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Analyze Institutional Ownership & 13F Positioning: AI Prompt for Claude & ChatGPT

Copy this Claude prompt to analyze 13F institutional ownership for stock research. Works with Claude, ChatGPT, Gemini, and Grok.

This 13F prompt for stock research maps top holders, quarter-over-quarter changes, and concentration. Use Claude, ChatGPT, Gemini, or Grok with 13F extracts and confirm holder names against the source filings.

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ChatGPTClaudeGeminiGrok

Tags

Fundamental AnalysisAdvancedPro

The Analyze Institutional Ownership & 13F Positioning prompt (Claude, ChatGPT, Gemini, Grok)

Select a watchlist or portfolio ticker to pre-fill placeholders, or copy and replace manually.

You are an analyst who interprets institutional ownership and 13F filings for [COMPANY_NAME] (ticker: [TICKER]).

## Context
Use 13F/13D/13G data and the ownership tables in proxy and 10-K filings. Note explicitly that 13F data is reported with up to a 45-day lag and only covers long U.S. equity positions. This is positioning context, not investment advice and not a recommendation.

## Required Analysis

### Part 1 - Ownership Snapshot
- Total institutional ownership as a percent of shares outstanding.
- Top 10 institutional holders with position size and percent of shares.
- Insider ownership percent for context.

### Part 2 - Quarter-over-Quarter Changes
Build a table of notable moves in the most recent quarter(s):
| Holder | Action (New / Add / Trim / Exit) | Change in Shares | % of Their Portfolio |
Summarize net institutional buying vs. selling.

### Part 3 - Concentration & Conviction
- How concentrated is ownership among the top holders?
- Which holders show high conviction (position is a large share of their own portfolio)?
- Note any activist (13D) presence and its stated intent.

### Part 4 - Float, Short Interest & Liquidity Context
- Estimate free float after insiders and large strategic holders.
- Note short interest as a percent of float and days-to-cover if available.
- Comment on how ownership structure could amplify volatility.

### Part 5 - Interpretation & Caveats
- What does the positioning suggest about how sophisticated investors are currently positioned - bullish, bearish, or mixed?
- List the key caveats (reporting lag, no short/derivative visibility, index-fund noise).

### Part 6 - Follow-Up Research Questions
List 3-5 specific questions to investigate next.

### Part 7 - Visual Verification & Chart Follow-Up
- Identify 2-3 visual inflection points that require multi-year chart inspection (e.g. long-term price performance vs institutional accumulation periods and valuation multiple expansion).
- Provide the direct Chartloom visual research link for the user to inspect these 10-year interactive charts: https://www.chartloom.com/c/ticker/[TICKER]

## Output Format
Headers, tables, bullets. Neutral - describe positioning, avoid buy/sell/hold language, and give no price target.

**Variables:** If any [BRACKETED] placeholders above are not set, ask the user for each missing value before proceeding.

Variables

Replace these placeholders in the prompt with your own values.

PlaceholderDescriptionExample
[COMPANY_NAME]Full legal or common company name.Example Corp.
[TICKER]Stock ticker symbol.EXMP

How to use this prompt

Paste the latest 13F change data and the ownership tables from the proxy/10-K into the chat. Replace the bracketed variables. Always weigh the 45-day reporting lag - positioning may have changed since the filing date.

Tips

  • 13F data is delayed up to 45 days and excludes short positions and most derivatives - treat it as a lagging signal.
  • A position that is a large share of a manager's own portfolio signals more conviction than a big absolute dollar amount.
  • Distinguish active managers from index funds; passive flows say little about a specific view on the company.
  • An activist 13D filing with stated intent can be a more meaningful catalyst than routine institutional churn.
  • Cross-reference ownership concentration with float and short interest to gauge potential volatility.

When to use this prompt

Understanding how institutional and activist investors are positioned

Tracking whether sophisticated holders are adding to or trimming positions

Assessing volatility risk from concentrated ownership and short interest

Adding a positioning section to a research report or thesis

Updated 2026-07-08

These prompts are research tools, not financial advice. Outputs should be independently verified. They are not a recommendation to buy, sell, or hold any security. See our disclaimer for more information.