Public SEC filings / Open holdings research
DME Capital Management (Greenlight Capital)
David Einhorn (founder)
This page follows DME Capital Management, LP, SEC CIK 1489933, the current 13F-HR filer for Greenlight Capital. Greenlight Capital Inc, CIK 1079114, last filed a 13F-HR for the quarter ended December 31, 2023, on February 14, 2024, and has not filed one since. DME’s notice for that quarter named Greenlight Capital Inc as the other reporting manager. The June 30, 2026 Form 13F-HR was filed August 14, 2026, accession 0001172661-26-003786. Other included managers on that report are DME Advisors, LP and Greenlight Masters, LLC.
Search the covered holdings without an account. 13F reports are delayed snapshots, not a record of today’s trades.
Q3 2026 filing season · report date September 30 · SEC filing deadline: Monday, November 16.
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DME Capital Management (Greenlight Capital) · identity sources
Reporting manager CIK 1489933. Read the original filing for the scope and date of each disclosure.
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A disclosure is the start of research.
Our practitioner process uses 13F holdings as context alongside insider activity, ownership changes, analyst events and earnings. Each event needs its own source, publication time and assessment. A filing can arrive long after the position was established.
- Establish what is known. Read the filing, identify the reporting entity and security class, and distinguish the holdings date from the public acceptance time.
- Review the event. Follow Form 4 insider disclosures, Schedule 13D ownership disclosures, analyst events and market and earnings research. Use the source and as-of timestamp on each record; these links do not establish a current matching event.
- Plan before acting. Assess entry timing, liquidity, position sizing, invalidation conditions and the intended holding period.
- Allow for no trade. Delayed information, unclear mapping, limited liquidity or an already-priced event can leave no suitable action. No signal guarantees an outcome.
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Read the dates, scope and limitations
Managers generally have up to 45 days after quarter end to file, adjusted for weekends and holidays. 13F reports include long positions in specified securities; they do not show a complete portfolio, cash, shorts or every foreign holding. Confidential treatment can delay disclosures.
Newly reported, added, reduced and no longer reported describe share differences between comparable disclosures. They do not reveal trade dates or establish a same-day buy or sale. Corporate actions, changed identifiers and amended reports can make comparisons unreliable. Weights refer only to the reported universe displayed, not total assets. Option values, where included, describe reported underlying exposure, not option premiums; legacy snapshots excluded options. Related managers and shared discretion can overlap; do not add their reports as independent conviction.
Unvalidated hypothetical cost and performance claims are withheld. Reported values are historical filing values, not current prices or actual cost basis. Public facts for information only. Not a recommendation. This is not individualized investment advice. Gulfstream Capital and clients may hold securities shown. An educational label does not remove applicable obligations.