🕵️ PTC Therapeutics, Inc. ($PTCT)
SEC insider & ownership activity, last 12 months · CIK 1070081 · every row links its SEC filing
Over the last 12 months insiders sold $64.9M with no open-market buying against it. Almstead Neil Gregory sold $26.0M through a 10b5-1 trading plan in 62 lots (Oct–Jul). 5 planned sales are pending, the largest $2.2M (Almstead Neil Gregory). No red-flag 8-Ks in the window.
🚨 7 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
API and the
alerts bot.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 13 sellers, $64.9M (232 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Almstead Neil Gregory | 0 | – | 62 | $26.0M | Jul 9, 2026 |
| Pauwels Eric | 0 | – | 36 | $9.7M | Jun 10, 2026 |
| Boulding Mark Elliott | 0 | – | 69 | $8.8M | Jul 6, 2026 |
| Reeve Emma | 0 | – | 19 | $5.2M | Jan 5, 2026 |
| Matthew B Klein | 0 | – | 13 | $4.1M | May 14, 2026 |
| Jacobson Allan Steven | 0 | – | 12 | $3.0M | Nov 25, 2025 |
| Utter Christine Marie | 0 | – | 5 | $1.9M | Jun 17, 2026 |
| Stephanie Okey | 0 | – | 3 | $1.5M | Mar 10, 2026 |
| Mary L. Smith | 0 | – | 2 | $1.4M | Jul 9, 2026 |
| Golden Lee Scott | 0 | – | 6 | $1.1M | Apr 2, 2026 |
| Steele Glenn JR MD PHD | 0 | – | 1 | $916K | Jan 2, 2026 |
| David P. Southwell | 0 | – | 1 | $700K | Sep 9, 2025 |
| Gravier Pierre | 0 | – | 3 | $653K | Jul 14, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.8% | 13G | Dec 4, 2025 | filing ↗ | |
| Janus Henderson Group PLC | 8.7% | 13G | May 15, 2026 | filing ↗ | |
| Wellington Management Company LLP | 6.1% | 13G | Feb 10, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 5.9% | 13G | Apr 29, 2026 | filing ↗ | |
| State Street Corporation | 5.2% | 13G | Feb 9, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Gravier Pierre | $281K | Jul 14, 2026 | filing ↗ |
| Almstead Neil Gregory | $222K | Jul 9, 2026 | filing ↗ |
| Mary L. Smith | $1.4M | Jul 9, 2026 | filing ↗ |
| Almstead Neil Gregory | $2.2M | Jul 7, 2026 | filing ↗ |
| Almstead Neil Gregory | $1.9M | Jul 6, 2026 | filing ↗ |
| Boulding Mark Elliott | $427K | Jul 6, 2026 | filing ↗ |
| Almstead Neil Gregory | $693K | Jun 26, 2026 | filing ↗ |
| Almstead Neil Gregory | $1.8M | Jun 25, 2026 | filing ↗ |
| Almstead Neil Gregory | $453K | Jun 24, 2026 | filing ↗ |
| Almstead Neil Gregory | $1.9M | Jun 22, 2026 | filing ↗ |
| Boulding Mark Elliott | $828K | Jun 17, 2026 | filing ↗ |
| Utter Christine Marie | $1.5M | Jun 17, 2026 | filing ↗ |
| Pauwels Eric | $1.6M | Jun 10, 2026 | filing ↗ |
| Boulding Mark Elliott | $204K | May 15, 2026 | filing ↗ |
| Matthew B. Klein | $186K | May 14, 2026 | filing ↗ |
| Matthew B. Klein | $731K | May 14, 2026 | filing ↗ |
| Boulding Mark Elliott | $280K | May 8, 2026 | filing ↗ |
| Matthew B. Klein | $202K | Apr 21, 2026 | filing ↗ |
| Boulding Mark Elliott | $157K | Apr 6, 2026 | filing ↗ |
| Golden Lee Scott | $56K | Apr 2, 2026 | filing ↗ |
| Almstead Neil Gregory | $3.6M | Apr 1, 2026 | filing ↗ |
| Matthew B. Klein | $171K | Mar 12, 2026 | filing ↗ |
| Okey Stephanie | $1.1M | Mar 10, 2026 | filing ↗ |
| Okey Stephanie | $401K | Mar 5, 2026 | filing ↗ |
| Almstead Zheng Yang | $253K | Mar 5, 2026 | filing ↗ |
| Golden Lee Scott | $634K | Mar 5, 2026 | filing ↗ |
| Boulding Mark Elliott | $207K | Feb 19, 2026 | filing ↗ |
| Pauwels Eric | $209K | Feb 18, 2026 | filing ↗ |
| Almstead Zheng Yang | $5K | Feb 18, 2026 | filing ↗ |
| Almstead Neil Gregory | $212K | Feb 18, 2026 | filing ↗ |
| Gravier Pierre | $208K | Feb 18, 2026 | filing ↗ |
| Utter Christine Marie | $173K | Feb 18, 2026 | filing ↗ |
| Boulding Mark Elliott | $214K | Feb 18, 2026 | filing ↗ |
| Golden Lee Scott | $172K | Feb 18, 2026 | filing ↗ |
| Matthew B. Klein | $511K | Feb 18, 2026 | filing ↗ |
| Boulding Mark Elliott | $194K | Feb 17, 2026 | filing ↗ |
| Boulding Mark Elliott | $180K | Jan 9, 2026 | filing ↗ |
| Pauwels Eric | $214K | Jan 9, 2026 | filing ↗ |
| Golden Lee Scott | $66K | Jan 8, 2026 | filing ↗ |
| Pauwels Eric | $241K | Jan 8, 2026 | filing ↗ |
| Matthew B. Klein | $192K | Jan 8, 2026 | filing ↗ |
| Almstead Zheng Yang | $5K | Jan 8, 2026 | filing ↗ |
| Almstead Neil Gregory | $67K | Jan 8, 2026 | filing ↗ |
| Pauwels Eric | $111K | Jan 8, 2026 | filing ↗ |
| Utter Christine Marie | $79K | Jan 8, 2026 | filing ↗ |
| Boulding Mark Elliott | $98K | Jan 8, 2026 | filing ↗ |
| Boulding Mark Elliott | $210K | Jan 8, 2026 | filing ↗ |
| Matthew B. Klein | $234K | Jan 7, 2026 | filing ↗ |
| Boulding Mark Elliott | $261K | Jan 7, 2026 | filing ↗ |
| Golden Lee Scott | $50K | Jan 7, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jun 18, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 18, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jun 18, 2026 | filing ↗ |
| Other events (8.01) | Jun 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 18, 2026 | filing ↗ |
| Other events (8.01) | Jun 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 15, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 8, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 2, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 24, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 24, 2026 | filing ↗ |
| Earnings (2.02) | Feb 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 12, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 29, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |