Position in MGNX
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$1,758,590
-$261,835 QoQ
Shares Held
608,509
-51.5% QoQ
Ownership
0.957%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MGNX Over Time
Shares Held
Position Value (USD)
Derivatives in MGNX
reported options exposure · as of Dec 31, 2024CallValue
$0
CallShares
0
PutValue
$450,775
PutShares
138,700
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, 2026JANE STREET GROUP, LLC holds $1,255,284,514 across 317 Biotechnology names. MGNX ranks #91 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BBIO |
BridgeBio Pharma, Inc.
|
1,757,672 | $130,524,721 | |
| 2 | RPRX |
Royalty Pharma plc
|
2,400,382 | $115,146,324 | |
| 3 | TGTX |
Tg Therapeutics, Inc.
|
2,041,669 | $67,824,242 | |
| 4 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
122,946 | $54,900,305 | |
| 5 | HALO |
Halozyme Therapeutics, Inc.
|
831,707 | $53,753,223 | |
| 6 | EXEL |
Exelixis, Inc.
|
1,087,030 | $46,622,715 | |
| 7 | JAZZ |
Jazz Pharmaceuticals plc
|
223,615 | $42,274,415 | |
| 8 | BNTX |
BioNTech SE
|
336,757 | $29,930,962 |
All Filings in MGNX
Export CSV
35 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,758,590 | 608,509 | Shares | Defined | 2026-05-12 | |
| 2025-12-31 | $2,020,425 | 1,254,923 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $1,422,444 | 846,694 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $917,425 | 758,204 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $312,962 | 246,427 | Shares | Defined | 2025-05-19 | |
| 2024-12-31 | $450,775 | 138,700 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $1,476,595 | 454,337 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $457,639 | 139,100 | Put | Defined | 2024-11-15 | |
| 2024-09-30 | $1,718,027 | 522,197 | Shares | Defined | 2024-11-15 | |
| 2024-09-30 | $68,761 | 20,900 | Call | Defined | 2024-11-15 | |
| 2024-06-30 | $2,070,604 | 487,201 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $5,571,857 | 378,523 | Shares | Defined | 2024-05-16 | |
| 2023-12-31 | $700,710 | 72,839 | Shares | Defined | 2024-02-15 | |
| 2023-09-30 | $66,721 | 14,318 | Shares | Defined | 2023-11-15 | |
| 2023-03-31 | $302,495 | 42,189 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $207,861 | 30,978 | Shares | Defined | 2023-02-15 | |
| 2022-06-30 | $203,537 | 68,996 | Shares | Defined | 2022-08-16 | |
| 2021-12-31 | $462,240 | 28,800 | Call | Defined | 2022-02-15 | |
| 2021-12-31 | $284,004 | 17,695 | Shares | Defined | 2022-02-15 | |
| 2021-09-30 | $296,446 | 14,157 | Shares | Defined | 2021-11-16 | |
| 2021-09-30 | $251,280 | 12,000 | Put | Defined | 2021-11-16 | |
| 2021-09-30 | $355,980 | 17,000 | Call | Defined | 2021-11-16 | |
| 2021-06-30 | $706,418 | 26,300 | Call | Defined | 2021-08-16 | |
| 2021-06-30 | $510,340 | 19,000 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $212,864 | 7,925 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $821,730 | 25,800 | Call | Defined | 2021-05-18 | |
| 2021-03-31 | $927,757 | 29,129 | Shares | Defined | 2021-05-18 | |
| 2021-03-31 | $1,006,460 | 31,600 | Put | Defined | 2021-05-18 | |
| 2020-12-31 | $340,979 | 14,916 | Shares | Defined | 2021-02-17 | |
| 2020-12-31 | $281,178 | 12,300 | Put | Defined | 2021-02-17 | |
| 2020-12-31 | $441,198 | 19,300 | Call | Defined | 2021-02-17 | |
| 2020-09-30 | $662,497 | 26,300 | Call | Defined | 2020-11-17 | |
| 2020-09-30 | $377,521 | 14,987 | Shares | Defined | 2020-11-17 | |
| 2020-06-30 | $356,789 | 12,779 | Shares | Defined | 2020-08-17 | |
| 2020-06-30 | $309,912 | 11,100 | Call | Defined | 2020-08-17 | |
| No filing history on record for this holder in this stock. | ||||||