PTC THERAPEUTICS INC

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PTCT·69366J200·US·Common Stock·Healthcare - Biotechnology-13D/G

PTCT (PTC THERAPEUTICS INC) is held by 176 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($1.1B), RTW INVESTMENTS, LP ($631.9M), VANGUARD PORTFOLIO MANAGEMENT LLC ($402M). Net institutional sentiment: Mixed.

176

Holders

(14 Elite)

$6.6B

Total Value

56% (179)

Consensus

100 buying - 79 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)36

Insider (Form 4)41

Activist (13D/13G)30

Congressional (STOCK Act)69

Holder Quality

20

★★★★★

Elite

74

★★★★

Strong

28

★★★

Solid

66

★★

Below

75

★

Weak

Held by 176 funds

14 elite

Who's Trading

Source dates: Price Aug 17, 2026 · Insiders Aug 6, 2026 · Activists May 15, 2026 · Congress none

InsiderKBKlein Matthew B.Sell $706KAug 4, 2026

InsiderGPGravier PierreSell $281KJul 14, 2026

InsiderAGAlmstead Neil GregorySell $222KJul 9, 2026

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Top Holders

Top Holders (176)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	14M(+7.8%)	$1.1B	0.0%	+19.66%	34
RTW INVESTMENTS, LP	Unchanged	7.7M	$631.9M	5.4%	+66.65%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	4.9M(+2.6%)	$402M	0.0%	+12.43%	32
STATE STREET CORP	Increased	4.6M(+5.8%)	$375.1M	0.0%	+55.49%	33
WELLINGTON MANAGEMENT GROUP LLP	Increased	4.1M(+4.7%)	$336.7M	0.1%	+84.26%	33
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	3.7M(+1.7%)	$305M	0.0%	+12.68%	31
GEODE CAPITAL MANAGEMENT, LLC	Decreased	2.2M(-0.1%)	$180.1M	0.0%	+65.20%	0
TORONTO DOMINION BANK	Decreased	2.2M(-28.4%)	$176.7M	0.2%	+32.02%	0
WESTFIELD CAPITAL MANAGEMENT CO LP	New	2M	$159.6M	0.5%	-10.65%	59
Hood River Capital Management LLC	Increased	1.7M(+4.5%)	$141.8M	1.0%	+22.93%	50
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	New	1.7M	$140.5M	0.4%	-10.65%	50
DED. E. Shaw & Co., Inc.	Decreased	1.5M(-5.6%)	$126.3M	0.1%	+77.51%	0
BANK OF AMERICA CORP /DE/	Decreased	1.5M(-23.0%)	$118.5M	0.0%	+34.63%	0
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	1.4M(+41.8%)	$117.5M	0.7%	+23.92%	57
FMR LLC	Decreased	1.4M(-8.5%)	$114.1M	0.0%	+40.59%	0
FULLER & THALER ASSET MANAGEMENT, INC.	New	1.2M	$94.4M	0.3%	-10.65%	49
Pictet Asset Management Holding SA	Decreased	1.1M(-3.0%)	$93.6M	0.1%	+48.96%	0
MORGAN STANLEY	Increased	1.1M(+63.7%)	$90M	0.0%	+9.80%	43
FRANKLIN RESOURCES INC	Decreased	1M(-8.4%)	$83.8M	0.0%	+47.56%	0
Invesco Ltd.	Increased	941,581(+8.8%)	$76.8M	0.0%	+16.89%	32

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer