
Donald Trump made trades for investment banking and brokerage firm Cantor Fitzgerald on their charity day to honor the company's 658 employees who died on September 11.

The annual event on Monday also drew big names such as Princess Beatrice and her mother Sarah Ferguson, along with Pamela Anderson, Steve Buscemi, Peyton Manning and Tony Danza.

The celebrities took to the company phones, posing for photos while striking up deals alongside employees, who donate their day's salary, along with any commission.

Cantor Fitzgerald, which raised $12million on last year's charity day, will donate 100per cent of the company's global revenues on Monday to support more than 100 charities.

Donald Trump made trades for investment banking and brokerage firm Cantor Fitzgerald on their charity day to honor the company's 658 employees who died on September 11

Donald Trump appeared at Ground Zero on Sunday to commemorate the 15th anniversary of the terrorist attacks. On Monday, he posed with Cantor Fitzgerald CEO Howard Lutnick (second from left) at their Charity Day event

Princess Beatrice (left, with her mother Sarah Ferguson, right) mingled with Trump's daughter Ivanka the night before at the Arthur Ashe stadium as Swiss player Stan Wawrinka beat world number one Novak Djokovic in the US Open men's final

Celebrities posed for photographs and took to their phones to strike up deals, raising money for more than 100 charities. Pictured left, Beatrice in a flared miniskirt and burgundy heels, and right, Fergie in a light blue jacket with piped detailing

Actor Robert De Niro, a longtime New Yorker, is on the board of directors at the 9/11 Memorial and Museum

Pamela Anderson (pictured shaking hands with Lutnick) heads her own foundation, one of the organizations supported by Charity Day. Proceeds on Monday will go to the National Domestic Violence Hotline

Anderson appeared at the event in a metallic, flower print dress with a demure bow at the neckline. 100 per cent of the company's global revenue on Monday will be donated

Cantor Fitzgerald had 960 employees in New York City when hijacked commercial airplanes crashed into the World Trade Center on the fateful morning of September 11, 2001.

The company was devastated, losing 658 employees in the terrorist attacks that claimed nearly 3,000 lives.

CEO Howard Lutnick was dropping off his son at school when the first plane hit, but his brother Gary died in the offices.

Their sister Edie also worked on the 101st floor of the twin towers, but escaped death when a meeting was canceled.

'I got a phone call from Gary saying that he was in the building and saying that he loved Howard and I and saying goodbye,' she told Town and Country.

Just three days after 9/11, Edie and Howard, who helped family members of employees track down their loved ones, established the Cantor Fitzgerald Relief Fund.

Fifteen years later, Charity Day has raised more than $125million in an effort to 'turn a tragic day into one that is positive and uplifting by helping others,' the event website states.

Lutnick promised to give loved ones of the Cantor Fitzgerald victims 25 perc ent of the firm's profits for five years, with guarantees of at least $100,000 for each family. Pictured, Gayle King at Charity DAy

Cantor Fitzgerald Relief Fund's mission is 'to support victims of terrorism, emergencies and natural disasters' (pictured, Zachary Quinto)

The fund has also helped victims of natural disasters like Superstorm Sandy, Hurricane Katrina and the Haiti earthquake. Both Malin Akerman (left) and Mary-Louise Parker (right) kept to monochrome outfits

Actor Steve Buscemi (pictured) once worked as a firefighter in New York City, and after 9/11, he worked 12-hour shifts looking to rescue people from the rubble

The company raised $12million last year, and employees also donate their day's salary, along with any commission. Pictured, Mad Men actor John Slattery (left) and actress Rosie Perez (right)

Brendan Fraser (left) and Kyle MacLachlan (right) both looked dapper at the event. The relief fund helped family members of Cantor Fitzgerald employees who died on 9/11, in addition to the loved ones of victims from 14 other companies

Cantor Fitzgerald lost 658 employees when hijacked commercial airplanes crashed into the World Trade Center on the fateful morning of September 11, 2001. Pictured, comedian Louis CK

CEO Howard Lutnick was dropping off his son at school when the first plane hit, but his brother Gary died in the offices. Howard and his sister Edie established the fund three days after 9/11. Pictured, model Lily Aldridge

Actress Bridget Moynahan (left) and Tony Danza (right) were also in attendance. Danza recalled his shock on the morning on 9/11, and said he was struck by the debris and the smell that hung in the air when he visited the city days after the attack

Peyton Manning (left, posing with a fan), made it a family affair with brother Eli Manning (right), a quarterback for the New York Giants

Lutnick told his sister Edie (left with NFL player Terrell Owens) to run the relief fund. She said: 'I started thinking about all the people that I felt were more qualified to do this than I was and I realized that they were all gone. So I said: "Okay."'