Updated Jul 16, 2026
Abbey William has filed 8 SEC Form 4 filings across 2 companies in the last 90 days — selling. Lifetime open-market sales: $12.02M.

| Role | Director |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-03 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 3.9K | $415.52 | $1.63M |
| 2026-06-03 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 2.6K | $383.73 | $1.01M |
| 2026-06-01 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 4.2K | $343.81 | $1.44M |
| 2026-05-26 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 2.3K | $305.82 | $703K |
| 2026-05-22 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 4.7K | $287.03 | $1.34M |
| 2026-05-21 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 5.1K | $257.18 | $1.30M |
| 2026-05-21 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 10.9K | $224.14 | $2.44M |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 1.6K | $199.00 | $314K |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 1.6K | $221.99 | $350K |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | S — Open-market sale | 7.0K | $212.55 | $1.49M |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | F — Tax withholding / forfeiture | 15.3K | $209.16 | $3.20M |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | M — Option exercise | 4.7K | — | |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | A — Grant or award | 14.4K | — | |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | M — Option exercise | 1.7K | — | |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | A — Grant or award | 4.4K | — | |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | M — Option exercise | 1.8K | — | |
| 2026-05-19 | ARM | ARM HOLDINGS PLC /UK | A — Grant or award | 4.5K | — | |
| 2026-02-12 | NPO | Enpro Inc. | A — Grant or award | 567 | $246.91 | $140K |
Abbey William is a corporate insider — currently tracked as Director of Enpro Inc. (NPO). InsiderAlpha tracks every SEC Form 4 filing in real time.
8 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 0 open-market purchases () and 10 open-market sales ($12.02M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Abbey William profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.