WARREN, NJ
PTC THERAPEUTICS, INC.PTCT— Latest position per institution from SEC 13F filings
15
Institutional holders
94.94M
Total shares held
6.45B
Estimated value
4.75M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
13.96M
Value
1.14B
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
8.80M
Value
668.69M
Filed
Dec 31, 2025
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
7.77M
Value
237.67M
Filed
Jun 30, 2024
RTW INVESTMENTS, LP
CIK 1493215
Shares
7.75M
Value
631.88M
Filed
Jun 30, 2026
JUPITER TOPCO LLC
CIK 2146052
Shares
7.24M
Value
590.18M
Filed
Jun 30, 2026
JANUS HENDERSON GROUP LTD.
CIK 1274173
Shares
7.19M
Value
490M
Filed
Mar 31, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
6.67M
Value
81.73K
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
4.93M
Value
401.99M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
4.60M
Value
375.14M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
4.13M
Value
336.74M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.74M
Value
305M
Filed
Jun 30, 2026
COWEN AND COMPANY, LLC
CIK 48966
Shares
3.59M
Value
133.21M
Filed
Sep 30, 2024
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.21M
Value
180.09M
Filed
Jun 30, 2026
TORONTO DOMINION BANK
CIK 947263
Shares
2.17M
Value
176.67M
Filed
Jun 30, 2026
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 1177719
Shares
1.96M
Value
159.56M
Filed
Jun 30, 2026
HOOD RIVER CAPITAL MANAGEMENT LLC
CIK 1578177
Shares
1.74M
Value
141.82M
Filed
Jun 30, 2026
ARMISTICE CAPITAL, LLC
CIK 1601086
Shares
1.73M
Value
141.23M
Filed
Jun 30, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 1644956
Shares
1.72M
Value
140.52M
Filed
Jun 30, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
1.55M
Value
126.35M
Filed
Jun 30, 2026
CAMBER CAPITAL MANAGEMENT LP
CIK 1444043
Shares
1.50M
Value
76.44M
Filed
Mar 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 13.96M | 1.14B | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 8.80M | 668.69M | Dec 31, 2025 |
| 3 | BLACKROCK FINANCE, INC. | 1364742 | 7.77M | 237.67M | Jun 30, 2024 |
| 4 | RTW INVESTMENTS, LP | 1493215 | 7.75M | 631.88M | Jun 30, 2026 |
| 5 | JUPITER TOPCO LLC | 2146052 | 7.24M | 590.18M | Jun 30, 2026 |
| 6 | JANUS HENDERSON GROUP LTD. | 1274173 | 7.19M | 490M | Mar 31, 2026 |
| 7 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 6.67M | 81.73K | Jun 30, 2026 |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 4.93M | 401.99M | Jun 30, 2026 |
| 9 | STATE STREET CORP | 93751 | 4.60M | 375.14M | Jun 30, 2026 |
| 10 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 4.13M | 336.74M | Jun 30, 2026 |
| 11 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.74M | 305M | Jun 30, 2026 |
| 12 | COWEN AND COMPANY, LLC | 48966 | 3.59M | 133.21M | Sep 30, 2024 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.21M | 180.09M | Jun 30, 2026 |
| 14 | TORONTO DOMINION BANK | 947263 | 2.17M | 176.67M | Jun 30, 2026 |
| 15 | WESTFIELD CAPITAL MANAGEMENT CO LP | 1177719 | 1.96M | 159.56M | Jun 30, 2026 |
| 16 | HOOD RIVER CAPITAL MANAGEMENT LLC | 1578177 | 1.74M | 141.82M | Jun 30, 2026 |
| 17 | ARMISTICE CAPITAL, LLC | 1601086 | 1.73M | 141.23M | Jun 30, 2026 |
| 18 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1644956 | 1.72M | 140.52M | Jun 30, 2026 |
| 19 | D. E. SHAW & CO., INC. | 1009207 | 1.55M | 126.35M | Jun 30, 2026 |
| 20 | CAMBER CAPITAL MANAGEMENT LP | 1444043 | 1.50M | 76.44M | Mar 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.