Company · Ownership research

ARM HOLDINGS PLC /UK ARM

CIK 0001973239

Form 3 statements with an event date from Nov 1, 2023 to Nov 8, 2026.

Insider trading Initial holdings Institutional holders

Where insider ownership starts.

Form 3 is an initial ownership statement filed when someone becomes a reporting insider. These holdings do not mean they bought shares that day.

202615 of 15 statements

Holdings date	Insider	Initial holdings
Mar 18, 2026	Bartels Laura Kathleen Chief Accounting Officer	20.07K shares · 3 equity awards	▾
Mar 18, 2026	Grisenthwaite Richard Roy Chief Architect	326 shares · 5 equity awards	▾
Mar 18, 2026	Abbey William Chief Commercial Officer	48.20K shares · 4 equity awards	▾
Mar 18, 2026	Eaton Charlotte Claire Chief People Officer	10.77K shares · 3 equity awards	▾
Mar 18, 2026	Collins Spencer Chief Legal Officer	51.96K shares · 3 equity awards	▾
Mar 18, 2026	Child Jason Chief Financial Officer	195.99K shares · 3 equity awards	▾
Mar 18, 2026	Haas Rene A. Chief Executive Officer · Director	314.83K shares	▾
Mar 18, 2026	JACOBS PAUL E Director	2 stock holdings · 1 equity award	▾
Mar 18, 2026	Schooler Rosemary Director	7.43K shares · 1 equity award	▾
Mar 18, 2026	Sine Jeffrey Director	7.43K shares · 1 equity award	▾
Mar 18, 2026	DYKSTRA KAREN E Director	2 stock holdings · 2 equity awards	▾
Mar 18, 2026	SOHN YOUNG Director	684 shares · 1 equity award	▾
Mar 18, 2026	FISHER RONALD D Director	35.62K shares · 2 equity awards	▾
Mar 18, 2026	MASAYOSHI SON Director	0 shares	▾
Mar 18, 2026	SOFTBANK GROUP CORP. Director · 10% owner	922.73M shares	▾

Showing 15 / 15 statements in 2026. The complete set is available through the API.

ARM HOLDINGS PLC /UK · ARM

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.