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Supernus CEO Khattar's shares convert at 1.5401 ratio

SUPN's president and CEO received Indivior common stock rights in the merger; outstanding equity awards were also converted under the exchange ratio.

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Form Type
4

Rhea-AI Filing Summary

Supernus Pharmaceuticals, Inc. (SUPN) President and CEO Jack A. Khattar reported merger-related dispositions on November 2, 2026. His 1,258,351 directly held common shares and 958,100 common shares held through the KBT Trust were canceled and converted into the right to receive 1.5401 shares of Indivior common stock per Supernus Pharmaceuticals share.

At the merger’s effective time, Indivior assumed and converted outstanding equity awards under the exchange ratio; performance stock unit awards became time-vesting restricted stock units. Indivior changed its name to Supernus, Inc., and Supernus Pharmaceuticals became its wholly owned subsidiary. Khattar received no cash consideration other than cash in lieu of a fractional share.

Insider Khattar Jack A.
Role President, CEO
Type Security Shares Price Value
Other Restricted Stock Unit F2, F3 400,000 $0.00 $0.00
Other Performance Share Unit F4, F2, F5 19,320 $0.00 $0.00
Other Performance Share Unit F4, F2, F6 169,147 $0.00 $0.00
Other Performance Share Unit F4, F2, F7 204,966 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F8 250,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F9 300,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F10 281,250 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F11 200,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F12 250,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F13 280,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F14 322,000 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F15 331,660 $0.00 $0.00
Other Employee Stock Option (Right to Buy) F2, F16 341,610 $0.00 $0.00
Other Common Stock F1 1,258,351 $0.00 $0.00
Other Common Stock F1 958,100 $0.00 $0.00
Holdings After Transaction: Restricted Stock Unit — 0 contracts (Direct); Performance Share Unit — 0 contracts (Direct); Employee Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 0 shares (Direct); Common Stock — 0 shares (Indirect, By the KBT Trust)
Holdings Before and After: Restricted Stock Unit, 400,000 to 0 contracts (Direct); Performance Share Unit, 393,433 to 0 contracts (Direct); Employee Stock Option (Right to Buy), 2,556,520 to 0 contracts (Direct); Common Stock, 1,258,351 to 0 shares (Direct); Common Stock, 958,100 to 0 shares (Indirect, By the KBT Trust)
Footnotes (16)
  1. F1. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/26, Artemis Merger Sub Inc. merged with and into Supernus Pharmaceuticals, with Supernus Pharmaceuticals surviving as a wholly-owned subsidiary of Indivior. At the effective time, each outstanding share of Supernus Pharmaceuticals common stock was cancelled and automatically converted into the right to receive 1.5401 shares of Indivior common stock. In connection with the merger, Indivior changed its name to "Supernus, Inc." The reporting person's shares of Supernus Pharmaceuticals common stock were disposed of, and the shares of Supernus, Inc. common stock received in exchange were acquired, pursuant to the merger. The reporting person received no cash consideration other than cash in lieu of a fractional share.
  2. F2. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/2026, each outstanding Supernus Pharmaceuticals equity award was assumed by Indivior (renamed Supernus, Inc.) and automatically converted into a corresponding Supernus, Inc. equity award covering the number of Supernus, Inc. shares equal to the number of Supernus Pharmaceuticals shares subject to the award multiplied by the 1.5401 exchange ratio (rounded down), with the per-share exercise price divided by the exchange ratio and rounded up to the nearest whole cent. Each converted award is subject to substantially the same terms and conditions, including vesting, that applied immediately prior to the effective time, except performance stock unit awards ceased were converted into time-vesting restricted stock units.
