The youngster said he was “so proud”, as he punched the air.
Teddy’s mission began when he discovered plastic tubs containing confectionery, which are particularly popular during the Christmas period, could not be put in household recycling bins where he lives.
While some authorities in the UK are able to recycle these tubs via kerbside collection, currently Hampshire cannot.
Teddy earned the nickname “Sweet Tub Teddy” as he went about collecting tubs from people, taking them out of bins, asking locals to leave them on his doorstep and through support from some supermarkets.
His mum Laura said the family was “so proud that he’s using his voice as a power of change”.
“He set this goal, which we thought was unachievable – 5,000 – and now he’s gone and absolutely smashed it, gone past what he ever could have imagined,” she said.
Laura said Teddy’s grandfather had spent five hours counting the tubs up on Friday and she hoped the companies that produce the tubs “listened to Teddy”.
“One, it would save a lot of space in my house and a lot of ferrying around,” she said.
“But two, the point that he’s making is so valid … is there an alternative that’s better for the environment?”