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Equibles

WELLINGTON MANAGEMENT GROUP LLP

Position in PTCT — Ptc Therapeutics, Inc.

CIK 902219 Boston, MA
Back to PTCT Full portfolio

Position in PTCT

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$336,743,224
+$68,133,208 QoQ
Shares Held
4,128,273
+4.7% QoQ
Ownership
4.95%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#6
of 383 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 88% None 12%

Common Shares in PTCT Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $15,052,705,482 across 207 Biotechnology names. PTCT ranks #19 (2.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 VRTX
Vertex Pharmaceuticals Inc / Ma
 3,247,658 $1,613,209,155
2 ARGX
Argenx SE
 930,548 $863,334,513
3 REGN
Regeneron Pharmaceuticals, Inc.
 1,270,087 $791,950,042
4 RVMD
Revolution Medicines, Inc.
 3,843,415 $719,794,757
5 ALNY
Alnylam Pharmaceuticals, Inc.
 2,110,407 $635,295,816
6 IONS
Ionis Pharmaceuticals Inc
 7,651,415 $606,680,693
7 CYTK
Cytokinetics Inc
 6,931,770 $590,517,483
8 MDGL
Madrigal Pharmaceuticals, Inc.
 825,714 $443,367,129

All Filings in PTCT

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $336,743,224 4,128,273
2026-03-31 $268,610,016 3,942,610
2025-12-31 $293,766,181 3,867,380
2025-09-30 $301,855,644 4,918,619
2025-06-30 $229,261,696 4,694,138
2025-03-31 $276,161,001 5,419,172
2024-12-31 $216,090,728 4,787,123
2024-09-30 $292,822,840 7,892,799
2024-06-30 $251,019,168 8,208,606
2024-03-31 $258,946,522 8,901,565
2023-12-31 $270,545,575 9,816,603
2023-09-30 $211,464,969 9,436,188
2023-06-30 $276,001,420 6,786,364
2023-03-31 $338,968,149 6,997,691
2022-12-31 $283,637,717 7,430,907
2022-09-30 $376,051,310 7,491,062
2022-06-30 $281,762,206 7,033,505
2022-03-31 $304,096,682 8,150,541
2021-12-31 $324,815,518 8,155,047
2021-09-30 $326,213,631 8,766,827
2021-06-30 $369,075,938 8,731,392
2021-03-31 $435,163,401 9,190,357
2020-12-31 $569,951,781 9,338,879
2020-09-30 $442,850,406 9,472,736
2020-06-30 $407,122,485 8,023,699
2020-03-31 $278,284,671 6,238,168