PTC THERAPEUTICS, INC. - Common Stock (PTCT) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
PTCT on Nasdaq
Shares outstanding
80,437,135
Price per share
$75.96
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
82,687,531
Total reported value
$5,074,314,575
% of total 13F portfolios
0.01%
Share change
+2,730,917
Value change
+$181,658,942
Number of holders
290
Price from insider filings
$75.96
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of PTC THERAPEUTICS, INC. - Common Stock (PTCT) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 15% +85% $892,256,965 +$421,991,884 11,904,696 +90% BlackRock, Inc. 30 Nov 2025
VANGUARD GROUP INC 10% $508,695,869 8,288,999 The Vanguard Group 30 Sep 2025
ARMISTICE CAPITAL, LLC 6.9% -18% $269,133,425 -$46,705,135 5,434,843 -15% Armistice Capital, LLC 31 Mar 2025
WELLINGTON MANAGEMENT GROUP LLP 6.2% $237,058,331 4,787,123 Wellington Management Group LLP 31 Dec 2024
Camber Capital Management LP 4.2% $158,464,000 3,200,000 Camber Capital Management LP 31 Dec 2024

As of 30 Sep 2025, 290 institutional investors reported holding 82,687,531 shares of PTC THERAPEUTICS, INC. - Common Stock (PTCT). This represents 103% of the company’s total 80,437,135 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of PTC THERAPEUTICS, INC. - Common Stock (PTCT) together control 80% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 10% 8,288,999 -6.3% 0.01% $508,695,869
RTW INVESTMENTS, LP 9.6% 7,746,415 0% 5.9% $475,397,489
BlackRock, Inc. 8.9% 7,130,807 -4.7% 0.01% $437,617,626
WELLINGTON MANAGEMENT GROUP LLP 6.1% 4,918,619 +4.8% 0.05% $301,855,649
JANUS HENDERSON GROUP PLC 4.7% 3,773,556 +19% 0.11% $231,685,032
ARMISTICE CAPITAL, LLC 4.1% 3,277,272 -31% 6.3% $201,126,183
TORONTO DOMINION BANK 4% 3,246,525 +33% 0.39% $199,239,239
STATE STREET CORP 3.9% 3,134,783 +4.6% 0.01% $192,381,633
D. E. Shaw & Co., Inc. 2.7% 2,174,608 -11% 0.11% $133,455,693
GEODE CAPITAL MANAGEMENT, LLC 2.4% 1,950,878 +0.84% 0.01% $119,742,808
CITADEL ADVISORS LLC 2.2% 1,731,025 +88% 0.09% $106,233,004
FMR LLC 2% 1,611,775 -6.2% 0.01% $98,914,644
Jefferies Financial Group Inc. 2% 1,584,678 0.89% $97,251,689
BANK OF AMERICA CORP /DE/ 1.9% 1,517,036 +9.8% 0.01% $93,100,498
TANG CAPITAL MANAGEMENT LLC 1.9% 1,500,000 +36% 3.5% $92,055,000
Pictet Asset Management Holding SA 1.8% 1,407,974 +35% 0.08% $86,214,711
Point72 Asset Management, L.P. 1.5% 1,220,642 0.16% $74,910,798
FRANKLIN RESOURCES INC 1.4% 1,157,034 -9.2% 0.02% $71,007,177
Driehaus Capital Management LLC 1.4% 1,131,749 +6.9% 0.5% $69,455,436
MILLENNIUM MANAGEMENT LLC 1.3% 1,056,481 +175% 0.05% $64,836,239
Hood River Capital Management LLC 1.2% 995,782 +56% 0.72% $61,111,141
RENAISSANCE TECHNOLOGIES LLC 1.2% 927,300 -3.7% 0.08% $56,908,401
GOLDMAN SACHS GROUP INC 1.1% 876,409 +13% 0.01% $53,785,221
Palo Alto Investors LP 1.1% 862,613 +112% 9.8% $52,938,560