  3. F3. These restricted stock units ("RSUs") are settled in common stock upon vesting, which occurs in four installments. 50% of the RSUs vest upon the closing of the merger-of-equals transaction between Supernus Pharmaceuticals, Inc. and Indivior Pharmaceuticals, Inc. (the "Closing"). 15% of the RSUs vest upon the one-year anniversary of the Closing. 15% of the RSUs vest upon the two-year anniversary of the Closing. 20% of the RSUs vest upon the three-year anniversary of the Closing.
  4. F4. Each performance share unit represents the right to receive one share of Supernus common stock upon vesting.
  5. F5. On February 22, 2024, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on June 24, 2024.
  6. F6. On February 19, 2025, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on May 3, 2025.
  7. F7. On February 18, 2026, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on July 15, 2026.
  8. F8. The option vests in four equal installments beginning on February 14, 2019
  9. F9. The option vests in four equal installments beginning on February 22, 2020
  10. F10. The option vests in four equal installments beginning on February 21, 2021.
  11. F11. The option vested in four equal installments beginning on February 19, 2022.
  12. F12. The option vests in four equal annual installments beginning on February 22, 2023.
  13. F13. The option vests in four equal annual installments beginning on February 23, 2024.
  14. F14. The option vests in four equal annual installments beginning on February 22, 2025.
  15. F15. The option vests in four equal annual installments beginning on February 20, 2026.
  16. F16. The option vests in four equal annual installments beginning on February 18, 2027.
Direct common shares disposed 1,258,351 shares Merger effective November 2, 2026
KBT Trust common shares disposed 958,100 shares Merger effective November 2, 2026
Merger exchange ratio 1.5401 Indivior shares per Supernus Pharmaceuticals share Right to receive Indivior common stock
Restricted stock units 400,000 shares subject to the award Award assumed and converted in the merger
Restricted stock units vesting at closing 50% Vesting schedule described for the reported RSUs
effective time technical
"at the effective time of the merger"
The exact clock time when a regulatory filing, approval, or corporate action formally becomes legally active; from that moment the change is binding and can be acted on. Investors care because the effective time marks when ownership, rights, trading rules, or new securities take effect — like a light switch turning on a contract or transaction — which determines when risks, benefits and market reactions begin.
restricted stock units technical
"settled in common stock upon vesting"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Performance Share Unit technical
"represents the right to receive one share"
A performance share unit (PSU) is a form of executive or employee pay that promises shares (or the cash value of shares) only if the company meets specific performance targets over a set period. Think of it like a bonus cheque that only arrives if the company hits agreed goals — it aligns managers’ rewards with business results and signals to investors how leadership is being incentivized to grow value over time.
exchange ratio technical
"multiplied by the 1.5401 exchange ratio"
The exchange ratio is the number used to decide how many shares of one company you get for each share you own in another company during a merger or acquisition. It’s like a recipe that tells you how to swap shares fairly, ensuring both companies’ values are balanced. This ratio matters because it determines how ownership divides between the companies' shareholders.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many SUPN common shares did Jack A. Khattar dispose of in the merger?

