Research · Living data · Updated 2026-07-17
Who the biggest funds are buying and selling — a living read on 13F positions from Berkshire, Citadel, Elliott and thousands more.
Every quarter, the biggest institutional managers disclose their US equity holdings on SEC Form 13F, and the *changes* in those positions are one of the most-watched read-outs on where large capital is moving. NextTrack tracks 16,862 significant institutional-holder positions — Berkshire, Bridgewater, Citadel, Icahn, Elliott, and thousands more — with the quarter-over-quarter change on each. The count refreshes on every rebuild as new filers are drained from EDGAR.
| Metric | Live figure |
|---|---|
| NextTrack tracks | 16,862 institutional positions |
| Last updated | 2026-07-17 |
Form 13F is a quarterly filing that institutional managers with over $100M in qualifying assets must submit, disclosing their long US equity holdings. It's a genuine window into professional positioning — but it has two well-known limitations. It's filed **up to 45 days after quarter-end**, so it's a lagged snapshot, and it shows **only long US equities**, so shorts, options, and non-US holdings are invisible. Read it as a directional signal on conviction, not a real-time trade blotter.
A fund holding a stock tells you little — it may be a legacy position or an index-tracking necessity. A fund *adding aggressively* or *exiting* tells you about conviction at the margin. NextTrack computes the quarter-over-quarter share change on each of its 16,862 positions, which is what surfaces the new buys and the quiet exits that a raw holdings list would bury.
13F holdings are ingested directly from SEC EDGAR quarterly filings (form 13F-HR info tables), deduplicated by filer and quarter, with share-change computed against the prior filing. Coverage expands continuously as new filers are drained from the EDGAR full-index. The full tracker, sortable by filer and by biggest position changes, is in the app. For the activist subset of these filers, see [activist investor campaigns 2026](/research/activist-campaigns-2026).
13F dataset & methodology · Activist investor campaigns 2026 · Short squeeze candidates