Supernus Pharmaceuticals, Inc.
Supernus Pharmaceuticals, Inc. (SUPN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SUPN · as of Sep 30, 2025
Ownership Breakdown
313
Institutional Holders
▲ 15 vs Q2
$2.76B
Total Inst. Value
▲ $881.22M vs Q2
58.04M
Shares Outstanding
freeFloat 93.80%
57.70M
13F Shares Held
▼ 1.81M 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
SUPN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. pharmaceutical preparations | 8.70M | 15.53% | 15.53% | $415.70B | Nov 12, 2025 | ▼ 669.5K |
VANGUARD GROUP INC pharmaceutical preparations | 6.04M | 10.79% | 10.79% | $288.88B | Nov 7, 2025 | ▼ 160.5K |
DIMENSIONAL FUND ADVISORS LP pharmaceutical preparations | 3.00M | 5.36% | 5.36% | $143.46B | Nov 12, 2025 | ▼ 19.3K |
ARMISTICE CAPITAL, LLC pharmaceutical preparations | 2.84M | 5.06% | 5.06% | $135.53B | Nov 17, 2025 | ▼ 1.98M |
MACQUARIE GROUP LTD pharmaceutical preparations | 2.53M | 4.52% | 4.52% | $120.98B | Nov 13, 2025 | ▼ 230.6K |
STATE STREET CORP pharmaceutical preparations | 2.19M | 3.90% | 3.90% | $104.54B | Nov 14, 2025 | ▼ 21.0K |
POINT72 ASSET MANAGEMENT, L.P. pharmaceutical preparations | 1.76M | 3.14% | 3.14% | $84.18B | Nov 14, 2025 | ▲ 1.25M |
RENAISSANCE TECHNOLOGIES LLC pharmaceutical preparations | 1.74M | 3.11% | 3.11% | $83.18B | Nov 13, 2025 | ▲ 85.3K |
CITADEL ADVISORS LLC pharmaceutical preparations | 1.42M | 2.53% | 2.53% | $67.71B | Nov 14, 2025 | ▲ 1.24M |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 1.41M | 2.52% | 2.52% | $67.39B | Nov 12, 2025 | ▲ 10.4K |
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
18
Increased
+5.63M shares2
New Positions
first time holders29
Decreased
−5.71M shares0
Sold Out
fully exitedNet shares change (top 50)
82.4K
+5.63M / −5.71M
Net new holders
-9
2 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
SUPN insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
62
Buy transactions
77
Sell transactions
0.81
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 |
|---|---|---|---|---|---|---|---|
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 17, 2026 | Sale | 27,710 | $49.95 | $1.38M | 39.3K | Form 4 ↗ |
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 16, 2026 | Sale | 34,114 | $50.18 | $1.71M | 32.9K | Form 4 ↗ |
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 18, 2026 | Sale | 6,838 | $49.55 | $338.8K | 17.5K | Form 4 ↗ |
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 17, 2026 | Sale | 22,290 | $50.73 | $1.13M | 17.0K | Form 4 ↗ |
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 16, 2026 | Sale | 15,886 | $50.49 | $802.1K | 17.0K | Form 4 ↗ |
Bhatt Padmanabh P. Sr. VP of IP, CSO | Mar 18, 2026 | Sale | 412 | $50.48 | $20.8K | 17.0K | 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
Supernus Pharmaceuticals, Inc. (SUPN) is primarily owned by institutional investors, who hold approximately 99.4% of total shares outstanding. Company insiders own approximately 6.20%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Supernus Pharmaceuticals, Inc. is BLACKROCK, INC., holding approximately 8.70 million shares — equal to 15.53% of outstanding shares — as of September 30, 2025.
A total of 313 institutional investors currently hold SUPN stock, with a combined institutional value of approximately $2.76 billion as of the most recent 13F filing period.
Frequently asked questions
SUPN ownershipSupernus Pharmaceuticals, Inc. (SUPN) is primarily owned by institutional investors, who hold approximately 99.4% of shares. The largest shareholder is BLACKROCK, INC. with a 15.53% stake. Company insiders hold 6.20%. Data sourced from SEC Form 13F as of September 30, 2025.