SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in XFOR — X4 Pharmaceuticals, Inc
CIK 1446194
BALA CYNWYD, PA
Position in XFOR
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$3,536,196
+$3,447,656 QoQ
Shares Held
856,222
+3768.2% QoQ
Ownership
0.908%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in XFOR Over Time
Shares Held
Position Value (USD)
Derivatives in XFOR
reported options exposure · as of Dec 31, 2025CallValue
$511,600
CallShares
127,900
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 $1,162,367,415 across 355 Biotechnology names. XFOR ranks #70 (0.3% 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 XFOR
Export CSV
6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,536,196 | 856,222 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $88,540 | 22,135 | Shares | Other | 2026-02-17 | |
| 2025-12-31 | $511,600 | 127,900 | Call | Other | 2026-02-17 | |
| 2025-09-30 | $437,418 | 127,900 | Call | Other | 2025-11-14 | |
| 2025-06-30 | $243,010 | 127,900 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $66,159 | 34,821 | Shares | Other | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||