Updated May 23, 2026 · 2142 articles
Insights
Research, news and field guides on institutional positioning. Powered by real SEC filings — 13F, 13D/G, Form 4.
When 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 MitchellWhy a Fund's 13F Value Can Fall Without Selling a Share
A fund's reported 13F value can rise or fall even when it never trades — price does the work. Here is how to tell mark-to-market moves from real buying and selling.
Sarah MitchellFayez Sarofim Q1 2026: A $39B Book That Barely Moves
Fayez Sarofim held nearly every top position flat in Q1 2026 — Apple, Microsoft, Philip Morris, Exxon — adding only to Nvidia, as its 13F book eased 6.2% to $39.08B. A study in low-turnover conviction.
Marcus ChenBrown Advisory Q4 2025: Trimming Big Tech, Holding Payments
Brown Advisory cut Amazon 18%, Nvidia 16%, and trimmed its megacap-tech book in Q4 2025 as reported 13F value fell 6.9% to $70.51B, while holding Visa, Mastercard, and TSMC roughly flat.
Marcus ChenUTHR CEO Rothblatt Sells $5M Stock After Pipeline Wins
United Therapeutics founder Martine Rothblatt exercised long-dated options and sold $5.4 million of UTHR on May 21, 2026, days after back-to-back late-stage trial wins that underpin the company's path to $8 billion in peak revenue.
Alex RiveraDatadog Cofounder Le-Quoc Sells $9M DDOG After Raise
Datadog co-founder and CTO Alexis Le-Quoc sold roughly $9 million of DDOG on May 18, 2026, just weeks after the company posted its first billion-dollar quarter and lifted its 2026 revenue outlook on AI observability demand.
Alex RiveraRoku CEO Wood Sells $10M ROKU, Keeps 16M Class B Shares
Roku founder Anthony Wood sold roughly $10 million of ROKU on May 11, 2026 through a convert-and-sell, but his Form 4 shows he retains 16.2 million Class B shares and the voting control that comes with them — just as Roku swung to profitability.
Alex RiveraMonolithic Power CEO Hsing Sells $59M as MPWR Tops $1,500
Monolithic Power founder Michael Hsing sold 40,000 MPWR shares for $59.3 million on May 18, 2026, near record highs, days after AI data-center demand drove enterprise revenue up nearly 98% year over year.
Alex RiveraCloudflare CEO Prince Sells $33M in NET Amid AI Pivot
Cloudflare co-founder Matthew Prince sold roughly $33 million of NET stock across three sessions in May 2026, days after the company cut 20% of staff to chase an AI-first model. The Form 4 cadence — and his retained 7%+ stake — tell the fuller story.
Alex RiveraArista CEO Ullal Sells $120M in ANET as AI Outlook Rises
Arista Networks chief Jayshree Ullal sold more than $120 million of ANET stock across April 2026 even as the company lifted its 2026 AI networking forecast to $3.25 billion. Here is what the Form 4 cadence reveals.
Alex Rivera