SUPN in the 13F filings
Supernus Pharmaceuticals Inc · CUSIP 868459108
- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 31
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 8 listed it in both
- Shares listed
- 11,388,541
- combined, among listed positions
- Reported value
- $589m
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 17 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,164,763.
Managers listing SUPN in Q1 2026
31 of 31 holders
Largest increases and reductions, by shares
Increases
- Citadel Advisors LLCexisting position · 1,493,446 shares now+1,040,487
- Millennium Management LLCexisting position · 3,315,973 shares now+675,907
- Woodline Partners LPnew position · 448,996 shares now+448,996
- Freestone Grove Partners LPexisting position · 641,319 shares now+445,001
- Two Sigma Investments LPexisting position · 271,228 shares now+150,562
Reductions
- Point72 Asset Management LPexisting position · 1,318,555 shares now-946,245
- Acadian Asset Management LLCexisting position · 18,131 shares now-288,534
- Arrowstreet Capital LPexisting position · 7,595 shares now-176,093
- Brevan Howard Capital Management LPexisting position · 11,695 shares now-101,499
- D. E. Shaw & Co.existing position · 622,450 shares now-85,532
New positions and exits
New (5)
Exited (3)
- Caxton Associates LLPwas $5.6m
- Tudor Investment Corpwas $1.7m
- Verition Fund Management LLCwas $621k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2014 | 1 | $1.1m | n.a. | n.a. |
| Q1 2015 | 1 | $1.3m | n.a. | n.a. |
| Q2 2015 | 2 | $10m | n.a. | n.a. |
| Q3 2015 | 1 | $10m | n.a. | n.a. |
| Q4 2015 | 2 | $23m | n.a. | n.a. |
| Q1 2016 | 3 | $38m | n.a. | n.a. |
| Q2 2016 | 2 | $33m | n.a. | n.a. |
| Q3 2016 | 1 | $43m | n.a. | n.a. |
| Q4 2016 | 1 | $42m | n.a. | n.a. |
| Q1 2017 | 1 | $51m | n.a. | n.a. |
| Q2 2017 | 2 | $68m | n.a. | n.a. |
| Q3 2017 | 3 | $53m | n.a. | n.a. |
| Q4 2017 | 1 | $51m | n.a. | n.a. |
| Q1 2018 | 5 | $70m | n.a. | n.a. |
| Q2 2018 | 3 | $122m | n.a. | n.a. |
| Q3 2018 | 2 | $45m | n.a. | n.a. |
| Q4 2018 | 5 | $50m | n.a. | n.a. |
| Q1 2019 | 5 | $61m | n.a. | n.a. |
| Q2 2019 | 6 | $54m | n.a. | n.a. |
| Q3 2019 | 3 | $46m | n.a. | n.a. |
| Q4 2019 | 6 | $28m | n.a. | n.a. |
| Q1 2020 | 7 | $29m | n.a. | n.a. |
| Q2 2020 | 4 | $33m | n.a. | n.a. |
| Q3 2020 | 3 | $49m | n.a. | n.a. |
| Q4 2020 | 1 | $47m | n.a. | n.a. |
| Q1 2021 | 1 | $46m | n.a. | n.a. |
| Q2 2021 | 2 | $48m | n.a. | n.a. |
| Q3 2021 | 3 | $40m | n.a. | n.a. |
| Q4 2021 | 2 | $36m | n.a. | n.a. |
| Q1 2022 | 4 | $62m | n.a. | n.a. |
| Q2 2022 | 4 | $62m | n.a. | n.a. |
| Q3 2022 | 5 | $75m | n.a. | n.a. |
| Q4 2022 | 5 | $53m | n.a. | n.a. |
| Q1 2023 | 3 | $55m | n.a. | n.a. |
| Q2 2023 | 2 | $45m | n.a. | n.a. |
| Q3 2023 | 1 | $40m | n.a. | n.a. |
| Q4 2023 | 1 | $40m | 0 | 1 |
| Q1 2024 | 3 | $91m | 2 | 1 |
| Q2 2024 | 1 | $45m | 1 | 2 |
| Q3 2024 | 3 | $61m | 3 | 0 |
| Q4 2024 | 3 | $75m | 2 | 1 |
| Q1 2025 | 3 | $54m | 1 | 2 |
| Q2 2025 | 3 | $80m | 3 | 0 |
| Q3 2025 | 6 | $244m | 5 | 1 |
| Q4 2025 | 9 | $381m | 17 | 14 |
| Q1 2026 | 8 | $399m | 17 | 15 |
| Q2 2026 | 6 | $299m | 15 | 16 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
SUPN and LLY →SUPN and JNJ →SUPN and VRTX →Choose a stock to compare with SUPN →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own SUPN, latest filings →Back to the 13F Explorer →