Form 4 for ARM ARM HOLDINGS PLC /UK
Accepted 2026-05-19 17:25:51 ET · period of report 2026-05-15 · accession 0001973239-26-000080 · 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 | 2026-05-19 17:25 | 2026-05-15 | ARM | Bartels Laura Kathleen | CAO | M - OptEx | — | +6,758 | 26.8K | +34% | — |
| D | 2026-05-19 17:25 | 2026-05-15 | ARM | Bartels Laura Kathleen | CAO | F - Tax | $209.16 | -3,383 | 23.4K | -13% | -$707.6K |
| DM | 2026-05-19 17:25 | 2026-05-15 | ARM | Bartels Laura Kathleen | CAO | A - Grant | $0.00 | +86.2K | 108.0K | +396% | $0 |
| DM | 2026-05-19 17:25 | 2026-05-15 | ARM | Bartels Laura Kathleen | CAO | M - OptEx | $0.00 | -6,758 | 101.3K | -6% | $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 | 2026-05-15 | M | A | 3,588 | — | 23,654 | 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 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. |
| 2 | Common | Ordinary Shares | 2026-05-15 | M | A | 862 | — | 24,516 | 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 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. |
| 3 | Common | Ordinary Shares | 2026-05-15 | M | A | 2,308 | — | 26,824 | 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) This RSU award was granted on May 22, 2023, 28.5% of which vested on May 15, 2024, with quarterly vesting of 6.5% thereafter. The RSU award was fully vested on May 15, 2026. (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. |
| 4 | Common | Ordinary Shares | 2026-05-15 | F | D | 3,383 | $209.16 | 23,441 | 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. (F6) Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs. |
| 5 | Derivative | Restricted Stock Units | 2026-05-15 | A | A | 16,645 | $0.00 | 38,440 | D | — · — to — | 16,645 Ordinary Shares | (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. (F7) This RSU award was granted effective May 15, 2026, 28.5% will vest on May 15, 2027, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. (F7) This RSU award was granted effective May 15, 2026, 28.5% will vest on May 15, 2027, with quarterly vesting of 6.5% thereafter, subject to continued service to the Company. |
| 6 | Derivative | Restricted Stock Units | 2026-05-15 | A | A | 69,570 | $0.00 | 108,010 | D | — · — to — | 69,570 Ordinary Shares | (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. (F8) This RSU award was granted effective May 15, 2026, 50% will vest on each of May 15, 2028 and May 15, 2029, subject to continued service to the Company. (F8) This RSU award was granted effective May 15, 2026, 50% will vest on each of May 15, 2028 and May 15, 2029, subject to continued service to the Company. |
| 7 | Derivative | Restricted Stock Units | 2026-05-15 | M | D | 3,588 | $0.00 | 104,422 | D | — · — to — | 3,588 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 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. (F2) This restricted stock unit ("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. |
| 8 | Derivative | Restricted Stock Units | 2026-05-15 | M | D | 862 | $0.00 | 103,560 | 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. (F4) This 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. (F4) This 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. |
| 9 | Derivative | Restricted Stock Units | 2026-05-15 | M | D | 2,308 | $0.00 | 101,252 | D | — · — to — | 2,308 Ordinary Shares | (F3) Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. (F5) This RSU award was granted on May 22, 2023, 28.5% of which vested on May 15, 2024, with quarterly vesting of 6.5% thereafter. The RSU award was fully vested on May 15, 2026. (F5) This RSU award was granted on May 22, 2023, 28.5% of which vested on May 15, 2024, with quarterly vesting of 6.5% thereafter. The RSU award was fully vested on May 15, 2026. |