SEC 13F research hub
13F holdings tracker — what institutional investors own, when they buy, and what they trim
SnowballHare tracks 11 selected institutional investors and cross-references their latest supported SEC 13F filings across 64 stock-level pages. Read by investor to study portfolio changes, or by stock to compare reported ownership and share-count trends.
13F Institutional Holdings
Browse each tracked manager, report quarter, filing date, full holdings table, top positions, market value, and share-count changes.
13F Stock Activity
Browse by ticker to see which institutions own a stock, who added, who reduced, and how large the position is inside each portfolio.
Common 13F Research Views
Open the view that matches the question: manager portfolio, manager detail, stock activity, or stock detail.
Latest 13F Trends In This Hub
754 reported holding records across 11 tracked managers.
Use this date to avoid reading old holdings as current positioning.
This separates fresh buying from risk reduction across tracked managers.
New positions and exits are stronger watchlist signals than unchanged legacy holdings.
Popular Managers And Stock Examples
Start with a manager page when the question is portfolio behavior; start with a stock page when the question is ownership concentration.
Connect 13F To Stock Research
13F research guide
Read the filing without mistaking it for real time
Use manager and stock views together, then check the report quarter, filing lag, position weight, and source document.
Choose a research view Start by manager or by stock
- By investor — browse tracked manager pages for a position sheet, top concentrations, additions, reductions, and exits. Start with Berkshire Hathaway, Pershing Square, or ARK Invest.
- By stock — use the stock activity directory to see which tracked managers report a ticker, how large each position is, and whether reported shares increased or decreased.
What the database tracks Positions, changes, concentration, and filing context
- Position sheet — reported long positions, share count, market value, and portfolio weight.
- Position changes — new, increased, reduced, unchanged, and sold-out records versus the prior comparable filing.
- Concentration — the positions that account for the largest share of a tracked portfolio.
- Cross-investor ownership — stock pages connecting the managers that report the same ticker.
- Filing context — report quarter, filing date, source accession, and the lag between the portfolio snapshot and publication.
Important limitations A partial and delayed portfolio snapshot
- Not a complete portfolio. Shorts, many derivatives, bonds, private assets, cash, and non-reportable securities are not fully represented.
- Filing lag. Reports are generally due within 45 days after quarter end, so positions may have changed before the filing becomes public.
- Selected security types. The form covers Section 13(f) securities rather than every asset a manager owns.
- Possible amendments or confidential treatment. Later filings can revise data, and some positions may be temporarily withheld under SEC rules.
Coverage and sources 11 investors and 64 stock pages
This database currently follows 11 selected institutional investors and builds 64 stock-level ownership pages from their latest supported SEC 13F-HR information tables. It is a curated research set, not a claim to cover every 13F filer in EDGAR.
- SEC EDGAR — Form 13F-HR information tables, filing dates, accession numbers, reported shares, and values.
- Market reference data — ticker and company labels used to organize stock-level views.
Tracked filings refresh through scheduled ingestion and site builds. Always use the report quarter and filing date shown on the page rather than treating holdings as real time. Read the research methodology and editorial standards.
Common questions 5 concise answers
What is a 13F filing?
Form 13F is a quarterly report filed by institutional investment managers that meet the SEC reporting threshold. It discloses certain long positions in Section 13(f) securities and is generally due within 45 days after quarter end.
When do 13F filings come out?
The filing deadline is generally 45 days after each calendar quarter ends, around mid-February, mid-May, mid-August, and mid-November. Many managers file near the deadline, and SnowballHare refreshes tracked filings through scheduled ingestion and site builds.
Can I assume a famous investor still owns every reported position?
No. A 13F is a delayed snapshot. The manager may have changed or closed a position after quarter end, and the filing does not reveal every hedge, short, private holding, bond position, or non-reportable asset.
Why does a fund's 13F value not match its public assets under management?
13F covers only reportable Section 13(f) securities. A firm can also hold international securities, bonds, cash, private assets, shorts, derivatives, and other positions outside that disclosure, so reported 13F value and total firm assets are different measures.
What is the difference between a new buy and an increased 13F position?
A new buy was not reported in the prior comparable quarter and appears in the current one. An increased position was already present and now has a higher reported share count. Both need to be read alongside position weight, filing lag, and the manager's wider portfolio.