PTCT — PTC THERAPEUTICS, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Healthcare
Measured signals that fired on PTCT
| date | signal | measured base rate |
|---|---|---|
| 2026-08-03 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-14 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-07 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-06-18 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-03 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-05-08 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-20 | SCHMERTZLER MICHAEL Director | Open-market sale 10b5-1 plan | 9.4K | 70.78 | 666.7K |
| 2026-08-20 | SCHMERTZLER MICHAEL Director | Open-market sale 10b5-1 plan | 2.4K | 71.88 | 171.8K |
| 2026-08-20 | SCHMERTZLER MICHAEL Director | Open-market sale 10b5-1 plan | 691 | 72.92 | 50.4K |
| 2026-08-19 | SCHMERTZLER MICHAEL Director | Open-market sale 10b5-1 plan | 7.2K | 73.67 | 527.8K |
| 2026-08-19 | SCHMERTZLER MICHAEL Director | Open-market sale 10b5-1 plan | 5.3K | 72.86 | 388.7K |
| 2026-08-17 | Boulding Mark Elliott EXEC. VP AND CLO | Open-market sale 10b5-1 plan | 1.8K | 72.39 | 133.5K |
| 2026-08-17 | Boulding Mark Elliott EXEC. VP AND CLO | Option exercise 10b5-1 plan | 2.8K | 25.69 | 72.3K |
| 2026-08-17 | Boulding Mark Elliott EXEC. VP AND CLO | Open-market sale 10b5-1 plan | 969 | 72.90 | 70.6K |
| 2026-08-04 | Klein Matthew B. CHIEF EXECUTIVE OFFICER | Open-market sale 10b5-1 plan | 10.3K | 68.57 | 705.7K |
| 2026-07-28 | Sollie-Zetlmayer Hege Elisabeth Director | Grant or award | 4.0K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 882.2M | 12.9M |
| RTW INVESTMENTS, LP | 527.8M | 7.7M |
| JANUS HENDERSON GROUP PLC | 490.0M | 7.2M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 327.3M | 4.8M |
| STATE STREET CORP | 296.1M | 4.3M |
| WELLINGTON MANAGEMENT GROUP LLP | 268.6M | 3.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | 250.5M | 3.7M |
| TORONTO DOMINION BANK | 206.2M | 3.0M |
| GEODE CAPITAL MANAGEMENT, LLC | 150.6M | 2.2M |
| ARMISTICE CAPITAL, LLC | 141.3M | 2.1M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 144 | 2026-08-19 | — | on EDGAR ↗ |
| 4 | 2026-08-19 | 2026-08-17 | on EDGAR ↗ |
| 144 | 2026-08-17 | — | on EDGAR ↗ |
| 8-K | 2026-08-13 | 2026-08-12 | on EDGAR ↗ |
| 4 | 2026-08-06 | 2026-08-04 | on EDGAR ↗ |
| 144 | 2026-08-04 | — | on EDGAR ↗ |
| 4 | 2026-07-30 | 2026-07-28 | on EDGAR ↗ |
| 3 | 2026-07-30 | 2026-07-28 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- PTC THERAPEUTICS, INC. (PTCT) filed form 4 · 2026-08-19 · SEC EDGAR
- PTC THERAPEUTICS, INC. (PTCT) filed form 144 · 2026-08-19 · SEC EDGAR
- PTC THERAPEUTICS, INC. (PTCT) filed form 144 · 2026-08-17 · SEC EDGAR
- PTC Therapeutics, Inc. (PTCT) filed form 8-K · 2026-08-13 · SEC EDGAR
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