Sumitomo Life Insurance Boosts Stake in Western Digital

The Japanese insurance company increased its position in the data storage provider by over 200% in the third quarter.

Published on Feb. 27, 2026

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Sumitomo Life Insurance Co. boosted its position in Western Digital Corporation (NASDAQ:WDC) by 217.1% in the 3rd quarter, according to the company's SEC filing. Sumitomo Life Insurance now owns 14,731 shares of the data storage provider's stock, worth $1.77 million as of the latest filing.

Why it matters

The significant increase in Sumitomo Life's stake in Western Digital suggests the Japanese insurance company sees strong growth potential in the data storage firm. As a major institutional investor, Sumitomo Life's investment decisions can influence market sentiment around Western Digital.

The details

Sumitomo Life Insurance increased its holdings in Western Digital by purchasing an additional 10,086 shares during the third quarter. This brought the company's total position in Western Digital to 14,731 shares. Other large investors have also been active in Western Digital, with firms like ORG Partners LLC and Rakuten Securities Inc. also boosting their stakes in the data storage provider.

  • Sumitomo Life Insurance increased its Western Digital holdings in the 3rd quarter of 2026.
  • Western Digital is scheduled to report its next quarterly earnings on January 29, 2026.

The players

Sumitomo Life Insurance Co.

A major Japanese insurance company that has increased its stake in Western Digital by over 200% in the third quarter.

Western Digital Corporation

A global data storage company that designs, manufactures and sells a range of storage devices and systems for personal, enterprise and cloud applications.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

What’s next

Western Digital is scheduled to report its next quarterly earnings on January 29, 2026, which will provide more insight into the company's performance and outlook.

The takeaway

Sumitomo Life Insurance's significant increase in its Western Digital stake suggests the Japanese firm sees strong growth potential in the data storage provider, which could influence market sentiment around the company.