SEC 13F Holdings — Hedge Fund & Institutional Portfolios

See what Berkshire, Bridgewater, Citadel or any other institution owns — and what they bought and sold last quarter. Every investment manager with over $100M in US equities files a 13F with the SEC each quarter. This Actor turns those filings into a clean table: one row per position, with value, shares, portfolio weight and the change against the previous quarter.

You enter	You get
Berkshire Hathaway, Bridgewater, Pershing Square or any 13F filer's CIK	one row per position: issuer, CUSIP, value, shares, % of portfolio, rank, and NEW / ADDED / REDUCED / UNCHANGED / SOLD OUT with share change

Example row (Berkshire Hathaway, Q2 2026)

{
  "type": "holding",
  "managerName": "BERKSHIRE HATHAWAY INC",
  "period": "2026-06-30",
  "filingDate": "2026-08-14",
  "portfolioValueUsd": 299253556246,
  "positionsCount": 29,
  "rank": 1,
  "issuer": "APPLE INC",
  "cusip": "037833100",
  "valueUsd": 65950296923,
  "shares": 227917808,
  "portfolioWeightPct": 22.038,
  "changeType": "UNCHANGED",
  "previousShares": 227917808,
  "sharesChange": 0,
  "sharesChangePct": 0,
  "previousValueUsd": 57843260493
}

Also in every row: managerCik, titleOfClass, figi, putCall, sharesType, investmentDiscretion, votingSole / votingShared / votingNone and filingUrl (the SEC filing).

Who uses it

• Investors and newsletter writers: follow "smart money" — new positions and exits of top funds every quarter.
• Analysts and IR teams: see which institutions hold, buy or sell a stock you cover.
• Fintech and AI apps: a structured, sourced feed of institutional portfolios for dashboards, screeners or LLM agents.

Why this one

• Changes, not just lists. Quarter-over-quarter comparison is built in, including positions the fund fully sold.
• Clean numbers. Positions split across sub-managers are summed per security; options (puts/calls) are kept separate and can be switched off. Values filed before 2023 (reported in thousands) are converted to dollars.
• Amendments handled. Restatements replace the original report; "new holdings" amendments (confidential positions disclosed later) are added to the quarter.
• Any 13F filer. 30 well-known managers work by name; any other by CIK (the number in the manager's SEC EDGAR URL).
• Official source, fast. Straight from SEC EDGAR — Berkshire takes about 3 seconds, Citadel's 13,000+ positions a few more.

Pricing

Pay per holding row. Error rows are free. Use Top N or Min. position value to get only the positions you care about, and set a maximum cost per run — the Actor stops cleanly when it is reached.

Input

Field	Default
managers	—	CIKs or known names
quarters	1	Latest N quarters per manager
compareWithPrevious	true	Change type and share change
includeSoldOut	true	Rows for exited positions
topN	0 (all)	Largest N positions per quarter (+ up to N largest exits)
minValueUsd	—	Skip small positions
includeOptions	true	Put/call rows
maxResults	5000	Total row limit

Good to know

• 13F covers long positions in US-listed equities, ETFs, options and some convertibles. It does not show shorts, cash, bonds or non-US holdings. Reports are due 45 days after quarter end, so they show the portfolio at quarter end, not today.
• Institutions only. Filers that are individual people are refused, and names, signatures and phone numbers from the filings are never returned.
• The Actor follows the SEC's fair-access rules (identifies itself, stays under 10 requests per second). For large runs you can add your contactEmail, which is sent only to sec.gov.
• Not affiliated with the U.S. Securities and Exchange Commission. Not investment advice.