Henningsen was selected by the
Denver Broncos in the sixth round, 206th overall, of the
2022 NFL draft. He appeared in all 17 games as a rookie. He finished with one sack and 21 total tackles. In the 2023 season, he appeared in all 17 games once again and had 19 total tackles and two passes defended. On August 27, 2024, Henningsen was waived by the Broncos. The next day, he was re-signed to the Broncos' practice squad. He signed a reserve/future contract with Denver on January 13, 2025. Upon suffering an
torn Achilles during a joint practice with the
San Francisco 49ers, Henningsen was designated as waived/injured on August 10, 2025. He reverted to injured reserve the day after, ruling him out for the entire
2025 season. On March 11, 2026, Henningsen signed a one-year extension with the Broncos. ==Personal life==