PTC Therapeutics, Inc. (PTCT) Insider Trading

Over the last 3 months, PTCT insiders made 0 open-market buys and 47 sales, a net sale of -$18.5M (SEC Form 4). Over the last 6 months, 287 institutions increased and 219 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
47
Net (3m)
-$18.5M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price -6.4%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 28, 2026SCHMERTZLER MICHAELdirectorSell11,890$71.55
Aug 28, 2026SCHMERTZLER MICHAELdirectorSell5,626$73.18
Aug 28, 2026SCHMERTZLER MICHAELdirectorSell610$72.22
Aug 28, 2026SCHMERTZLER MICHAELdirectorSell6,874$72.74
Aug 21, 2026SCHMERTZLER MICHAELdirectorSell7,165$73.67
Aug 21, 2026SCHMERTZLER MICHAELdirectorSell9,419$70.78
Aug 21, 2026SCHMERTZLER MICHAELdirectorSell5,335$72.86
Aug 21, 2026SCHMERTZLER MICHAELdirectorSell2,390$71.88
Aug 21, 2026SCHMERTZLER MICHAELdirectorSell691$72.92
Aug 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell969$72.90
Aug 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell1,844$72.39
Aug 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption2,813$25.69
Aug 6, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell10,292$68.57
Jul 30, 2026Sollie-Zetlmayer Hege ElisabethdirectorGrant4,000—
Jul 30, 2026Sollie-Zetlmayer Hege ElisabethdirectorGrant1,738$75.39
Jul 30, 2026Sollie-Zetlmayer Hege ElisabethdirectorGrant3,475$75.39
Jul 30, 2026Sollie-Zetlmayer Hege ElisabethdirectorGrant2,000—
Jul 16, 2026Gravier Pierreofficer: CHIEF FINANCIAL OFFICERSell3,494$80.35
Jul 13, 2026Smith Mary L.directorOption10,000$42.95
Jul 13, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICEROption2,464$46.54
Jul 13, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell2,464$90.25
Jul 13, 2026Smith Mary L.directorSell5,834$90.00
Jul 13, 2026Smith Mary L.directorOption5,834$42.95
Jul 8, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICEROption24,613$39.42
Jul 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell833$84.41
Jul 8, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell10,090$86.32
Jul 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell313$83.10
Jul 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption2,226$39.42
Jul 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell387$83.10
Jul 8, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell2,474$87.03

Source: PTCT SEC Form 4 filings, latest Aug 28, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their PTCT positions over the last 6 months (SEC Form 13F).

Increased
287
New positions
139
Reduced
219
Sold out
45
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased14.0MAug 7, 2026
BLACKROCK, INC.Increased12.9MMay 13, 2026
RTW INVESTMENTS, LPUnchanged7.7MAug 14, 2026
RTW INVESTMENTS, LPUnchanged7.7MMay 15, 2026
Jupiter Topco LLCNew Position7.2MAug 14, 2026
JANUS HENDERSON GROUP PLCIncreased7.2MMay 18, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased4.9MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position4.8MMay 8, 2026
STATE STREET CORPIncreased4.6MAug 7, 2026
STATE STREET CORPIncreased4.3MMay 15, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased4.1MAug 14, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3.9MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased3.7MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position3.7MMay 15, 2026
TORONTO DOMINION BANKReduced3.0MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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