Ticker · CUSIP 868459108

SUPN

SUPERNUS PHARMACEUTICALS INC

Healthcare·Drug Manufacturers - Specialty & Generic

···Share

Holders (tracked)

Combined shares

8,350,142

Combined value

$415.00M

Last close

$51.39

Quarter

2025Q4

Price is +3.4% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$51.39+20.63 (+67.07%)H $57.00 · L $30.29 · Avg Vol 727K

Congress buyCongress sell

Tracked holders · last 8 quarters

+3 vs previous quarter over the last 8.

SEC event timeline

22 events

Ken Griffin (Citadel Advisors) trimmed2026-02-17
−963,967 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−137,310 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−271,622 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+2,293,773 shares · 2025Q4
Position
Steve Cohen (Point72) added2026-02-17
+503,316 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+2,880 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+33,247 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−437 shares · 2025Q4
Position
Jeremy Grantham (GMO) opened position2026-02-17
+4,241 shares · 2025Q4
Position
AQR Capital Management trimmed2026-02-17
−10,197 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−8,100 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+120,396 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+333,220 shares · 2025Q3
Position
Steve Cohen (Point72) added2025-11-14
+1,253,694 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+200,671 shares · 2025Q3
Position
D.E. Shaw & Co. added2025-11-14
+380,983 shares · 2025Q3
Position
Wellington Management added2025-11-14
+2,791 shares · 2025Q3
Position
AQR Capital Management trimmed2025-11-14
−4,130 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+2,601 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+85,300 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−31,405 shares · 2025Q3
Position
Norges Bank (Norway SWF) trimmed2025-11-12
−46,505 shares · 2024Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for SUPN →

Follow-the-investor returns

If you'd copied each holder of SUPN…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Jeremy Grantham (GMO)	2017Q1	$27.12	+89.5%	$218K
Renaissance Technologies	2017Q4	$30.59	+68.0%	$89.0M
AQR Capital Management	2016Q1	$31.30	+64.2%	$6.5M
Wellington Management	2016Q1	$32.13	+59.9%	$1.2M
Paul Tudor Jones (Tudor Investment)	2016Q1	$32.55	+57.9%	$1.7M
T. Rowe Price	2016Q1	$33.93	+51.5%	$2.7M
D.E. Shaw & Co.	2016Q1	$37.22	+38.1%	$36.4M
Two Sigma Investments	2017Q2	$44.27	+16.1%	$6.2M
Steve Cohen (Point72)	2016Q1	$44.75	+14.8%	$116.4M
Norges Bank (Norway SWF)	2017Q3	$47.26	+8.7%	$6.2M
Izzy Englander (Millennium Mgmt)	2016Q1	$49.50	+3.8%	$2.3M
Izzy Englander (Millennium Mgmt)	2016Q1	$49.50	+3.8%	$2.3M
Ken Griffin (Citadel Advisors)	2016Q1	$49.66	+3.5%	$23.3M
Ken Griffin (Citadel Advisors)	2016Q1	$49.66	+3.5%	$23.3M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Norges Bank (Norway SWF)
+120,396
$6.0M
Paul Tudor Jones (Tudor Investment)
+33,247
$1.7M
Jeremy Grantham (GMO)
+4,241
$211K

Added to3

Izzy Englander (Millennium Mgmt)
+2,293,773
$114.0M
Steve Cohen (Point72)
+503,316
$25.0M
T. Rowe Price
+2,880
$143

Trimmed6

Ken Griffin (Citadel Advisors)
−963,967
$47.9M
D.E. Shaw & Co.
−271,622
$13.5M
Two Sigma Investments
−137,310
$6.8M
AQR Capital Management
−10,197
$507K
Renaissance Technologies
−8,100
$403K
Wellington Management
−437
$22K

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	10	11,409,925	$15.71B	—
2022Q2	10	11,614,760	$12.72B	—
2022Q3	10	11,982,028	$405.6M	—
2022Q4	13	12,926,254	$461.1M	+3
2023Q1	15	12,251,940	$443.9M	+2
2023Q2	14	12,932,810	$388.8M	-1
2023Q3	11	12,960,176	$357.3M	-3
2023Q4	10	13,100,764	$379.1M	-1
2024Q1	12	12,710,989	$433.6M	+2
2024Q2	13	13,184,510	$352.7M	+1
2024Q3	12	2,919,961	$91.0M	-1
2024Q4	11	2,568,226	$92.9M	-1
2025Q1	11	2,939,700	$96.3M	—
2025Q2	11	3,258,905	$102.7M	—
2025Q3	11	6,929,222	$331.1M	—
2025Q4	14	8,350,142	$415.0M	+3

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2026-03-03	Gilbert Cisneros	Buy	$1K – $15K	PDF ↗
2025-12-11	Gilbert Cisneros	Buy	$1K – $15K	PDF ↗
2025-10-09	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2025-03-24	Gilbert Cisneros	Buy	$1K – $15K	PDF ↗

Who owns SUPN

14 super-investors · 2025Q4

Tracked stake

8.35M

Combined value

$415M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added4Trim7

#	Manager	Shares	Value	% of book	Last action
1	Izzy Englander Millennium Mgmt	2.64M	$131M	0.1%	Added+2.29M
2	Steve Cohen Point72	2.26M	$113M	0.1%	Added+503.3K
3	Renaissance Technologies	1.73M	$86M	0.1%	Trim−8.1K
4	D.E. Shaw & Co.	708.0K	$35M	0.0%	Trim−271.6K
5	Ken Griffin Citadel Advisors	453.0K	$23M	0.0%	Trim−964.0K
6	AQR Capital Management	126.2K	$6M	0.0%	Trim−10.2K
7	Two Sigma Investments	120.7K	$6M	0.0%	Trim−137.3K
8	Norges Bank Norway SWF	120.4K	$6M	0.0%	New+120.4K
9	T. Rowe Price	52.8K	$3M	0.0%	Added+2.9K
10	Izzy Englander Millennium Mgmt	45.0K	$2M	0.0%	Added+2.29M
11	Paul Tudor Jones Tudor Investment	33.2K	$2M	0.0%	New+33.2K
12	Ken Griffin Citadel Advisors	25.9K	$1M	0.0%	Trim−964.0K
13	Wellington Management	23.3K	$1M	0.0%	Trim−437
14	Jeremy Grantham GMO	4.2K	$211K	0.0%	New+4.2K

Recent moves

20 transactions

TRIMAQR Capital Management
−10,197 · 2025Q4
NEWJeremy Grantham (GMO)
+4,241 · 2025Q4
ADDT. Rowe Price
+2,880 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−963,967 · 2025Q4
ADDSteve Cohen (Point72)
+503,316 · 2025Q4
TRIMTwo Sigma Investments
−137,310 · 2025Q4
TRIMD.E. Shaw & Co.
−271,622 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+33,247 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+2,293,773 · 2025Q4
TRIMWellington Management
−437 · 2025Q4
TRIMRenaissance Technologies
−8,100 · 2025Q4
NEWNorges Bank (Norway SWF)
+120,396 · 2025Q4
ADDSteve Cohen (Point72)
+1,253,694 · 2025Q3
ADDT. Rowe Price
+2,601 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+333,220 · 2025Q3
ADDTwo Sigma Investments
+200,671 · 2025Q3
ADDD.E. Shaw & Co.
+380,983 · 2025Q3
ADDWellington Management
+2,791 · 2025Q3
TRIMAQR Capital Management
−4,130 · 2025Q3
ADDRenaissance Technologies
+85,300 · 2025Q3

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