Hedge fund mogul Bill Ackman is starting the new year with a shiny new MetroCard — and a banged-up staff.

Ackman’s embattled Pershing Square hedge fund laid off 18 percent of its staff on Friday — a total of 10 pink slips that brought head count down to 46, according to a source familiar with the matter.

Among the laid-off employees was Ackman’s driver, according to Reuters, which first reported news of the cuts.

Without a wheelman, Ackman, instead of riding in a chauffeured car will either walk or hop on the subway near his Upper West Side home for the 10-minute ride to his Midtown office.

Most of the other laid-off employees were in the hedge fund’s back-office and support staff. Only one member from the hedge fund’s 10-person investment team was let go.

The layoffs come after Ackman’s now $9 billion fund suffered three consecutive years of losses while the broader market rallied.

In 2017, Pershing lost 4 percent while the S&P 500 gained 21.8 percent. The fund lost 20.5 percent and 13.5 percent in 2015 and 2016, respectively.

Ackman started 2015 with more than $18 billion in assets under management, but the fund suffered greatly over the last few years following a disastrous investment in Valeant Pharmaceuticals, which cost the fund roughly $4 billion by the time Ackman exited the position in March 2017.

Other bets failed to compensate for the massive Valeant loss, and some investors fled amid weak performance.

With a staff of 46, Pershing Square now employs roughly the same number of employees it had in 2011 — coincidentally when the firm’s assets were also around $9 billion, according to a source.

At that point, Pershing Square’s assets were growing. The fund has delivered 15 percent on average since inception, according to a source.

In addition to the layoffs, Ackman is said to plan to spend more time focusing on the fund’s investment strategy instead of promotional activities.

Even amid years of hefty losses, Ackman has frequently made rounds on financial television and investment conferences as well as one-on-ones with investors.

Partner Ben Hakim will be taking over much of the outward-facing part of the business while Ackman will be redoubling efforts on investment analysis, according to the Reuters report.

Reps from Pershing Square declined to comment.