Position in PTCT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$111,759,157
-$20,790,359 QoQ
Shares Held
1,640,381
-6.0% QoQ
Ownership
19.8%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 96.40327460510699.ToString("F0")%
Shared 0.ToString("F0")%
None 3.5967253948930153.ToString("F0")%
Common Shares in PTCT Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026D. E. Shaw & Co., Inc. holds $4,382,181,531 across 180 Biotechnology names. PTCT ranks #7 (2.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INSM |
INSMED Inc
|
5,625,825 | $919,934,903 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,059,062 | $350,411,843 | |
| 3 | BBIO |
BridgeBio Pharma, Inc.
|
2,545,486 | $189,027,789 | |
| 4 | PCVX |
Vaxcyte, Inc.
|
2,865,318 | $166,503,628 | |
| 5 | EXEL |
Exelixis, Inc.
|
3,603,063 | $154,535,371 | |
| 6 | HALO |
Halozyme Therapeutics, Inc.
|
1,868,708 | $120,774,597 | |
| 7 | PTCT |
Ptc Therapeutics, Inc.
This page
|
1,640,381 | $111,759,157 | |
| 8 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
248,960 | $111,170,598 |
All Filings in PTCT
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $111,759,157 | 1,640,381 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $132,549,516 | 1,744,991 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $133,455,692 | 2,174,608 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $119,057,120 | 2,437,697 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $73,651,417 | 1,445,279 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $69,619,060 | 1,542,292 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $52,664,896 | 1,419,539 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $41,516,569 | 1,357,638 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $35,657,008 | 1,225,748 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $37,122,410 | 1,346,967 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $18,842,528 | 840,809 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $29,810,621 | 732,988 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $34,175,291 | 705,518 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $36,066,030 | 944,879 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $52,910,046 | 1,053,985 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $38,168,646 | 952,787 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $38,705,020 | 1,037,390 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $47,596,053 | 1,194,980 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $44,634,622 | 1,199,533 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $51,149,193 | 1,210,059 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $55,354,753 | 1,169,055 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $59,421,431 | 973,643 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $41,115,268 | 879,471 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $45,390,328 | 894,567 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $44,430,221 | 995,970 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||