// company-profile
Moleculin Biotech, Inc.
MBRXExchangeNasdaqSectorPharmaceutical PreparationsInc.DEFilings51Insiders8
// api This Moleculin Biotech, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for MBRX in the last 90 days.
Institutional Ownership
Top 13F-HR holders of Moleculin Biotech, Inc. as of 2026-03-31
Total reported AUM
$302,979
QoQ change
-3.4%
Reporting period
2026-03-31
#1
SABBY MANAGEMENT, LLC
CIK 1535610
$171,798
75K shares
#2
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
$59,627
26K shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$31,760
14K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 12, 2025 | PICKER DONALD H | MBRX | Award | 200,000 | — | — |
| Nov 12, 2025 | KLEMP WALTER V | MBRX | Award | 750,000 | — | — |
| Nov 12, 2025 | KLEMP WALTER V | MBRX | Award | 830,000 | — | — |
| Nov 12, 2025 | PICKER DONALD H | MBRX | Award | 200,000 | — | — |
| Nov 12, 2025 | Cermak Elizabeth | MBRX | Award | 150,000 | — | — |
45 more transactions hidden
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