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Equibles

RENAISSANCE TECHNOLOGIES LLC

Position in XFOR — X4 Pharmaceuticals, Inc

CIK 1037389 NEW YORK, NY
Back to XFOR Full portfolio

Position in XFOR

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$84,527
+$18,942 QoQ
Shares Held
18,100
-5.6% QoQ
Ownership
0.018%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#60
of 89 holders
Holding Since
Mar 2020
17 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

RENAISSANCE TECHNOLOGIES LLC holds $3,950,489,724 across 311 Biotechnology names. XFOR ranks #277 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 EXEL
Exelixis, Inc.
 13,427,993 $730,617,099
2 CORT
Corcept Therapeutics Inc
 5,261,628 $457,498,554
3 INCY
Incyte Corp
 3,512,132 $398,135,283
4 VRTX
Vertex Pharmaceuticals Inc / Ma
 320,008 $158,957,573
5 JAZZ
Jazz Pharmaceuticals plc
 562,073 $135,442,730
6 RPRX
Royalty Pharma plc
 1,935,800 $108,540,306
7 TVTX
Travere Therapeutics, Inc.
 1,833,079 $104,137,217
8 GMAB
Genmab A/S
 3,517,850 $96,635,339

All Filings in XFOR

Export CSV
17 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $84,527 18,100
2025-09-30 $65,585 19,177
2025-06-30 $32,995 17,366
2025-03-31 $4,743 20,100
2023-03-31 $8,780 10,092
2022-12-31 $94,130 94,794
2022-09-30 $414,151 242,194
2022-06-30 $208,627 216,194
2022-03-31 $302,914 173,094
2021-12-31 $314,403 137,294
2021-09-30 $636,884 120,394
2021-06-30 $849,510 130,694
2021-03-31 $1,343,538 156,044
2020-12-31 $1,044,386 162,424
2020-09-30 $1,056,417 156,044
2020-06-30 $958,506 102,844
2020-03-31 $538,439 53,844