MBRX
Moleculin Btech (MBRX)
NASDAQ
$5.70-$0.61 (-9.67%)
Price as of Oct 22, 2026 7:30 PM EDT
  • $128.6M
    Market Cap
  • -97.17%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
GEODE CAPITAL MANAGEMENT, LLC
4.64%
47,252
+14,923 (+31.58%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
4.14%
42,215
+28,346 (+67.15%)
Jun 30, 2026
VANGUARD FIDUCIARY TRUST CO
2.93%
29,883
+23,811 (+79.68%)
Jun 30, 2026
XTX TOPCO LTD
2.25%
22,942
+22,942 (+100.00%)
Jun 30, 2026
OCCUDO QUANTITATIVE STRATEGIES LP
2.16%
22,013
-1,471 (-6.68%)
Dec 31, 2021
MORGAN STANLEY
1.97%
20,036
+20,000 (+99.82%)
Jun 30, 2026
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC
1.95%
19,883
-7,517 (-37.81%)
Dec 31, 2021

Current Ownership Distribution

  • Institutions31.7M (62.57%)
  • Mutual Funds16.0M (31.66%)
  • Insiders2.9M (5.77%)
  • Other0 (0.00%)

Insider Transactions

  • 5.77% (2.9M)
    Current InsiderOwnership (%, shares)
  • 3
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
KLEMP WALTER V
CEO and President
Award
Oct 15, 2026
$0.00
415,000
$0.00
2.3M
KLEMP WALTER V
CEO and President
Award
Oct 15, 2026
$0.00
415,000
$0.00
2.8M
KLEMP WALTER V
CEO and President
Exempt
Oct 15, 2026
$0.00
207,500
$0.00
2.5M
KLEMP WALTER V
CEO and President
Exempt
Oct 15, 2026
$0.00
207,500
$0.00
771,840
KLEMP WALTER V
CEO and President
In Kind
Oct 15, 2026
$18,008.70
48,659
$0.37
723,181
Foster Jonathan P.
Chief Financial Officer
Buy
Aug 03, 2026
$0.00
879,999
$0.00
1.0M
KLEMP WALTER V
CEO and President
Award
Aug 03, 2026
$0.00
1.6M
$0.00
1.9M
Foster Jonathan P.
Chief Financial Officer
Buy
Aug 03, 2026
$0.00
293,333
$0.00
305,673
PICKER DONALD H
Chief Science Officer
Buy
Aug 03, 2026
$0.00
519,999
$0.00
539,595
KLEMP WALTER V
CEO and President
Buy
Aug 03, 2026
$0.00
533,333
$0.00
564,340
PICKER DONALD H
Chief Science Officer
Buy
Aug 03, 2026
$0.00
173,333
$0.00
174,086
Foster Jonathan P.
EVP & CFO
Award
Nov 12, 2025
$0.00
600,000
$0.00
1.6M
PICKER DONALD H
CSO
Award
Nov 12, 2025
$0.00
200,000
$0.00
295,508
George Robert E.
Award
Nov 12, 2025
$0.00
150,000
$0.00
165,336
PICKER DONALD H
CSO
Award
Nov 12, 2025
$0.00
200,000
$0.00
495,508
Climaco John M
Award
Nov 12, 2025
$0.00
150,000
$0.00
165,169
CANNON MICHAEL D
Award
Nov 12, 2025
$0.00
150,000
$0.00
165,336
KLEMP WALTER V
CEO and President
Award
Nov 12, 2025
$0.00
830,000
$0.00
3.2M
Cermak Elizabeth
Award
Nov 12, 2025
$0.00
150,000
$0.00
164,668
Foster Jonathan P.
EVP & CFO
Award
Nov 12, 2025
$0.00
400,000
$0.00
2.0M
KLEMP WALTER V
CEO and President
Award
Nov 12, 2025
$0.00
750,000
$0.00
4.0M
Foster Jonathan P.
Chief Financial Officer
Exempt
Nov 04, 2025
$0.00
20,625
$0.00
1.0M
KLEMP WALTER V
CEO and President
Exempt
Nov 04, 2025
$0.00
28,750
$0.00
2.4M
PICKER DONALD H
Chief Science Officer
Exempt
Nov 04, 2025
$0.00
8,750
$0.00
95,508
KLEMP WALTER V
CEO and President
Exempt
Nov 04, 2025
$0.00
28,750
$0.00
772,357
Foster Jonathan P.
Chief Financial Officer
Exempt
Nov 04, 2025
$0.00
20,625
$0.00
308,212
KLEMP WALTER V
CEO and President
In Kind
Nov 04, 2025
$3,479.50
7,001
$0.50
765,356
PICKER DONALD H
Chief Science Officer
Exempt
Nov 04, 2025
$0.00
8,750
$0.00
18,902
Foster Jonathan P.
Chief Financial Officer
Exempt
Nov 04, 2025
$2,496.43
5,023
$0.50
303,189
PICKER DONALD H
Chief Science Officer
In Kind
Nov 04, 2025
$1,059.11
2,131
$0.50
16,771