Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * De Walt Diana 2. Issuer Name and Ticker or Trading Symbol HOLOGIC INC [HOLX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Human Resources (Last) (First) (Middle) 250 CAMPUS DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 04/07/2026 (Street) MARLBOROUGH, MA 01752 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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) Code V Amount (A) or (D) Price Common Stock 04/07/2026 D 7,603 D (1)(2) 0 D

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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
De Walt Diana 250 CAMPUS DRIVE MARLBOROUGH, MA 01752			SVP, Human Resources

Signatures

/s/ Mark W. Irving, attorney-in-fact for Ms. De Walt		04/09/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Pursuant to the Agreement and Plan of Merger, dated as of October 21, 2025 (the "Merger Agreement"), by and among Hologic, Inc. ("Hologic" or "Company"), Hopper Parent Inc., a Delaware corporation ("Parent"), and Hopper Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Company (the "Merger"), with the Company surviving the Merger as a wholly owned subsidiary of Parent. At the effective time of the Merger (the "Effective Time"), each share of Hologic common stock, par value $0.01 ("Company Common Stock"), was converted into the right to receive (x) $76.00 per share in cash, without interest (the "Cash Consideration") and (y) one (1) contingent value right, which represents the right to receive up to $3.00 in cash, when and if payable (each, a "CVR") (the consideration contemplated by clauses (x) and (y), together, the "Merger Consideration").
(2)	At the Effective Time, each time-vesting restricted stock unit award ("Company RSU") held by the reporting person granted before October 21, 2025 converted into the right to receive the Merger Consideration for each share of Company Common Stock underlying the Company RSU; and each Company RSU held by the reporting person granted after October 21, 2025 converted into, for each share of Company Common Stock subject to such Company RSU immediately prior to the Effective Time, (i) an unvested award representing the right to receive a cash payment equal to the Cash Consideration, and (ii) an unvested award representing the right to receive cash payments equal to the payments to the holder of one CVR, if any, pursuant to the CVR agreement, in each case, subject to the terms applied to the corresponding Company RSU immediately prior to the Effective Time. As a result of the Merger, the reporting person no longer beneficially owns, directly or indirectly, any shares of Company Common Stock.

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