Comparable stake leader
BlackRock, Inc.
SEC ownership of SUPERNUS PHARMACEUTICALS, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001356576.
Disclosed value leader
BlackRock, Inc.
Comparable rows
6/50
Latest evidence
30 Jun 2026
- Public ticker
- SUPN on Nasdaq
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
6 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001356576
- Issuer location
- Rockville, MD
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SUPERNUS PHARMACEUTICALS, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
6/50
Latest evidence
30 Jun 2026
13F
13D/G
Lead comparable stake: 15%
44 rows are not safely comparable across share classes.
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
6 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
15%
MILLENNIUM MANAGEMENT LLC
6.6%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.7%
VANGUARD CAPITAL MANAGEMENT LLC
5%
ARMISTICE CAPITAL, LLC
4.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
15%
Reported 13D/G
· 31 Mar 2025
|
$434,870,642
9,350,046 shares
|
— | 30 Jun 2026 |
| MILLENNIUM MANAGEMENT LLC |
13D/G
13F
Company
|
6.6%
Reported 13D/G
· 30 Jun 2026
|
$182,449,588
3,853,212 shares
|
+$27,065,118 | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.7%
Reported 13D/G
· 31 Mar 2026
|
$168,680,442
3,263,309 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5%
Reported 13D/G
· 31 Mar 2026
|
$149,946,694
2,900,884 shares
|
$0 | 31 Mar 2026 |
| ARMISTICE CAPITAL, LLC |
13D/G
13F
Company
|
4.8%
Reported 13D/G
· 31 Dec 2025
|
$136,154,640
2,764,000 shares
|
-$3,546,720 | 31 Dec 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
Company
|
4.7%
Reported 13D/G
· 31 Dec 2025
|
$134,803,348
2,712,341 shares
|
$0 | 31 Dec 2025 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$114,406,600
2,459,828 shares
|
— | 30 Jun 2026 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. |
13F
Company
|
—
denominator unverified
|
$110,616,000
2,378,329 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$10,264,930.
Buys
$0
Insiders: 0
Sells
$10,264,930
Insiders: 7
Net
-$10,264,930
Shares: -202,091
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 202,091
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 181,381 | $0 | $9,225,228 | -$9,225,228 |
| 9-12 | 0 | 20,710 | $0 | $1,039,702 | -$1,039,702 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to SUPERNUS PHARMACEUTICALS, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Tami Tillotson Martin
Net 12M change
-$10.26M
Full value: -$10,264,930 · USD · 12-month changeLatest report
02 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Tami Tillotson Martin | Sr. V.P., Regulatory Affairs | $2,631,048 | Mixed | 23 Feb 2024 | ||
| John M. Siebert | Director | $2,555,624 | Mixed | 23 Feb 2024 | ||
| Timothy C. Dec | Senior Vice-President & CFO | $198,500 | Mixed | 02 Nov 2026 | ||
| Charles W. Newhall III | Director | $177,658 | Mixed | 02 Nov 2026 | ||
| Carrolee Barlow | Director | $177,658 | Mixed | 02 Nov 2026 | ||
| Bethany Sensenig | Director | $177,658 | -$228,265 | -56% | Mixed | 02 Nov 2026 |
