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Stocks•22 April 2026•

1 min read

Citadel Discloses 10% Stake in Space Firm Momentus Inc.

Key Facts

1Citadel Advisors and affiliated entities disclosed a 9.97% beneficial ownership stake in Momentus Inc. Class A common stock.

2Kenneth Griffin is reported to beneficially own 635,792 shares, representing 9.99% of the outstanding shares.

Citadel Advisors and its affiliated entities have disclosed a 9.97% beneficial ownership stake in Momentus Inc. (MNTS) Class A common stock. According to the regulatory filing, Kenneth Griffin is reported to beneficially own 635,792 shares, representing approximately 9.99% of the company's outstanding shares. The disclosure was made via a Schedule 13G filing, which typically indicates a passive investment intent by the institutional giant. This significant stake by a major player like Citadel is often interpreted by the market as a vote of confidence in the space infrastructure firm's long-term potential. Investors are closely monitoring the move, as Citadel's entry often signals institutional interest in niche technology sectors. The acquisition highlights a strategic positioning within the aerospace and satellite services industry.