Latest research, educational guides, and news from the world of institutional investing.
Kavitark Ram Shriram, one of Google's earliest investors and an Alphabet board director, has sold $2.16 billion in GOOG stock across 2,385 insider transactions since 2004.
L. John Doerr, Kleiner Perkins chair and longtime Alphabet director, has filed 3,078 insider transactions including $1.58 billion in sales across Google and 14 other companies.
Sergey Brin, co-founder and director of Alphabet, has filed 10,633 insider transactions totaling $25.3 billion in sales — the largest insider sell total in the tech sector.
Ronald Tutor, longtime leader of construction giant Tutor Perini, has filed 1,809 insider transactions totaling $578 million in sales and $4.4 million in purchases across the company he led for decades.
Douglas Lebda, founder and former CEO of LendingTree, has filed 1,059 insider transactions totaling $273 million in sales and $8.7 million in purchases. His most recent filing is from February 2026.
Balu Balakrishnan, President and CEO of Power Integrations, has filed 1,975 transactions selling $179 million in POWI stock — one of the most prolific semiconductor insider sellers by filing count.
James Foster, longtime chairman and former CEO of Charles River Laboratories, has filed 3,711 insider transactions since 2003, selling $266 million and purchasing $2 million in CRL stock.
Joshua Boger, founder and former CEO of Vertex Pharmaceuticals, has filed 1,769 insider transactions totaling $184 million in sales, spanning the company's transformation from biotech startup to cystic fibrosis franchise leader.
Michelle Zatlyn, co-founder and president of Cloudflare, has sold $551 million in NET stock since the company's 2019 IPO, making her one of the most prolific insider sellers in the cybersecurity sector.
Debra Cafaro, the longtime CEO of healthcare REIT Ventas, has sold $280 million across 2,617 insider transactions since her tenure began, making her one of the most active CEO sellers in the REIT sector.
Martin Roper, longtime president of Boston Beer Company, has the highest transaction count among SAM insiders with 2,950 filings and $284 million in career sales since the Sam Adams maker went public.
James Hagedorn, chairman of Scotts Miracle-Gro, received a 142,315-share stock award in January 2026 while maintaining a steady cadence of quarterly awards and transfers across 2,207 career filings.
The retail dynasty heir has filed 2,872 insider transactions across 4 companies, selling $753 million and buying $187 million. Recent filings show large stock awards at AEO and Designer Brands.
Fred Luddy, founder of ServiceNow, has filed 1,798 insider transactions totaling $1.28 billion in sales. But his recent filings show almost no selling — just tiny award-related dispositions and gifts.
MPS CEO Michael Hsing sold roughly $15.3 million in MPWR shares on November 12, 2025 at prices near $970 per share, part of a two-decade selling program totaling $750 million.
Intercontinental Exchange CEO Jeffrey Sprecher sold 280,000 shares worth $43 million on February 18, 2026, continuing a systematic selling program that has totaled $777 million across 1,901 transactions.
Phil Knight's insider filing record spans 13,182 transactions since 2003 — the highest transaction count of any single insider in our database. Recent activity shows Class B to Class A conversions and gifts, not direct sales.
The 'Cable Cowboy' has filed 2,004 insider transactions since 2003 across his Liberty empire, selling $1.26 billion and buying $402 million while restructuring one of media's most complex corporate webs.
Scott Cook, Intuit's founder, sold roughly 75,000 shares on December 30, 2025 at $669–$674 per share, netting about $50.5 million in one day. His career sell total now stands at $2.35 billion.
After selling $1.19 billion in Moderna shares since 2008, CEO Stephane Bancel reversed course and bought 160,000 shares at ~$31 in March 2025 — a rare bullish signal at multi-year lows.