Updated May 13, 2026 · 2187 articles
Insights
Research, news and field guides on institutional positioning. Powered by real SEC filings — 13F, 13D/G, Form 4.
ROKU CEO Sells $12.8M Class A; 16M Class B Stake Untouched
Roku founder and CEO Anthony Wood cleared 125,000 Class A shares across 11 Form 4 transactions in March and April 2026, totaling roughly $12.8 million. The Class A line on the latest filing reads zero — but the Class B / derivative line still reports 16.27 million shares.
Alex RiveraCharles Schwab Trims $22M of SCHW; 56M Class B Stake Intact
Founder Charles R. Schwab sold roughly $22.0 million of SCHW common stock across five Form 4 transactions in the last week of April and first day of May 2026. The headline number is small relative to his 110M+ share total — the more interesting read is what stayed put.
Alex RiveraApple Ships iOS 26.5 RCS Encryption: AAPL Holder Read
Apple shipped iOS 26.5 with end-to-end encrypted RCS messaging and Apple Maps changes. The product news matters for users; for AAPL holders, the more interesting read is the institutional ownership stack underneath the world's most-held single stock.
Alex RiveraReading the 13F Tail: Why Top-500 Isn't the Full Portfolio
Most 13F analytics platforms display the top-500 positions per filer. The tail beyond position 500 is where new themes, small-cap conviction, and quiet rotations show up before they reach the headline holdings list.
Sarah MitchellETF Lines in 13F Filings: Client Wrap vs Active Bet
When a 13F filer reports SPY, IVV, or VOO in their top 10, it can be a programmatic wealth-channel client wrap — or a deliberate active bet. This guide shows how to tell the difference.
Sarah MitchellReading 13F Position Changes: Share Count vs Dollar Value
A 13F position can show a 50% dollar-value increase from share buying, from price appreciation, or both. This guide explains how to separate the two — and why share-count change is the cleaner signal for institutional conviction.
Sarah MitchellReading 13F Cluster Trades: When Two Managers Buy the Same Name
When two or more top-tier active managers build a meaningful position in the same name in the same quarter, the institutional read is different from any single filing. This guide explains how to read a cluster signal — and when to ignore one.
Sarah MitchellWells Fargo Q1 2026 13F: NFLX +892%, HOOD +277%, AMD -64%
Wells Fargo's Q1 2026 13F reports $467.90B in top-500 holdings — a nearly flat aggregate that hides a steep NFLX/NOW/HOOD build and a 64% AMD trim under the surface.
Marcus ChenInvesco Q1 2026 13F: NFLX +823%, BDX +299%, .89B AUM
Invesco grew its top-500 13F book to $544.89B in Q1 2026, up 2.8% QoQ. Behind the headline: an 823% share increase in Netflix, 299% in Becton Dickinson, and trims to ORCL/CRM/LITE.
Marcus ChenHess Sells $36M of Chevron Stock Post-Merger — CVX Director Trim
John B. Hess, the former Hess Corp CEO turned Chevron director after the 2024 merger closed, sold roughly $36M of Chevron stock across three lots on 2026-05-06. His Form 4 reports 658,045 shares remaining plus the 8.58% beneficial stake disclosed on the latest 13G/A.
Alex RiveraMorningstar Founder Mansueto Trims Daily; Still 37.5% Owner
Joe Mansueto sold another $3.3M of MORN this week through small daily lots — but the founder still controls 37.5% of Morningstar via 14.9M shares per the latest Schedule 13G/A.
Alex RiveraRivian Ships In-Car AI Assistant: Who's Still Long RIVN
Rivian rolled out Rivian Assistant and Unified Intelligence software for in-cabin voice control. The 13F holder base around the launch tells you which capital is actually expressing conviction in the EV maker — and which is hedged inventory.
Alex RiveraMicrosoft Patch Tuesday Fixes 120 Flaws: Who Owns MSFT
Microsoft shipped 120 fixes in its May 2026 Patch Tuesday with no in-the-wild zero-days. The real signal for retail investors is who is sitting behind the $3T market cap on the next disclosure cycle.
Alex RiveraCUSIP Basics: The 9-Character Security ID for 13F Readers
CUSIP is the 9-character identifier that anchors every 13F filing line, every 13D filing, and every Form 4 transaction. Tickers can change, company names can rename, but a CUSIP stays put. Here's how the format works, why mixed-case CUSIPs matter, and what to watch for when joining datasets.
Sarah Mitchell13F-HR/A Amendments: What They Fix and What They Signal
A 13F-HR/A is an amendment to a previously-filed Form 13F-HR. Amendments are common, mostly mundane, and occasionally tell you something the original filing missed. Here's how to read one and decide whether the underlying position change is material.
Sarah MitchellReading 13F Voting Authority Columns: Sole, Shared, None
Every Form 13F-HR line item carries three voting authority columns: sole, shared, and none. The sum equals the position's share count, but the split tells you whether you're looking at an investment manager, a custodian, or a sub-advised pool. Here's how to read each column and what they imply about who actually controls the vote.
Sarah MitchellDodge & Cox 2025Q3: $185B Value Book Across 219 Names
Dodge & Cox filed its 2025Q3 13F at $185.33 billion across 219 positions. The book is the textbook expression of disciplined value: no top holding exceeds 4.3% weight, and the top 10 sit at just 27% of the portfolio.
Marcus ChenSanders Capital 2025Q3: $81B Across 47 Names, TSM at Top
Lewis Sanders' Sanders Capital filed a 2025Q3 13F at $81.29 billion across 47 positions. The top five names take 43% of the book. The most striking allocation: TSM at 11.1% portfolio weight — larger than the GOOG, META, or MSFT stake.
Marcus ChenLilly Endowment 2025Q4: A $99B Single-Stock Bet on LLY
Lilly Endowment Inc filed a 2025Q4 13F-HR reporting a single position: 92.2 million shares of Eli Lilly worth $99.08 billion. The portfolio is, by design, the founder's company stock. The QoQ swings are pure share-price translation.
Marcus ChenEric Yuan's ZM April Print: $10M Across Exercise, Sell, Convert
Zoom founder Eric Yuan filed a 20-transaction Form 4 sequence across April 13-14, 2026 mixing exercises, conversions, tax withholdings, and open-market sales for roughly $10.1 million in proceeds. The codes mix says this is a compensation event, not a directional bet.
Alex Rivera