Hi Customer (name blocked for privacy):
Pennsylvania's Department of State has all their corporate forms available online by clicking here. You won't find the 13d here, but it a useful site for many state corporate documents.
Of course, the SEC 13d form is not a state form but is a federal form. It is Form ID #1746 (see here), and the SEC provides their online forms here.
Unfortunately, I did not see 13d or Form 1746 on the list of forms provided online. It is also referred to as "OMB Number: 3235-0145," and like you, I was unable to find a blank one online or instructions for filing one online.
You can request documents from the SEC at this email address: certified@sec.gov . Their general info email address is: publicinfo@sec.gov .
Sorry I couldn't come up with anything more helpful!
- Joe
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