Donald E. Weeden
Donald E. Weeden "is on the Board of Directors having previously served as its Chairman. Mr. Weeden relinquished operational oversight of the firm to Barry Small when Mr. Small was appointed CEO of Weeden in 1995.
"In the sixties and seventies Weeden & Co. was regarded as the leader in The Third Market. Mr. Weeden served on several committees involved in market structure including the Composite Tape Committee, Consolidated Quotation Committee, the Intermarket Trading System Committee and the SEC's National Market Advisory Board.
"In 1959 he was a founder of National Semiconductor Corporation and a Director from 1962 until 2000. Subsequent Silicon Valley venture investments included Cymer Laser, Cadence Design, and SemEquip. Mr. Weeden has also been an active investor in high technology ventures related to the securities industry including Instinet, Autex and LIMITrader. Mr. Weeden has a B.A. in economics from Stanford University. From 1952 to 1956 Mr. Weeden served in the United States Air Force.
"Mr. Weeden recently completed a book titled Weeden & Co., The New York Stock Exchange and the Struggle Over A National Securities Market." 
"Prior to taking over as Executive Director of the Weeden Foundation six years ago, Don Weeden had a nearly 25-year career in the international population and economic development field, serving in various field and management positions for Columbia University, International Planned Parenthood Federation, and other non-governmental organizations devoted to increasing access to family planning services. He became a specialist in South and Southeast Asian population issues, where he lived and worked for 20 years. He has also worked in Mexico, Eastern Europe, and Sub-Saharan Africa.
"The Weeden Foundation, based in New York City, supports a wide range of programs that aim to preserve biodiversity, nationally and internationally. Don is currently the Co-chair of the Consultative Group on Biological Diversity’s Land and Freshwater Conservation Working Group, and is a member of IUCN’s Mountain Biome group.
"The Foundation’s population program, initiated over 20 years ago to address both international and domestic population growth, continues to support high leverage advocacy projects that seek to influence policy makers and opinion leaders. The program’s primary domestic population objective is for the U.S. to follow the recommendations of President Clinton’s Council on Sustainable Development by adopting a national policy to deal effectively and equitably with all sources of U.S. population growth, including immigration. The Foundation also supports a program to promote sustainable consumption in the U.S. Don currently sits on the Steering Committee of the Environmental Grantmakers Association’s working group on Sustainable Production and Consumption." 
"He has also worked in Mexico, Eastern Europe, and Sub-Saharan Africa. Don has a Masters in Population Planning (Public Health) from the University of Michigan.
- Consultative Group on Biological Diversity’s Land and Freshwater Conservation Working Group – Co-chair
- Steering Committee of the Environmental Grantmakers Association’s Working Group on Sustainable Production and Consumption—Member
- Futafriends, a US-based NGO that works for the protection of the Futaleufu River, Chilean Patagonia—Board of Directors
His father is Alan Weeden.