Neil Gregory Almstead Insider Trading Activity
Corporate InsiderCHIEF TECHNICAL OPS OFFICER · CIK 1578850
Neil Gregory Almstead has been net-selling over the last 12 months with 0 purchases and 49 sales across 1 company.
PTCT is the most-traded position with 49 trades. The largest single transaction was a sale of PTCT for $2.7M on Apr 1, 2026.
Performance Scorecard
Forward stock performance after each transaction by Neil Gregory Almstead. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +3.8% | 83% | 41 |
| 90 days | — | +6.0% | 71% | 41 |
| 120 days | — | +10.3% | 76% | 38 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersPTCT · PTC THERAPEUTICS, INC.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Jul 9, 2026 | PTCT | Sell | 2,464 | $90.25 | $222K | −3.9% | CHIEF TECHNICAL OPS OFFICER | |
Jun 25, 2026 | PTCT | Sell | 100 | $87.00 | $9K | −0.2% | CHIEF TECHNICAL OPS OFFICER | |
Jun 25, 2026 | PTCT | Sell | 582 | $85.24 | $50K | −1.0% | CHIEF TECHNICAL OPS OFFICER | |
Jun 25, 2026 | PTCT | Sell | 419 | $86.39 | $36K | −0.7% | CHIEF TECHNICAL OPS OFFICER | |
Jun 25, 2026 | PTCT | Sell | 8,522 | $85.26 | $727K | −10.7% | CHIEF TECHNICAL OPS OFFICER | |
Jun 25, 2026 | PTCT | Sell | 11,337 | $86.51 | $981K | −15.9% | CHIEF TECHNICAL OPS OFFICER | |
Jun 24, 2026 | PTCT | Sell | 4,922 | $85.03 | $419K | −7.6% | CHIEF TECHNICAL OPS OFFICER | |
Jun 24, 2026 | PTCT | Sell | 401 | $85.01 | $34K | −0.7% | CHIEF TECHNICAL OPS OFFICER | |
Apr 1, 2026 | PTCT | Sell | 12,530 | $69.50 | $871K | −17.2% | CHIEF TECHNICAL OPS OFFICER | |
Apr 1, 2026 | PTCT | Sell | 39,393 | $68.89 | $2.7M | −35.1% | CHIEF TECHNICAL OPS OFFICER | |
Apr 1, 2026 | PTCT | Sell | 80 | $70.30 | $6K | −0.1% | CHIEF TECHNICAL OPS OFFICER | |
Mar 5, 2026 | PTCT | Sell | 3,989 | $63.38 | $253K | −59.3% | CHIEF TECHNICAL OPS OFFICER | |
Feb 18, 2026 | PTCT | Sell | 65 | $69.36 | $5K | −1.0% | CHIEF TECHNICAL OPS OFFICER | |
Feb 18, 2026 | PTCT | Sell | 3,056 | $69.36 | $212K | −2.7% | CHIEF TECHNICAL OPS OFFICER | |
Jan 8, 2026 | PTCT | Sell | 881 | $76.45 | $67K | −0.8% | CHIEF TECHNICAL OPS OFFICER | |
Jan 8, 2026 | PTCT | Sell | 59 | $76.45 | $5K | −0.9% | CHIEF TECHNICAL OPS OFFICER | |
Jan 7, 2026 | PTCT | Sell | 1,026 | $77.48 | $79K | −0.9% | CHIEF TECHNICAL OPS OFFICER | |
Jan 7, 2026 | PTCT | Sell | 52 | $77.48 | $4K | −0.8% | CHIEF TECHNICAL OPS OFFICER | |
Jan 6, 2026 | PTCT | Sell | 1,279 | $76.95 | $98K | −1.1% | CHIEF TECHNICAL OPS OFFICER | |
Jan 6, 2026 | PTCT | Sell | 54 | $76.95 | $4K | −0.8% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 689 | $82.63 | $57K | −0.7% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 862 | $83.35 | $72K | −0.8% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 289 | $84.61 | $24K | −0.3% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 180 | $85.17 | $15K | −0.2% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 2,790 | $82.82 | $231K | −2.6% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 3,663 | $83.41 | $306K | −3.4% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 1,757 | $84.56 | $149K | −1.7% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 200 | $85.37 | $17K | −0.2% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 13,514 | $82.55 | $1.1M | −9.1% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 21,844 | $83.33 | $1.8M | −16.2% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 9,171 | $84.42 | $774K | −8.1% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 3,095 | $85.15 | $264K | −3.0% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 4,834 | $83.39 | $403K | −4.5% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 2,621 | $84.54 | $222K | −2.5% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 3,744 | $82.61 | $309K | −3.3% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 911 | $82.63 | $75K | −0.9% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 990 | $83.44 | $83K | −1.0% | CHIEF TECHNICAL OPS OFFICER | |
Nov 25, 2025 | PTCT | Sell | 574 | $84.67 | $49K | −0.6% | CHIEF TECHNICAL OPS OFFICER | |
Nov 24, 2025 | PTCT | Sell | 6,101 | $80.17 | $489K | −5.7% | CHIEF TECHNICAL OPS OFFICER | |
Nov 24, 2025 | PTCT | Sell | 21,206 | $80.19 | $1.7M | −17.4% | CHIEF TECHNICAL OPS OFFICER | |
Nov 24, 2025 | PTCT | Sell | 4,715 | $80.15 | $378K | −4.5% | CHIEF TECHNICAL OPS OFFICER | |
Nov 24, 2025 | PTCT | Sell | 1,650 | $80.14 | $132K | −1.6% | CHIEF TECHNICAL OPS OFFICER | |
Nov 24, 2025 | PTCT | Sell | 1,900 | $80.14 | $152K | −1.9% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 1,609 | $65.46 | $105K | −1.5% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 23,419 | $65.45 | $1.5M | −15.4% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 23,863 | $66.45 | $1.6M | −18.5% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 4,276 | $67.15 | $287K | −4.1% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 73 | $67.16 | $5K | −0.1% | CHIEF TECHNICAL OPS OFFICER | |
Oct 3, 2025 | PTCT | Sell | 1,760 | $66.56 | $117K | −1.7% | CHIEF TECHNICAL OPS OFFICER |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| PTCT | PTC THERAPEUTICS, INC. | 49 | $19.3M |
Other insiders at PTC THERAPEUTICS, INC.
9 other tracked filers at PTCT.