MBIO
Mustang Bio, Inc.Company with tickers: MBIO
CIK
1680048
CUSIP
62818Q302
Shares Outstanding
6,732,120
13F Activity (30d)
20 filings
20 filers
Holders: 22
Total Value: $369,834
Total Shares: 508,032
Institutional Ownership Trend
Holder Concentration
Across 22 13F filers · Δ vs Dec 31, 2025Top Holder
34.7%
+14.5 pts
Top 5
86.4%
+11.7 pts
Top 10
99.9%
+2.8 pts
HHI
2,016
Moderately concentrated
+727
Quarterly Activity
vs Dec 31, 2025
New
4
Increased
5
Decreased
4
Sold Out
7
Unchanged
9
Holder count:
-3
Institutional value:
-31.7%
Shares held:
-8.0%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large Kestra Advisory Services, LLC | +65,000 | 176,042 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +60,505 | 92,790 | |
| Small CFO4Life Group, LLC | +7,500 | 20,461 | |
| Mega UBS Group AG | +3,615 | 3,659 | |
| Mid Tower Research Capital LLC (TRC) | +959 | 1,895 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | −31,565 | 53,200 | |
| Mega TWO SIGMA INVESTMENTS, LP | −23,280 | 16,754 | |
| Mid SBI Securities Co., Ltd. | −1,500 | 509 | |
| Mega MORGAN STANLEY | −35 | 118 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD FIDUCIARY TRUST CO | 32,120 | $23,383 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 25,704 | $18,712 | |
| Large OSAIC HOLDINGS, INC. | 2 | $1 | |
| Mega CITIGROUP INC | 1 | $0 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid DRW Securities, LLC | 73,936 | $72,531 | |
| Mega VANGUARD GROUP INC | 57,863 | $56,762 | |
| Mid XTX Topco Ltd | 24,073 | $23,615 | |
| Mega JANE STREET GROUP, LLC | 14,126 | $13,857 | |
| Mid GSA CAPITAL PARTNERS LLP | 12,834 | $12,590 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Large Kestra Advisory Services, LLC | $128,158 | 34.65% | 176,042 | Shares | Sole | 2026-04-30 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $67,550 | 18.26% | 92,790 | Shares | Defined | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $61,693 | 16.68% | 84,745 | Shares | Sole | 2026-05-13 | ||||
| Mega CITADEL ADVISORS LLC | $38,729 | 10.47% | 53,200 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $23,383 | 6.32% | 32,120 | Shares | Defined | 2026-05-08 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $18,712 | 5.06% | 25,704 | Shares | Defined | 2026-05-15 | ||||
| Small CFO4Life Group, LLC | $14,895 | 4.03% | 20,461 | Shares | Sole | 2026-05-11 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $12,196 | 3.30% | 16,754 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $2,663 | 0.72% | 3,659 | Shares | Defined | 2026-05-05 | ||||
| Mid Tower Research Capital LLC (TRC) | $1,379 | 0.37% | 1,895 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $370 | 0.10% | 509 | Shares | Defined | 2026-04-28 | ||||
| Mega MORGAN STANLEY | $85 | 0.02% | 118 | Shares | Defined | 2026-05-15 | ||||
| Mid Cullen/Frost Bankers, Inc. Bank | $9 | 0.00% | 13 | Shares | Defined | 2026-05-05 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $4 | 0.00% | 6 | Shares | Defined | 2026-05-12 | ||||
| Mid MAI Capital Management | $2 | 0.00% | 3 | Shares | Sole | 2026-05-15 | ||||
| Small NBC SECURITIES, INC. Broker-Dealer | $2 | 0.00% | 3 | Shares | Sole | 2026-04-14 | ||||
| Large DANSKE BANK A/S Bank | $1 | 0.00% | 2 | Shares | Sole | 2026-05-12 | ||||
| Mega JPMORGAN CHASE & CO | $1 | 0.00% | 2 | Shares | Defined | 2026-05-13 | ||||
| Large OSAIC HOLDINGS, INC. | $1 | 0.00% | 2 | Shares | Defined | 2026-05-15 | ||||
| Large CWM, LLC | $1 | 0.00% | 2 | Shares | Sole | 2026-05-14 | ||||
| Mid GROUP ONE TRADING LLC | $0 | 0.00% | 1 | Shares | Sole | 2026-05-13 | ||||
| Mega CITIGROUP INC | $0 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
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