ARM HOLDINGS PLC /UK 4

CEO Rene A. Haas of Arm Holdings plc bought 64 Ordinary Shares via the employee stock purchase plan and was granted 425,000 performance-based RSUs tied to future market cap milestones.

On this Form 4, Arm Holdings plc CEO Rene A. Haas reported two primary insider transactions. On August 31, 2026, he acquired 64 Ordinary Shares (in ADS form) at $108.33 per share under the Arm Employee Stock Purchase Plan, for an estimated total of about $6,933; following this, his directly held Ordinary Shares increased to 338,666, and a separate 57,405-share position is held indirectly in a grantor retained annuity trust (GRAT) for his benefit, to which he had transferred those shares on September 9, 2026. In addition, effective September 9, 2026, upon obtaining shareholder approval, he received a performance-based award of 425,000 Restricted Stock Units that will settle in Ordinary Shares (ADSs) contingent upon Arm reaching specified market capitalization milestones between 2029 and 2031; this award does not vest immediately and therefore adds contingent, rather than currently owned, equity exposure. The RSU grant, if ultimately earned, would represent a large prospective equity stake, but the immediately funded purchase under the ESPP is relatively modest in dollar size.

Filing Facts

CIK

1973239

Ticker

ARM

Form

4

Source Type

sec

Accession

0001973239-26-000130

Alert Tier

8