ROCKVILLE, MD
SUPERNUS PHARMACEUTICALS, INC.SUPN— Latest position per institution from SEC 13F filings
15
Institutional holders
57.28M
Total shares held
2.61B
Estimated value
2.86M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
10.39M
Value
278M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
8.80M
Value
454.73M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
6.05M
Value
300.61M
Filed
Dec 31, 2025
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
3.32M
Value
171.40M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.24M
Value
167.41M
Filed
Mar 31, 2026
MACQUARIE GROUP LTD
CIK 1418333
Shares
2.53M
Value
120.98M
Filed
Sep 30, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.47M
Value
127.53M
Filed
Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
2.31M
Value
119.24M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
2.29M
Value
118.27M
Filed
Mar 31, 2026
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
CIK 921739
Shares
2.04M
Value
105.30M
Filed
Mar 31, 2026
ARMISTICE CAPITAL, LLC
CIK 1601086
Shares
1.90M
Value
97.97M
Filed
Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
1.71M
Value
88.14M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.62M
Value
83.93M
Filed
Mar 31, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.53M
Value
78.98M
Filed
Mar 31, 2026
LOOMIS SAYLES & CO L P
CIK 312348
Shares
1.43M
Value
73.70M
Filed
Mar 31, 2026
STEPHENS INVESTMENT MANAGEMENT GROUP LLC
CIK 1314440
Shares
1.35M
Value
69.85M
Filed
Mar 31, 2026
POINT72 ASSET MANAGEMENT, L.P.
CIK 1603466
Shares
1.32M
Value
68.16M
Filed
Mar 31, 2026
GW&K INVESTMENT MANAGEMENT, LLC
CIK 1082917
Shares
1.06M
Value
54.54K
Filed
Mar 31, 2026
POLAR CAPITAL HOLDINGS PLC
CIK 1837309
Shares
1M
Value
31.59M
Filed
Jun 30, 2025
SOFINNOVA INVESTMENTS, INC.
CIK 1631134
Shares
954.31K
Value
49.33M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 10.39M | 278M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 8.80M | 454.73M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 6.05M | 300.61M | Dec 31, 2025 |
| 4 | MILLENNIUM MANAGEMENT LLC | 1273087 | 3.32M | 171.40M | Mar 31, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.24M | 167.41M | Mar 31, 2026 |
| 6 | MACQUARIE GROUP LTD | 1418333 | 2.53M | 120.98M | Sep 30, 2025 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.47M | 127.53M | Mar 31, 2026 |
| 8 | DIMENSIONAL FUND ADVISORS LP | 354204 | 2.31M | 119.24M | Mar 31, 2026 |
| 9 | STATE STREET CORP | 93751 | 2.29M | 118.27M | Mar 31, 2026 |
| 10 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 921739 | 2.04M | 105.30M | Mar 31, 2026 |
| 11 | ARMISTICE CAPITAL, LLC | 1601086 | 1.90M | 97.97M | Mar 31, 2026 |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 1.71M | 88.14M | Mar 31, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.62M | 83.93M | Mar 31, 2026 |
| 14 | CITADEL ADVISORS LLC | 1423053 | 1.53M | 78.98M | Mar 31, 2026 |
| 15 | LOOMIS SAYLES & CO L P | 312348 | 1.43M | 73.70M | Mar 31, 2026 |
| 16 | STEPHENS INVESTMENT MANAGEMENT GROUP LLC | 1314440 | 1.35M | 69.85M | Mar 31, 2026 |
| 17 | POINT72 ASSET MANAGEMENT, L.P. | 1603466 | 1.32M | 68.16M | Mar 31, 2026 |
| 18 | GW&K INVESTMENT MANAGEMENT, LLC | 1082917 | 1.06M | 54.54K | Mar 31, 2026 |
| 19 | POLAR CAPITAL HOLDINGS PLC | 1837309 | 1M | 31.59M | Jun 30, 2025 |
| 20 | SOFINNOVA INVESTMENTS, INC. | 1631134 | 954.31K | 49.33M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.