The Gold Coast theme park conducted the Open Hearts-Open Doors charity event as part of the weekend, which raised $157,225 for the Red Cross.
The money will be distributed to the families of the victims through the GIVIT Appeal Independent Distribution Committee.
Ardent Leisure (ASX:AAD) CEO and managing director, Deborah Thomas, says the company, which owns Dreamworld, will continue to offer its support to the families.
She says Dreamworld staff were touched by the warmth and kindness shown by the visitors.
"On behalf of our over 1,000 Dreamworld employees I would like to extend our heartfelt thanks to the wonderful Gold Coast community and the thousands of special people who travelled to Dreamworld this weekend."
The reopening came six weeks after the deaths of Kate Goodchild, 32, her brother Luke Dorsett, his partner Roozi Araghi and Cindy Low, 42, on the Thunder River Rapids Ride, which has been decommissioned.
A number of the rides remained closed over the weekend, as a safety audit of the park continues.
Dreamworld has a capacity of around 10,000 per day and attracted 2.4 million visitors in the 2016 financial year.
Ardent is trading down 0.44 per cent at $2.28 per share today, compared to around $2.80 before the tragedy.
Help us deliver quality journalism to you.
As a free and independent news site providing daily updates
during a period of unprecedented challenges for businesses everywhere
we call on your support