SEC 13F Filing Alerts

Institutional Alerts — Hedge Fund & Asset Manager Position Change Notifications

Get alerted when the world's largest hedge funds and asset managers change their positions. Monitor quarterly SEC 13F filings from institutions like Berkshire Hathaway, Bridgewater, and Tiger Global.

90-Day Alert Overview

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Quarterly snapshots of institutional portfolios

Any institutional investment manager with more than $100 million in assets under management must file a Form 13F with the SEC every quarter. This reveals their exact stock holdings as of the quarter-end — giving the public a window into the portfolios of the most sophisticated money managers in the world.

When a major institution like Berkshire Hathaway, Pershing Square, or Renaissance Technologies significantly increases or decreases a position, it sends a powerful signal about their conviction in that stock. FearAlert monitors 13F amendments and new filings so you can track institutional conviction changes after the next scheduled evaluation.

13F
Quarterly Holdings
The standard quarterly portfolio disclosure — all long equity positions as of quarter-end. Filed by 5,000+ institutions.
13F/A
Amended Filing
An amendment to a previously filed 13F — often signals a significant position change that was missed or corrected.
N-PORT
Fund Holdings
Monthly portfolio data filed by mutual funds and ETFs — more granular and more frequent than 13F data.

From quarterly disclosure to actionable insight

1
Choose institutions or tickers
Enter specific fund names (e.g., Berkshire Hathaway, Tiger Global) or tickers to watch for position changes by any institution.
2
Configure your filters
Filter by minimum position size, percentage change, or whether it is a new position, increased position, or full exit.
3
Quarter ends and filings open
Institutions file 13Fs after each quarter end, generally by the SEC deadline 45 days later. FearAlert checks for matching filings during its hourly scheduled run.
4
FearAlert processes the filing
FearAlert processes new 13F filings, calculates position changes versus the prior quarter, and identifies significant moves.
5
You receive your alert
Get notified with the institution name, the stock, the previous position, the new position, and the percentage change.

Popular institutional alert configurations

13FBerkshire new position
Institutional position change: New position — Berkshire Hathaway
Alert whenever Berkshire Hathaway opens a new stock position. Warren Buffett's new buys are among the most closely watched events in investing.
13FMajor exit on watchlist stock
Institutional position change: Full exit — NVDA, TSLA, AAPL
Alert when any large institution completely exits a position in a stock you own or monitor. Multiple institutions exiting can signal trouble.
13FNew position by any top fund
Institutional position change: New position — Top 50 hedge funds
Get alerted whenever any top-50 hedge fund opens a brand new equity position — a signal of fresh institutional conviction.
13FSignificant increase in a holding
Institutional position change: Increased >50% — Any ticker
Alert when a major institution more than doubles their position in any stock — a high-conviction accumulation signal.

Institutional alerts — common questions

What is a 13F filing? +
How often are 13F filings published? +
Can I track a specific institution like Berkshire Hathaway? +
What is the difference between a 13F and a 13D/13G? +
Do 13F filings include short positions? +

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