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<cov:edgarSubmission xmlns:cov="http://www.sec.gov/edgar/atsn/cover" xmlns:ats="http://www.sec.gov/edgar/atsncommon">
  <cov:submissionType>ATS-N/MA</cov:submissionType>
  <cov:rbOperatesPursuantToFormATS>N</cov:rbOperatesPursuantToFormATS>
  <cov:accessionNumber>0001798802-26-000007</cov:accessionNumber>
  <cov:filerCredentials>
    <cov:filerCik>0001798802</cov:filerCik>
    <cov:filerCcc>XXXXXXXX</cov:filerCcc>
  </cov:filerCredentials>
  <cov:fileNumber>013-00182</cov:fileNumber>
  <cov:txNMSStockATSName>PureStream, LLC</cov:txNMSStockATSName>
  <cov:taStatementAboutAmendment>PureStream, LLC is filing this material amendment to: (1) update Part III, Item 8 (Order Sizes) to remove the minimum order size for Liquidity Seeking (Ls) orders; and (2), update Part III, Item 19 (Fees), to lower the minimum per-share fee rate and to add execution dynamics as a fee consideration factor.

These amendments apply to all Subscribers. These changes do not apply to the Broker-Dealer Operator because the Broker-Dealer Operator does not trade on the platform.</cov:taStatementAboutAmendment>
  <cov:liveTestFlag>LIVE</cov:liveTestFlag>
  <cov:flags>
    <cov:overrideInternetFlag>false</cov:overrideInternetFlag>
    <cov:confirmingCopyFlag>false</cov:confirmingCopyFlag>
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