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 1% 800,878 +1.4% 0.13% $49,150,000

Institutional Holders of PTC THERAPEUTICS, INC. - Common Stock (PTCT) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,221,669 $92,749,933 +$55,775,374 $75.96 35
2025 Q3 82,687,531 $5,074,314,575 +$181,658,942 $61.37 290
2025 Q2 79,911,059 $3,903,121,530 +$46,553,598 $48.84 281
2025 Q1 78,779,105 $4,025,030,193 +$67,568,904 $50.96 260
2024 Q4 77,719,633 $3,508,291,455 -$16,690,343 $45.14 237
2024 Q3 78,808,939 $2,925,502,301 -$38,880,960 $37.10 199
2024 Q2 79,829,985 $2,441,610,603 -$156,636,791 $30.58 196
2024 Q1 85,061,593 $2,474,579,740 +$22,339,643 $29.09 179
2023 Q4 84,601,340 $2,331,624,240 +$83,990,908 $27.56 169
2023 Q3 81,614,706 $1,828,981,040 -$51,055,249 $22.41 175
2023 Q2 81,025,132 $3,295,908,701 +$98,098,293 $40.67 201
2023 Q1 78,433,463 $3,798,260,033 +$90,684,481 $48.44 198
2022 Q4 76,981,862 $2,938,237,687 +$13,606,355 $38.17 196
2022 Q3 76,313,271 $3,830,944,634 +$86,495,993 $50.20 199
2022 Q2 74,083,474 $2,967,960,851 +$15,896,836 $40.06 171
2022 Q1 73,730,204 $2,750,879,876 -$34,162,193 $37.31 170
2021 Q4 75,095,879 $2,991,389,896 +$33,191,074 $39.83 166
2021 Q3 74,270,018 $2,763,598,375 +$31,311,987 $37.21 174
2021 Q2 73,830,496 $3,120,577,918 +$3,824,478 $42.27 174
2021 Q1 73,197,638 $3,466,689,095 +$45,849,603 $47.35 196
2020 Q4 72,827,805 $4,447,644,286 +$100,239,157 $61.03 205
2020 Q3 71,012,920 $3,320,619,406 +$114,326,210 $46.75 189
2020 Q2 68,359,820 $3,451,278,985 +$259,126,213 $50.74 198
2020 Q1 64,213,019 $2,865,901,646 +$125,294,621 $44.61 197
2019 Q4 61,124,372 $2,935,863,409 +$23,562,040 $48.03 203
2019 Q3 61,919,993 $2,094,320,996 +$114,605,453 $33.82 181
2019 Q2 58,378,537 $2,626,676,199 +$33,782,408 $45.00 173
2019 Q1 58,617,454 $2,206,343,369 +$373,569,818 $37.64 169
2018 Q4 48,764,141 $1,672,916,979 +$32,659,099 $34.32 160
2018 Q3 46,800,681 $2,199,661,172 +$196,122,715 $47.00 176
2018 Q2 42,887,283 $1,446,483,123 +$13,935,444 $33.73 164
2018 Q1 42,685,949 $1,154,889,575 +$143,231,958 $27.06 146
2017 Q4 38,109,969 $635,678,067 +$18,883,443 $16.68 119
2017 Q3 35,744,834 $715,228,449 +$44,754,005 $20.01 126
2017 Q2 33,526,261 $614,523,105 +$64,351,306 $18.33 111
2017 Q1 31,527,213 $310,226,812 +$57,103,339 $9.84 111
2016 Q4 28,676,672 $312,896,583 -$24,470,762 $10.91 117
2016 Q3 29,224,066 $409,245,732 +$31,590,430 $14.01 110
2016 Q2 28,567,042 $202,093,852 -$12,310,362 $7.02 113
2016 Q1 29,052,236 $187,275,624 -$209,529,061 $6.44 112
2015 Q4 36,309,263 $1,175,380,829 +$117,821,671 $32.40 141
2015 Q3 33,048,603 $881,940,071 -$17,562,428 $26.70 154
2015 Q2 32,610,815 $1,570,066,541 +$38,237,714 $48.13 152
2015 Q1 31,473,162 $1,915,082,191 +$210,644,324 $60.85 157
2014 Q4 28,362,106 $1,468,602,926 +$198,969,370 $51.77 131
2014 Q3 24,376,802 $1,072,967,175 +$75,631,280 $44.01 99
2014 Q2 22,967,349 $600,370,273 +$12,312 $26.14 83
2014 Q1 22,954,586 $600,024,825 +$219,416,366 $26.14 63