<span>Span Text</span>
<strong>What about me?</strong>
<span>Another One</span>

{
  $('span').wrapAll('<div class="new"></div>')
}

{
  const wrapper = new DOMParser().parseFromString('<div class="new"></div>', 'text/html').body.firstChild
  const spans = document.querySelectorAll('span')
  
  spans[0].before(wrapper)
  wrapper.append(...spans)
}