Updated Mar 8, 2026 · 2187 articles
Insights
Research, news and field guides on institutional positioning. Powered by real SEC filings — 13F, 13D/G, Form 4.
Travere Therapeutics Insiders Sold About $16.7M Through the Filspari Rally
Four Travere insiders sold roughly $16.7M across late December through early February, a period when the stock had already been re-rated around the Filspari story.
Alex RiveraJack Schuler Kept Buying QuidelOrtho Below $12 as the Diagnostics Story Was Still Being Rebuilt
QuidelOrtho 10% owner Jack Schuler bought more stock in January 2026, extending a buy campaign that had already put several million dollars to work while the company remained in rebuild mode.
Alex RiveraRoku Founder Anthony Wood Sold About $9M of Class A Stock in 2026 - and Still Reported 12.83% Beneficial Ownership
Anthony Wood sold roughly $9M of Roku Class A shares across January and February 2026, but the bigger ownership story is that Schedule 13G still showed 12.83% beneficial ownership.
Alex RiveraAmundi's Q4 2025 Filing Keeps a Mega-Cap Core While Quietly Rebuilding the Optionality Sleeve
Amundi's top holdings still read like a global mega-cap core, but the more revealing part of the filing is the new convertible and optionality sleeve around that foundation.
Marcus ChenNuveen's Q4 2025 Filing Kept a Broad Core but Turned Aggressive on Netflix and ServiceNow
Nuveen still looks like a diversified mega-cap allocator in Q4 2025, but the filing also shows sharper risk-on behavior through outsized Netflix and ServiceNow increases.
Marcus ChenHow to Read a Big 13F AUM Jump Without Mistaking It for a New Investment Thesis
A huge AUM swing can look dramatic, but it does not always mean a manager suddenly changed its mind. Here's how to separate a portfolio reset from real conviction.
Sarah MitchellBenchmark Wrappers vs Direct Ownership: How to Read Both Together
A filing can own broad-market ETFs and the same flagship stocks directly. The right reading comes from looking at both layers together.
Sarah MitchellHow to Spot a Value-Growth Barbell in a 13F
Some managers balance value and growth explicitly through sleeves such as VTV and VUG. Here is how to recognize that structure.
Sarah MitchellHow to Read Trading-Firm 13Fs
Trading-firm filings often mix benchmark wrappers, tactical ETFs, and high-beta single names. They need a different reading than advisor or pension books.
Sarah MitchellHow to Read Custodian-Bank 13Fs
Custodian-bank filings often share the same market leaders, but subtle differences in breadth still matter.
Sarah MitchellHow to Read Pension and Sovereign 13Fs Without Expecting Hedge-Fund Behavior
Pension and sovereign-style filers often care more about hierarchy and durability than about flashy quarter-to-quarter trades.
Sarah MitchellState Street, Northern Trust, and BNY Mellon Show the Custodian-Bank Breadth Spectrum in Q4 2025
State Street, Northern Trust, and Bank of New York Mellon all hold the same mega-cap leaders, but their top-ten concentration ranges from 27.7% to 31.4%.
Marcus ChenHow to Read Defensive Stocks Inside a Growth-Heavy 13F
A defensive stock near the top of a growth-heavy filing often tells you the manager is shaping outcomes, not just chasing a single market narrative.
Sarah MitchellWhat Top-Three Concentration Tells You About a Fund
Top-three concentration is a fast way to understand whether the very front of a portfolio is doing too much of the work.
Sarah MitchellWhat SPY, IVV, and VOO Really Signal in a 13F
Broad-market ETF lines often say more about benchmark architecture than about a manager being passive or uninteresting.
Sarah MitchellWhy GOOG and GOOGL Show Up Separately in 13F Filings
Alphabet often appears twice in 13F filings. That does not mean a manager has two different theses. It usually means two share classes.
Sarah MitchellHow to Read International ETF Sleeves in a 13F
International ETFs often reveal whether a manager is truly global or still mostly U.S.-centric with a token foreign sleeve.
Sarah MitchellWhy Mega-Cap Overlap Does Not Mean Two Funds Are Clones
Many institutional portfolios share the same famous names. That does not make them copies. Weight, breadth, and supporting sleeves still matter.
Sarah MitchellHow to Tell Whether a Stock Is a Real Thesis or Just a Benchmark Artifact
Many large funds own the same stocks. The key is figuring out whether a name is a deliberate conviction call or just inherited from the benchmark.
Sarah MitchellWhat Top-Ten Breadth Tells You That Top-Five Concentration Misses
Top-five concentration is useful, but top-ten breadth often gives a better sense of how much room is left outside the headline names.
Sarah Mitchell