The Wikipedia article is missing another case. A rock taken by Apollo 17 from Taurus-Littrow was gifted by Richard Nixon to Portugal in 1973. It was in exhibition at the Lisbon Planetarium but got stolen 11 July 1985.

https://www.jn.pt/nacional/portugal-teve-uma-rocha-lunar-mas...

So next time some suspicions character in Lisbon, proposes to sell you a piece of the Moon...it might be real.