Elon Musk was seen entering the Twitter headquarters with an object that looked like a shell.

Mr Musk tweeted a video of himself entering a building in San Francisco, a day after reports he could complete a $44 billion takeover of the site by the end of this week.

The 51-year-old captioned the video: “Entering Twitter HQ – let it in!” – a play on words for the shell he carried.

He also changed his Twitter bio to “Chief Twit,” teasing his move.

According to a Bloomberg report, the banks involved in the takeover have completed drafting the final loan agreement and are in the process of signing the documentation.

Mr. Musk, the tycoon behind Tesla and Space X, pledged $46.5 billion in equity and debt financing for the takeover, covering the $44 billion price tag and closing costs.

A number of banks, including Morgan Stanley and Bank of America, provided $13 billion in debt financing to support the deal.

Equity investors, including Oracle Corp co-founder Larry Ellison and Saudi Prince Alwaleed bin Talal, will contribute $7.1 billion.

However, the absorption was far from smooth.

The richest man in the world is on the verge of buying Twitter

On Oct. 4, Mr. Musk said he would continue with the full sentence made in April, on the eve of legal action, which Twitter was set to be brought against him later this month for reneging on the deal.

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Mr Musk, a long-time Twitter critic of free speech, tried to negotiate better terms on the grounds that the social media company refused to disclose the true number of spam accounts on the platform.

He argued that this question mark casts doubt on the true market value of the business.

Shares in US tech companies have also taken a hit since the deal – in the case of Twitter, falling from $44 (£37.85) a share on April 14 to $32 (£27.53) in July, when the bid was officially withdrawn .

The offer price that Musk initially agreed to was $54.20 (£46.63) per share, but the share price is currently $53.32 (£45.87).