Market Insights

Nike co-founder Phil Knight has sold $3.1 billion in NKE stock over 13,182 transactions since 2003, making him one of the most prolific insider sellers in corporate history. Recent Form 4 filings show continued conversions and gifts in early 2026.

The Lilly Endowment, one of America's largest charitable foundations, has systematically sold over $111 billion in Eli Lilly shares since 2003. This is not insider pessimism—it's foundation law in action.

Salesforce's founder and CEO has executed nearly 29,000 transactions over two decades, making him one of the most aggressive insider sellers in enterprise software. His latest activity: January 2026 option exercises.

Both co-founders of Atlassian executed synchronized stock sales on the same day, unloading over $500M each in TEAM shares while retaining significant stakes as 10% owners.

Tesla's CFO sold 2,264 shares on March 6 at $397.03 per share, reducing his stake by 11% to 18,106 shares. The sale comes amid mixed Q4 earnings and a stretched valuation.

The Walton Family Holdings Trust executed 425,962 shares of Walmart across February 23-25, 2026, totaling $159.8M. The pattern reflects ongoing systematic rebalancing, not a bearish signal.

Netflix CFO Spencer Neumann sold 57,260 shares for $5.47 million on February 27, 2026, executing a pre-scheduled trading plan adopted in October 2025. The sales came after Netflix's strong Q4 earnings beat and stock surge.

Lisa Su, AMD's Chair, President & CEO, executed a coordinated multi-tranche sale of 128,000 shares on December 10-11, 2025, netting $28.2M. The pattern suggests execution of a pre-arranged 10b5-1 trading plan.

Learn how to interpret insider buying transactions on Form 4 filings. Discover what makes a buy meaningful, how to filter noise, and how to use insider trading data to inform your investment decisions.

Learn how institutional investors use portfolio concentration as a strategy, and how to spot concentrated vs. diversified portfolios on 13F Insight.

Renaissance Technologies’ Q4 2025 13F reveals a dramatic Alphabet exit (-89% to -94%), an 85% NVIDIA trim, and a 2,545% NFLX build. But the tiny $64.5M AUM confirms this is NOT the Medallion Fund—here is what the public portfolio actually signals.

Cliff Asness’s AQR Capital disclosed $190.6B across 16,934 holdings in its Q4 2025 13F—one of the broadest institutional books in the market. Massive momentum-driven adds in NOW (+953%), NFLX (+691%), and CMG (+342%) reveal a factor engine firing on all cylinders.

A calendar guide to 13F filing deadlines, amendment windows, and how to plan your institutional holdings research around quarterly filing season for maximum efficiency.

Wellington Management’s Q4 2025 13F shows aggressive conviction in DoorDash (+593%) and Netflix (+560%), while slashing Boeing and Exact Sciences. Inside the moves of a $571 billion active powerhouse.

Point72 Asset Management’s Q4 2025 13F reveals a $1.56B new QQQ position alongside dramatic increases in UNH (+1,201%), PEP (+965%), and GLD (+891%) — a dual signal of tech conviction and defensive hedging from Steve Cohen’s team.

A step-by-step guide to setting up and using 13F Insight watchlists to track institutional filers and stocks. Learn what to add, how to time your research around filing season, and how to interpret watchlist activity.

T. Rowe Price’s Q4 2025 13F reveals a +686% surge in Netflix shares alongside a sprawling 4,500-position book. We break down the conviction moves hiding inside one of America’s largest active managers.

Bridgewater Associates doubled its AUM to $27.4B in Q4 2025, anchored by a massive $2.87B iShares S&P 500 ETF position. With 290 new positions and 281 exits, the post-Dalio team is rewriting the playbook.

Millennium Management’s Q4 2025 13F filing shows $237.8M in public equity holdings — a tiny slice of the firm’s $60B+ AUM — with 145 new positions and 145 exits reflecting the multi-pod hedge fund’s rapid-fire rotation strategy.