Ok thanks. I thought there would have to be a clause in the constitution or other to pass the copyright from the creator to the company?
Nah.
A shareholder contributing IP is not much different to a shareholder who contributes
money, or expertise, or shareholder-owned equipment, to the company.
These arrangements are usually dealt with in a Shareholders Agreement.
A Shareholders Agreement is the third document,
after the Constitution and the Replaceable Rules,
that should be created at start-up.
People often forget, or mistakenly decide that it is unnecessary.
In the absence of a Shareholders Agreement, or any other evidence,
it will typically be a question of intention.
In other words, if a person, say, writes code for a website,
or maybe designs a logo for a company in which they are
a shareholder (as distinct from employee),
then, absent anything to the contrary, the presumption will be
that the author intended copyright in that work to vest in the company.
Where this can become a thing is when a shareholders creates a company's website,
then has a falling out with the company, and tries to take down the website
based on a claim that they hold copyright in the code and/ or the design.
A person in that situation can often be mistaken about where the copyright vests.