Ridge AI Data Center Campus

PRJ-0744 · Site · Hannibal, Ohio, United States

Record last updated Oct 28, 2026

Scope and capacity

MARA plans to develop an AI and critical-IT campus around the Long Ridge energy complex in Hannibal. The source identifies 200 MW of existing MARA capacity and a path toward 600 gross MW over time. MARA Holdings is publicly identified in the project record for Hannibal, Monroe County, OH, US. The disclosed development record includes 200 MW of current site capacity identified for accelerated AI development; 505 MW onsite generation; up to 600 gross MW expansion path. Power and infrastructure include integrated power, land, water and fiber campus anchored by an onsite combined-cycle generation facility. MARA identifies 200 MW of current capacity that could accelerate the initial AI and critical-IT buildout. MARA agreed to an approximately $1.5 billion acquisition and disclosed a $785 million bridge commitment; the transaction remained subject to approvals at June 30, 2026.

Headline: 200 MW Utility capacity

Numbers refer to their stated physical boundaries and are not added together. Source dates, claim dates and record updates have different meanings. Missing dates and locators are not inferred.

Location context · Long Ridge Energy campus | Hannibal | Monroe County | Ohio

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 59498 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Lifecycle status · Preconstruction

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 59499 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Reported capacity · 200 MW

Design · MARA Long Ridge AI Data Center Campus (Project)

Claim 59500 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Capacity basis · MARA identifies 200 MW of current capacity that could accelerate the initial AI and critical-IT buildout.

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 59501 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Development scale · 200 MW of current site capacity identified for accelerated AI development

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 107716 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA quarter ended June 2026 Form 10-Q

    MARA Holdings · Document date: Aug 6, 2026 · Corroborating

    Source reference: SRC-6042 · Regulatory record · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000150760526000022/mara-20260630.htm

  2. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Development milestone · 505 MW onsite generation

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 107717 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA quarter ended June 2026 Form 10-Q

    MARA Holdings · Document date: Aug 6, 2026 · Corroborating

    Source reference: SRC-6042 · Regulatory record · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000150760526000022/mara-20260630.htm

  2. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Power arrangement · Up to 600 gross MW expansion path.

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 107718 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA quarter ended June 2026 Form 10-Q

    MARA Holdings · Document date: Aug 6, 2026 · Corroborating

    Source reference: SRC-6042 · Regulatory record · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000150760526000022/mara-20260630.htm

  2. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Boundary context · Long Ridge Energy campus | Hannibal | Monroe County | Ohio

Actual · MARA Long Ridge AI Data Center Campus (Project)

Claim 107719 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MARA quarter ended June 2026 Form 10-Q

    MARA Holdings · Document date: Aug 6, 2026 · Corroborating

    Source reference: SRC-6042 · Regulatory record · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000150760526000022/mara-20260630.htm

  2. MARA Long Ridge acquisition announcement

    MARA Holdings · Document date: Apr 30, 2026 · Primary

    Source reference: SRC-3264 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.sec.gov/Archives/edgar/data/1507605/000119312526193982/d54802dex991.htm

Counterparties and capital

MARA Holdings · Developer · CMP-1481

Debt financing

$785,000,000 · Apr 29, 2026

Bridge commitment supporting the proposed Long Ridge acquisition.

MARA Holdings (Sponsor)

Sources (2)

Financing record 210; claim-specific source links appear in the exhibit sources where published.

This schedule captures public Cartis research. It is not a title, lien or legal-opinion report. Document page/section locators and claim review timestamps are included only when published; this version has no separate locator or claim-review-time feed.