Polymerizable composition for optical article and optical article

A polymerizable composition for an optical article, comprising:

• two or more (meth)acrylates;
• and
• a photochromic compound,
• wherein the two or more (meth)acrylates include at least component A,
• wherein the component A is a tri(meth)acrylate represented by the following Formula 4 with a molecular weight of 500 or more,
• where:
• R40, R41, R44, R45, R47 and R48 each independently represent an alkylene group,
• R43 represents an alkyl group,
• R42, R46 and R49 each independently represent a hydrogen atom or a methyl group,
• n1 represents a number of repetitions of groups represented by OR41 and is 2 or more,
• n2 represents a number of repetitions of groups represented by OR45, and is 2 or more,
• n3 represents a number of repetitions of groups represented by OR48 and is 2 or more, and
• wherein the (meth)acryloyl group content in the polymerizable composition for an optical article is 3.50 mmol/g or more and 4.00 mmol/g or less.