Supernus Pharmaceuticals, Inc.
US ˙ NasdaqGM ˙ US8684591089

SecuritySUPN / Supernus Pharmaceuticals, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership778 shares
Latest Disclosed Value $ 40,215
Signaturefd, Llc reports 15.60% increase in ownership of SUPN / Supernus Pharmaceuticals, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 778 shares of Supernus Pharmaceuticals, Inc. (US:SUPN) valued at $40,215 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 673 shares of Supernus Pharmaceuticals, Inc.. This represents a change in shares of 15.60% during the quarter. The current value of the position is $34,816 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-07 2026-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 778 105 15.60 40 21.21 0.0006
2026-01-20 2025-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 673 114 20.39 33 26.92 0.0005
2025-10-21 2025-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 559 28 5.27 27 62.50 0.0004
2025-07-16 2025-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 531 8 1.53 17 -5.88 0.0003
2025-05-02 2025-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 523 -38 -6.77 17 -15.00 0.0003
2025-02-10 2024-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 561 0 0.00 20 17.65 0.0004
2024-10-21 2024-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 561 0 0.00 17 13.33 0.0003
2024-07-29 2024-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 561 -96 -14.61 15 -31.82 0.0003
2024-05-03 2024-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 657 -7 -1.05 22 15.79 0.0005
2024-02-01 2023-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 664 221 49.89 19 58.33 0.0004
2023-11-03 2023-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 443 22 5.23 12 0.00 0.0003
2023-08-01 2023-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 421 -32 -7.06 13 -25.00 0.0003
2023-04-28 2023-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 453 -2 -0.44 16 0.00 0.0004
2023-01-30 2022-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 455 0 0.00 16 6.67 0.0005
2022-11-08 2022-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 455 160 54.24 15 66.67 0.0005
2022-08-10 2022-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 295 4 1.37 9 0.00 0.0003
2022-05-02 2022-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 0 0.00 9 12.50 0.0003
2022-01-25 2021-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 0 0.00 8 0.00 0.0002
2021-10-28 2021-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 0 0.00 8 -11.11 0.0003
2021-07-26 2021-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 0 0.00 9 12.50 0.0004
2021-04-30 2021-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 0 0.00 8 14.29 0.0004
2021-02-11 2020-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 291 -34 -10.46 7 0.00 0.0003
2020-11-03 2020-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 325 198 155.91 7 133.33 0.0004
2020-07-30 2020-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 127 127 3 0.0002
2020-04-23 2020-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 0 -19 -100.00 0 0.0000
2020-02-05 2019-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 0 -100.00
2019-10-16 2019-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2019-07-31 2019-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2019-05-09 2019-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2019-02-13 2018-12-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2018-11-14 2018-09-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2018-08-14 2018-06-30 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 0 0.00 1 0.00 0.0001
2018-05-08 2018-03-31 13F SUPERNUS PHARMACEUTICALS COM 868459108 19 19 1 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.