Updated Apr 13, 2026 · 2187 articles
Insights
Research, news and field guides on institutional positioning. Powered by real SEC filings — 13F, 13D/G, Form 4.
Atlassian Co-Founder Scott Farquhar Sold $2.1M of TEAM Just Before Earnings — But the Ownership Story Is Bigger
Scott Farquhar sold about $2.06 million of Atlassian stock over two January 2026 trading days, yet 13G data still points to founder-level beneficial ownership at TEAM.
Alex RiveraNorthern Trust’s $784.38B 13F Is a Custody-and-Wealth-Management Map, Not a Pure Stock-Picker’s Book
Northern Trust’s Q4 2025 13F reported $784.38B in disclosed value, but the filing makes more sense as a window into a custodian bank and wealth manager’s client exposures than as a classic hedge fund portfolio.
Sarah MitchellGeode Capital Management’s $1.62T Q4 2025 Filing Reveals Fidelity’s Shadow Index Giant
Geode Capital Management’s Q4 2025 13F highlights how a behind-the-scenes Fidelity sub-adviser concentrated enormous benchmark-driven capital in Nvidia, Apple, Microsoft, and other mega-cap leaders.
Marcus ChenBank of America’s $1.37T 13F Put Only 12.9% in Its Top Five — Merrill’s ETF Machine in Plain Sight
Bank of America’s Q4 2025 13F looks less like a stock-picker’s book and more like Merrill wealth management at scale, with massive ETF sleeves in VTV, VUG, IEFA, and SPY keeping top-five concentration at just 12.9%.
Sarah MitchellFairholme Capital Q4 2025: Bruce Berkowitz's 80% Conviction in St. Joe Company
Fairholme Capital Management's $1.43B portfolio reveals extreme conviction, with real estate developer St. Joe Company (JOE) commanding over 80% of assets.
Marcus ChenWhy Position Sizing Matters More Than Just 'New Buys' in 13Fs
A hedge fund buying a new stock makes headlines, but true conviction is revealed in how a fund sizes its positions over multiple quarters.
Sarah MitchellDecoding 13F Options: How to Read Call vs. Put Ratios Like a Pro
Don't just look at the stock holdings. Discover how hedge funds use massive options books to signal leverage, hedging, or downside expectations.
Sarah MitchellZoom CEO Eric Yuan's Strategic Liquidity: A Look at $1.3B in Sales
Zoom founder Eric Yuan has systematically liquidated $1.3 billion in stock over his tenure. We explore why these 10b5-1 sales shouldn't worry long-term investors.
Alex RiveraNVIDIA CEO Jensen Huang's Systematic Sales Top $3 Billion
NVIDIA's Jensen Huang has executed over $3 billion in stock sales, but a deep dive into his derivative holdings shows he retains massive equity control.
Alex RiveraScion Asset Q4 2025: Michael Burry's Astonishing 80% Bet on Palantir
Michael Burry's Scion Asset Management revealed a highly concentrated 4-stock portfolio in Q4 2025, with Palantir making up over 80% of the assets.
Marcus ChenRenaissance Technologies Q4 2025: The $64B Quant Giant's Palantir Conviction
Inside Renaissance Technologies' massively dispersed Q4 2025 13F, highlighting their surprising $1.56B top position in Palantir.
Marcus ChenThird Point Q4 2025: Dan Loeb Balances PG&E Activism with NVIDIA Growth
Analyzing Dan Loeb's $7.27 billion 13F for Q4 2025, where distressed utility PG&E shares the top spot with AI leader NVIDIA.
Marcus ChenUnderstanding Institutional Cash-to-Equity Shifts Through the 13F Lens
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.
Marcus ChenHow to Use 13D/G Filing Dates as Trading Signals: A Practical Framework
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.
Sarah MitchellReading Between the Lines of 13F Amendments: What Revised Filings Reveal
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.
Marcus ChenThe Hidden Risks of Following Institutional Trades: Lag, Liquidity, and Position Sizing
A famous fund name on a 13F can be useful, but copying the trade blindly is where retail investors get into trouble. Here is how delay, liquidity, and sizing distort the signal.
Sarah MitchellHow Window Dressing Distorts 13F Data — And How to Spot It
Quarter-end portfolio cleanup can make a 13F look smarter than the manager really was. Learn how to spot window dressing before you mistake cosmetic buying for conviction.
Marcus ChenNomura’s New $19.23B SATS Position Dominated Its Q4 2025 13F
Nomura reported $75.14B in Q4 2025 13F AUM, but one new position — SATS 3.875 11/30/30 at $19.23B — accounted for 25.96% of the filing. That makes this a balance-sheet-style bank filing, not a plain-vanilla hedge fund portfolio.
Marcus ChenWhy Loomis Sayles’ Q4 2025 13F Jumped From $84.1M to $82.47B
Loomis Sayles, long associated with fixed income and the Dan Fuss legacy, suddenly reported $82.47B in Q4 2025 13F assets after showing just $84.1M in Q3. The filing looks less like an overnight risk binge and more like a reporting-footprint reset.
Sarah MitchellArista's AI Run Is Intact, but Co-Founder Kenneth Duda Just Sold Another $7.8M of ANET
Kenneth Duda's latest Arista sale landed after a strong Q4 report, a higher 2026 outlook, and a fresh push to sell AI networking as the company's next growth engine.
Alex Rivera