Welcome to the Forum, Jeremy!
I hope you will find the answers you are looking for.
Technically, yes, those are the councils that we refer to as "the ecumenical councils." However, there are a couple of subsequent councils which are binding for Orthodox and which would fulfill the technical definition of an ecumenical council, even if they are not typically referred to as such. For example, the Palamite synods of 1341, 1347, and 1351, held in Constantinople.
Are those three Palamite synods the only others that are binding besides the seven ecumenical councils? What I'm really trying to ascertain is what all the binding councils are, so I'll be able to research exactly what the Orthodox are required to believe.
This is what we "believe":
The Nicene CreedI believe
in one God, Father Almighty, Creator of
heaven and earth, and of all things visible and invisible.
And in one Lord Jesus Christ, the only-begotten Son of
God, begotten of the Father before all ages;
Light of Light, true God of true God, begotten,
not created, of one essence with the Father
through Whom all things were made.
Who for us men and for our salvation
came down from heaven and was incarnate
of the Holy Spirit and the Virgin Mary and became man.
He was crucified for us under Pontius Pilate,
and suffered and was buried;
And He rose on the third day,
according to the Scriptures.
He ascended into heaven
and is seated at the right hand of the Father;
And He will come again with glory to judge the living
and dead. His kingdom shall have no end.
And in the Holy Spirit, the Lord, the Creator of life,
Who proceeds from the Father, Who together with the
Father and the Son is worshiped and glorified, Who
spoke through the prophets.
In one, holy, catholic, and apostolic Church.
I confess one baptism for the forgiveness of sins.
I look for the resurrection of the dead,
and the life of the age to come.