Latest research, educational guides, and news from the world of institutional investing.
Apple CEO Tim Cook has reported $1.21B in career Form 4 sales. His latest transactions in late 2025 included both Apple stock sales and a Nike board-related filing.
JPMorgan CEO Jamie Dimon has sold $461.7M in career Form 4 transactions but also bought $65.7M — making him one of the few mega-bank CEOs with significant open-market purchases on record.
Alphabet CEO Sundar Pichai has reported $794.9M in career stock sales per Form 4 data. His most recent filing from February 2026 covers January 2026 transactions.
Meta co-founder Mark Zuckerberg has reported $20.5B in career Form 4 sales, all executed through pre-arranged 10b5-1 trading plans. His most recent batch sold in October 2025.
UK's largest asset manager held $450.9B in Q4 2025 with Nvidia at 7.09% and Apple at 6.66%. The top-3 concentration of 19.3% is notably higher than comparable diversified managers.
Wells Fargo's Q4 2025 13F shows $549.1B across 6,616 holdings. Four ETFs (SPY, IVV, QQQ, ITOT) account for $53.8B — a 9.7% allocation to index wrappers that dwarfs the individual stock positions below.
Wellington Management held $570.7B across 1,878 positions in Q4 2025. Eli Lilly and Merck sit at #7 and #8, giving healthcare a 4.1% share of the top-12 — unusual for a fund this size.
UBS Group AG cut its SPY ETF position by more than half (from $27B to $12.3B) in Q4 2025 while growing its self-owned UBS stock to $6.8B — a restructuring that reshuffled the entire top-15.
Charles Schwab Investment Management’s Q4 2025 13F pairs mega-cap leaders like NVIDIA and Apple with a striking sleeve of in-house fundamental index ETFs, revealing how the manager mixes market-cap exposure with rules-based reweighting.
Invesco’s Q4 2025 13F shows a $652.20B disclosed portfolio led by NVIDIA, Microsoft, and Apple, but the bigger story is a broad book that has grown 76% since Q3 2023.
Citadel Advisors hit $666B in Q4 2025, up from $657B. The headline move: exiting a $43B QQQ position under CUSIP 04609e107 and opening a $36B replacement under 46090E103, while simultaneously ramping Netflix shares from 5.6M to 95.1M.
Northern Trust Corp’s Q4 2025 13F reveals a $784B portfolio with massive accumulation in Netflix (+883% shares) and ServiceNow (+400% shares), while the core remained anchored to NVDA, AAPL, and MSFT.
Susquehanna International Group’s Q4 2025 13F reveals an $868B portfolio dominated by put-hedged ETF positions, with a massive 857% increase in Netflix shares and new gold exposure via AGQ, IAU, and Royal Gold.
CrowdStrike CEO George Kurtz sold approximately $15M in CRWD shares across two transactions in early February 2026. The sales, tied to RSU tax withholdings, came after CrowdStrike posted record FY2026 results with $5.25B in ARR.
Fortinet co-founder and CTO Michael Xie exercised and sold $28M in FTNT stock on February 2, 2026, bringing his career dispositions to $5.84B. Despite showing zero directly-held shares per Form 4, Xie retains over 33 million shares through family trusts.
Sector rotation — when institutions shift capital between sectors — is one of the most over-claimed signals in 13F analysis. This guide shows how to identify real rotations and avoid false positives.
Stock detail pages on 13F Insight show which institutions hold a specific stock. This guide explains what the holder list means, how it's ranked, and what it can't tell you.
Every 13F holding reports three voting authority fields: sole, shared, and none. These numbers reveal how much control a filer actually has over the shares they report.
Form 4 transaction codes (P, S, M, G, A, F, C, J) tell very different stories about insider intent. This guide explains each code and why reading them wrong leads to bad conclusions.
Jeff Bezos transferred approximately 1.06 million AMZN shares through gift transactions (code G) in November 2025, worth roughly $245M at market prices.