Hudson Bay Capital Management LP
Position in AGIO — Agios Pharmaceuticals, Inc.
CIK 1393825
STAMFORD, CT
Position in AGIO
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,753,408
-$968,592 QoQ
Shares Held
51,830
-48.2% QoQ
Ownership
0.087%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
24 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AGIO Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Hudson Bay Capital Management LP holds $535,016,974 across 151 Biotechnology names. AGIO ranks #46 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BMRN |
Biomarin Pharmaceutical Inc
|
974,776 | $55,065,096 | |
| 2 | APLS |
Apellis Pharmaceuticals, Inc.
|
1,190,416 | $47,890,435 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
|
32,001 | $24,725,252 | |
| 4 | BNTX |
BioNTech SE
|
275,000 | $24,442,000 | |
| 5 | IONS |
Ionis Pharmaceuticals Inc
|
295,100 | $22,159,059 | |
| 6 | ARGX |
Argenx SE
|
30,000 | $21,907,500 | |
| 7 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
45,000 | $20,094,300 | |
| 8 | IMCR |
Immunocore Holdings plc
|
633,174 | $19,090,196 |
All Filings in AGIO
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,753,408 | 51,830 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $2,722,000 | 100,000 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $4,917,150 | 122,500 | Shares | Sole | 2025-12-15 | |
| 2025-06-30 | $4,323,800 | 130,000 | Shares | Sole | 2025-08-18 | |
| 2025-03-31 | $3,244,096 | 110,720 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $3,614,600 | 110,000 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $2,665,800 | 60,000 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $4,958,800 | 115,000 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $11,915,300 | 407,500 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $10,912,300 | 490,000 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,682,500 | 270,000 | Shares | Sole | 2023-12-07 | |
| 2023-06-30 | $7,363,200 | 260,000 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $6,201,900 | 270,000 | Shares | Sole | 2023-05-16 | |
| 2022-12-31 | $5,896,800 | 210,000 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $5,090,400 | 180,000 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $7,615,395 | 343,500 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $6,549,750 | 225,000 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $6,574,000 | 200,000 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $3,461,250 | 75,000 | Shares | Sole | 2021-12-29 | |
| 2021-06-30 | $3,031,050 | 55,000 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $4,389,400 | 85,000 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $7,803,213 | 180,088 | Shares | Sole | 2021-03-04 | |
| 2020-09-30 | $4,812,500 | 137,500 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $1,871,800 | 35,000 | Shares | Sole | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||