WALTHAM, MA
MUSTANG BIO, INC.MBIO— Latest position per institution from SEC 13F filings
15
Institutional holders
770.26K
Total shares held
597.51K
Estimated value
38.51K
Avg. position size
KESTRA ADVISORY SERVICES, LLC
CIK 1830819
Shares
196.99K
Value
138.29K
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
84.75K
Value
59.49K
Filed
Jun 30, 2026
DRW SECURITIES, LLC
CIK 1481986
Shares
73.94K
Value
72.53K
Filed
Dec 31, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
59.46K
Value
41.74K
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
57.86K
Value
56.76K
Filed
Dec 31, 2025
ANSON FUNDS MANAGEMENT LP
CIK 1491072
Shares
45.72K
Value
57.15K
Filed
Mar 31, 2025
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
42.24K
Value
29.65K
Filed
Jun 30, 2026
CFO4LIFE GROUP, LLC
CIK 1706351
Shares
33.51K
Value
23.52K
Filed
Jun 30, 2026
VANGUARD FIDUCIARY TRUST CO
CIK 933478
Shares
32.12K
Value
22.55K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
25.70K
Value
18.04K
Filed
Jun 30, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
16.75K
Value
12.20K
Filed
Mar 31, 2026
XTX TOPCO LTD
CIK 1828301
Shares
14.65K
Value
10.28K
Filed
Jun 30, 2026
VIRTU FINANCIAL LLC
CIK 1533964
Shares
14.36K
Value
10.00
Filed
Jun 30, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
14.13K
Value
13.86K
Filed
Dec 31, 2025
TWO SIGMA SECURITIES, LLC
CIK 1450144
Shares
13.74K
Value
9.65K
Filed
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
13.66K
Value
9.59K
Filed
Jun 30, 2026
GSA CAPITAL PARTNERS LLP
CIK 1362033
Shares
12.83K
Value
13.00
Filed
Dec 31, 2025
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
11.80K
Value
17.94K
Filed
Sep 30, 2025
UBS GROUP AG
CIK 1610520
Shares
4.16K
Value
2.92K
Filed
Jun 30, 2026
TOWER RESEARCH CAPITAL LLC (TRC)
CIK 1533421
Shares
1.90K
Value
1.33K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | KESTRA ADVISORY SERVICES, LLC | 1830819 | 196.99K | 138.29K | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 84.75K | 59.49K | Jun 30, 2026 |
| 3 | DRW SECURITIES, LLC | 1481986 | 73.94K | 72.53K | Dec 31, 2025 |
| 4 | CITADEL ADVISORS LLC | 1423053 | 59.46K | 41.74K | Jun 30, 2026 |
| 5 | VANGUARD GROUP INC | 102909 | 57.86K | 56.76K | Dec 31, 2025 |
| 6 | ANSON FUNDS MANAGEMENT LP | 1491072 | 45.72K | 57.15K | Mar 31, 2025 |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 42.24K | 29.65K | Jun 30, 2026 |
| 8 | CFO4LIFE GROUP, LLC | 1706351 | 33.51K | 23.52K | Jun 30, 2026 |
| 9 | VANGUARD FIDUCIARY TRUST CO | 933478 | 32.12K | 22.55K | Jun 30, 2026 |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 25.70K | 18.04K | Jun 30, 2026 |
| 11 | TWO SIGMA INVESTMENTS, LP | 1179392 | 16.75K | 12.20K | Mar 31, 2026 |
| 12 | XTX TOPCO LTD | 1828301 | 14.65K | 10.28K | Jun 30, 2026 |
| 13 | VIRTU FINANCIAL LLC | 1533964 | 14.36K | 10.00 | Jun 30, 2026 |
| 14 | JANE STREET GROUP, LLC | 1595888 | 14.13K | 13.86K | Dec 31, 2025 |
| 15 | TWO SIGMA SECURITIES, LLC | 1450144 | 13.74K | 9.65K | Jun 30, 2026 |
| 16 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 13.66K | 9.59K | Jun 30, 2026 |
| 17 | GSA CAPITAL PARTNERS LLP | 1362033 | 12.83K | 13.00 | Dec 31, 2025 |
| 18 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 11.80K | 17.94K | Sep 30, 2025 |
| 19 | UBS GROUP AG | 1610520 | 4.16K | 2.92K | Jun 30, 2026 |
| 20 | TOWER RESEARCH CAPITAL LLC (TRC) | 1533421 | 1.90K | 1.33K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.