PTC Therapeutics, Inc. (PTCT) Insider Trading

Over the last 3 months, PTCT insiders made 0 open-market buys and 22 sales, a net sale of -$7.8M (SEC Form 4). Over the last 6 months, 293 institutions increased and 198 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
22
Net (3m)
-$7.8M
Insider trades by month Buys Sells
Dec
Jan
Feb
Mar
Apr
May
Context3-month price +6.8%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
May 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell456$72.67
May 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption2,812$25.69
May 19, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell2,356$72.08
May 15, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell2,100$73.08
May 15, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell2,572$72.46
May 15, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell7,221$73.08
May 15, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERGrant12,500—
May 15, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell679$73.06
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell1,900$79.31
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption800$46.54
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell840$78.23
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell200$78.00
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption2,740$46.54
May 12, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell600$79.28
Apr 23, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell2,850$70.91
Apr 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOOption2,265$39.42
Apr 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell1,443$69.75
Apr 8, 2026Boulding Mark Elliottofficer: EXEC. VP AND CLOSell822$68.91
Apr 6, 2026Golden Lee Scottofficer: EVP & CHIEF MEDICAL OFFICERSell829$67.99
Apr 3, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell39,393$68.89
Apr 3, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell12,530$69.50
Apr 3, 2026Almstead Neil Gregoryofficer: CHIEF TECHNICAL OPS OFFICERSell80$70.30
Mar 26, 2026Chutter Jessica CarolinedirectorGrant3,475$64.54
Mar 26, 2026Chutter Jessica CarolinedirectorGrant3,333—
Mar 26, 2026Chutter Jessica CarolinedirectorGrant4,000—
Mar 26, 2026Chutter Jessica CarolinedirectorGrant2,896$64.54
Mar 13, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERGrant12,500—
Mar 13, 2026Klein Matthew B.director, officer: CHIEF EXECUTIVE OFFICERSell2,662$64.08
Mar 12, 2026Okey StephaniedirectorSell14,000$70.00
Mar 12, 2026Okey StephaniedirectorOption1,167$33.63

Source: PTCT SEC Form 4 filings, latest May 19, 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
293
New positions
142
Reduced
198
Sold out
90
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased12.9MMay 13, 2026
BLACKROCK, INC.Increased12.8MFeb 12, 2026
VANGUARD GROUP INCIncreased8.8MJan 29, 2026
RTW INVESTMENTS, LPUnchanged7.7MFeb 17, 2026
RTW INVESTMENTS, LPUnchanged7.7MMay 15, 2026
JANUS HENDERSON GROUP PLCIncreased7.2MMay 18, 2026
JANUS HENDERSON GROUP PLCIncreased4.9MFeb 17, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position4.8MMay 8, 2026
STATE STREET CORPIncreased4.3MMay 15, 2026
STATE STREET CORPIncreased4.2MFeb 13, 2026
TORONTO DOMINION BANKIncreased4.1MFeb 17, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3.9MMay 15, 2026
WELLINGTON MANAGEMENT GROUP LLPReduced3.9MFeb 17, 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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