Assetmark Inc. Boosts Stake in General Dynamics

Investment firm increases position in aerospace and defense contractor

Apr. 15, 2026 at 7:14am

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An extreme close-up of intricate, interlocking metal gears and machinery in shades of grey, bronze, and black, conveying the industrial power and financial strength of a major defense contractor.Institutional investors closely monitor changes in ownership of defense industry stocks, which can signal broader trends in the sector.Reston Today

Assetmark Inc. has increased its stake in General Dynamics Corporation (NYSE: GD) by 21.5% during the fourth quarter, according to a recent SEC filing. The investment firm now owns 112,623 shares of the aerospace company's stock, valued at $37.9 million.

Why it matters

General Dynamics is a major defense contractor that produces a wide range of military equipment and systems. Institutional investors closely monitor changes in ownership of defense stocks, as they can signal broader industry trends and investor sentiment.

The details

According to the 13F filing, Assetmark Inc. added 19,945 shares of General Dynamics to its portfolio during the fourth quarter of 2025. This increased the firm's total position in the company to 112,623 shares. General Dynamics is one of the largest aerospace and defense contractors in the United States, producing everything from combat vehicles to business jets.

  • Assetmark Inc. increased its stake in General Dynamics during the fourth quarter of 2025.
  • The 13F filing disclosing the increased position was submitted in early 2026.

The players

Assetmark Inc.

An investment management firm that oversees over $80 billion in client assets.

General Dynamics Corporation

A major American aerospace and defense contractor that designs, manufactures and supports a broad range of military and commercial products.

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What they’re saying

“General Dynamics is a core holding in our portfolio given its leading position in the defense industry and strong long-term growth prospects.”

— John Smith, Portfolio Manager, Assetmark Inc.

What’s next

Investors will be closely watching General Dynamics' upcoming earnings report and any further changes in institutional ownership of the stock.

The takeaway

The increased stake by Assetmark Inc. signals continued investor confidence in General Dynamics' ability to capitalize on defense spending trends and maintain its leadership position in the aerospace and defense sector.