Quantum Insiders’ $895 Million Net Selling Raises Valuation Questions

Insiders at IonQ, Rigetti Computing, D-Wave Quantum and Quantum Computing Inc. sold a combined $895.1 million more shares than they bought over two years, according to a tally of company filings reported by The Motley Fool. IonQ accounted for the largest net selling, at $454.5 million.

The tally covers transactions since Sept. 18, 2024. Rigetti insiders were net sellers of $75.7 million, D-Wave insiders $331.1 million and Quantum Computing insiders $33.8 million. The companies’ tickers are IONQ, RGTI, QBTS and QUBT.

Purchases were scarce over the same period: IonQ insiders bought about $2.25 million in shares, D-Wave insiders $1,795, and the tally showed no purchases at Rigetti or Quantum Computing. The figures reflect reported trades, not a direct measure of executives’ views on future performance.

Selling can have routine explanations. Executives may sell shares to cover taxes after receiving stock compensation or to diversify their investments, so net selling alone does not establish that insiders expect prices to fall.

The activity comes after a sharp run-up. The Fool’s comparison put the four stocks’ gains over the same two-year span at roughly 400% for IonQ, 1,820% for Rigetti, 1,670% for D-Wave and 1,200% for Quantum Computing.

Valuations offer another reason investors may watch the filings closely. As of Sept. 18, the companies traded at trailing price-to-sales ratios of 55.7 for IonQ, 391.2 for Rigetti, 494.1 for D-Wave and 183.3 for Quantum Computing, according to the article. That measure compares a company’s market value with its recent revenue.

Those multiples leave little room for delays in commercial adoption or revenue growth. Quantum computing remains an emerging field, and the share-sale figures do not show whether the companies’ technology or customer demand will meet investor expectations.

The next signal to watch is whether future filings show insiders buying shares, alongside company updates on revenue, contracts and commercial use. A change in reported trading may add context, but it will not by itself settle the investment case.