SUPNSupernus Pharmaceuticals, Inc.

$42.68-7.3% 1Y

Who owns SUPN

329 institutions reported holding SUPN for 2026Q2, together 104% of the company, more than the 322 a quarter earlier.

329

Institutions reporting a position · as of 2026Q2 · up from 322 the quarter before

Shares held by institutions
60.1M

Shares held by institutions · 104% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.79B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
43%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
48
Positions exited
41
Added to
108
Reduced
102
Top 10 holdersof the company
58%
Shares sold shortsettled Sep 15, 2026
5.0M
Short interestof shares outstanding
8.7%
Days to coverat the average daily volume
8.7
Change in the short positionsince the Aug 31, 2026 count
+6.8%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q232960.1M$2.79B
2026Q132258.2M$3.00B
2025Q432857.1M$2.84B
2025Q330657.6M$2.75B
2025Q228959.5M$1.87B
2025Q129159.2M$1.94B
2024Q429059.5M$2.15B
2024Q327059.9M$1.87B
2024Q224358.4M$1.56B
2024Q124956.7M$1.93B
2023Q424457.1M$1.65B
2023Q323657.0M$1.57B
2023Q224757.3M$1.72B
2023Q125455.7M$2.00B
2022Q426255.8M$1.99B
2022Q324255.6M$1.88B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.9.4M16%$435M
VANGUARD GROUP INC6.3M11%$293M
MILLENNIUM MANAGEMENT LLC3.9M6.7%$179M
ARMISTICE CAPITAL, LLC2.6M4.6%$123M
STATE STREET CORP2.5M4.3%$114M
NOMURA HOLDINGS INC2.4M4.1%$111M
DIMENSIONAL FUND ADVISORS LP2.1M3.6%$97M
GEODE CAPITAL MANAGEMENT LLC1.6M2.7%$73M
Stephens Investment Management Group LLC1.5M2.6%$69M
RENAISSANCE TECHNOLOGIES LLC1.5M2.6%$69M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20265.0M8.7%8.7
Aug 31, 20264.7M8.1%8.3
Aug 14, 20264.1M7.2%2.8
Jul 31, 20264.8M8.4%9.5
Jul 15, 20264.9M8.4%5.1
Jun 30, 20267.1M12%7.0
Jun 15, 20266.1M11%10.1
May 29, 20265.4M9.4%9.5
May 15, 20264.7M8.2%5.3
Apr 30, 20264.7M8.2%8.5
Apr 15, 20264.7M8.2%9.3
Mar 31, 20264.5M7.9%7.5

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…