Michael Arthur Grimmer

Michael Arthur Grimmer passed peacefully from this earth on May 3, 2025 at home in Longmont, CO. He was born in Detroit MI on June 9, 1958 to Arthur and Johanna Grimmer and was raised in Saint Clair Shores, Michigan. Mike spent his career in the financial services industry, working in Operations in several stock brokerage firms in Detroit, Chicago, Palo Alto CA, Washington DC, Silver Spring, MD and St. Louis, MO. He attained widespread knowledge in his field and was well respected as a co-worker and mentor. He was a proud father and grandfather and cherished his family. He also had a love/hate relationship with the game of golf and spent the last few years as the volunteer Head Marshal at Ute Creek Golf Course in Longmont, where he had the second of his two holes in one. He loved a wide variety of music from classical to progressive rock and especially enjoyed listening (sometimes loudly) with his son. He never stopped being a Tigers and Lions fan. Mike is grieved and celebrated by his wife of 28 years, Wendy, daughter Sarah and son-in-law Allan, grandson Caleb, and son Michael. He will be sorely missed by his mother, Johanna, sisters Kathy (Rob) and Lisa, and brothers Joe (Debbie) and Steve (Debbie), as well as many cousins, nieces, nephews and friends, most notably Gordon and Eileen Fretz, friends forever. Mike often spoke about his good life and learned to seize the moment. One of his favorite phrases was a lyric from Jim Morrison: “The future’s uncertain and the end is always near.”

Visitation will be from 3:00-8:00 p.m. on Monday, May 12, 2025 at the Rewalt-Peshek Funeral Home. A Funeral Mass will be held at 10:30 a.m. with a visitation from 10:00 a.m. until the time of Mass on Tuesday, May 13, 2025 at St. Joseph’s Catholic Church, 57575 Romeo Plank Rd., Ray, MI 48096.

In lieu of flowers, the family would appreciate donations to Via Mobility in Longmont, Colorado at https://viacolorado.org/give/ or Tru Community Care at www.trucare.org/make-a-donation-to-tru/