Which would make him the majority shareholder. By a margin of 5% - almost double the next largest shareholder and more than the next dozen shareholders combined.
In other words: he has unilateral control of the company. Welcome to publicly traded companies. You don't need 51% to control the company.
He's a de facto controlling shareholder due to how comfortably secure his plurality is, absolutely. And he's got a significant amount of de jure control by being Amazon's President, CEO, and Chairman of its Board of Directors. It's under his control in many real senses.
But he's not a majority shareholder, since his percentage of ownership does not exceed 50%.
Bu that reasoning, if 1000 people each own 0.1% of a company, and one buys another out, then the person with 0.2% has "unilateral control of the company", implying that the other 99.8% could not stop the desires or action of the 0.2%.
This is nonsense. Any 3 of the 999 could stop the 1.
In other words: he has unilateral control of the company. Welcome to publicly traded companies. You don't need 51% to control the company.