The reported dispositions included 1,258,351 directly held common shares and 958,100 common shares held through the KBT Trust. The shares were canceled and converted into rights to receive Indivior common stock under the merger terms.

What exchange ratio applied to SUPN shares in the merger?

Each outstanding Supernus Pharmaceuticals common share was converted into the right to receive 1.5401 shares of Indivior common stock. Indivior changed its name to Supernus, Inc. Khattar received no cash consideration other than cash in lieu of a fractional share.

How were Jack A. Khattar's equity awards treated in the SUPN merger?

Indivior assumed and converted the outstanding awards under the merger terms, with substantially the same terms and conditions, including vesting. Performance stock unit awards became time-vesting restricted stock units. The reported restricted stock units vest in installments: 50% at closing, then 15%, 15%, and 20% on the first, second, and third anniversaries.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Khattar Jack A.

(Last)(First)(Middle)
C/O SUPERNUS PHARMACEUTICALS INC.
9715 KEY WEST AVENUE

(Street)
ROCKVILLE MARYLAND 20850

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
SUPERNUS PHARMACEUTICALS, INC. [ SUPN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President, CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock11/02/2026J(1)1,258,351D$0(1)0D
Common Stock11/02/2026J(1)958,100D$0(1)0IBy the KBT Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit$011/02/2026J(2)400,000 (3) (3)Common Stock400,000$00D
Performance Share Unit(4)11/02/2026J(2)19,320 (5) (5)Common Stock19,320$00D
Performance Share Unit(4)11/02/2026J(2)169,147 (6) (6)Common Stock169,147$00D
Performance Share Unit(4)11/02/2026J(2)204,966 (7) (7)Common Stock204,966$00D
Employee Stock Option (Right to Buy)$39.411/02/2026J(2)250,00002/14/2019(8)02/14/2028Common Stock250,000$00D
Employee Stock Option (Right to Buy)$36.7511/02/2026J(2)300,00002/22/2020(9)02/22/2029Common Stock300,000$00D
Employee Stock Option (Right to Buy)$23.9911/02/2026J(2)281,25002/21/2021(10)02/21/2030Common Stock281,250$00D
Employee Stock Option (Right to Buy)$29.6111/02/2026J(2)200,00002/19/2022(11)02/19/2031Common Stock200,000$00D
Employee Stock Option (Right to Buy)$32.211/02/2026J(2)250,000 (12)02/22/2032Common Stock250,000$00D
Employee Stock Option (Right to Buy)$38.611/02/2026J(2)280,000 (13)02/23/2033Common Stock280,000$00D
Employee Stock Option (Right to Buy)$27.9411/02/2026J(2)322,000 (14)02/22/2034Common Stock322,000$00D
Employee Stock Option (Right to Buy)$34.5911/02/2026J(2)331,660 (15)02/20/2035Common Stock331,660$00D
Employee Stock Option (Right to Buy)$50.211/02/2026J(2)341,610 (16)02/18/2036Common Stock341,610$00D
Explanation of Responses:
1. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/26, Artemis Merger Sub Inc. merged with and into Supernus Pharmaceuticals, with Supernus Pharmaceuticals surviving as a wholly-owned subsidiary of Indivior. At the effective time, each outstanding share of Supernus Pharmaceuticals common stock was cancelled and automatically converted into the right to receive 1.5401 shares of Indivior common stock. In connection with the merger, Indivior changed its name to "Supernus, Inc." The reporting person's shares of Supernus Pharmaceuticals common stock were disposed of, and the shares of Supernus, Inc. common stock received in exchange were acquired, pursuant to the merger. The reporting person received no cash consideration other than cash in lieu of a fractional share.
2. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/2026, each outstanding Supernus Pharmaceuticals equity award was assumed by Indivior (renamed Supernus, Inc.) and automatically converted into a corresponding Supernus, Inc. equity award covering the number of Supernus, Inc. shares equal to the number of Supernus Pharmaceuticals shares subject to the award multiplied by the 1.5401 exchange ratio (rounded down), with the per-share exercise price divided by the exchange ratio and rounded up to the nearest whole cent. Each converted award is subject to substantially the same terms and conditions, including vesting, that applied immediately prior to the effective time, except performance stock unit awards ceased were converted into time-vesting restricted stock units.
3. These restricted stock units ("RSUs") are settled in common stock upon vesting, which occurs in four installments. 50% of the RSUs vest upon the closing of the merger-of-equals transaction between Supernus Pharmaceuticals, Inc. and Indivior Pharmaceuticals, Inc. (the "Closing"). 15% of the RSUs vest upon the one-year anniversary of the Closing. 15% of the RSUs vest upon the two-year anniversary of the Closing. 20% of the RSUs vest upon the three-year anniversary of the Closing.
4. Each performance share unit represents the right to receive one share of Supernus common stock upon vesting.
5. On February 22, 2024, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on June 24, 2024.
6. On February 19, 2025, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on May 3, 2025.
7. On February 18, 2026, the Reporting Person was awarded Performance Share Units with individual performance objectives and a defined performance period established on July 15, 2026.
8. The option vests in four equal installments beginning on February 14, 2019
9. The option vests in four equal installments beginning on February 22, 2020
10. The option vests in four equal installments beginning on February 21, 2021.
11. The option vested in four equal installments beginning on February 19, 2022.
12. The option vests in four equal annual installments beginning on February 22, 2023.
13. The option vests in four equal annual installments beginning on February 23, 2024.
14. The option vests in four equal annual installments beginning on February 22, 2025.
15. The option vests in four equal annual installments beginning on February 20, 2026.
16. The option vests in four equal annual installments beginning on February 18, 2027.
Remarks:
/s/ Timothy C. Dec, as attorney-in-fact11/04/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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