Updated Jul 16, 2026
Almstead Neil Gregory has filed 5 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $20.86M.

| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-13 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale [10b5-1] | 2.5K | $90.25 | $222K |
| 2026-07-13 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise [10b5-1] | 2.5K | $46.54 | $115K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 9.3K | $89.44 | $831K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 11.4K | $89.03 | $1.01M |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 4.0K | $87.17 | $345K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 24.6K | $39.42 | $970K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 2.5K | $87.03 | $215K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 2.5K | $39.42 | $98K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 10.1K | $86.32 | $871K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 8.8K | $85.35 | $750K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 18.9K | $38.10 | $719K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 385 | $86.34 | $33K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 426 | $85.28 | $36K |
| 2026-07-08 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 811 | $38.10 | $31K |
| 2026-06-30 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 7.7K | $85.26 | $658K |
| 2026-06-30 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 7.7K | $38.10 | $294K |
| 2026-06-30 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 412 | $85.23 | $35K |
| 2026-06-30 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 412 | $38.10 | $16K |
| 2026-06-26 | PTCT | PTC THERAPEUTICS, INC. | S — Open-market sale | 100 | $87.00 | $9K |
| 2026-06-26 | PTCT | PTC THERAPEUTICS, INC. | M — Option exercise | 100 | $39.42 | $4K |
Almstead Neil Gregory is a corporate insider — currently tracked as Insider of PTC THERAPEUTICS, INC. (PTCT). InsiderAlpha tracks every SEC Form 4 filing in real time.
5 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 44 open-market sales ($20.86M) 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 Almstead Neil Gregory profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.