ROCKVILLE, MD
SUPERNUS PHARMACEUTICALS, INC.SUPN— Latest position per institution from SEC 13F filings
15
Institutional holders
61.38M
Total shares held
2.50B
Estimated value
3.07M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
10.39M
Value
278M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
9.35M
Value
434.87M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
6.05M
Value
300.61M
Filed
Dec 31, 2025
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
3.85M
Value
179.21M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.31M
Value
153.74M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
2.85M
Value
61.21K
Filed
Jun 30, 2026
ARMISTICE CAPITAL, LLC
CIK 1601086
Shares
2.65M
Value
123.07M
Filed
Jun 30, 2026
MACQUARIE GROUP LTD
CIK 1418333
Shares
2.53M
Value
120.98M
Filed
Sep 30, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.52M
Value
117.05M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
2.46M
Value
114.41M
Filed
Jun 30, 2026
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
CIK 921739
Shares
2.38M
Value
110.62M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
2.08M
Value
96.65M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.57M
Value
73.04M
Filed
Jun 30, 2026
STEPHENS INVESTMENT MANAGEMENT GROUP LLC
CIK 1314440
Shares
1.49M
Value
69.11M
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
1.48M
Value
68.75M
Filed
Jun 30, 2026
LOOMIS SAYLES & CO L P
CIK 312348
Shares
1.48M
Value
68.61M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.42M
Value
66.02M
Filed
Jun 30, 2026
POINT72 ASSET MANAGEMENT, L.P.
CIK 1603466
Shares
1.32M
Value
68.16M
Filed
Mar 31, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.18M
Value
55.09M
Filed
Jun 30, 2026
GW&K INVESTMENT MANAGEMENT, LLC
CIK 1082917
Shares
1.04M
Value
48.24K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 10.39M | 278M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 9.35M | 434.87M | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 6.05M | 300.61M | Dec 31, 2025 |
| 4 | MILLENNIUM MANAGEMENT LLC | 1273087 | 3.85M | 179.21M | Jun 30, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.31M | 153.74M | Jun 30, 2026 |
| 6 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 2.85M | 61.21K | Jun 30, 2026 |
| 7 | ARMISTICE CAPITAL, LLC | 1601086 | 2.65M | 123.07M | Jun 30, 2026 |
| 8 | MACQUARIE GROUP LTD | 1418333 | 2.53M | 120.98M | Sep 30, 2025 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.52M | 117.05M | Jun 30, 2026 |
| 10 | STATE STREET CORP | 93751 | 2.46M | 114.41M | Jun 30, 2026 |
| 11 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 921739 | 2.38M | 110.62M | Jun 30, 2026 |
| 12 | DIMENSIONAL FUND ADVISORS LP | 354204 | 2.08M | 96.65M | Jun 30, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.57M | 73.04M | Jun 30, 2026 |
| 14 | STEPHENS INVESTMENT MANAGEMENT GROUP LLC | 1314440 | 1.49M | 69.11M | Jun 30, 2026 |
| 15 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 1.48M | 68.75M | Jun 30, 2026 |
| 16 | LOOMIS SAYLES & CO L P | 312348 | 1.48M | 68.61M | Jun 30, 2026 |
| 17 | CITADEL ADVISORS LLC | 1423053 | 1.42M | 66.02M | Jun 30, 2026 |
| 18 | POINT72 ASSET MANAGEMENT, L.P. | 1603466 | 1.32M | 68.16M | Mar 31, 2026 |
| 19 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.18M | 55.09M | Jun 30, 2026 |
| 20 | GW&K INVESTMENT MANAGEMENT, LLC | 1082917 | 1.04M | 48.24K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.