Histogram of holdings

[gaming-hacker]

Hi,
Nice code, what I want to be able to do is initialize a database with the latest quarter of 13F-HR filings and on a rolling basis once a week, update the database. What I want in the end is a histogram of the holdings, to see what most hedge hold and what are the ones not as popular. How easy to hack your code to do this?

Eventual data might looks like this from 500 sample filings

AAPL 400
MSFE 490
SPY 390
...
GE 100
etc