| Frederick M. Hudson | Director | $177,658 | -$271,725 | -60% | Mixed | 02 Nov 2026 |
| Georges Gemayel | Director | $177,658 | -$1,002,811 | -85% | Mixed | 02 Nov 2026 |
| Frank Mottola | SVP, Chief Tech. Ops. Officer | $148,875 | -$1,095,224 | -88% | Mixed | 02 Nov 2026 |
| Padmanabh P. Bhatt | Sr. VP of IP, CSO | $97,875 | -$5,419,984 | -98% | Mixed | 02 Nov 2026 |
| Jonathan Rubin | SVP, Chief Medical Officer | $97,875 | Mixed | 02 Nov 2026 | ||
| William Todd Horich | SVP, Commercial Operations | $0 | -$483,797 | -100% | Mixed | 02 Nov 2026 |
| Jack A. Khattar | President, CEO, Director | $0 | -$1,763,124 | -100% | Mixed | 02 Nov 2026 |
Recent insider transactions for SUPERNUS PHARMACEUTICALS, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Georges Gemayel | SUPN | Common Stock | Other | -100% | -27,277 | 0 | 02 Nov 2026 | Direct | ||
| Georges Gemayel | SUPN | Director Stock Option (Right to Buy) | Other | -100% | -77,411 | 0 | 02 Nov 2026 | Direct | ||
| Georges Gemayel | SUPN | Restricted Stock Unit | Other | -100% | -2,989 | 0 | 02 Nov 2026 | Direct | ||
| William Todd Horich | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -140,500 | 0 | 02 Nov 2026 | Direct | ||
| William Todd Horich | SUPN | Performance Share Unit | Other | -100% | -8,500 | 0 | 02 Nov 2026 | Direct | ||
| William Todd Horich | SUPN | Restricted Stock Unit | Other | -100% | -115,125 | 0 | 02 Nov 2026 | Direct | ||
| Jack A. Khattar | SUPN | Common Stock | Other | -100% | -958,100 | 0 | 02 Nov 2026 | By the KBT Trust | ||
| Jack A. Khattar | SUPN | Common Stock | Other | -100% | -1,258,351 | 0 | 02 Nov 2026 | Direct | ||
| Jack A. Khattar | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -2,556,520 | 0 | 02 Nov 2026 | Direct | ||
| Jack A. Khattar | SUPN | Performance Share Unit | Other | -100% | -393,433 | 0 | 02 Nov 2026 | Direct | ||
| Jack A. Khattar | SUPN | Restricted Stock Unit | Other | -100% | -400,000 | 0 | 02 Nov 2026 | Direct | ||
| Timothy C. Dec | SUPN | Common Stock | Other | -100% | -9,129 | 0 | 02 Nov 2026 | Direct | ||
| Timothy C. Dec | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -257,500 | 0 | 02 Nov 2026 | Direct | ||
| Timothy C. Dec | SUPN | Performance Share Unit | Other | -100% | -7,250 | 0 | 02 Nov 2026 | Direct | ||
| Timothy C. Dec | SUPN | Restricted Stock Unit | Other | -100% | -84,875 | 0 | 02 Nov 2026 | Direct | ||
| Carrolee Barlow | SUPN | Common Stock | Other | -100% | -27,045 | 0 | 02 Nov 2026 | Direct | ||
| Carrolee Barlow | SUPN | Director Stock Option (Right to Buy) | Other | -100% | -72,975 | 0 | 02 Nov 2026 | Direct | ||
| Carrolee Barlow | SUPN | Restricted Stock Unit | Other | -100% | -2,989 | 0 | 02 Nov 2026 | Direct | ||
| Padmanabh P. Bhatt | SUPN | Common Stock | Other | -100% | -18,637 | 0 | 02 Nov 2026 | Direct | ||
| Padmanabh P. Bhatt | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -53,500 | 0 | 02 Nov 2026 | Direct | ||
| Padmanabh P. Bhatt | SUPN | Restricted Stock Unit | Other | -100% | -110,125 | 0 | 02 Nov 2026 | Direct | ||
| Padmanabh P. Bhatt | SUPN | Performance Share Unit | Other | -100% | -9,350 | 0 | 02 Nov 2026 | Direct | ||
