SUPERNUS PHARMACEUTICALS INC (SUPN) Institutional Shareholders
SUPERNUS PHARMACEUTICALS INC (SUPN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.75B in SUPN holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SUPN tracked by InsiderSet, reporting ownership valued at approximately $434.87M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $451.33M, representing an estimated gain of +3.78% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed SUPN value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Millennium Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in SUPERNUS PHARMACEUTICALS INC (SUPN).
This page ranks the largest institutional SUPN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
329
Total Reported Value
$2.75B
Largest Holder
Blackrock, Inc.
Largest Position
$434.87M
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
48
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 9,350,046 | $434,870,642 | $451,326,720 | +$16,456,078 | +3.78% | |
| Millennium Management Llc | 0.12% | 3,853,212 | $179,212,890 | $185,994,543 | +$6,781,653 | +3.78% | |
| Vanguard Portfolio Management Llc | 0.01% | 3,305,429 | $153,735,503 | $159,553,058 | +$5,817,555 | +3.78% | |
| Armistice Capital, Llc | 3.40% | 2,646,201 | $123,074,809 | $127,732,122 | +$4,657,313 | +3.78% | |
| Vanguard Capital Management Llc | 0.00% | 2,516,721 | $117,052,694 | $121,482,123 | +$4,429,429 | +3.78% | |
| State Street Corp | 0.00% | 2,459,828 | $114,406,600 | $118,735,898 | +$4,329,298 | +3.78% | |
| Nomura Asset Management International Inc. | 0.17% | 2,378,329 | $110,616,000 | $114,801,941 | +$4,185,941 | +3.78% | |
| Dimensional Fund Advisors Lp | 0.02% | 2,078,090 | $96,653,797 | $100,309,404 | +$3,655,607 | +3.78% | |
| Geode Capital Management, Llc | 0.00% | 1,570,088 | $73,038,959 | $75,788,148 | +$2,749,189 | +3.76% | |
| Stephens Investment Management Group Llc | 0.74% | 1,485,821 | $69,105,535 | $71,720,580 | +$2,615,045 | +3.78% | |
| Renaissance Technologies LLC | Jim Simons | 0.09% | 1,478,180 | $68,750,152 | $71,351,749 | +$2,601,597 | +3.78% |
| Loomis Sayles & Co L P | 0.09% | 1,475,192 | $68,611,181 | $71,207,518 | +$2,596,337 | +3.78% | |
| Citadel Advisors Llc | 0.04% | 1,373,982 | $63,903,903 | $66,322,111 | +$2,418,208 | +3.78% | |
| Two Sigma Investments, Lp | 0.04% | 1,184,378 | $55,085,421 | $57,169,926 | +$2,084,505 | +3.78% | |
| Sofinnova Investments, Inc. | 2.57% | 1,036,328 | $48,199,615 | $50,023,553 | +$1,823,938 | +3.78% | |
| Qube Research & Technologies Ltd | 0.05% | 922,166 | $42,889,941 | $44,512,953 | +$1,623,012 | +3.78% | |
| Morgan Stanley | 0.00% | 876,841 | $40,781,921 | $42,325,115 | +$1,543,194 | +3.78% | |
| Goldman Sachs Group Inc | 0.00% | 819,432 | $38,111,783 | $39,553,983 | +$1,442,200 | +3.78% | |
| D. E. Shaw & Co., Inc. | 0.02% | 767,668 | $35,704,239 | $37,055,334 | +$1,351,095 | +3.78% | |
| Northern Trust Corp | 0.00% | 733,374 | $34,109,224 | $35,399,963 | +$1,290,739 | +3.78% | |
| Ashford Capital Management Inc | 4.12% | 645,381 | $33,359,744 | $31,152,541 | -$2,207,203 | -6.62% | |
| Woodline Partners Lp | 0.10% | 708,276 | $32,941,917 | $34,188,483 | +$1,246,566 | +3.78% | |
