XFOR
X4 PHARMA (XFOR)
NASDAQ
$3.21-$0.02 (-0.77%)
Price as of Nov 12, 2026 7:38 AM EST
  • $329.8M
    Market Cap
  • -16.54%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
10.83%
11.1M
-150,026 (-1.36%)
Dec 31, 2024
BLACKROCK INC.
10.45%
10.7M
+1.9M (+18.17%)
Jun 30, 2024
MORGAN STANLEY
9.27%
9.5M
-5,713 (-0.06%)
Jun 30, 2026
BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC
7.80%
8.0M
0 (0.00%)
Jun 30, 2026
PERCEPTIVE ADVISORS LLC
7.77%
7.9M
+1.2M (+15.07%)
Jun 30, 2026
SATURN V CAPITAL MANAGEMENT LLC
6.83%
7.0M
+516,697 (+7.41%)
Jun 30, 2026
SATURN V CAPITAL MANAGEMENT LP
6.83%
7.0M
+516,697 (+7.41%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.3B (82.87%)
  • Mutual Funds269.5M (16.60%)
  • Insiders8.6M (0.53%)
  • Other0 (0.00%)

Insider Transactions

  • 0.53% (8.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 3
    Number of InsiderSelling (last 12 months)
  • $2.7M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
KIRSKE DAVID
Chief Financial Officer
Sell
Oct 01, 2026
$33,658.33
11,767
$2.86
155,983
Volpone John
President
Sell
Aug 12, 2026
$109,228.03
24,576
$4.44
265,305
Craig Adam R
Executive Chairman
Sell
Aug 12, 2026
$210,829.30
47,436
$4.44
328,651
Stewart Murray
Award
Jan 01, 2026
$0.00
110,000
$0.00
0
de Craecker Francoise
Award
Jan 01, 2026
$0.00
110,000
$0.00
0
Bridger Gary
Award
Jan 01, 2026
$0.00
110,000
$0.00
0
Craig Adam R
Executive Chairman
Award
Oct 29, 2025
$0.00
2.3M
$0.00
2.3M
KIRSKE DAVID
Chief Financial Officer
Award
Oct 29, 2025
$0.00
1.6M
$0.00
1.6M
Volpone John
President
Award
Oct 29, 2025
$0.00
2.3M
$0.00
2.3M
Craig Adam R
Executive Chairman
Buy
Oct 23, 2025
$249,997.40
86,206
$2.90
376,087
Craig Adam R
Executive Chairman
Award
Aug 14, 2025
$0.00
529,201
$0.00
529,201
Volpone John
President
Award
Aug 14, 2025
$0.00
529,201
$0.00
529,201
Craig Adam R
Executive Chairman
Award
Aug 14, 2025
$0.00
289,881
$0.00
289,881
Volpone John
President
Award
Aug 14, 2025
$0.00
289,881
$0.00
289,881
Craig Adam R
Executive Chairman
Award
Aug 12, 2025
$0.00
1.6M
$0.00
1.6M
Volpone John
President
Award
Aug 12, 2025
$0.00
1.6M
$0.00
1.6M
MCGIRR DAVID W J
Award
Jun 09, 2025
$0.00
1,500
$0.00
4,722
Woods Keith
Award
Jun 09, 2025
$0.00
1,500
$0.00
6,000
de Craecker Francoise
Award
Jun 09, 2025
$0.00
1,500
$0.00
4,722
Stewart Murray
Award
Jun 09, 2025
$0.00
1,500
$0.00
7,883
Bridger Gary
Award
Jun 09, 2025
$0.00
1,500
$0.00
4,722
WYZGA MICHAEL S
Award
Jun 09, 2025
$0.00
1,500
$0.00
5,555
Thoren Natasha Fay
Chief Legal Officer
Award
May 20, 2025
$0.00
3,333
$0.00
9,462
Baldry Mark
Chief Commercial Officer
Buy
May 16, 2025
$2,561.42
1,032
$2.48
25,337
Ragan Paula
President and CEO
Award
Feb 12, 2025
$0.00
2.3M
$0.00
3.3M
DiBiase Mary
Chief Operating Officer
Award
Feb 12, 2025
$0.00
650,000
$0.00
1.1M
Mostafa Adam S.
Chief Financial Officer
Award
Feb 12, 2025
$0.00
850,000
$0.00
850,000
Baldry Mark
Chief Commercial Officer
Award
Feb 12, 2025
$0.00
600,000
$0.00
729,173
Arbet-Engels Christophe
Chief Medical Officer
Award
Feb 12, 2025
$0.00
850,000
$0.00
864,207
Baldry Mark
Chief Commercial Officer
Sell
Jan 24, 2025
$13,241.10
29,159
$0.45
94,123