---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-23-019523"
form_type: "8-K"
ticker: "RIOT"
cik: "0001167419"
company_name: "Riot Platforms, Inc."
filed_at: "2023-12-06T23:59:59+00:00"
generated_at: "2026-06-07T16:51:38.589331+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Riot orders 66,560 MicroBT miners for $290.5M, secures options for 265,000 more

## Summary
- New purchase order for 66,560 miners (18.02 EH/s); total cost $290.5M; deliveries Apr 2024–Apr 2025.
- MicroBT granted annual purchase options for up to 265,000 additional miners through Dec 2027.
- Riot expects total self-mining hash rate to exceed 38 EH/s by H2 2025, with path above 100 EH/s.
- November 2023: produced 552 Bitcoin (+21% MoM), held 7,358 BTC, deployed hash rate 12.4 EH/s.
- Miners primarily M66S (18.5 J/TH); all manufactured in USA; built for immersion cooling.

## SEC filing metadata
- accession: 0001558370-23-019523
- form_type: 8-K
- ticker: RIOT
- cik: 0001167419
- company_name: Riot Platforms, Inc.
- filed_at: 2023-12-06T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1167419/000155837023019523/0001558370-23-019523-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1167419/000155837023019523/riot-20231204x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-23-019523
- JSON: https://secwatch.observer/filing/0001558370-23-019523.json
- Plain text: https://secwatch.observer/filing/0001558370-23-019523.txt

## Key facts
- Material Agreements
  Riot Platforms, Inc. entered into Amendment to Master Purchase and Sale Agreement - Extended Annual Purchase Options with MicroBT valued at options to purchase up to 66,560 Miners per year through December 31, 2027 (effective 2023-12-01).
  - Action: entry
  - Agreement: asset purchase
  - Counterparty: MicroBT
  - Value: options to purchase up to 66,560 Miners per year through December 31, 2027
  - Effective: 2023-12-01
  source text: In connection with P.O. 02, MicroBT extended additional annual Miner purchase options to Riot, providing Riot with the option to purchase up to 66,560 Miners per year from MicroBT, for a total of 265,000 additional Miners, under the Master Agreement, on terms at least on par with P.O. 02.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1167419/000155837023019523/0001558370-23-019523-index.htm
- Material Agreements
  Riot Platforms, Inc. entered into Purchase Order 02 under the Master Purchase and Sale Agreement with MicroBT valued at $290.5 million (effective 2023-12-01).
  - Action: entry
  - Agreement: asset purchase
  - Counterparty: MicroBT
  - Value: $290.5 million
  - Effective: 2023-12-01
  source text: On December 4, 2023, Riot Platforms, Inc. (together with its consolidated subsidiaries, “ Riot ”) exercised its option under the master purchase and sale agreement, dated effective as of June 23, 2023, (the “ Master Agreement ”) with MicroBT (through its manufacturing subsidiary), a leading manufacturer of Bitcoin miners, (“ MicroBT ”) to purchase 66,560 Bitcoin mining servers (“ Miners ”) on terms at least on par with the terms of the original purchase order executed under the Master Agreement, as of June 23, 2023, covering Riot’s acquisition of 33,280 Miners from MicroBT (“ P.O. 01 ”). Accordingly, Riot and MicroBT entered into a second purchase order, dated effective as of December 1, 2023, under the Master Agreement (“ P.O. 02 ” and, together with P.O. 01, the “ Purchase Orders ”) covering Riot’s acquisition of the 66,560 Miners subject to Riot’s option.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1167419/000155837023019523/0001558370-23-019523-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.