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Disclosery

Barta Jan

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13F filer, CIK 1892479, Prague, Czech Republic

Barta Jan filed a 13F-NT notice for the quarter ended 2026-06-30 on 2026-08-13.

Filed (acceptance time not in the bulk data set), ingested 13F-NT 0000921895-26-002115

This filer reports no holdings of its own for Q2 2026. It filed a 13F-NT notice, and its holdings are in the report of . How notices are handled.

Changes against Q1 2026 are not shown: it was a notice, with the holdings in another manager's report (0 positions on file), so every position would read as new.

Part of the filer group Pale Fire Capital

How groups are built

Stakes and trades reported after 2026-06-30

13D, 13G and Form 4 filings by this filer's group, dated after the 13F period, on securities the quarter does not hold as shares.

  • COUR COURSERA INC: 13G/A 28,806,415 shares, 10.9% of the class, 13G/A filed 2026-09-29, 0000921895-26-002675Timeline
    Accepted , ingested
  • LSPD LIGHTSPEED COMMERCE INC: 13G 6,654,851 shares, 5.1% of the class, 13G filed 2026-10-01, 0000921895-26-002694Timeline
    Accepted , ingested

How Q2 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-NT 0000921895-26-002115 notice2026-08-13acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
Form 4 0000921895-26-002677 Coursera, Inc.2026-09-29
Form 3 0000921895-26-002676 Coursera, Inc.2026-09-29
13F-NT 0000921895-26-002115 Quarter ended 2026-06-302026-08-13acceptance time not in the bulk data set
13F-NT 0000921895-26-001323 Quarter ended 2026-03-312026-05-14acceptance time not in the bulk data set