Thanks guys, did a hot soak in the tub with the hottest water that I have, which is about 120F.  Then I decided to give it a near boil on the stove.  And now I gave it a hot dry in the dryer.  It's almost done.  Let's see how it is now.  I have some room to spare throughout.

Edit:  …. and done.  Unfortunately, I failed to take before measurements, haha  ::)  However, I definitely got some shrinkage all around.  Main issue for me was the sleeves and cuffs, both of which are a little smaller.  Shoulders and torso also came in a bit.  Noticeably better fit for me now.

@Mizmazzle any update on the pre-post measurements?  I just received the same shirt and hoping that I can shrink the sleeve length and cuff width a bit.  Curious if you found the shirt to shrink at all.  I'm inclined to try hot drying mine as well.