Position in ARDX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,880,626
-$6,347,060 QoQ
Shares Held
313,961
-77.8% QoQ
Ownership
0.127%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
18 quarters on record
Voting authority
Sole 96%
Shared 0%
None 4%
Common Shares in ARDX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026D. E. Shaw & Co., Inc. holds $4,371,472,260 across 180 Biotechnology names. ARDX ranks #123 (0.0% 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.
|
1,640,381 | $111,759,157 | |
| 8 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
248,960 | $111,170,598 |
All Filings in ARDX
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,880,626 | 313,961 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $8,227,686 | 1,411,267 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $18,254,904 | 3,313,050 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $9,637,970 | 2,458,666 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $9,410,137 | 1,916,525 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $7,446,146 | 1,468,668 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $105,410 | 15,299 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $79,412 | 10,717 | Shares | Defined | 2024-08-14 | |
| 2022-06-30 | $308,374 | 522,668 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $699,831 | 654,048 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $132,851 | 120,775 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $1,234,415 | 935,163 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $2,286,863 | 301,697 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $3,028,577 | 457,489 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $5,488,267 | 848,264 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $4,773,698 | 909,276 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $5,531,944 | 799,414 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $3,845,344 | 676,402 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||