SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in ATNM — Actinium Pharmaceuticals, Inc.
CIK 1446194
BALA CYNWYD, PA
Position in ATNM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$123,377
+$11,214 QoQ
Shares Held
123,998
+50.3% QoQ
Ownership
0.395%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
23 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ATNM Over Time
Shares Held
Position Value (USD)
Derivatives in ATNM
reported options exposure · as of Dec 31, 2025CallValue
$17,816
CallShares
13,100
PutValue
$0
PutShares
0
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. ATNM ranks #310 (0.0% 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 ATNM
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $123,377 | 123,998 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $112,163 | 82,474 | Shares | Other | 2026-02-17 | |
| 2025-12-31 | $17,816 | 13,100 | Call | Other | 2026-02-17 | |
| 2025-09-30 | $27,520 | 17,200 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $168,703 | 105,440 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $116,300 | 83,072 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $172,241 | 106,982 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $17,227 | 10,700 | Call | Other | 2025-05-14 | |
| 2024-12-31 | $18,144 | 14,400 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $40,243 | 31,939 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $42,277 | 22,488 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $292,300 | 39,500 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $305,620 | 41,300 | Call | Defined | 2024-08-15 | |
| 2024-06-30 | $301,246 | 40,709 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $422,037 | 53,900 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $762,109 | 97,332 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $742,284 | 94,800 | Call | Defined | 2024-05-07 | |
| 2023-12-31 | $170,180 | 33,500 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $408,940 | 80,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $309,859 | 60,996 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $180,560 | 30,500 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $439,412 | 74,225 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $477,744 | 80,700 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $191,436 | 25,800 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $491,946 | 66,300 | Put | Defined | 2023-08-11 | |
| 2023-06-30 | $498,245 | 67,149 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $809,865 | 85,700 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $637,875 | 67,500 | Put | Defined | 2023-05-16 | |
| 2023-03-31 | $2,314,096 | 244,878 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $560,190 | 52,600 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $441,975 | 41,500 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $1,591,674 | 149,453 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $89,571 | 12,137 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $188,190 | 25,500 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $963,828 | 130,600 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $457,431 | 95,100 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $734,487 | 152,700 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $269,191 | 55,965 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $343,903 | 67,300 | Call | Defined | 2022-05-16 | |
| 2022-03-31 | $275,940 | 54,000 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $181,737 | 35,565 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $670,716 | 111,600 | Call | Defined | 2022-04-05 | |
| 2021-12-31 | $130,417 | 21,700 | Put | Defined | 2022-04-05 | |
| 2021-09-30 | $1,844,652 | 208,200 | Call | Defined | 2021-11-15 | |
| 2021-09-30 | $540,460 | 61,000 | Put | Defined | 2021-11-15 | |
| 2021-06-30 | $532,343 | 67,300 | Call | Defined | 2021-08-11 | |
| 2021-06-30 | $174,281 | 22,033 | Shares | Defined | 2021-08-11 | |
| 2021-06-30 | $248,374 | 31,400 | Put | Defined | 2021-08-11 | |
| 2021-03-31 | $494,538 | 64,900 | Call | Defined | 2021-05-17 | |
| 2021-03-31 | $149,009 | 19,555 | Shares | Defined | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||