# EDGAR Filing Document

**Accession Number:** 0001237262
**File Stem:** 0001104659-26-074753
**Filing Date:** 2026-6
**Character Count:** 8067
**Document Hash:** 5ac118cec6d25872693e7f8d49d7eb14
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-074753.hdr.sgml**: 20260616

**ACCESSION NUMBER**: 0001104659-26-074753

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260616

**FILED AS OF DATE**: 20260616

**DATE AS OF CHANGE**: 20260616

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** MCKEE WILLIAM
- **CENTRAL INDEX KEY:** 0001237262

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39294
- **FILM NUMBER:** 261096185
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Assertio Holdings, Inc.
- **CENTRAL INDEX KEY:** 0001808665
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 850598378
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 100 S. SAUNDERS ROAD
- **STREET 2:** SUITE 300
- **CITY:** LAKE FOREST
- **STATE:** IL
- **ZIP:** 60045
- **BUSINESS PHONE:** (224) 419-7106

**MAIL ADDRESS:**
- **STREET 1:** 100 S. SAUNDERS ROAD
- **STREET 2:** SUITE 300
- **CITY:** LAKE FOREST
- **STATE:** IL
- **ZIP:** 60045

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[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**<sup>*</sup><br>MCKEE WILLIAM<br><sub>(Last) (First) (Middle)</sub><br>ASSERTIO HOLDINGS, INC.<br>100 SOUTH SAUNDERS ROAD, SUITE 300<br><sub>(Street)</sub><br>LAKE FOREST, IL 60045<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-16 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Assertio Holdings, Inc. [ ASRT ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-06-16 |  | U |  | 27936<sup>(1)(2)(3)</sup> | D | $0 | 0 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | $15.15 | 2026-06-16 |  | D |  |  | 5415 | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 5415 | <sup>(4)</sup> | 0 | D |  |
| Stock Option (Right to Buy) | $9.2565 | 2026-06-16 |  | D |  |  | 5415 | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 5415 | <sup>(4)</sup> | 0 | D |  |

---

### Footnotes:

(1) This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of May 13, 2026, by and among Assertio Holdings, Inc. (the "Issuer"), Zydus Worldwide DMCC ("Parent"), Zara Merger Sub Inc., a wholly owned subsidiary of Parent ("Purchaser") and Zydus Pharmaceuticals (USA) Inc., pursuant to which Purchaser completed a tender offer (the "Offer") for all outstanding shares of common stock of the Issuer ("Company Common Stock") at a price of $23.50 per share in cash, without interest (the "Offer Price"), and thereafter merged with and into the Issuer, with the Issuer continuing as the surviving corporation and a wholly owned subsidiary of Parent (the "Merger"), effective as of June 16, 2026 (the "Effective Time"). At the Effective Time, each issued and outstanding share of Company Common Stock was cancelled and converted into the right [continues to Footnote 2]

(2) [continues from Footnote 1] to receive the Offer Price, less any applicable withholding taxes.

(3) Pursuant to the Merger Agreement, each restricted stock unit of the Issuer (each, a "Company RSU") that was outstanding but unvested immediately prior to the Effective Time became fully vested as of immediately prior to the Effective Time and, at the Effective Time, each outstanding Company RSU was cancelled and converted into the right to receive a cash payment, less any applicable withholding taxes, equal to the Offer Price.

(4) Pursuant to the Merger Agreement, each option to purchase shares of Company Common Stock (each, a "Company Stock Option") that was outstanding immediately prior to the Effective Time, whether vested or unvested, with an exercise price per share less than the Offer Price, was cancelled at the Effective Time and converted into the right to receive a cash payment, less any applicable withholding taxes, equal to the product of (A) the excess of the Offer Price over the exercise price payable per share of Company Common Stock under such Company Stock Option, multiplied by (B) the total number of shares of Company Common Stock subject to such Company Stock Option. Each Company Stock Option with an exercise price per share equal to or greater than the Offer Price was cancelled at the Effective Time without any cash payment in respect thereof.

**Signature:** /s/ Sam Schlessinger, Attorney-in-fact for William T. McKee  
**Date:** 2026-06-16

### Remarks:

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.**