index.js

$('.btn-submit').each(function() {
  $(this).click(function(e) {
    e.preventDefault();
    console.log($(".annualized_comp_value").val());
  });
});

main.html

<td>
	<div class="input-group">
		<span class="input-group-btn">
			<button class="btn btn-default btn-submit" type="submit">
				<span class="glyphicon glyphicon-ok" aria-hidden="true"></span>
			</button>
		</span>
		<input type="text" name="annualized_comp_value" class="annualized_comp_value form-control">
	</div>
</td>