PTCT (PTC Therapeutics, Inc.)

Insider Trading Activity

Every open-market purchase and sale reported by PTCT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
31
code S
Reporting Insiders
25
current holders
PTCT — Recent Form 4 Transactions (latest 2026-09-11)
FiledInsiderRole TypeSharesValue
2026-09-11 MICHAEL SCHMERTZLER Director Sell
2026-08-28 MICHAEL SCHMERTZLER Director Sell
2026-08-21 MICHAEL SCHMERTZLER Director Sell
2026-08-19 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-08-06 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-08-06 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-07-30 Hege Elisabeth Sollie-Zetlmayer Director A
2026-07-16 Pierre Gravier CHIEF FINANCIAL OFFICER Sell
2026-07-13 Mary L. Smith Director MIXED
2026-07-13 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER MIXED
2026-07-08 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-07-08 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER MIXED
2026-06-26 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER MIXED
2026-06-24 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER MIXED
2026-06-22 Christine Marie Utter SVP, CHIEF ACCOUNTING OFFICER MIXED
2026-06-22 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-06-12 Eric Pauwels CHIEF BUSINESS OFFICER MIXED
2026-05-19 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-05-15 Matthew B. Klein CHIEF EXECUTIVE OFFICER MIXED
2026-05-12 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-04-23 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-04-08 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-04-06 Lee Scott Golden EVP & CHIEF MEDICAL OFFICER Sell
2026-04-03 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER Sell
2026-03-26 Jessica Caroline Chutter Director A
2026-03-13 Matthew B. Klein CHIEF EXECUTIVE OFFICER MIXED
2026-03-12 Stephanie Okey Director MIXED
2026-03-09 Stephanie Okey Director Sell
2026-03-09 Lee Scott Golden EVP & CHIEF MEDICAL OFFICER Sell
2026-03-09 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER Sell
2026-02-23 Mark Elliott Boulding EXEC. VP AND CLO Sell
2026-02-20 Eric Pauwels CHIEF BUSINESS OFFICER Sell
2026-02-20 Pierre Gravier CHIEF FINANCIAL OFFICER Sell
2026-02-20 Lee Scott Golden EVP & CHIEF MEDICAL OFFICER Sell
2026-02-20 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER Sell
2026-02-20 Christine Marie Utter SVP, CHIEF ACCOUNTING OFFICER Sell
2026-02-20 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-02-19 Mark Elliott Boulding EXEC. VP AND CLO MIXED
2026-01-12 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-01-12 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER Sell
2026-01-12 Christine Marie Utter SVP, CHIEF ACCOUNTING OFFICER Sell
2026-01-12 Lee Scott Golden EVP & CHIEF MEDICAL OFFICER Sell
2026-01-12 Eric Pauwels CHIEF BUSINESS OFFICER Sell
2026-01-12 Mark Elliott Boulding EXEC. VP AND CLO Sell
2026-01-08 Christine Marie Utter SVP, CHIEF ACCOUNTING OFFICER Sell
2026-01-08 Eric Pauwels CHIEF BUSINESS OFFICER Sell
2026-01-08 Neil Gregory Almstead CHIEF TECHNICAL OPS OFFICER Sell
2026-01-08 Pierre Gravier CHIEF FINANCIAL OFFICER Sell
2026-01-08 Matthew B. Klein CHIEF EXECUTIVE OFFICER Sell
2026-01-08 Lee Scott Golden EVP & CHIEF MEDICAL OFFICER Sell
PTCT — Current Insider Holders
InsiderRole Shares HeldValue
10%+ Owner 2,441,504
Director 1,490,432
Director 1,083,333
Director 1,050,104
Director 898,664
CHIEF EXECUTIVE OFFICER 383,868
276,853
CHIEF EXECUTIVE OFFICER 221,865
EXEC. VP AND CLO 105,272
CHIEF BUSINESS OFFICER 90,977
SVP, CHIEF ACCOUNTING OFFICER 89,885
CHIEF FINANCIAL OFFICER 83,986
EVP & CHIEF MEDICAL OFFICER 79,115
CHIEF TECHNICAL OPS OFFICER 63,198
Chief Operating Officer 57,466
Director 52,526
Chief Commercial Officer 42,955
President 41,590
CHIEF FINANCIAL OFFICER 38,925
Chief Financial Officer 37,850
Director 29,017
Director 22,500
Director 22,500
Director 21,813
Director 21,451
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the PTCT quote page; the site-wide leaderboard is on the insider transactions hub.