Filing Details
CACTI ASSET MANAGEMENT LLC, a registered investment adviser, initiated a new position in Amentum Holdings, Inc. (NYSE:AMTM) during Q2 2026, according to its most recent 13F filing with the Securities and Exchange Commission.
The institutional investor purchased 881,692 shares of the Industrials company, valued at approximately $18.2M as of the filing date.
Market Context
Amentum Holdings, Inc.'s stock currently trades at $20.98 with a market capitalization of $7.3B.
A new institutional position can signal growing confidence in a company's prospects. When large asset managers like CACTI ASSET MANAGEMENT LLC establish stakes, it often reflects months of due diligence and a conviction that the stock is undervalued or poised for growth. Retail investors often track 13F filings to identify stocks that institutional money is moving into.
Amentum Holdings, Inc. operates in the Industrials sector, where institutional ownership patterns can provide insight into how professional investors view the industry's near-term prospects.
Investors should note that 13F filings reflect holdings as of the end of the reporting quarter and are filed up to 45 days later. The position may have changed since the filing date. 13F data is most useful when analyzed alongside other signals such as insider transactions, analyst ratings, and fundamental trends.
Related Tools: Insider Trades Tracker | View AMTM Stock Page
Frequently Asked Questions
What is a 13F filing?
A 13F filing is a quarterly SEC report required for institutional managers with over $100 million in assets. It discloses equity holdings, providing transparency into how firms like CACTI ASSET MANAGEMENT LLC position their portfolios.
How can I track institutional ownership of AMTM?
View all institutional holders on our AMTM institutional ownership page.