X4 Pharmaceuticals, Inc - Common Stock, par value $0.001 per share (XFOR)

Historical Holders from Q1 2025 to Q3 2025

Symbol
XFOR on Nasdaq
Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
22,465,656
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
13,652,271
Holdings value
$46,691,414
% of all portfolios
0%
Number of holders
40
Number of buys
20
Number of sells
29
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of X4 Pharmaceuticals, Inc - Common Stock, par value $0.001 per share (XFOR) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
FMR LLC 15% $29,402,636 8,499,100 FMR LLC 31 Oct 2025
PERCEPTIVE ADVISORS LLC 7.6% $20,980,760 6,064,680 Perceptive Advisors LLC 27 Oct 2025
Growth Equity Opportunities 18 VGE, LLC 6.2% -38% $17,496,802 +$9,734,867 5,057,610 +125% Growth Equity Opportunities 18 VGE, LLC 27 Oct 2025
Empery Asset Management, LP 10% $8,642,391 2,498,162 Empery Asset Management, LP 30 Sep 2025
Coastlands Capital LP 10% 0% $7,773,911 +$37,418 2,491,638 +0.48% Coastlands Capital LP 03 Oct 2025
Bain Capital Life Sciences Fund, L.P. 10% $7,845,813 2,436,588 Bain Capital Life Sciences Fund, L.P. 09 Sep 2025
Deep Track Capital, LP 10% $9,278,620 2,366,995 Deep Track Capital, LP 12 Aug 2025
Trails Edge Capital Partners, LP 9.9% $9,083,240 2,317,153 Trails Edge Capital Partners, LP 11 Aug 2025
Nantahala Capital Management, LLC 10% $7,764,222 2,244,319 Nantahala Capital Management, LLC 30 Sep 2025
BIOTECHNOLOGY VALUE FUND L P 9.9% $8,795,143 2,243,659 BVF PARTNERS L P/IL 13 Aug 2025
BlackRock, Inc. 3% $576,782 179,125 BlackRock, Inc. 30 Jun 2025
As of 30 Sep 2025 X4 Pharmaceuticals, Inc - Common Stock, par value $0.001 per share (XFOR) has 40 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 13,652,271 shares of 22,465,656 outstanding shares and own 61% of the company stock as of 30 Sep 2025.

Top 25 institutional shareholders of X4 Pharmaceuticals, Inc - Common Stock, par value $0.001 per share (XFOR) own 61% of the company based on 13F filings as of 30 Sep 2025

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
Bain Capital Life Sciences Investors, LLC 11% 2,436,588 +332% 0.55% $8,333,131
BVF INC/IL 9.9% 2,233,742 0.31% $7,639,398
Nantahala Capital Management, LLC 9.9% 2,228,350 0.47% $7,620,957
Rosalind Advisors, Inc. 6.9% 1,544,607 1.9% $5,282,555
Deep Track Capital, LP 5% 1,122,484 0.11% $3,838,895
Stonepine Capital Management, LLC 4.7% 1,056,338 2.9% $3,612,676
KINGDON CAPITAL MANAGEMENT, L.L.C. 4.2% 933,332 +300% 0.5% $3,191,995
STEMPOINT CAPITAL LP 2.5% 555,411 0.38% $1,899,506
VANGUARD GROUP INC 1.8% 410,485 +77% 0% $1,403,859
BOOTHBAY FUND MANAGEMENT, LLC 1.5% 343,963 0.03% $1,176,353
Pale Fire Capital SE 0.81% 180,851 +201% 0.07% $618,510
UBS Group AG 0.71% 159,835 +45% 0% $546,635
Palumbo Wealth Management LLC 0.42% 95,327 0.1% $326,019
GEODE CAPITAL MANAGEMENT, LLC 0.35% 79,658 +62% 0% $272,472
MILLENNIUM MANAGEMENT LLC 0.29% 64,795 -17% 0% $221,599
BlackRock, Inc. 0.28% 61,934 -65% 0% $211,814
STATE STREET CORP 0.17% 38,734 +149% 0% $132,470
Point72 Asset Management, L.P. 0.1% 21,666 -0% 0% $74,098
BANK OF AMERICA CORP /DE/ 0.09% 19,304 -76% 0% $66,020
RENAISSANCE TECHNOLOGIES LLC 0.09% 19,177 +10% 0% $65,585
TWO SIGMA INVESTMENTS, LP 0.06% 13,868 0% $47,429
Tower Research Capital LLC (TRC) 0.05% 10,679 +105% 0% $36,522
GROUP ONE TRADING LLC 0.02% 3,998 0% 0% $13,673
MORGAN STANLEY 0.02% 3,728 -66% 0% $12,750
Point72 Asia (Singapore) Pte. Ltd. 0.01% 2,914 0% $9,966

Institutional Holders of X4 Pharmaceuticals, Inc - Common Stock, par value $0.001 per share (XFOR) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 13,652,271 $46,691,414 +$40,049,285 $3.42 40
2025 Q2 2,150,633 $4,086,190 +$4,064,929 $1.90 49
2025 Q1 83,045 $20,007 +$20,005 $0.2371 2