InsiderTrades

Form 4 for PTCT PTC THERAPEUTICS, INC.

Accepted 2026-08-28 17:20:06 ET · period of report 2026-08-26 · accession 0001288952-26-000006 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
MTI 2026-08-28 17:20 2026-08-26+ PTCT SCHMERTZLER MICHAEL Dir S - Sale $72.26 -25.0K 1.34M -2% -$1.81M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-26 S D 6,874 $72.74 1,354,720 I See footnote — — (F1) This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by Section Six Partners, L.P., of which the Reporting Person is a general partner and limited partner, on May 14, 2026. (F2) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $72.02 to $73.01 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. (F3) Represents shares of common stock held by Section Six Partners, L.P. The Reporting Person is a general and limited partner of Section Six Partners, L.P. The Reporting Person disclaims beneficial ownership of the shares of common stock held by Section Six Partners, L.P. except to the extent of his pecuniary interest therein.
2 Common Common Stock 2026-08-26 S D 5,626 $73.18 1,349,094 I See footnote — — (F1) This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by Section Six Partners, L.P., of which the Reporting Person is a general partner and limited partner, on May 14, 2026. (F4) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $73.02 to $73.40 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. (F3) Represents shares of common stock held by Section Six Partners, L.P. The Reporting Person is a general and limited partner of Section Six Partners, L.P. The Reporting Person disclaims beneficial ownership of the shares of common stock held by Section Six Partners, L.P. except to the extent of his pecuniary interest therein.
3 Common Common Stock 2026-08-27 S D 11,890 $71.55 1,337,204 I See footnote — — (F1) This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by Section Six Partners, L.P., of which the Reporting Person is a general partner and limited partner, on May 14, 2026. (F5) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $70.94 to $71.92 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. (F3) Represents shares of common stock held by Section Six Partners, L.P. The Reporting Person is a general and limited partner of Section Six Partners, L.P. The Reporting Person disclaims beneficial ownership of the shares of common stock held by Section Six Partners, L.P. except to the extent of his pecuniary interest therein.
4 Common Common Stock 2026-08-27 S D 610 $72.22 1,336,594 I See footnote — — (F1) This transaction was effected pursuant to a written Rule 10b5-1 plan adopted by Section Six Partners, L.P., of which the Reporting Person is a general partner and limited partner, on May 14, 2026. (F6) This price represents the weighted average price of sale transactions that were executed in multiple trades at prices ranging from $72.11 to $72.25 per share. The Reporting Person hereby undertakes, upon request by the SEC staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. (F3) Represents shares of common stock held by Section Six Partners, L.P. The Reporting Person is a general and limited partner of Section Six Partners, L.P. The Reporting Person disclaims beneficial ownership of the shares of common stock held by Section Six Partners, L.P. except to the extent of his pecuniary interest therein.