Position in OBIO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$336,536
+$211,310 QoQ
Shares Held
79,185
+162.4% QoQ
Ownership
0.132%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2023
11 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in OBIO Over Time
Shares Held
Position Value (USD)
Derivatives in OBIO
reported options exposure · as of Dec 31, 2025CallValue
$100,430
CallShares
24,200
PutValue
$68,890
PutShares
16,600
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Biotechnology
Healthcare · as of Mar 31, 2026CITADEL ADVISORS LLC holds $5,784,241,435 across 374 Biotechnology names. OBIO ranks #281 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INSM |
INSMED Inc
|
2,182,571 | $356,894,009 | |
| 2 | ONC |
BeOne Medicines Ltd.
|
1,032,298 | $306,561,536 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
4,512,634 | $254,918,694 | |
| 4 | JAZZ |
Jazz Pharmaceuticals plc
|
1,259,444 | $238,097,887 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
453,843 | $237,573,195 | |
| 6 | BBIO |
BridgeBio Pharma, Inc.
|
3,173,940 | $235,696,783 | |
| 7 | TERN |
Terns Pharmaceuticals, Inc.
|
3,218,810 | $169,695,662 | |
| 8 | PTGX |
Protagonist Therapeutics, Inc
|
1,551,900 | $163,570,260 |
All Filings in OBIO
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $336,536 | 79,185 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $68,890 | 16,600 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $100,430 | 24,200 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $125,226 | 30,175 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $133,924 | 54,002 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $132,501 | 49,441 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $87,654 | 20,480 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $49,116 | 12,279 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $103,391 | 20,115 | Shares | Defined | 2024-11-14 | |
| 2023-12-31 | $92,322 | 10,112 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $1,486,071 | 170,421 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $1,192,947 | 170,421 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $3,335,138 | 170,421 | Shares | Defined | 2023-05-15 | |
| No filing history on record for this holder in this stock. | ||||||