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
82,685,184
Total reported value
$5,074,170,575
% of total 13F portfolios
0.01%
Share change
+2,730,917
Value change
+$181,658,989
Number of holders
289
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% $232,339,538 -$40,319,962 5,434,843 -15% Armistice Capital, LLC 31 Mar 2025
WELLINGTON MANAGEMENT GROUP LLP 6.2% $204,649,508 4,787,123 Wellington Management Group LLP 31 Dec 2024
Camber Capital Management LP 4.2% $136,800,000 3,200,000 Camber Capital Management LP 31 Dec 2024

As of 30 Sep 2025, 289 institutional investors reported holding 82,685,184 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 976,890 $74,211,074 +$54,190,686 $75.96 10
2025 Q3 82,685,184 $5,074,170,575 +$181,658,989 $61.37 289
2025 Q2 79,911,059 $3,903,121,530 +$46,553,632 $48.84 281
2025 Q1 78,779,105 $4,025,029,739 +$67,568,878 $50.96 260
2024 Q4 77,719,620 $3,508,290,130 -$16,690,800 $45.14 237
2024 Q3 78,808,939 $2,925,502,382 -$39,137,792 $37.10 200
2024 Q2 79,836,905 $2,441,822,674 -$156,113,764 $30.58 197
2024 Q1 85,050,337 $2,474,252,358 -$414,715 $29.09 179
2023 Q4 54,943 $1,514,229 -$78,215 $27.56 2
2023 Q3 81,070,986 $1,816,795,990 -$59,556,626 $22.41 173
2023 Q2 80,446,457 $3,272,347,185 +$72,106,478 $40.67 199
2023 Q1 78,374,812 $3,795,398,504 +$90,972,026 $48.44 196
2022 Q4 75,884,083 $2,896,388,789 +$9,592,882 $38.17 192
2022 Q3 74,294,707 $3,729,604,906 +$99,208,696 $50.20 193
2022 Q2 73,847,785 $2,957,264,650 +$12,575,036 $40.06 169
2022 Q1 73,481,903 $2,741,614,638 -$36,795,596 $37.31 168
2021 Q4 75,054,079 $2,989,692,398 +$33,190,185 $39.83 165
2021 Q3 74,228,309 $2,762,052,685 +$31,332,036 $37.21 175
2021 Q2 73,760,976 $3,117,650,482 +$4,069,608 $42.27 171
2021 Q1 73,755,299 $3,499,874,855 +$45,858,337 $47.35 197
2020 Q4 72,786,005 $4,444,992,076 +$101,728,976 $61.03 204
2020 Q3 70,901,227 $3,315,367,200 +$115,140,752 $46.75 185
2020 Q2 67,965,233 $3,431,265,993 +$247,142,635 $50.74 192
2020 Q1 64,167,093 $2,863,942,934 +$127,196,338 $44.61 193
2019 Q4 61,040,683 $2,931,782,762 +$23,586,766 $48.03 201
2019 Q3 61,833,443 $2,091,328,976 +$114,561,008 $33.82 177
2019 Q2 58,258,279 $2,621,410,123 +$35,412,797 $45.00 169
2019 Q1 58,616,081 $2,206,292,369 +$364,518,486 $37.64 168
2018 Q4 48,762,731 $1,672,867,979 +$32,654,277 $34.32 158
2018 Q3 46,037,437 $2,163,789,172 +$195,025,511 $47.00 174
2018 Q2 42,654,170 $1,438,622,123 +$13,160,496 $33.73 162
2018 Q1 42,644,899 $1,153,779,226 +$140,968,216 $27.06 144
2017 Q4 37,526,270 $625,941,453 +$15,871,156 $16.68 115
2017 Q3 35,726,212 $714,855,823 +$44,607,390 $20.01 125
2017 Q2 33,073,491 $606,226,862 +$68,034,493 $18.33 109
2017 Q1 31,527,213 $310,226,812 +$57,183,555 $9.84 111
2016 Q4 28,620,274 $312,279,583 -$24,438,719 $10.91 114
2016 Q3 29,224,066 $409,245,732 +$31,590,352 $14.01 110
2016 Q2 28,567,042 $202,093,852 -$3,581,464 $7.02 113
2016 Q1 28,336,176 $182,450,624 -$209,375,667 $6.44 106
2015 Q4 36,309,263 $1,175,380,829 +$118,344,229 $32.40 141
2015 Q3 32,590,375 $869,951,071 -$27,487,489 $26.70 150
2015 Q2 32,046,012 $1,542,882,541 +$90,271,265 $48.13 147
2015 Q1 30,235,812 $1,839,790,191 +$208,913,353 $60.85 157
2014 Q4 27,137,435 $1,405,201,926 +$218,083,202 $51.77 129
2014 Q3 22,813,992 $1,004,188,175 +$105,757,506 $44.01 98
2014 Q2 22,909,622 $598,862,273 +$25,091,458 $26.14 82
2014 Q1 22,954,586 $600,024,825 +$234,103,860 $26.14 63