Insider ownership includes shares owned by a company’s officers and directors and any beneficial owners of a class of the company’s equity securities.

The data is gathered from a wide variety of public sources, including annuals, proxies, registration statements, press releases and direct insider reporting. The data is aggregated and updated once per month.

Coverage

Note that complete ownership data for these series begins around December 2004. Some data exists prior to that time in the database, but it has more holes and is not as consistently available across companies.

Timeliness

Ownership data is very fluid. A single insider transaction can occur on any day. Since we only expose aggregate data, though, an arbitrary period is used to snapshot the data. For insider transaction data we use monthly snapshots. These are done at the end of each month.There are two notable exceptions: Insider#Own and Insider%Own factors. These factors are calculated daily by us and we then snapshot it once a week for historical simulations.

Factors

Factors are used directly in rules and ranking nodes and do not require further parameters. See the first example for a rule using factors.

Functions

Functions require parameters, contained in attached parentheses. Insider functions are generally displaying the sum of the transactions or shares for a number of months, as indicated in the name of the function. Each of these functions has an offset, and that offset is in months.

Examples

To look for companies with more shares purchased than sold in the last six months, use:

InsNetShrPurch > 0

To look for companies with more insider purchase transactions in the most recent month compared to the month prior, use:

InsiderBuyTran1M(0) > InsiderBuyTran1M(1)

To look for companies with fewer number of shares sold in the most recent month as compared to the 12-month average, use:

InsiderSellSh1M(0) < LoopAvg("InsiderSellSh1M(CTR)",12)

To look for companies that had at least 33% of the last three-month’s insider purchases happening within the most recent month, use:

InsiderBuySh1M(0) / InsiderBuySh3M(0) > .33