Those are examples, not an exhaustive list. For IRS questions, go to the source. In this case:
In particular, this section:
The following transactions (whether direct or indirect) between a plan and a disqualified person result in a prohibited transaction subject to the sanctions of IRC 4975 unless there is an applicable statutory or administrative exemption:
Sale, exchange or lease of any property.
Loans or extensions of credit.
Furnishing of goods, services or facilities.
Transfer to, or use by or for the benefit of, a disqualified person of any income or assets of a plan.
Dealings by a fiduciary with the income or assets of the plan for his/her own interest or account.
Receipt by a fiduciary of any consideration, from a party dealing with the plan in connection with a transaction involving income or assets of the plan.
See IRC 4975(f)(6) for certain instances where a statutory exemption in IRC 4975(d) is inapplicable.
Emphasis added. Notice there is no mention of one direction being prohibited (your buying from you, like in those examples) but the other direction being OK. In fact, the next section says:
The sale, exchange or leasing of property, directly or indirectly, between a disqualified person and the plan constitutes a prohibited transaction whether the transaction was made from the disqualified person to the plan or from the plan to the disqualified person.
Here's the actual text of section 4975: