PTCT

insider transactions

PTC THERAPEUTICS, INC. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-253.5K

0 buy · 253.5K sell

Net value · 365d

-$16.9M

$0 in · $16.9M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 253.5K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Sell·S
Jun 10, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$0

17.6K sh

Own -100%
Sell·S
Jun 10, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$1.3M

17.6K sh · $75.00

Own -19%
Exercise·M
Jun 10, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$316.4K

17.6K sh · $18.01

Own +24%
Sell·S
Jun 10, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$278.3K

3.7K sh · $75.00

Own -5%
Exercise·M
May 15, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.8K sh

Own +17%
Sell·S
May 15, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$33.1K

456 sh · $72.67

Own -0%
Sell·S
May 15, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$169.8K

2.4K sh · $72.08

Own -2%
Exercise·M
May 15, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$72.2K

2.8K sh · $25.69

Own +3%
Sell·S
May 14, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$186.4K

2.6K sh · $72.46

Own -1%
Sell·S
May 14, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$153.5K

2.1K sh · $73.08

Own -1%
Sell·S
May 14, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$527.7K

7.2K sh · $73.08

Own -2%
Sell·S
May 14, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$49.6K

679 sh · $73.06

Own -0%
Grant·A
May 13, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$0

12.5K sh

Own +3%
Exercise·M
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

800 sh

Own +2%
Exercise·M
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.7K sh

Own +7%
Sell·S
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$47.6K

600 sh · $79.28

Own -1%
Sell·S
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$15.6K

200 sh · $78.00

Own -0%
Exercise·M
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$37.2K

800 sh · $46.54

Own +1%
Sell·S
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$150.7K

1.9K sh · $79.31

Own -2%
Sell·S
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$65.7K

840 sh · $78.23

Own -1%
Exercise·M
May 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$127.5K

2.7K sh · $46.54

Own +3%
Sell·S
Apr 21, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$202.1K

2.9K sh · $70.91

Own -1%
Exercise·M
Apr 6, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.3K sh

Own +50%
Sell·S
Apr 6, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$100.6K

1.4K sh · $69.75

Own -1%
Sell·S
Apr 6, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$56.6K

822 sh · $68.91

Own -1%
Exercise·M
Apr 6, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$89.3K

2.3K sh · $39.42

Own +2%
Sell·S
Apr 2, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$56.4K

829 sh · $67.99

Own -1%
Sell·S
Apr 1, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$5.6K

80 sh · $70.30

Own -0%
Sell·S
Apr 1, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$870.8K

12.5K sh · $69.50

Own -17%
Sell·S
Apr 1, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$2.7M

39.4K sh · $68.89

Own -35%
Sell·S
Mar 12, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$170.6K

2.7K sh · $64.08

Own -1%
Grant·A
Mar 11, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$0

12.5K sh

Own +3%
Exercise·M
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$0

14.0K sh

Own New
Exercise·M
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$0

1.2K sh

Own New
Sell·S
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$980.0K

14.0K sh · $70.00

Own -64%
Exercise·M
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$470.8K

14.0K sh · $33.63

Own +175%
Sell·S
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$81.7K

1.2K sh · $70.00

Own -13%
Exercise·M
Mar 10, 26

Stephanie Okey

Director · 10b5-1

$39.2K

1.2K sh · $33.63

Own +15%
Sell·S
Mar 5, 26

Stephanie Okey

Director · 10b5-1

$401.4K

6.3K sh · $63.38

Own -44%
Sell·S
Mar 5, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$633.8K

10.0K sh · $63.38

Own -11%
Sell·S
Mar 5, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$252.8K

4.0K sh · $63.38

Own -59%
Sell·S
Feb 19, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$41.2K

590 sh · $69.82

Own -1%
Sell·S
Feb 19, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$14.5K

212 sh · $68.54

Own -0%
Sell·S
Feb 19, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$113.7K

1.6K sh · $69.82

Own -2%
Sell·S
Feb 19, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$40.3K

588 sh · $68.54

Own -1%
Sell·S
Feb 18, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$213.7K

3.1K sh · $69.36

Own -3%
Sell·S
Feb 18, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER · 10b5-1

$173.0K

2.5K sh · $69.36

Own -3%
Sell·S
Feb 18, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$209.4K

3.0K sh · $69.36

Own -4%
Sell·S
Feb 18, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$511.3K

7.4K sh · $69.36

Own -2%
Sell·S
Feb 18, 26

Pierre Gravier KEY

CHIEF FINANCIAL OFFICER · 10b5-1

$207.5K

3.0K sh · $69.36

Own -3%
Sell·S
Feb 18, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$172.3K

2.5K sh · $69.36

Own -3%
Sell·S
Feb 18, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$4.5K

65 sh · $69.36

Own -1%
Sell·S
Feb 18, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$212.0K

3.1K sh · $69.36

Own -3%
Exercise·M
Feb 17, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.8K sh

Own +14%
Sell·S
Feb 17, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$140

2 sh · $70.13

Own -0%
Sell·S
Feb 17, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$194.8K

2.8K sh · $69.29

Own -2%
Exercise·M
Feb 17, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$72.3K

2.8K sh · $25.69

Own +3%
Sell·S
Jan 12, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$80.6K

1.0K sh · $78.70

Own -1%
Sell·S
Jan 9, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$133.3K

1.7K sh · $77.41

Own -2%
Sell·S
Jan 9, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$8.5K

107 sh · $79.52

Own -0%
Sell·S
Jan 9, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$54.0K

686 sh · $78.71

Own -1%
Sell·S
Jan 9, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$117.8K

1.5K sh · $77.46

Own -1%
Sell·S
Jan 8, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER · 10b5-1

$79.0K

1.0K sh · $76.45

Own -1%
Sell·S
Jan 8, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$111.2K

1.5K sh · $76.45

Own -2%
Sell·S
Jan 8, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$45.2K

587 sh · $76.98

Own -1%
Sell·S
Jan 8, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$195.7K

2.6K sh · $76.42

Own -3%
Sell·S
Jan 8, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$192.2K

2.5K sh · $76.45

Own -1%
Sell·S
Jan 8, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$66.2K

866 sh · $76.45

Own -1%
Sell·S
Jan 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$98.3K

1.3K sh · $76.45

Own -1%
Sell·S
Jan 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$20.4K

265 sh · $77.07

Own -0%
Sell·S
Jan 8, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$190.0K

2.5K sh · $76.56

Own -2%
Sell·S
Jan 8, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$4.5K

59 sh · $76.45

Own -1%
Sell·S
Jan 8, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$67.4K

881 sh · $76.45

Own -1%
Sell·S
Jan 7, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER · 10b5-1

$95.7K

1.2K sh · $77.45

Own -2%
Sell·S
Jan 7, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$104.8K

1.4K sh · $77.48

Own -2%
Sell·S
Jan 7, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$233.7K

3.0K sh · $77.48

Own -1%
Sell·S
Jan 7, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$49.7K

642 sh · $77.48

Own -1%
Exercise·M
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

751 sh

Own New
Exercise·M
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.6K sh

Own New
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$869

11 sh · $78.98

Own -0%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$21.0K

269 sh · $77.92

Own -0%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$36.3K

471 sh · $77.10

Own -0%
Exercise·M
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$28.6K

751 sh · $38.10

Own +1%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$3.0K

38 sh · $78.60

Own -0%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$73.9K

949 sh · $77.91

Own -1%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$126.3K

1.6K sh · $77.11

Own -1%
Exercise·M
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$100.0K

2.6K sh · $38.10

Own +2%
Sell·S
Jan 7, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$116.5K

1.5K sh · $77.48

Own -1%
Sell·S
Jan 7, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$4.0K

52 sh · $77.48

Own -1%
Sell·S
Jan 7, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$79.5K

1.0K sh · $77.48

Own -1%
Sell·S
Jan 6, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER · 10b5-1

$106.3K

1.4K sh · $76.95

Own -2%
Sell·S
Jan 6, 26

Eric Pauwels

CHIEF BUSINESS OFFICER · 10b5-1

$137.7K

1.8K sh · $76.95

Own -2%
Sell·S
Jan 6, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$396.2K

5.1K sh · $76.95

Own -1%
Sell·S
Jan 6, 26

Pierre Gravier KEY

CHIEF FINANCIAL OFFICER · 10b5-1

$164.6K

2.1K sh · $76.95

Own -2%
Sell·S
Jan 6, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER · 10b5-1

$103.1K

1.3K sh · $76.95

Own -1%
Sell·S
Jan 6, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$133.8K

1.7K sh · $76.95

Own -1%
Sell·S
Jan 6, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$4.2K

54 sh · $76.95

Own -1%
Sell·S
Jan 6, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER · 10b5-1

$98.4K

1.3K sh · $76.95

Own -1%
Exercise·M
Jan 5, 26

Emma Reeve

Director · 10b5-1

$0

734 sh

Own New
Sell·S
Jan 5, 26

Emma Reeve

Director · 10b5-1

$55.8K

734 sh · $76.00

Own -6%
Exercise·M
Jan 5, 26

Emma Reeve

Director · 10b5-1

$34.2K

734 sh · $46.54

Own +7%
Exercise·M
Jan 5, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

2.3K sh

Own +33%
Sell·S
Jan 5, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$8.3K

108 sh · $76.79

Own -0%
Sell·S
Jan 5, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$78.8K

1.0K sh · $76.10

Own -1%
Sell·S
Jan 5, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$84.1K

1.1K sh · $74.92

Own -1%
Exercise·M
Jan 5, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$89.3K

2.3K sh · $39.42

Own +2%
Grant·A
Jan 2, 26

Alethia Young

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Alethia Young

Director

$0

4.0K sh

Own +23%
Grant·A
Jan 2, 26

Mary L. Smith

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Mary L. Smith

Director

$0

4.0K sh

Own +22%
Grant·A
Jan 2, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER

$0

33.1K sh

Own New
Grant·A
Jan 2, 26

Christine Marie Utter

SVP, CHIEF ACCOUNTING OFFICER

$0

13.2K sh

Own +21%
Grant·A
Jan 2, 26

Emma Reeve

Director · 10b5-1

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Emma Reeve

Director · 10b5-1

$0

4.0K sh

Own +60%
Grant·A
Jan 2, 26

Jerome B Zeldis

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Jerome B Zeldis

Director

$0

4.0K sh

Own +22%
Grant·A
Jan 2, 26

Eric Pauwels

CHIEF BUSINESS OFFICER

$0

50.0K sh

Own New
Grant·A
Jan 2, 26

Eric Pauwels

CHIEF BUSINESS OFFICER

$0

20.0K sh

Own +28%
Grant·A
Jan 2, 26

Michael Schmertzler

Director

$0

7.0K sh

Own New
Grant·A
Jan 2, 26

Michael Schmertzler

Director

$0

8.0K sh

Own +5%
Grant·A
Jan 2, 26

Glenn Steele JR MD PHD

Director · 10b5-1

$0

3.5K sh

Own New
Exercise·M
Jan 2, 26

Glenn Steele JR MD PHD

Director · 10b5-1

$0

12.0K sh

Own New
Grant·A
Jan 2, 26

Glenn Steele JR MD PHD

Director · 10b5-1

$0

4.0K sh

Own +22%
Sell·S
Jan 2, 26

Glenn Steele JR MD PHD

Director · 10b5-1

$916.2K

12.0K sh · $76.35

Own -39%
Exercise·M
Jan 2, 26

Glenn Steele JR MD PHD

Director · 10b5-1

$370.3K

12.0K sh · $30.86

Own +65%
Grant·A
Jan 2, 26

David P Southwell

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

David P Southwell

Director

$0

4.0K sh

Own +24%
Grant·A
Jan 2, 26

Stephanie Okey

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Stephanie Okey

Director

$0

4.0K sh

Own +50%
Grant·A
Jan 2, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER

$0

157.5K sh

Own New
Grant·A
Jan 2, 26

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER

$0

63.0K sh

Own +18%
Grant·A
Jan 2, 26

Allan Steven Jacobson

Director

$0

3.5K sh

Own New
Grant·A
Jan 2, 26

Allan Steven Jacobson

Director

$0

4.0K sh

Own +23%
Grant·A
Jan 2, 26

Pierre Gravier KEY

CHIEF FINANCIAL OFFICER

$0

50.0K sh

Own New
Grant·A
Jan 2, 26

Pierre Gravier KEY

CHIEF FINANCIAL OFFICER

$0

20.0K sh

Own +28%
Grant·A
Jan 2, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER

$0

46.9K sh

Own New
Grant·A
Jan 2, 26

Lee Scott Golden

EVP & CHIEF MEDICAL OFFICER

$0

18.8K sh

Own +25%
Grant·A
Jan 2, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

42.5K sh

Own New
Grant·A
Jan 2, 26

Mark Elliott Boulding

EXEC. VP AND CLO · 10b5-1

$0

17.0K sh

Own +16%
Grant·A
Jan 2, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER

$0

43.8K sh

Own New
Grant·A
Jan 2, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER

$0

520 sh

Own +8%
Grant·A
Jan 2, 26

Neil Gregory Almstead

CHIEF TECHNICAL OPS OFFICER

$0

17.5K sh

Own +17%
Sell·S
Dec 30, 25

Matthew B. Klein KEY

CHIEF EXECUTIVE OFFICER · 10b5-1

$619.9K

8.1K sh · $76.64

Own -2%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 10, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	17.6K	-100%	—	$0
Jun 10, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	17.6K	-19%	$75.00	$1.3M
Jun 10, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Exercise M	17.6K	+24%	$18.01	$316.4K
Jun 10, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	3.7K	-5%	$75.00	$278.3K
May 15, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.8K	+17%	—	$0
May 15, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	456	-0%	$72.67	$33.1K
May 15, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	2.4K	-2%	$72.08	$169.8K
May 15, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.8K	+3%	$25.69	$72.2K
May 14, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	2.6K	-1%	$72.46	$186.4K
May 14, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	2.1K	-1%	$73.08	$153.5K
May 14, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	7.2K	-2%	$73.08	$527.7K
May 14, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	679	-0%	$73.06	$49.6K
May 13, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Grant A	12.5K	+3%	—	$0
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	800	+2%	—	$0
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.7K	+7%	—	$0
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	600	-1%	$79.28	$47.6K
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	200	-0%	$78.00	$15.6K
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	800	+1%	$46.54	$37.2K
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.9K	-2%	$79.31	$150.7K
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	840	-1%	$78.23	$65.7K
May 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.7K	+3%	$46.54	$127.5K
Apr 21, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	2.9K	-1%	$70.91	$202.1K
Apr 6, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.3K	+50%	—	$0
Apr 6, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.4K	-1%	$69.75	$100.6K
Apr 6, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	822	-1%	$68.91	$56.6K
Apr 6, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.3K	+2%	$39.42	$89.3K
Apr 2, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	829	-1%	$67.99	$56.4K
Apr 1, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	80	-0%	$70.30	$5.6K
Apr 1, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	12.5K	-17%	$69.50	$870.8K
Apr 1, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	39.4K	-35%	$68.89	$2.7M
Mar 12, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	2.7K	-1%	$64.08	$170.6K
Mar 11, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Grant A	12.5K	+3%	—	$0
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Exercise M	14.0K	New	—	$0
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Exercise M	1.2K	New	—	$0
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Sell S	14.0K	-64%	$70.00	$980.0K
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Exercise M	14.0K	+175%	$33.63	$470.8K
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Sell S	1.2K	-13%	$70.00	$81.7K
Mar 10, 2026	Stephanie Okey 10b5-1	Director	Exercise M	1.2K	+15%	$33.63	$39.2K
Mar 5, 2026	Stephanie Okey 10b5-1	Director	Sell S	6.3K	-44%	$63.38	$401.4K
Mar 5, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	10.0K	-11%	$63.38	$633.8K
Mar 5, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	4.0K	-59%	$63.38	$252.8K
Feb 19, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	590	-1%	$69.82	$41.2K
Feb 19, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	212	-0%	$68.54	$14.5K
Feb 19, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.6K	-2%	$69.82	$113.7K
Feb 19, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	588	-1%	$68.54	$40.3K
Feb 18, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	3.1K	-3%	$69.36	$213.7K
Feb 18, 2026	Christine Marie Utter 10b5-1	SVP, CHIEF ACCOUNTING OFFICER	Sell S	2.5K	-3%	$69.36	$173.0K
Feb 18, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	3.0K	-4%	$69.36	$209.4K
Feb 18, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	7.4K	-2%	$69.36	$511.3K
Feb 18, 2026	Pierre Gravier KEY 10b5-1	CHIEF FINANCIAL OFFICER	Sell S	3.0K	-3%	$69.36	$207.5K
Feb 18, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	2.5K	-3%	$69.36	$172.3K
Feb 18, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	65	-1%	$69.36	$4.5K
Feb 18, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	3.1K	-3%	$69.36	$212.0K
Feb 17, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.8K	+14%	—	$0
Feb 17, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	2	-0%	$70.13	$140
Feb 17, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	2.8K	-2%	$69.29	$194.8K
Feb 17, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.8K	+3%	$25.69	$72.3K
Jan 12, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	1.0K	-1%	$78.70	$80.6K
Jan 9, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	1.7K	-2%	$77.41	$133.3K
Jan 9, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	107	-0%	$79.52	$8.5K
Jan 9, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	686	-1%	$78.71	$54.0K
Jan 9, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.5K	-1%	$77.46	$117.8K
Jan 8, 2026	Christine Marie Utter 10b5-1	SVP, CHIEF ACCOUNTING OFFICER	Sell S	1.0K	-1%	$76.45	$79.0K
Jan 8, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	1.5K	-2%	$76.45	$111.2K
Jan 8, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	587	-1%	$76.98	$45.2K
Jan 8, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	2.6K	-3%	$76.42	$195.7K
Jan 8, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	2.5K	-1%	$76.45	$192.2K
Jan 8, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	866	-1%	$76.45	$66.2K
Jan 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.3K	-1%	$76.45	$98.3K
Jan 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	265	-0%	$77.07	$20.4K
Jan 8, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	2.5K	-2%	$76.56	$190.0K
Jan 8, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	59	-1%	$76.45	$4.5K
Jan 8, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	881	-1%	$76.45	$67.4K
Jan 7, 2026	Christine Marie Utter 10b5-1	SVP, CHIEF ACCOUNTING OFFICER	Sell S	1.2K	-2%	$77.45	$95.7K
Jan 7, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	1.4K	-2%	$77.48	$104.8K
Jan 7, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	3.0K	-1%	$77.48	$233.7K
Jan 7, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	642	-1%	$77.48	$49.7K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	751	New	—	$0
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.6K	New	—	$0
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	11	-0%	$78.98	$869
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	269	-0%	$77.92	$21.0K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	471	-0%	$77.10	$36.3K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	751	+1%	$38.10	$28.6K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	38	-0%	$78.60	$3.0K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	949	-1%	$77.91	$73.9K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.6K	-1%	$77.11	$126.3K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.6K	+2%	$38.10	$100.0K
Jan 7, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.5K	-1%	$77.48	$116.5K
Jan 7, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	52	-1%	$77.48	$4.0K
Jan 7, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	1.0K	-1%	$77.48	$79.5K
Jan 6, 2026	Christine Marie Utter 10b5-1	SVP, CHIEF ACCOUNTING OFFICER	Sell S	1.4K	-2%	$76.95	$106.3K
Jan 6, 2026	Eric Pauwels 10b5-1	CHIEF BUSINESS OFFICER	Sell S	1.8K	-2%	$76.95	$137.7K
Jan 6, 2026	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	5.1K	-1%	$76.95	$396.2K
Jan 6, 2026	Pierre Gravier KEY 10b5-1	CHIEF FINANCIAL OFFICER	Sell S	2.1K	-2%	$76.95	$164.6K
