Updated May 23, 2026 · 2187 articles
Insights
Research, news and field guides on institutional positioning. Powered by real SEC filings — 13F, 13D/G, Form 4.
A Fund's Biggest Holding vs Its Biggest Buy: Read Both
A fund's largest position often got there by appreciating, not by recent buying. To see where a manager's fresh conviction is, look at its biggest add instead. The two answer different questions.
Sarah MitchellWhy 'No Change' in a Fund's 13F Is Its Own Signal
Readers hunt 13Fs for the big buys and sells, but for a low-turnover manager the holdings left untouched can be the most informative part of the filing. Here is how to read inactivity.
Sarah MitchellWhy a Long-Short Fund's 13F Shows ETFs and Hides Shorts
When a famous stock-picker's largest reported holding is an S&P 500 ETF, it usually means you're reading a long-short fund's filing - which omits its shorts entirely. Here is how to read it.
Sarah MitchellWinslow Capital Q1 2026: Cutting Microsoft and Amazon
Winslow Capital cut Microsoft 29% and Amazon 33% in Q1 2026 while adding Apple, Alphabet, and Broadcom and holding Nvidia flat - a $25.7B concentrated growth book re-ranking the megacaps.
Marcus ChenHotchkis & Wiley Q1 2026: A Deep-Value Bet on Workday
Hotchkis & Wiley raised Workday 58% to its top holding in Q1 2026 while trimming Apache, F5, and Citigroup - a $32B deep-value shop rotating into beaten-down software.
Marcus ChenGotham Q1 2026: Why Greenblatt's Top Holding Is an ETF
Gotham Asset Management's largest 13F position is an S&P 500 ETF at 21% of the book - a window into how a long-short value manager's filing differs from a long-only fund's.
Marcus ChenEagle Capital Q1 2026: Big Bets on MercadoLibre and SAP
Eagle Capital raised MercadoLibre 91% and SAP 89% in Q1 2026 while holding its concentrated US core flat - a $29.8B quality manager reaching abroad for growth.
Marcus ChenBaron Capital Q1 2026: Still All-In on Tesla at 13%
Baron Capital held its giant Tesla stake flat at 13.4% of the book in Q1 2026 while adding to Gartner and Guidewire - a $33B growth book built on long-term conviction.
Marcus ChenTim Cook's April 2026 AAPL Sale: An RSU Vest, Not a Signal
Apple CEO Tim Cook sold $16.5 million of AAPL on April 2, 2026 under a prearranged 10b5-1 plan - the net shares from a routine annual RSU vesting, not a discretionary bet. He still holds about 3.3 million shares.
Alex RiveraWhen a Fund Buys a Whole Sector at Once: Macro Bets
A single new position can be a stock pick. But when a manager boosts three or four names in the same sector in one quarter, it usually signals a top-down macro view. Here is how to spot it.
Sarah MitchellWhy Founder Selling After an IPO Lockup Isn't a Red Flag
A founder selling millions of dollars of stock months after an IPO looks alarming, but it is usually routine diversification of concentrated pre-IPO equity. Here is how to check before you react.
Sarah MitchellWhy a Hot IPO's 13F Holders Are Mostly Market Makers
Open the holder list of a newly public, heavily traded stock and you will often see Jane Street, Citadel, and Susquehanna near the top — not long-only funds. Here is why, and what it does and doesn't tell you.
Sarah MitchellConnor Clark & Lunn Q1 2026: A Big Canadian Energy Push
Connor, Clark & Lunn raised Enbridge 76%, Suncor 48%, and TC Energy 35% in Q1 2026 while holding its bank core steady - a $43.4B Canadian manager tilting hard into energy infrastructure.
Marcus ChenAristotle Q1 2026: Adding Williams-Sonoma, Cutting Parker
Aristotle Capital raised Williams-Sonoma 22% and cut Parker Hannifin 22% in Q1 2026 while holding Alphabet and Microsoft flat - a steady, low-turnover $47.8B value book.
Marcus ChenWCM Q1 2026: A Global Quality-Growth Book Tilts to Asia
WCM Investment Management raised its Sea Ltd stake 30% in Q1 2026 while anchoring on Taiwan Semiconductor and ICICI Bank - a $43.8B global quality-growth book leaning into international compounders.
Marcus ChenHolocene Q1 2026: Cutting AI Winners, Buying the Rotation
Holocene Advisors cut Nvidia 30% and Tesla 36% in Q1 2026 while piling into Amazon, Danaher (+330%), Exxon, and GE Vernova — a fast-rotating $41B hedge fund pressing a contrarian view.
Marcus ChenZoom Founder Yuan Sells $7M ZM Amid AI Reacceleration
Zoom founder Eric Yuan sold about $7 million of ZM in April 2026 through a convert-and-sell, keeping roughly 20.75 million shares, as the company's AI Companion adoption surged and growth began reaccelerating toward a $5 billion target.
Alex RiveraCoreWeave Cofounder McBee Sells $32M CRWV Block
CoreWeave co-founder Brannin McBee sold $32 million of CRWV in a single late-April 2026 block, his largest disclosed sale, even as the Nvidia-backed AI cloud posted a record quarter and a near-$100 billion backlog. He still holds a 4.1% stake.
Alex RiveraCrowdStrike CEO Kurtz Trims $5M CRWD Near Record Highs
CrowdStrike founder George Kurtz sold roughly $5 million of CRWD in a steady mid-May 2026 drip near record highs, weeks after the company crossed $5.25 billion in annual recurring revenue. The Form 4 cadence points to a plan, not a pivot.
Alex RiveraWhen a Fund's 13F History Shows Assets Vanishing
A fund's reported assets can appear to collapse and then snap back a few quarters later. Usually that is not a real swing — it is a late or incomplete filing. Here is the tell.
Sarah Mitchell