The SEC declined to comment.
Riot's stock closed up nearly 12 percent Thursday for unknown reasons. The shares then fell in extended trading Thursday after the results were released and were down more than 7 percent midafternoon Friday.
The earnings report shows a company in the red. Riot brought in less than $1 million in revenue during the first quarter while posting a loss. Most of that revenue came from cryptocurrency mining, which was still being fully set up last quarter. The company had $5.3 million in cash at the end of the first quarter, down from $41.7 million in December. Riot has $4.3 million worth of cryptocurrency.
"The Company expects to continue to incur losses from operations for the near-term and these losses could be significant," the report said.
Over that last quarter, Riot spent $18.9 million on purchasing property and equipment and used $5.6 million for operating activities.
"The Company expects the need to raise additional capital to expand our operations and pursue our growth strategies," Riot said. It expects to be able to meet its cash needs for at least one year, according to the filing.
A CNBC investigation in February found a number of red flags in the company's SEC filings that might make investors leery: annual meetings that are postponed at the last minute, insider selling soon after the name change, dilutive issuances on favorable terms to large investors, SEC filings that are often Byzantine and evidence that a major shareholder was getting out while everyone else was getting in.
O'Rourke accused CNBC of publishing "a negative one-sided piece."
"We have made significant inroads in building a diversified portfolio of investments and to begin securing digital assets," O'Rourke said in a letter to shareholders the day the investigation aired.
As bitcoin hit record highs in late December, Riot was making news on a daily basis. The company's stock shot from $8 a share to more than $40, as investors wanted to cash in on the craze of all things crypto.
But Riot had not been in the cryptobusiness for long. Until October, its name was Bioptix, and it was known for having a veterinary products patent and developing new ways to test for disease.
Riot warned it "may never become profitable," in its latest annual report.
"Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods," the report said.