Ptc Therapeutics, Inc. (PTCT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

87,818,107Shares Outstanding

63,952Shares held by institutions

$4,775,935Value of institutional holdings

15.30%Institutional ownership %

18.37%Shares Changed QoQ

98No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Ptc Therapeutics, Inc. (NASDAQ:PTCT) is held by 98 institutional firms.

Institutional ownership in Ptc Therapeutics edged down to 15.3% in December 2025, compared to 94.5% in September 2025.
In percentage terms, this reflects as a holdings change of 18.37% quarter on quarter, and a decrease of 59.34% year over year.
The latest 13F cycle for Ptc Therapeutics reveals that of 98 total investors, 59 funds grew their exposure, whereas 26 reduced theirs and 13 made no changes.
This class of investors increased its holdings in Ptc Therapeutics to 13.43Mn shares for the 13F-cycle ending December 2025, up by 2.09Mn shares quarter on quarter, and down 64.11Mn shares year over year.
VANGUARD GROUP INC continues to be the largest institutional holder of Ptc Therapeutics as of December 31, 2025, with a position of 8.80Mn shares, representing 10.02% of the company's outstanding stock.
Among the most significant buyers of Ptc Therapeutics during December 2025 were SG Americas Securities, LLC (764.36K), VANGUARD GROUP INC (514.20K), UBS Group AG (512.45K), PRINCIPAL FINANCIAL GROUP INC (411.22K), Abacus FCF Advisors LLC (75.76K).
Leading sellers of Ptc Therapeutics stock in December 2025 included Pictet Asset Management Holding SA (429.02K), Assenagon Asset Management S.A. (53.48K), HUSSMAN STRATEGIC ADVISORS, INC. (37.80K), State of New Jersey Common Pension Fund D (19.08K), QRG CAPITAL MANAGEMENT, INC. (12.35K).
The top 10 institutional holders of Ptc Therapeutics for the quarter ending December 2025 included VANGUARD GROUP INC (8.80Mn), Pictet Asset Management Holding SA (978.96K), UBS Group AG (964.66K), SG Americas Securities, LLC (894.46K), PRINCIPAL FINANCIAL GROUP INC (478.90K), Universal- Beteiligungs- und Servicegesellschaft mbH (151.40K), PINNACLE ASSOCIATES LTD (83.43K), Abacus FCF Advisors LLC (75.76K), THRIVENT FINANCIAL FOR LUTHERANS (55.17K), Assenagon Asset Management S.A. (54.17K).

294 Institutional Holders

63,952 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	30 Sep, 2025	8,288,999	-558,468	-6.31%	$508,695,869.00
RTW INVESTMENTS, LP	30 Sep, 2025	7,746,415	0	0.00%	$475,397,489.00
BlackRock, Inc.	30 Sep, 2025	7,130,807	-349,625	-4.67%	$437,617,626.00
WELLINGTON MANAGEMENT GROUP LLP	30 Sep, 2025	4,918,619	224,481	4.78%	$301,855,649.00
JANUS HENDERSON GROUP PLC	30 Sep, 2025	3,773,556	598,541	18.85%	$231,685,032.00
ARMISTICE CAPITAL, LLC	30 Sep, 2025	3,277,272	-1,458,192	-30.79%	$201,126,183.00
TORONTO DOMINION BANK	30 Sep, 2025	3,246,525	800,567	32.73%	$199,239,239.00
STATE STREET CORP	30 Sep, 2025	3,134,783	138,329	4.62%	$192,381,633.00
D. E. Shaw & Co., Inc.	30 Sep, 2025	2,174,608	-263,089	-10.79%	$133,455,693.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	1,950,878	16,285	0.84%	$119,742,808.00
CITADEL ADVISORS LLC	30 Sep, 2025	1,731,025	1,731,025	0.00%	$106,233,004.00
FMR LLC	30 Sep, 2025	1,611,775	-106,512	-6.20%	$98,914,644.00
Jefferies Financial Group Inc.	30 Sep, 2025	1,584,678	1,584,678	0.00%	$97,251,689.00
BANK OF AMERICA CORP /DE/	30 Sep, 2025	1,517,036	135,628	9.82%	$93,100,498.00
TANG CAPITAL MANAGEMENT LLC	30 Sep, 2025	1,500,000	400,000	36.36%	$92,055,000.00
Pictet Asset Management Holding SA	30 Sep, 2025	1,407,974	366,543	35.20%	$86,214,711.00
Point72 Asset Management, L.P.	30 Sep, 2025	1,220,642	1,220,642	0.00%	$74,910,798.00
FRANKLIN RESOURCES INC	30 Sep, 2025	1,157,034	-117,726	-9.24%	$71,007,177.00
DRIEHAUS CAPITAL MANAGEMENT LLC	30 Sep, 2025	1,131,749	72,723	6.87%	$69,455,436.00
MILLENNIUM MANAGEMENT LLC	30 Sep, 2025	1,056,481	672,079	174.84%	$64,836,239.00

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Ptc Therapeutics, Inc. (PTCT) Institutional Ownership

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Ownership Statistics

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

294 Institutional Holders

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