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Congratulations are in order for Kimora Lee Simmons and Tim Leissner.

The model-entrepreneur, 39, and her financier husband, 45, have welcomed their first child together – son Wolfe Lee Leissner – PEOPLE reports.

“We are filled with joy, adoration and gratitude as we celebrate the birth of our son,” the proud parents gush in a statement.

No further information – including the baby’s birth date – has been announced at this time.

Mom and baby are doing well, and Leissner is “ecstatic,” according to the rep.

Simmons is already mom to daughters Ming, 15, and Aoki, 12, with ex-husband Russell Simmons, as well as 5½-year-old son Kenzo with Djimon Hounsou. Also, Leissner is dad to two daughters, ages 9 and 12, from a previous relationship.