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MBRX · Moleculin Biotech, Inc. · Shareholders & Ownership

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$6.50 +0.61 (+10.36%) At close · Oct 23
Market Cap
$6.33M
Shares
973,869
Volume · Oct 23 27.74K Avg daily vol (4 sessions) 65.18K

Every disclosed holder of MBRX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns MBRX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 9,289 0.95%
Insiders (Forms 3, 4, 5) 65,122 6.69%
13D/G-only blocks 145,038 14.89%
Remaining 754,420 77.47%
Registered funds (N-PORT, not summed) 2,936 0.30%

Shares outstanding: 973,869, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MBRX

# Holder Shares
1
CVI Investments, Inc.
13G CIK 1649553 · Unknown · Jul 31, 2026
Rule 13d-1(c), passive investor
93,169
2
Mitchell P. Kopin
13G CIK 1646799 · Unknown · Jul 31, 2026
Rule 13d-1(c), passive investor
48,696
3
KLEMP WALTER V
Insider CIK 938419 · Oct 15, 2026
Director, CEO and President, issuer-wide
36,159
3.1
KLEMP WALTER V
13D CIK 938419 · Unknown · Aug 19, 2026
Item 4 purpose: Passive investment, Other
not summed
103,538
4
Foster Jonathan P.
Insider CIK 1545414 · Oct 15, 2026
EVP & CFO, issuer-wide
20,259
4.1
Foster Jonathan P.
13D CIK 1545414 · Unknown · Aug 19, 2026
Item 4 purpose: Passive investment, Other
not summed
64,410
5
PICKER DONALD H
Insider CIK 1266800 · Aug 3, 2026
CSO, issuer-wide
8,704
6
ARMISTICE CAPITAL, LLC
13G CIK 1601086 · Registered investment adviser · Jun 30, 2025
Rule 13d-1(b), qualified institution
3,173
7
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,363
8
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,111
9
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,494
10
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,414
11
XTX Topco Ltd
13F CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,147
12
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
1,095
13
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,002
14
Rockefeller Capital Management L.P.
13F CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
750
15
Fidelity Nasdaq Composite Index Fund
Fund S000055366 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
224
16
Tower Research Capital LLC (TRC)
13F CIK 1533421 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
176
17
Fidelity Series Total Market Index Fund
Fund S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
157
18
CITIGROUP INC
13F CIK 831001 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
134
19
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
46
20
BARCLAYS PLC
13F CIK 312069 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
31
21
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
25
22
EFG International AG
13F CIK 2109868 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
22
23
JONES FINANCIAL COMPANIES LLLP
13F CIK 815917 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
18
24
WELLS FARGO & COMPANY/MN
13F CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
10
25
NFSG Corp
13F CIK 1879757 · Registered investment adviser · Sep 30, 2026
6

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Key facts CIK 1659617 CUSIP 60855D408 13F (30d) 1 filings 1 filers Visit website Investor relations