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Equibles

FMR LLC

Position in XFOR — X4 Pharmaceuticals, Inc

CIK 315066 BOSTON, MA
Back to XFOR Full portfolio

Position in XFOR

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$38,862,138
+$5,395,096 QoQ
Shares Held
8,321,657
+2.7% QoQ
Ownership
8.39%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#2
of 89 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in XFOR Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

FMR LLC holds $61,908,415,112 across 370 Biotechnology names. XFOR ranks #127 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ARGX
Argenx SE
 5,231,452 $4,853,584,218
2 ALNY
Alnylam Pharmaceuticals, Inc.
 15,023,962 $4,522,663,276
3 MRNA
Moderna, Inc.
 51,859,891 $3,631,748,165
4 ROIV
Roivant Sciences Ltd.
 81,020,390 $2,867,311,601
5 RVMD
Revolution Medicines, Inc.
 12,200,422 $2,284,895,029
6 IONS
Ionis Pharmaceuticals Inc
 24,631,956 $1,953,067,789
7 INSM
INSMED Inc
 16,143,583 $1,721,228,815
8 KRYS
Krystal Biotech, Inc.
 4,418,197 $1,642,111,277

All Filings in XFOR

Export CSV
22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $38,862,138 8,321,657
2026-03-31 $33,467,042 8,103,400
2025-12-31 $33,996,400 8,499,100
2025-06-30 $3,224 1,697
2025-03-31 $9,703 41,118
2024-12-31 $3,447 4,697
2024-09-30 $7,453 11,142
2024-06-30 $2,087 3,599
2024-03-31 $3,518 2,531
2023-12-31 $620 739
2023-09-30 $1,717 1,576
2023-06-30 $33,235 17,132
2023-03-31 $2 3
2022-09-30 $17,099 10,000
2021-12-31 $121,440 53,031
2021-09-30 $808,475 152,831
2021-06-30 $1,382,029 212,620
2021-03-31 $1,830,658 212,620
2020-12-31 $1,367,146 212,620
2020-09-30 $1,502,344 221,912
2020-06-30 $6,503,495 697,800
2020-03-31 $6,977,999 697,800