Fortress Biotech, Inc.
Fortress Biotech, Inc. (FBIO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · FBIO · as of Sep 30, 2025
Ownership Breakdown
63
Institutional Holders
▲ 11 vs Q2
$16.46M
Total Inst. Value
▲ $7.24M vs Q2
33.22M
Shares Outstanding
freeFloat 67.38%
4.47M
13F Shares Held
▼ 493,842 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
FBIO largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC pharmaceutical preparations | 950.3K | 3.54% | 3.54% | $3.51B | Nov 7, 2025 | ▲ 97.4K |
SUMMIT FINANCIAL, LLC pharmaceutical preparations | 444.7K | 1.65% | 1.65% | $1.65B | Nov 14, 2025 | ▼ 571.1K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP pharmaceutical preparations | 356.2K | 1.33% | 1.33% | $1.32B | Nov 14, 2025 | ▲ 310.5K |
SHIKIAR ASSET MANAGEMENT INC pharmaceutical preparations | 278.5K | 1.04% | 1.04% | $1.03B | Oct 14, 2025 | — held |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 244.4K | 90.93% | 90.93% | $903.53M | Nov 12, 2025 | ▲ 9.6K |
NORTHERN TRUST CORP pharmaceutical preparations | 220.6K | 82.08% | 82.08% | $815.25M | Nov 14, 2025 | ▲ 127.4K |
SCULPTOR CAPITAL LP pharmaceutical preparations | 208.9K | 77.72% | 77.72% | $771.89M | Nov 14, 2025 | NEW |
KESTRA ADVISORY SERVICES, LLC pharmaceutical preparations | 196.9K | 73.24% | 73.24% | $727.45M | Nov 14, 2025 | ▼ 135.1K |
BLACKROCK, INC. pharmaceutical preparations | 189.8K | 70.61% | 70.61% | $701.29M | Nov 12, 2025 | ▲ 57.7K |
CITADEL ADVISORS LLC pharmaceutical preparations | 165.5K | 61.57% | 61.57% | $611.52M | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
21
Increased
+1.01M shares13
New Positions
first time holders11
Decreased
−1.20M shares0
Sold Out
fully exitedNet shares change (top 50)
185.6K
+1.01M / −1.20M
Net new holders
+23
13 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
FBIO insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Jin David Chief Financial Officer | Apr 1, 2026 | Award | 2,967 | $2.18 | $6.5K | 1.25M | Form 4 ↗ |
ROSENWALD LINDSAY A MD PRESIDENT, CEO & CHAIRMAN | Mar 18, 2026 | Award | 475,424 | — | — | 4.59M | Form 4 ↗ |
WEISS MICHAEL S Executive Vice Chairman | Mar 18, 2026 | Award | 475,424 | — | — | 2.28M | Form 4 ↗ |
Klein Dov director | Jan 1, 2026 | Award | 27,322 | — | — | 130.1K | Form 4 ↗ |
Harvey Jimmie director | Jan 1, 2026 | Award | 27,322 | — | — | 146.7K | Form 4 ↗ |
Lorenz Kevin director | Jan 1, 2026 | Award | 27,322 | — | — | 101.0K | Form 4 ↗ |
Hoenlein Malcolm director | Jan 1, 2026 | Award | 27,322 | — | — | 115.7K | Form 4 ↗ |
LOBELL J JAY director | Jan 1, 2026 | Award | 27,322 | — | — | 192.4K | Form 4 ↗ |
Jin David Chief Financial Officer | Oct 1, 2025 | Award | 2,711 | $1.31 | $3.5K | 1.25M | Form 4 ↗ |
Jin David Chief Financial Officer | Apr 1, 2025 | Award | 5,000 | $1.22 | $6.1K | 1.25M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Fortress Biotech, Inc. (FBIO) is primarily owned by institutional investors, who hold approximately 13.4% of total shares outstanding. Company insiders own approximately 32.62%, while retail and public investors account for the remaining 53.94%.
The largest institutional shareholder of Fortress Biotech, Inc. is VANGUARD GROUP INC, holding approximately 950,327 shares — equal to 3.54% of outstanding shares — as of September 30, 2025.
A total of 63 institutional investors currently hold FBIO stock, with a combined institutional value of approximately $16,462,217 as of the most recent 13F filing period.
Frequently asked questions
FBIO ownershipFortress Biotech, Inc. (FBIO) is primarily owned by institutional investors, who hold approximately 13.4% of shares. The largest shareholder is VANGUARD GROUP INC with a 3.54% stake. Company insiders hold 32.62%. Data sourced from SEC Form 13F as of September 30, 2025.