| Jonathan Rubin | SUPN | Common Stock | Other | -100% | -13,979 | 0 | 02 Nov 2026 | Direct | ||
| Jonathan Rubin | SUPN | Performance Share Unit | Other | -100% | -7,750 | 0 | 02 Nov 2026 | Direct | ||
| Jonathan Rubin | SUPN | Restricted Stock Unit | Other | -100% | -80,125 | 0 | 02 Nov 2026 | Direct | ||
| Jonathan Rubin | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -143,500 | 0 | 02 Nov 2026 | Direct | ||
| Frank Mottola | SUPN | Common Stock | Other | -100% | -19,544 | 0 | 02 Nov 2026 | Direct | ||
| Frank Mottola | SUPN | Employee Stock Option (Right to Buy) | Other | -100% | -159,500 | 0 | 02 Nov 2026 | Direct | ||
| Frank Mottola | SUPN | Performance Share Unit | Other | -100% | -10,600 | 0 | 02 Nov 2026 | Direct | ||
| Frank Mottola | SUPN | Restricted Stock Unit | Other | -100% | -110,750 | 0 | 02 Nov 2026 | Direct | ||
| Charles W. Newhall III | SUPN | Common Stock | Other | -100% | -124,119 | 0 | 02 Nov 2026 | Direct | ||
| Charles W. Newhall III | SUPN | Director Stock Option (Right to Buy) | Other | -100% | -85,316 | 0 | 02 Nov 2026 | Direct | ||
| Charles W. Newhall III | SUPN | Restricted Stock Unit | Other | -100% | -2,989 | 0 | 02 Nov 2026 | Direct | ||
| Frederick M. Hudson | SUPN | Common Stock | Other | -100% | -60,413 | 0 | 02 Nov 2026 | Direct | ||
| Frederick M. Hudson | SUPN | Director Stock Option (Right to Buy) | Other | -100% | -85,316 | 0 | 02 Nov 2026 | Direct | ||
| Frederick M. Hudson | SUPN | Restricted Stock Unit | Other | -100% | -2,989 | 0 | 02 Nov 2026 | Direct | ||
| Bethany Sensenig | SUPN | Restricted Stock Unit | Other | -100% | -2,989 | 0 | 02 Nov 2026 | Direct | ||
| Bethany Sensenig | SUPN | Director Stock Option (Right to Buy) | Other | -100% | -44,678 | 0 | 02 Nov 2026 | Direct | ||
| Jack A. Khattar | SUPN | Restricted Stock Unit | Award | 400,000 | 400,000 | 30 Oct 2026 | Direct | |||
| Jonathan Rubin | SUPN | Restricted Stock Unit | Award | 70,000 | 70,000 | 30 Oct 2026 | Direct | |||
| Timothy C. Dec | SUPN | Restricted Stock Unit | Award | 70,000 | 70,000 | 30 Oct 2026 | Direct | |||
| Frank Mottola | SUPN | Restricted Stock Unit | Award | 100,000 | 100,000 | 30 Oct 2026 | Direct | |||
| William Todd Horich | SUPN | Restricted Stock Unit | Award | 100,000 | 100,000 | 30 Oct 2026 | Direct | |||
| Padmanabh P. Bhatt | SUPN | Restricted Stock Unit | Award | 100,000 | 100,000 | 30 Oct 2026 | Direct | |||
| Jonathan Rubin | SUPN | Common Stock | Tax liability | -2.53% | -363 | 13,979 | 12 Aug 2026 | Direct | ||
| Jonathan Rubin | SUPN | Common Stock | Options Exercise | 5.52% | 750 | 14,342 | 12 Aug 2026 | Direct | ||
| Jonathan Rubin | SUPN | Performance Share Unit | Options Exercise | -100% | -750 | 0 | 12 Aug 2026 | Direct | ||
| Frank Mottola | SUPN | Common Stock | Tax liability | -3.92% | -797 | 19,544 | 12 Aug 2026 | Direct | ||
| Frank Mottola | SUPN | Common Stock | Options Exercise | 8.83% | 1,650 | 20,341 | 12 Aug 2026 | Direct | ||
| Frank Mottola | SUPN | Performance Share Unit | Options Exercise | -100% | -1,650 | 0 | 12 Aug 2026 | Direct |
* marks a reported price that did not pass the local price check.