Institutional 13f Tracker | Agent Skills Atlas

About this skill

13F institutional ownership tracker: quarterly hedge fund and mutual fund holdings from SEC 13F filings, by ticker or by manager, with top institutional holders per stock, quarter-over-quarter buying and selling deltas, and activist investor positions across thousands of managers. Use for 13F filings, 13F holdings changes, hedge fund holdings, institutional ownership by ticker, who owns this stock, activist fund positions, and superinvestor portfolios. Read-only. No trading, no purchases, no write operations, no wallet access.

Quick start

Copy the install prompt. Use the green button above this README.
Send it to your agent. Paste it into your coding agent’s chat and send.
Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.

Installation guide →

Review, license & listing details

Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 5a5ccbc814bbaa2c0d6f2166b4915eb7d90f353af7463eee24c45aa674095713

About scan coverage and limitations

Original listing metadata

Original name

institutional-13f-tracker

Original description

About this listing

Category: General
Reported license: MIT
Listing language (estimated): English
Review status: Not individually reviewed
Agent compatibility: Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.