New Positions
0 managers initiated
Top five by reported value
No new institutional positions this quarter.
Mustang Bio Inc NASDAQ NMS - GLOBAL MARKET:MBIO
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-03-31 · prior 2024-12-31.
0 new0 added3 reduced27 exited
Total Institutional Holders
2
as of 2025-03-31
Top Holder
MORGAN STANLEY
$2.1K
Largest QoQ Increase
—
Largest QoQ Decrease
ARMISTICE CAPITAL, LLC
-3,606,543 sh
Reduced(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MORGAN STANLEY | 11,781 | -8,893 | $2.1K | -$2.1K | -43.0% |
| GROUP ONE TRADING, L.P. | 56 | 0 | $10 | $0 | 0.0% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | 0 | $0 | $0 | — |
Sold Out(27)
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-03-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| MORGAN STANLEY | 11,781 | $2.1K | -8,893 | -43.0% |
| GROUP ONE TRADING, L.P. | 56 | $10 | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
27 managers exited
Top five by prior-quarter value
- ARMISTICE CAPITAL, LLC$638.4K
- GEODE CAPITAL MANAGEMENT, LLC$50.3K
- HB Wealth Management, LLC$19.9K
- UBS Group AG$17.8K
- RENAISSANCE TECHNOLOGIES LLC$15.5K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for MBIO against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.