As of the latest Form 4 filed Jul 8, 2026.
What PTC Therapeutics Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 67 most recent filings for PTCT.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-08 | 2026-07-07 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | SSale | −9.29K | $89.44 | $831K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-07 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −11.4K | $89.03 | $1.01M | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-07 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −3.96K | $87.17 | $345K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-07 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +24.6K | $39.42 | $970K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott EXEC. VP AND CLO | SSale | −745.00 | $86.38 | $64.4K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −645.00 | $85.84 | $55.4K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −1.04K | $84.41 | $87.4K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −387.00 | $83.10 | $32.2K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +2.81K | $46.54 | $131K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −601.00 | $86.38 | $51.9K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −519.00 | $85.84 | $44.6K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −833.00 | $84.41 | $70.3K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −313.00 | $83.10 | $26.0K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +2.27K | $39.42 | $89.3K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | SSale | −2.47K | $87.03 | $215K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +2.47K | $39.42 | $97.5K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −10.1K | $86.32 | $871K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −8.79K | $85.35 | $750K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +18.9K | $38.10 | $719K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −385.00 | $86.34 | $33.2K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −426.00 | $85.28 | $36.3K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +811.00 | $38.10 | $30.9K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-26 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | SSale | −7.72K | $85.26 | $658K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-26 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +7.72K | $38.10 | $294K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-26 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −412.00 | $85.23 | $35.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-30 | 2026-06-26 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +412.00 | $38.10 | $15.7K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | SSale | −100.00 | $87.00 | $8.70K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +100.00 | $39.42 | $3.94K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −11.3K | $86.51 | $981K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −8.52K | $85.26 | $727K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +19.9K | $38.10 | $757K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −419.00 | $86.39 | $36.2K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −582.00 | $85.24 | $49.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-25 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +1.00K | $38.10 | $38.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −4.92K | $85.03 | $419K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +4.92K | $38.10 | $188K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −401.00 | $85.01 | $34.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-26 | 2026-06-24 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +401.00 | $38.10 | $15.3K | Yes (planned) | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | SSale | −11.6K | $81.21 | $944K | Yes (planned) | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | SSale | −12.1K | $80.61 | $978K | Yes (planned) | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | Almstead Neil Gregory, CHIEF TECHNICAL OPS OFFICER | MExercise | +23.7K | $25.69 | $610K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Utter Christine Marie SVP, CHIEF ACCOUNTING OFFICER | SSale | −19.7K | $75.56 | $1.49M | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Utter Christine Marie, SVP, CHIEF ACCOUNTING OFFICER | MExercise | +19.7K | $25.69 | $506K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott EXEC. VP AND CLO | SSale | −309.00 | $79.25 | $24.5K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −1.70K | $78.50 | $134K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +2.01K | $46.54 | $93.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −1.85K | $79.24 | $147K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −6.60K | $78.50 | $518K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +8.51K | $46.54 | $396K | Yes (planned) | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Pauwels Eric CHIEF BUSINESS OFFICER | SSale | −17.6K | $75.00 | $1.32M | Yes (planned) | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Pauwels Eric, CHIEF BUSINESS OFFICER | MExercise | +17.6K | $18.01 | $316K | Yes (planned) | Form 4 ↗ |
| 2026-06-12 | 2026-06-10 | Pauwels Eric, CHIEF BUSINESS OFFICER | SSale | −3.71K | $75.00 | $278K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott EXEC. VP AND CLO | SSale | −600.00 | $79.28 | $47.6K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −200.00 | $78.00 | $15.6K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +800.00 | $46.54 | $37.2K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −1.90K | $79.31 | $151K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −840.00 | $78.23 | $65.7K | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +2.74K | $46.54 | $128K | Yes (planned) | Form 4 ↗ |
| 2026-04-23 | 2026-04-21 | Klein Matthew B. CHIEF EXECUTIVE OFFICER | SSale | −2.85K | $70.91 | $202K | Yes (planned) | Form 4 ↗ |
| 2026-04-08 | 2026-04-06 | Boulding Mark Elliott EXEC. VP AND CLO | SSale | −1.44K | $69.75 | $101K | Yes (planned) | Form 4 ↗ |
| 2026-04-08 | 2026-04-06 | Boulding Mark Elliott, EXEC. VP AND CLO | SSale | −822.00 | $68.91 | $56.6K | Yes (planned) | Form 4 ↗ |
| 2026-04-08 | 2026-04-06 | Boulding Mark Elliott, EXEC. VP AND CLO | MExercise | +2.27K | $39.42 | $89.3K | Yes (planned) | Form 4 ↗ |
| 2026-04-06 | 2026-04-02 | Golden Lee Scott EVP & CHIEF MEDICAL OFFICER | SSale | −829.00 | $67.99 | $56.4K | Yes (planned) | Form 4 ↗ |
| 2026-03-26 | 2026-03-24 | Chutter Jessica Caroline Director | AAward | +3.33K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-03-26 | 2026-03-24 | Chutter Jessica Caroline, Director | AAward | +4.00K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-03-13 | 2026-03-12 | Klein Matthew B. CHIEF EXECUTIVE OFFICER | SSale | −2.66K | $64.08 | $171K | Yes (planned) | Form 4 ↗ |
| 2026-03-13 | 2026-03-11 | Klein Matthew B., CHIEF EXECUTIVE OFFICER | AAward | +12.5K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also PTCT’s full analysis or the market-wide insider trading feed. The tabs above jump to PTCT’s other SEC data.
Source: SEC Form 4 filings for PTCT, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.