Dozens of demonstrators, some with Palestinian flags, chanted, "Amsterdam is saying no to genocide" and "Free Palestine."
The students, who unfurled a flag of the Palestinian territories from the roof of Leonardo's offices, said the company was supporting Israel.
Protesters urged equal military service for unity and Israel’s defense, rejecting exemptions.
Parents held signs saying, “Children say stop the genocide in Gaza,” while their young children colored in anti-Zionist, Gaza-themed coloring books.
Five protesters have been arrested overall in Saturday night demonstrations.
A Michigan man carrying fuel, a lighter, a flare gun, and an opinionated manifesto was arrested at the US Capitol on Election Day.
Protesters quickly mobilized Tuesday, with tens of thousands taking to the streets and blocking intersections and highways across the country.
Israelis had previously taken to the streets to protest Gallant's firing by Netanyahu in March 2023.
Protesters called for "Gallant Night II," referencing the night of huge protests following the attempted sacking of Gallant during the judicial reform.
Protests will be held from 3 p.m. to 6 p.m. on Monday, and then in shifts on Tuesday and Wednesday in three shifts, 9 a.m. to 12 p.m., then from 12 p.m. to 3 p.m., and finally from 3 p.m. to 6 p.m.