On May 14, 2021, Larry G. Swets, a Class A directors, notified management of Limbach Holdings, Inc. that he intends to transition off of Board of Directors and resign from the Board and all committees of the Board on which he serves at the earlier to occur (i) the time when the Company secures a suitable replacement for Mr. Swets or (ii) the end of this calendar year. Mr. Swets will be focusing more fully on other business interests, unrelated to Limbach, which create increasing business demands on his time.