Thomson Reuters Ownership Datasets (via WRDS)Formerly called CDA Spectrum, Thomson Reuters Ownership datasets consists of 3 parts:
(1) mutual fund holdings 1980+ for US & Canadian Securities: All registered mutual funds filing with the SEC plus 3,000 global funds. Includes NYSE/AMEX/NASDAQ, Toronto and Montreal common stocks; (2) institutional 13(f) common stock holdings and transactions 1980+; (3) insider filing data 1986+ divided into the following major parts: (a) Table 1 -- transaction and holdings information, (b) Table 2 -- open market derivatives transactions as well as information on the award, exercise, and expiration of stock options (this files starts in 1996), (c) Proposed Sale data derived from Form 144 (this file starts in 1996), (d) Average Returns file contains the information relating to how a stock has historically performed following an insider's transactions. The file includes average 3-month and 6-month buy and sell returns as well as the number of historic buy and sell decisions for each individual insider.