Jan 6, 2026	Lee Scott Golden 10b5-1	EVP & CHIEF MEDICAL OFFICER	Sell S	1.3K	-1%	$76.95	$103.1K
Jan 6, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.7K	-1%	$76.95	$133.8K
Jan 6, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	54	-1%	$76.95	$4.2K
Jan 6, 2026	Neil Gregory Almstead 10b5-1	CHIEF TECHNICAL OPS OFFICER	Sell S	1.3K	-1%	$76.95	$98.4K
Jan 5, 2026	Emma Reeve 10b5-1	Director	Exercise M	734	New	—	$0
Jan 5, 2026	Emma Reeve 10b5-1	Director	Sell S	734	-6%	$76.00	$55.8K
Jan 5, 2026	Emma Reeve 10b5-1	Director	Exercise M	734	+7%	$46.54	$34.2K
Jan 5, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.3K	+33%	—	$0
Jan 5, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	108	-0%	$76.79	$8.3K
Jan 5, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.0K	-1%	$76.10	$78.8K
Jan 5, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Sell S	1.1K	-1%	$74.92	$84.1K
Jan 5, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Exercise M	2.3K	+2%	$39.42	$89.3K
Jan 2, 2026	Alethia Young	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Alethia Young	Director	Grant A	4.0K	+23%	—	$0
Jan 2, 2026	Mary L. Smith	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Mary L. Smith	Director	Grant A	4.0K	+22%	—	$0
Jan 2, 2026	Christine Marie Utter	SVP, CHIEF ACCOUNTING OFFICER	Grant A	33.1K	New	—	$0
Jan 2, 2026	Christine Marie Utter	SVP, CHIEF ACCOUNTING OFFICER	Grant A	13.2K	+21%	—	$0
Jan 2, 2026	Emma Reeve 10b5-1	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Emma Reeve 10b5-1	Director	Grant A	4.0K	+60%	—	$0
Jan 2, 2026	Jerome B Zeldis	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Jerome B Zeldis	Director	Grant A	4.0K	+22%	—	$0
Jan 2, 2026	Eric Pauwels	CHIEF BUSINESS OFFICER	Grant A	50.0K	New	—	$0
Jan 2, 2026	Eric Pauwels	CHIEF BUSINESS OFFICER	Grant A	20.0K	+28%	—	$0
Jan 2, 2026	Michael Schmertzler	Director	Grant A	7.0K	New	—	$0
Jan 2, 2026	Michael Schmertzler	Director	Grant A	8.0K	+5%	—	$0
Jan 2, 2026	Glenn Steele JR MD PHD 10b5-1	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Glenn Steele JR MD PHD 10b5-1	Director	Exercise M	12.0K	New	—	$0
Jan 2, 2026	Glenn Steele JR MD PHD 10b5-1	Director	Grant A	4.0K	+22%	—	$0
Jan 2, 2026	Glenn Steele JR MD PHD 10b5-1	Director	Sell S	12.0K	-39%	$76.35	$916.2K
Jan 2, 2026	Glenn Steele JR MD PHD 10b5-1	Director	Exercise M	12.0K	+65%	$30.86	$370.3K
Jan 2, 2026	David P Southwell	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	David P Southwell	Director	Grant A	4.0K	+24%	—	$0
Jan 2, 2026	Stephanie Okey	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Stephanie Okey	Director	Grant A	4.0K	+50%	—	$0
Jan 2, 2026	Matthew B. Klein KEY	CHIEF EXECUTIVE OFFICER	Grant A	157.5K	New	—	$0
Jan 2, 2026	Matthew B. Klein KEY	CHIEF EXECUTIVE OFFICER	Grant A	63.0K	+18%	—	$0
Jan 2, 2026	Allan Steven Jacobson	Director	Grant A	3.5K	New	—	$0
Jan 2, 2026	Allan Steven Jacobson	Director	Grant A	4.0K	+23%	—	$0
Jan 2, 2026	Pierre Gravier KEY	CHIEF FINANCIAL OFFICER	Grant A	50.0K	New	—	$0
Jan 2, 2026	Pierre Gravier KEY	CHIEF FINANCIAL OFFICER	Grant A	20.0K	+28%	—	$0
Jan 2, 2026	Lee Scott Golden	EVP & CHIEF MEDICAL OFFICER	Grant A	46.9K	New	—	$0
Jan 2, 2026	Lee Scott Golden	EVP & CHIEF MEDICAL OFFICER	Grant A	18.8K	+25%	—	$0
Jan 2, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Grant A	42.5K	New	—	$0
Jan 2, 2026	Mark Elliott Boulding 10b5-1	EXEC. VP AND CLO	Grant A	17.0K	+16%	—	$0
Jan 2, 2026	Neil Gregory Almstead	CHIEF TECHNICAL OPS OFFICER	Grant A	43.8K	New	—	$0
Jan 2, 2026	Neil Gregory Almstead	CHIEF TECHNICAL OPS OFFICER	Grant A	520	+8%	—	$0
Jan 2, 2026	Neil Gregory Almstead	CHIEF TECHNICAL OPS OFFICER	Grant A	17.5K	+17%	—	$0
Dec 30, 2025	Matthew B. Klein KEY 10b5-1	CHIEF EXECUTIVE OFFICER	Sell S	8.1K	-2%	$76.64	$619.9K

About PTCT insider trading

This page tracks insider transactions for PTC THERAPEUTICS, INC. (PTCT) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.