| Charles Schwab Investment Management Inc | 0.00% | 703,552 | $32,722,204 | $33,960,455 | +$1,238,251 | +3.78% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 703,552 | $32,722,204 | $33,960,455 | +$1,238,251 | +3.78% | |
| Bank Of America Corp | 0.00% | 621,102 | $28,887,473 | $29,980,594 | +$1,093,121 | +3.78% | |
| Soleus Capital Management, L.P. | 0.83% | 520,000 | $24,185,200 | $25,100,400 | +$915,200 | +3.78% | |
| Rice Hall James & Associates, Llc | 1.11% | 490,221 | $22,800,179 | $23,662,968 | +$862,789 | +3.78% | |
| Systematic Financial Management Lp | 0.44% | 474,131 | $22,051,888 | $22,886,303 | +$834,415 | +3.78% | |
| Aberdeen Group Plc | 0.03% | 453,206 | $21,078,611 | $21,876,254 | +$797,643 | +3.78% | |
| Pictet Asset Management Holding Sa | 0.02% | 432,478 | $20,237,384 | $20,875,713 | +$638,329 | +3.15% | |
| Invesco Ltd. | 0.00% | 395,101 | $18,376,149 | $19,071,525 | +$695,376 | +3.78% | |
| Victory Capital Management Inc | 0.01% | 391,075 | $18,188,898 | $18,877,190 | +$688,292 | +3.78% | |
| Vanguard Fiduciary Trust Co | 0.00% | 384,828 | $17,898,350 | $18,575,648 | +$677,298 | +3.78% | |
| Bank Of New York Mellon Corp | 0.00% | 377,402 | $17,552,968 | $18,217,195 | +$664,227 | +3.78% | |
| Schroder Investment Management Group | 0.01% | 368,017 | $17,223,195 | $17,764,181 | +$540,986 | +3.14% | |
| Principal Financial Group Inc | 0.01% | 348,461 | $16,206,921 | $16,820,212 | +$613,291 | +3.78% | |
| Freestone Grove Partners Lp | 0.10% | 316,398 | $14,715,671 | $15,272,531 | +$556,860 | +3.78% | |
| Fmr Llc | 0.00% | 309,091 | $14,375,819 | $14,919,823 | +$544,004 | +3.78% | |
| Jpmorgan Chase & Co | 0.00% | 272,329 | $12,861,482 | $13,145,321 | +$283,839 | +2.21% | |
| Nuveen, Llc | 0.00% | 262,675 | $12,217,015 | $12,679,322 | +$462,307 | +3.78% | |
| Ubs Group Ag | 0.00% | 220,457 | $10,253,456 | $10,641,459 | +$388,003 | +3.78% | |
| Glenmede Trust Co Na | 0.04% | 210,952 | $9,811,377 | $10,182,653 | +$371,276 | +3.78% | |
| Public Sector Pension Investment Board | 0.02% | 199,351 | $9,271,815 | $9,622,673 | +$350,858 | +3.78% | |
| Mutual Of America Capital Management Llc | 0.08% | 182,909 | $8,507,098 | $8,829,017 | +$321,919 | +3.78% | |
| Ameriprise Financial Inc | 0.00% | 171,529 | $7,977,831 | $8,279,705 | +$301,874 | +3.78% | |
| Aristotle Capital Boston, Llc | 0.53% | 169,686 | $7,892,094 | $8,190,743 | +$298,649 | +3.78% | |
| American Century Companies Inc | 0.00% | 160,129 | $7,447,600 | $7,729,427 | +$281,827 | +3.78% | |
| Man Group Plc | 0.01% | 156,422 | $7,275,187 | $7,550,490 | +$275,303 | +3.78% | |
| Third Avenue Management | Marty Whitman | 1.14% | 152,724 | $7,103,193 | $7,371,987 | +$268,794 | +3.78% |
| Bruce & Co., Inc. | 1.89% | 150,000 | $6,976,500 | $7,240,500 | +$264,000 | +3.78% |
Frequently asked questions about SUPN
Who owns the most SUPN stock?
The largest holders of SUPN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SUPERNUS PHARMACEUTICALS INC (SUPN).
Is SUPN widely held by superinvestors?
Many widely followed stocks like SUPN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SUPN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.