PTC Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:PTCT Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
19 Apr 24	SellUS$83,669	Matthew Klein	Individual	3,361	US$24.89
17 Apr 24	SellUS$32,851	Matthew Klein	Individual	1,307	US$25.14
17 Apr 24	SellUS$19,781	Eric Pauwels	Individual	787	US$25.14
02 Apr 24	SellUS$14,923	Lee Golden	Individual	526	US$28.37
30 Jan 24	SellUS$8,666	Christine Utter	Individual	318	US$27.25
30 Jan 24	SellUS$9,974	Eric Pauwels	Individual	366	US$27.25
30 Jan 24	SellUS$17,604	Neil Almstead	Individual	646	US$27.25
30 Jan 24	SellUS$21,637	Mark Boulding	Individual	794	US$27.25
09 Jan 24	SellUS$83,950	Neil Almstead	Individual	2,910	US$29.01
09 Jan 24	SellUS$81,986	Christine Utter	Individual	2,841	US$29.01
09 Jan 24	SellUS$57,739	Lee Golden	Individual	2,000	US$29.01
09 Jan 24	SellUS$221,996	Matthew Klein	Individual	7,680	US$29.01
09 Jan 24	SellUS$97,960	Mark Boulding	Individual	3,395	US$29.01
09 Jan 24	SellUS$104,852	Eric Pauwels	Individual	3,634	US$29.01
05 Jan 24	SellUS$274,393	Matthew Klein	Individual	10,107	US$27.15
12 Dec 23	BuyUS$198,736	Pierre Gravier	Individual	7,700	US$25.81

Insider Trading Volume

Insider Buying: PTCT insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of PTCT?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	6,648	0.00759%
Individual Insiders	1,835,803	2.1%
Hedge Funds	18,287,970	20.9%
Institutions	67,439,411	77%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 3.8%.

Top Shareholders

Top 25 shareholders own 95.26% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
12.8%	Wellington Management Group LLP	9,816,603	US$250.2m	4.03%	0.04%
11.5%	The Vanguard Group, Inc.	8,800,843	US$224.3m	10.8%	no data
9.97%	BlackRock, Inc.	7,634,122	US$194.6m	10.1%	no data
9.69%	RTW Investments, LP	7,423,970	US$189.2m	2.61%	3.29%
8.96%	Armistice Capital LLC	6,864,000	US$175.0m	11.6%	4.6%
6.05%	State Street Global Advisors, Inc.	4,633,955	US$118.1m	46.2%	no data
5.22%	Camber Capital Management LP	4,000,000	US$102.0m	17.7%	3.49%
4.86%	Cowen Inc,Private Banking and Investment Banking Investments	3,725,626	US$95.0m	366%	4.42%
3.41%	Janus Henderson Group plc	2,612,593	US$66.6m	-15%	0.03%
2.37%	FMR LLC	1,814,409	US$46.2m	-78.6%	no data
2.1%	Geode Capital Management, LLC	1,611,225	US$41.1m	5.87%	no data
1.96%	Michael Schmertzler	1,501,860	US$38.3m	0.43%	no data
1.86%	Franklin Resources, Inc.	1,424,098	US$36.3m	-30.4%	0.01%
1.76%	D. E. Shaw & Co., L.P.	1,346,967	US$34.3m	60.2%	0.05%
1.73%	Jacobs Levy Equity Management Inc	1,323,419	US$33.7m	17.9%	0.16%
1.58%	Morgan Stanley, Investment Banking and Brokerage Investments	1,208,664	US$30.8m	212%	no data
1.3%	T. Rowe Price Group, Inc.	998,303	US$25.4m	-9.45%	no data
1.17%	Tang Capital Management, LLC	900,000	US$22.9m	0%	2.58%
1.16%	Adage Capital Management, L.P.	892,238	US$22.7m	495%	0.04%
1.13%	Pictet Asset Management Limited	866,560	US$22.1m	7.73%	0.02%
1.07%	Voloridge Investment Management, LLC	819,746	US$20.9m	373%	0.08%
1.07%	Jane Street Group, LLC, Asset Management Arm	817,858	US$20.8m	355%	0.02%
0.9%	Northern Trust Global Investments	688,847	US$17.6m	-0.34%	no data
0.82%	JP Morgan Asset Management	627,920	US$16.0m	-7.84%	no data
0.81%	Renaissance Technologies LLC	622,900	US$15.9m	166%	0.02%