Senator's 700+ Trades Include a Nebius Bet That's Up Big

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Senator Alan Armstrong (R-Okla.) has been busy since taking office in March. The former oil executive has made hundreds of stock trades, and one of them was a bet on an AI company that has paid off handsomely.

Senator Buys Nebius Stock

On March 30, 2026, Armstrong bought between $1,000 and $15,000 worth of Nebius Group NV (NBIS) stock, according to data from the MarketDash Government Trades page. That trade came just six days after he joined the Senate, making it one of his first moves in office.

Armstrong filled the seat vacated by Markwayne Mullin, who left to become Homeland Security Secretary. Since then, he's placed more than 700 trades.

On the day Armstrong bought Nebius, the stock traded between $89.65 and $102.24. If he bought the full $15,000 at the top of that range, he could have picked up between 146.7 and 167.3 shares. Today, that stake would be worth between $33,520.95 and $38,228.05, representing a paper profit of $18,520.95 to $23,228.05. That's a gain of over 120%, and could be over 150% if he bought near the day's lows.

Nebius stock is up 18% Wednesday after the company reported quarterly financial results.

Armstrong's Trading History

Armstrong is the former CEO of Williams Companies Inc (WMB), an oil and gas company. His largest disclosed transactions since taking office include sales of WMB stock worth between $5 million and $25 million, plus sales of WMB stock options valued between $250,000 and $500,000.

Those trades are part of more than 700 transactions totaling over $25 million since March, according to data from Quiver Quantitative. Most were in the $1,000 to $15,000 and $15,000 to $50,000 ranges.

The majority of the trades have been sales, with $7.7 million in buying volume and $17.4 million in selling volume. Based on the size of the trades, Armstrong is favoring technology stocks going forward, and many of his top purchases were Magnificent Seven stocks. Apple, Alphabet, and Nvidia were three of his five largest trades.

The STOCK Act requires members of Congress to report their stock transactions within 45 days. Armstrong's trades date back to March, meaning they were made four months ago. Unusual Whales flagged the disclosures, noting Armstrong reported more than 700 stock trades "with nearly all filed well beyond the STOCK Act's 45-day reporting deadline." The account also highlighted that the current penalty for violating the STOCK Act is $200.

Quiver Quantitative tweeted: "Senator Alan Armstrong just disclosed hundreds of stock trades made in late March, just days after he entered office. He JUST filed them – months past the deadline. This has got to be a record for the quickest STOCK ACT violation ever."

MarketDash will continue to monitor Sen. Armstrong's trading activity going forward.