Insider Trading February 25, 2026

Mitsui Sumitomo Purchases $39.38M of W. R. Berkley Stock in Multi-Day Buying

Japanese insurer adds to its stake in WRB via pre-arranged 10b5-1 plan as Berkley posts mixed fourth-quarter results and declares a quarterly dividend

By Avery Klein WRB
Mitsui Sumitomo Purchases $39.38M of W. R. Berkley Stock in Multi-Day Buying
WRB

Mitsui Sumitomo Insurance Co., Ltd. acquired $39,381,431 of common stock in W. R. Berkley Corporation (NYSE: WRB) across multiple transactions executed between February 23 and February 25, 2026. The purchases were made under a Rule 10b5-1 plan adopted October 3, 2025. W. R. Berkley reported fourth-quarter 2025 revenue above analyst expectations, EPS in line with forecasts, and declared a regular quarterly cash dividend of $0.09 per share payable March 4, 2026 to shareholders of record February 23, 2026.

Key Points

  • Mitsui Sumitomo purchased $39,381,431 of WRB common stock across Feb. 23-25, 2026 at prices between $70.5232 and $71.8041.
  • All trades were executed under a pre-arranged Rule 10b5-1 purchase plan adopted October 3, 2025; post-transaction direct holdings total 58,222,274 WRB shares.
  • W. R. Berkley’s Q4 2025 revenue surpassed analyst expectations while EPS matched forecasts; the company declared a $0.09 quarterly dividend payable March 4, 2026 (record date Feb. 23, 2026).

Overview

Mitsui Sumitomo Insurance Co., Ltd., which holds a 10% ownership stake in W. R. Berkley Corporation (NYSE: WRB), disclosed a sequence of common-stock purchases totaling $39,381,431. The acquisitions took place from February 23 through February 25, 2026, at transaction prices ranging from $70.5232 to $71.8041. As of the report, WRB shares trade at $71.58, representing nearly a 20% gain over the past 12 months. InvestingPro analysis cited in the filing indicates the company remains undervalued relative to its Fair Value.


Transaction details

The disclosure breaks down the trades by date and price bands as follows:

  • February 23: 203,590 shares purchased at prices between $70.635 and $71.63, plus a separate lot of 16,410 shares at prices from $71.6325 to $72.0067.
  • February 24: 103,192 shares acquired at prices ranging from $70.0004 to $70.9982, and an additional 61,594 shares at prices between $71.0034 and $71.50.
  • February 25: 154,512 shares bought at prices between $70.7116 and $71.6998, together with 14,356 shares at prices from $71.70 to $72.07.

Collectively, these purchases accounted for $39,381,431 and were carried out under a pre-arranged Rule 10b5-1 purchase plan that Mitsui Sumitomo adopted on October 3, 2025. After completing these transactions, Mitsui Sumitomo Insurance Co., Ltd. reported a direct holding of 58,222,274 shares of W. R. Berkley Corporation.


Company financials and shareholder actions

In related corporate news, W. R. Berkley announced fourth-quarter 2025 results in which revenue exceeded analyst expectations while earnings per share matched forecasts. The company also declared a regular quarterly cash dividend of $0.09 per share, payable on March 4, 2026, to shareholders of record as of February 23, 2026. The dividend announcement was included alongside the quarterly results and underscores the company’s continued use of cash returns to shareholders.


Context for investors

The filing referenced InvestingPro content, noting that subscribers have access to over 10 additional ProTips for WRB, including information on the company’s 52-year dividend payment streak and a full Pro Research Report. The InvestingPro assessment within the disclosure indicated WRB is undervalued relative to its Fair Value.


Takeaways

  • Mitsui Sumitomo completed a concentrated buying program totaling $39.38 million over three trading days.
  • The activity was executed via a pre-arranged Rule 10b5-1 plan adopted October 3, 2025.
  • W. R. Berkley’s quarter delivered revenue above expectations while EPS met forecasts; the firm also declared a $0.09 quarterly dividend payable March 4, 2026 to holders of record February 23, 2026.

Risks

  • The purchases were carried out through a pre-arranged Rule 10b5-1 plan adopted October 3, 2025, which formalizes the timing of trades.
  • Fourth-quarter 2025 results showed revenue above expectations but EPS in line with forecasts, presenting mixed near-term performance signals for investors.
  • Valuation commentary referenced is based on InvestingPro analysis that indicates WRB remains undervalued relative to its Fair Value; such analysis represents one assessment and may not capture all variables investors consider.

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