Market Insights

A Form 4 can show direct Class A sales in Table I while Table II still reveals millions of derivative or indirect shares. Here is how to read both tables without making a false “owns zero shares” claim.

Some 13F filers are better read as asset allocators, while others are better read as concentrated stock pickers. Here is how to tell the difference quickly and why the distinction matters.

The best 13F research starts before the filing arrives. Here is how to use the last quarter’s holdings, concentration, new positions and ETF sleeves to build a smarter watchlist ahead of the next deadline.

A portfolio packed with ETFs and bond funds should not be read the same way as a concentrated stock-picking book. Here is how ETF sleeves change position-level meaning inside a 13F.

Form 4 filings usually arrive within two business days of a trade, which makes them much faster than 13Fs. Here is how to read the key transaction codes, separate sales from awards, and use insider data without overreacting.

The SEC's current Form 13F FAQ lists Friday, May 15, 2026 as the Q1 2026 filing deadline. Here is the full date map, what investors should expect to arrive first, and how to track filings without refreshing EDGAR all day.

Family offices managing trillions globally are largely invisible in 13F filings. Here is why they are exempt, how big the blind spot is, and how to partially fill the gap using other SEC filings.

Not every 13F is the final word. Amendments (13F-HR/A) can restate holdings, reveal hidden positions, and change portfolio data retroactively. Here is how to handle them.

WhaleScore is a portfolio quality heuristic on 13F Insight that ranges from 0 to 100. Here is what it measures, how to interpret it, and how to use it for smarter institutional research.

Not all 13F portfolios carry equal signal. Here is how Top-5 concentration and position count help distinguish conviction stock pickers from index trackers.

Every 13F filing describes positions from at least 45 days ago. Here is why the delay exists and how to use institutional holdings data correctly.

13D filings reveal activist intent while 13G filings signal passive accumulation. Here is how to tell the difference and what each means for stocks you follow.

Norges Bank holds $935 billion in US equities across 1,577 positions. Here is how sovereign wealth fund 13Fs differ from hedge funds, and why GIC and ADIA should be read through a broader long-term lens.

A 10% quarterly AUM move is usually market drift. A 50% move may be new money, a filing-entity reset, or a reporting-basis change. Here is the decision tree investors should use before overreacting to a 13F jump.

Susquehanna reports $868 billion in 13F value, but it is an options market maker, not a traditional asset manager. Here is why reported 13F values for firms like SIG, Citadel, and Jane Street do not mean what most investors think.

A hedge fund buying a new stock makes headlines, but true conviction is revealed in how a fund sizes its positions over multiple quarters.

Don't just look at the stock holdings. Discover how hedge funds use massive options books to signal leverage, hedging, or downside expectations.

When a fund’s reported 13F value falls during a rising market, something important may be happening outside the visible equity book. Here is how to read that signal.

13D and 13G filings can matter as much for timing as they do for ownership. Learn why the filing date itself often changes the signal — especially when activist intent is involved.

An amended 13F is more than paperwork. It can reveal corrected positions, newly visible holdings, or a very different picture than the original filing suggested.