Form 4 for ARM ARM HOLDINGS PLC /UK
Accepted 2026-08-18 17:31:49 ET · period of report 2026-08-17 · accession 0001973239-26-000121 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-18 17:31 | 2026-08-17 | ARM | Bartels Laura Kathleen | CAO | M - OptEx | — | +1,681 | 13.8K | +14% | — |
| D | 2026-08-18 17:31 | 2026-08-17 | ARM | Bartels Laura Kathleen | CAO | F - Tax | $271.43 | -856 | 13.0K | -6% | -$232.3K |
| DM | 2026-08-18 17:31 | 2026-08-17 | ARM | Bartels Laura Kathleen | CAO | M - OptEx | $0.00 | -1,681 | 99.6K | -2% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Ordinary Shares | 2026-08-17 | M | A | 862 | — | 12,997 | D | — | — | (F1) Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share. (F2) This restricted stock unit ("RSU") award was granted on May 13, 2024, 28.5% of which vested on May 15, 2025, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. |
| 2 | Common | Ordinary Shares | 2026-08-17 | M | A | 819 | — | 13,816 | D | — | — | (F1) Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share. (F4) This RSU award was granted on May 1, 2025, 28.5% of which vested on May 15, 2026, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. |
| 3 | Common | Ordinary Shares | 2026-08-17 | F | D | 856 | $271.43 | 12,960 | D | — | — | (F1) Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share. (F5) Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs. |
| 4 | Derivative | Restricted Stock Units | 2026-08-17 | M | D | 862 | $0.00 | 100,390 | D | — · — to — | 862 Ordinary Shares | (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. (F2) This restricted stock unit ("RSU") award was granted on May 13, 2024, 28.5% of which vested on May 15, 2025, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. (F2) This restricted stock unit ("RSU") award was granted on May 13, 2024, 28.5% of which vested on May 15, 2025, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. |
| 5 | Derivative | Restricted Stock Units | 2026-08-17 | M | D | 819 | $0.00 | 99,571 | D | — · — to — | 819 Ordinary Shares | (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. (F4) This RSU award was granted on May 1, 2025, 28.5% of which vested on May 15, 2026, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. (F4) This RSU award was granted on May 1, 2025, 28.5% of which vested on May 15, 2026, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. |