--- title: "Understanding 13F Amendment Filings: HR vs HR/A Explained" type: learn slug: understanding-13f-amendment-filings-hr-vs-hra canonical_url: https://13finsight.com/learn/understanding-13f-amendment-filings-hr-vs-hra published_at: 2026-04-14T20:50:48.622Z updated_at: 2026-04-14T20:50:48.623Z author: Sarah Mitchell author_title: Education Editor author_url: https://13finsight.com/authors/sarah-mitchell word_count: 285 locale: en source: 13F Insight --- # Understanding 13F Amendment Filings: HR vs HR/A Explained > Not every 13F is the final word. Amendments (13F-HR/A) can restate holdings, reveal hidden positions, and change portfolio data retroactively. Here is how to handle them. Not every 13F filing is the final word. Institutional investors can amend their quarterly holdings reports by filing a 13F-HR/A, which restates the original filing. Understanding amendments helps you avoid using outdated data and catch important corrections.TL;DR13F-HR is the original quarterly filing. 13F-HR/A is an amendment that restates it.Amendments can change position sizes, add missing holdings, or correct errors.Goldman Sachs filed its Q4 2025 13F as an amendment, restating the original.Always check the filing date and type to ensure you are reading the most current version.HR vs HR/A: What Is the Difference?Filing TypeMeaningWhen Filed13F-HROriginal quarterly holdings reportWithin 45 days of quarter end13F-HR/AAmendment restating the originalAny time after the original13F-NTNotice of late filing (no holdings data)When the filer cannot meet the 45-day deadlineWhy Filers AmendPosition corrections: The original filing contained errors in share counts or values.Missing holdings: Some positions were accidentally omitted and need to be added.Confidential treatment expiration: Holdings previously granted confidential treatment are now disclosed in an amendment.Subsidiary consolidation: The filing entity restructured and needs to restate which holdings fall under its reporting.How Amendments Affect Your AnalysisWhen you see a filer's AUM or holdings change retroactively between data pulls, an amendment is usually the cause. On 13F Insight, the most recent filing version is always displayed. But if you are comparing data from different sources, discrepancies may reflect one source using the original and another using the amendment.Confidential HoldingsSome filers request confidential treatment for specific positions, allowing them to omit holdings from the original filing. When confidential treatment expires (typically after one quarter), the positions appear in an amendment. This means an HR/A filing can reveal positions the filer actively tried to hide during the reporting period — often their most interesting new investments.FAQ ## FAQ ### How do I know if a filing has been amended? Check the filing type. 13F-HR is the original; 13F-HR/A is an amendment. On 13F Insight, the most recent version is always displayed. ### Do amendments change the filing date? The amendment has its own filing date but restates data for the original reporting period. The positions still reflect the quarter-end date, not the amendment date. ### Why would a filer hide positions with confidential treatment? Filers may request confidential treatment to avoid tipping off the market while they are still building a position. Once the treatment expires, the position appears in an amendment. ### Should I wait for amendments before analyzing a 13F? For most filers, the original filing is sufficient. But for filers known to file amendments (like Goldman Sachs), checking for HR/A filings a few weeks after the original can reveal important updates. --- Source: 13F Insight — https://13finsight.com/learn/understanding-13f-amendment-filings-hr-vs-hra Author: Sarah Mitchell — https://13finsight.com/authors/sarah-mitchell Last updated: 2026-04-14T20:50:48.623Z