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SUPN · Supernus Pharmaceuticals, Inc.

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Market Cap
$2.56B
Shares
58.13M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 337
Total Value: $2,806,590,244
Total Shares: 60,403,575
Showing 1–100 of 340 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 337 13F filers · Δ vs Mar 31, 2026
Top Holder
15.5%
Sep 2023 → Jun 2026 · range 15.0% – 18.2%
+0.4 pts
Top 5
35.9%
Sep 2023 → Jun 2026 · range 34.5% – 46.8%
+1.4 pts
Top 10
52.4%
Sep 2023 → Jun 2026 · range 50.8% – 62.6%
+1.6 pts
HHI
455
Sep 2023 → Jun 2026 · range 430 – 642
Broadly held+25

Quarterly Activity

vs Mar 31, 2026
New
47
Increased
120
Decreased
114
Sold Out
40
Unchanged
56
Holder count: +7
Institutional value: -7.0%
Shares held: +3.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 340
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1356576 CUSIP 868459108 13F (30d) 229 filings 226 filers Visit website Investor relations