<human>: Give me a shortened version of the text

For the last three years I've been working for a small biotech company getting paid a really low wage. About six months ago I asked for a new position and to transfer departments (they needed help). My transfer was approved but I did not receive a raise. I thought huhhh, this is in no way a lateral transfer but I'll give it a few months, maybe I need to prove myself first. 

Over the past six months I had far exceeded my department director's expectations by developing a new product in addition to several other projects. My annual review was fantastic (5/5) and he recommended me for a "significant" raise. I asked for a 30% raise because that would place me on the low side of my new position's pay range. 

Now about a two months ago the small biotech company I'm working for was bought out by a huge biotech company. About a week ago I asked if my raise had been approved. It was not... surprise! I was told I asked for too much and that I might be able to get a 10% raise. Now in my opinion what I'm currently getting paid is a joke and I believe it to be unethical on this company's part. Based on my research (glassdoor & salary.com), I should be making $15,000 a year more than I'm currently making. I'm pretty certain this large biotech company pays that much or more for people with my job description. 

My question is what can I do? I'm a female and I live in CA. A new fair pay law recently passed that says females and males in similar roles need to be making similar wages. I want to know if I can confidently approach my boss/HR with this law? Any advice would be appreciated! I know I should probably quit but I've been boned for too long to just roll over.
<bot>: i transferred to a higher responsibility position with no raise. Six months later I ask for fair pay (30% raise) and was denied. What can I do?