Position in MGNX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,306,936
+$1,196,586 QoQ
Shares Held
452,227
+559.8% QoQ
Ownership
0.711%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 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 Mar 31, 2026CallValue
$134,674
CallShares
46,600
PutValue
$40,460
PutShares
14,000
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, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $1,176,415,994 across 355 Biotechnology names. MGNX ranks #146 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CYTK |
Cytokinetics Inc
|
898,951 | $59,249,860 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
174,268 | $57,660,053 | |
| 3 | AGIO |
Agios Pharmaceuticals, Inc.
|
1,344,953 | $45,499,759 | |
| 4 | ABVX |
Abivax S.A.
|
381,282 | $42,455,750 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
398,943 | $29,625,507 | |
| 6 | INSM |
INSMED Inc
|
173,630 | $28,391,977 | |
| 7 | CRSP |
CRISPR Therapeutics AG
|
593,406 | $28,228,323 | |
| 8 | TERN |
Terns Pharmaceuticals, Inc.
|
521,571 | $27,497,223 |
All Filings in MGNX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $134,674 | 46,600 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $1,306,936 | 452,227 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $40,460 | 14,000 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $21,252 | 13,200 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $110,350 | 68,541 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $111,888 | 66,600 | Put | Other | 2025-11-14 | |
| 2025-09-30 | $59,976 | 35,700 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $375,972 | 223,793 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $237,916 | 196,625 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $24,684 | 20,400 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $25,531 | 21,100 | Put | Other | 2025-08-14 | |
| 2025-03-31 | $51,943 | 40,900 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $143,380 | 112,898 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $15,113 | 11,900 | Call | Other | 2025-05-14 | |
| 2024-12-31 | $249,678 | 76,824 | Shares | Other | 2025-02-14 | |
| 2024-12-31 | $100,425 | 30,900 | Put | Other | 2025-02-14 | |
| 2024-09-30 | $134,890 | 41,000 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $135,877 | 41,300 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $157,534 | 47,883 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $226,525 | 53,300 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $433,869 | 102,087 | Shares | Defined | 2024-08-15 | |
| 2024-06-30 | $169,150 | 39,800 | Call | Defined | 2024-08-15 | |
| 2024-03-31 | $1,448,448 | 98,400 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $710,976 | 48,300 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $7,829,891 | 531,922 | Shares | Defined | 2024-05-07 | |
| 2023-12-31 | $771,735 | 80,222 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $183,742 | 19,100 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $76,890 | 16,500 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $851,852 | 182,801 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $1,521,143 | 284,326 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $292,645 | 54,700 | Put | Defined | 2023-08-11 | |
| 2023-03-31 | $2,202,537 | 307,188 | Shares | Defined | 2023-05-16 | |
| 2023-03-31 | $548,505 | 76,500 | Put | Defined | 2023-05-16 | |
| 2022-12-31 | $498,700 | 74,322 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $36,676 | 10,600 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $127,763 | 36,926 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $273,703 | 92,781 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $505,297 | 57,355 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $279,270 | 17,400 | Call | Defined | 2022-04-05 | |
| 2021-12-31 | $1,560,990 | 97,258 | Shares | Defined | 2022-04-05 | |
| 2021-12-31 | $426,930 | 26,600 | Put | Defined | 2022-04-05 | |
| 2021-09-30 | $207,306 | 9,900 | Call | Defined | 2021-11-15 | |
| 2021-09-30 | $971,616 | 46,400 | Put | Defined | 2021-11-15 | |
| 2021-09-30 | $1,888,620 | 90,192 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $1,614,044 | 60,091 | Shares | Defined | 2021-08-11 | |
| 2021-06-30 | $1,160,352 | 43,200 | Put | Defined | 2021-08-11 | |
| 2021-06-30 | $1,171,096 | 43,600 | Call | Defined | 2021-08-11 | |
| 2021-03-31 | $2,121,210 | 66,600 | Call | Defined | 2021-05-17 | |
| 2021-03-31 | $1,528,800 | 48,000 | Put | Defined | 2021-05-17 | |
| 2021-03-31 | $363,599 | 11,416 | Shares | Defined | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||