Bartels Laura Kathleen 4
4 · ARM HOLDINGS PLC /UK · Filed May 19, 2026
Research Summary
AI-generated summary of this filing
ARM Chief Accounting Officer Laura Bartels Exercises RSUs, Sells 3,383 Shares
What Happened
Laura Kathleen Bartels, Chief Accounting Officer of ARM, had restricted stock units (RSUs) vest and completed conversion/exercise steps on May 15, 2026. Several derivative conversions (3,588; 862; and 2,308 ADSs) were processed and, to satisfy tax withholding on vesting, 3,383 ADSs were withheld/sold at $209.16 per ADS for proceeds of $707,588. In addition, Bartels received new RSU awards totalling 86,215 RSUs (16,645 and 69,570 RSUs) granted effective May 15, 2026.
Key Details
- Transaction date: May 15, 2026; Form 4 filed May 19, 2026 (filed 4 days after the transactions; Form 4s are generally due within 2 business days).
- Sale/withholding: 3,383 ADSs withheld/ disposed at $209.16 each for $707,588 (tax withholding). Transaction code F (payment of exercise price or tax liability).
- Exercises/conversions: Derivative conversions/exercises processed for 3,588; 862; and 2,308 ADSs (transaction code M). Some exercise/conversion items reported with $0 cash value (derivative conversion to shares).
- Grants: Two new RSU awards granted effective May 15, 2026 totaling 86,215 RSUs (transaction code A; $0.00 per share because these are awards).
- Footnotes of note:
- F1: ARM ordinary shares are held as ADSs; 1 ADS = 1 ordinary share.
- F2–F5/F7–F8: Vesting schedules: these awards were granted in 2023–2026 with standard time-based vesting (some earlier awards fully vested May 15, 2026).
- F6: Ordinary shares were withheld to satisfy tax withholding requirements on RSU vesting.
- Shares owned after the transactions: not stated in the provided filing.
Context
- This was primarily a vesting/tax-withholding event, not an open-market sale or purchase by the insider. When RSUs vest, companies commonly withhold or sell a portion of shares to cover taxes — that's what's reported here (routine corporate administration).
- For retail investors: awards and vesting are routine compensation events; the only cash flow reported is the tax-withholding disposal of 3,383 ADSs for ~$707.6k.
- The filing date suggests the Form 4 was submitted a few days after the transaction date; investors may note the timing but this type of filing typically documents routine vesting and withholding rather than discretionary trading.
Insider Transaction Report
Form 4
Bartels Laura Kathleen
Chief Accounting Officer
Transactions
- Exercise/Conversion
Ordinary Shares
[F1][F2][F3]2026-05-15+3,588→ 23,654 total - Exercise/Conversion
Ordinary Shares
[F1][F4][F3]2026-05-15+862→ 24,516 total - Exercise/Conversion
Ordinary Shares
[F1][F5][F3]2026-05-15+2,308→ 26,824 total - Tax Payment
Ordinary Shares
[F1][F6]2026-05-15$209.16/sh−3,383$707,588→ 23,441 total - Award
Restricted Stock Units
[F3][F7]2026-05-15+16,645→ 38,440 total→ Ordinary Shares (16,645 underlying) - Award
Restricted Stock Units
[F3][F8]2026-05-15+69,570→ 108,010 total→ Ordinary Shares (69,570 underlying) - Exercise/Conversion
Restricted Stock Units
[F3][F2]2026-05-15−3,588→ 104,422 total→ Ordinary Shares (3,588 underlying) - Exercise/Conversion
Restricted Stock Units
[F3][F4]2026-05-15−862→ 103,560 total→ Ordinary Shares (862 underlying) - Exercise/Conversion
Restricted Stock Units
[F3][F5]2026-05-15−2,308→ 101,252 total→ Ordinary Shares (2,308 underlying)
Footnotes (8)
- [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.
- [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.
- [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.
- [F6]Ordinary Shares withheld to satisfy tax withholding requirements on vesting of RSUs.
- [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.
- [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.
Signature
/s/ George Kanelos, as Attorney-in-Fact for Laura Kathleen Bartels|2026-05-19