Nippon Life lifts Corebridge stake as Elliott trims Seadrill holding

what happened

According to Barron's, which relies on VerityData's compilation of 13D filings made with the SEC from October 8 through October 14, 2026, several large holders updated their positions this week. Nippon Life Insurance raised its Corebridge Financial (CRBG) holding to 126,604,050 shares by buying 4,614,523 shares between September 9 and October 2 at prices from $32.29 to $35.60. Its stake now stands at 28.4%. Corebridge shareholders had earlier approved a merger with Equitable Holdings, which is expected to close by year-end.

Longview Asset Management reduced its General Dynamics (GD) position to 24,388,917 shares, selling 2,707,871 shares from September 1 through October 1, and still holds 9%. Madrone Capital Partners sold 750,000 StoneCo (STNE) shares on October 5 and now owns 10.8% of the company. Famatown Finance cut its International Seaways (INSW) holding to 6,704,304 shares, leaving it with a 13.5% stake.

Elliott Management lowered its Seadrill (SDRL) position to 3,108,641 shares, or 4.9%, which takes it below the 5% level that would require further sales to be reported.

why it matters

Filings like these appear routinely and rarely move the market on their own, but they show how large investors are reallocating capital. The reports reflect holdings as of their filing dates, not current quotes. Per Barron's, Corebridge shares have gained about 12.2% so far in 2026, General Dynamics lost roughly 2.5%, StoneCo fell about 21.3%, International Seaways rose approximately 149.5%, and Seadrill gained roughly 37.3%.

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