RHUMBLINE ADVISERS

Position in XFOR — X4 Pharmaceuticals, Inc

CIK 1115418 BOSTON, MA

Position in XFOR

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$444,028

+$399,563 QoQ

Shares Held

95,081

+1414.0% QoQ

Ownership

0.096%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#35

of 89 holders

Holding Since

Jun 2020

13 quarters on record

Voting authority Sole 17% Shared 0% None 83%

Healthcare · as of Jun 30, 2026

RHUMBLINE ADVISERS holds $1,414,750,230 across 329 Biotechnology names. XFOR ranks #195 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	396,380	$196,893,837
2	REGN	Regeneron Pharmaceuticals, Inc.	157,794	$98,390,870
3	MRNA	Moderna, Inc.	809,853	$56,714,005
4	ALNY	Alnylam Pharmaceuticals, Inc.	165,579	$49,844,246
5	INCY	Incyte Corp	428,533	$48,578,500
6	RVMD	Revolution Medicines, Inc.	226,008	$42,326,778
7	ROIV	Roivant Sciences Ltd.	1,178,789	$41,717,342
8	JAZZ	Jazz Pharmaceuticals plc	163,018	$39,282,447

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$444,028	95,081	-49.5%	Shares	Sole	2026-08-12
2025-03-31	$44,465	188,415	+5.4%	Shares	Sole	2025-05-29
2024-12-31	$131,184	178,725	+0.1%	Shares	Sole	2025-05-29
2024-09-30	$119,401	178,478	-4.7%	Shares	Sole	2024-11-12
2024-06-30	$108,602	187,246	+14.6%	Shares	Sole	2024-08-01
2024-03-31	$227,146	163,415	+1.9%	Shares	Sole	2024-05-09
2023-12-31	$134,550	160,370	0.0%	Shares	Sole	2024-02-08
2023-09-30	$174,803	160,370	+4.2%	Shares	Sole	2023-11-09
2023-06-30	$298,608	153,922	+646.0%	Shares	Sole	2023-08-08
2021-03-31	$177,650	20,633	-3.5%	Shares	Sole	2021-05-06
2020-12-31	$137,524	21,388	+18.8%	Shares	Sole	2021-02-10
2020-09-30	$121,927	18,010	-8.0%	Shares	Sole	2020-11-12
2020-06-30	$182,392	19,570	—	Shares	Sole	2020-08-13
No filing history on record for this holder in this stock.