Ptc Therapeutics, Inc. (PTCT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

320,944Shares held by institutions

$21,053,926Value of institutional holdings

101.51%Institutional ownership %

5.39%Shares Changed QoQ

281No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Ptc Therapeutics, Inc. (NASDAQ:PTCT) has 337 institutional investors with active 13F positions as of December 2025.

Their combined ownership stood at 104.9% of outstanding shares in December 2025, up from 97.5% in September 2025.
They increased total shares held in PTCT by 11.04% quarter over quarter, and investors in Ptc Therapeutics increased 39.83% from a year ago.
During the quarter, 217 of these 337 funds increased positions in PTCT, 93 reduced exposure, and 27 held steady.
The aggregate institutional position in Ptc Therapeutics amounted to 91.4Mn shares as of December 2025, up by 9.09Mn shares quarter on quarter, and up 9.23Mn shares year over year.
BlackRock, Inc. is the top holder of Ptc Therapeutics as of December 31, 2025, with 12.78Mn shares representing 14.67% of outstanding stock.
The most significant purchases of PTCT for the quarter ending December 2025 came from BlackRock, Inc. (5.65Mn), Janus Henderson Group Plc (1.08Mn), State Street Corp (1.07Mn), Toronto Dominion Bank (891.69K), BNP PARIBAS FINANCIAL MARKETS (808.52K).
The largest sales of PTCT for the quarter ending December 2025 came from Bank Of America Corp /De/ (1.6Mn), WELLINGTON MANAGEMENT GROUP LLP (1.05Mn), MILLENNIUM MANAGEMENT LLC (1.03Mn), Jpmorgan Chase & Co (625.83K), CITADEL ADVISORS LLC (576.57K).
Per Business Quant, the top 10 investors in PTCT for the quarter ending December 2025 include BlackRock, Inc. (12.78Mn), VANGUARD GROUP INC (8.8Mn), RTW INVESTMENTS, LP (7.75Mn), Janus Henderson Group Plc (4.85Mn), State Street Corp (4.21Mn), Toronto Dominion Bank (4.14Mn), WELLINGTON MANAGEMENT GROUP LLP (3.87Mn), ARMISTICE CAPITAL, LLC (2.8Mn), GEODE CAPITAL MANAGEMENT, LLC (2.02Mn), D. E. Shaw & Co., Inc. (1.74Mn).

338 Institutional Holders

320,944 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	5,648,258	79.21%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	514,204	6.20%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	-92,091	-7.54%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	337,314	71.20%	$0.00
RTW INVESTMENTS, LP	31 Dec, 2025	0	0.00%	$0.00
Pictet Asset Management Holding SA	31 Dec, 2025	-429,017	-30.47%	$0.00
Avoro Capital Advisors LLC	31 Dec, 2025	685,000	0.00%	$0.00
Janus Henderson Group Plc	31 Dec, 2025	1,077,776	28.56%	$0.00
UBS Group AG	31 Dec, 2025	512,449	113.32%	$0.00
Barclays Plc	31 Dec, 2025	-186,465	-45.85%	$0.00
State Street Corp	31 Dec, 2025	1,071,343	34.18%	$0.00
Nuveen, LLC	31 Dec, 2025	-22,012	-3.05%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	-154,243	-86.41%	$0.00
Toronto Dominion Bank	31 Dec, 2025	891,690	27.47%	$0.00
Woodline Partners LP	31 Dec, 2025	465,948	441.22%	$0.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	-1,051,239	-21.37%	$0.00
MPM BioImpact LLC	31 Dec, 2025	-8,464	-1.93%	$0.00
ARMISTICE CAPITAL, LLC	31 Dec, 2025	-475,403	-14.51%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	65,184	3.34%	$0.00
Russell Investments Group, Ltd.	31 Dec, 2025	23,255	9.40%	$0.00

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