[Form 4] HOLOGIC INC Insider Trading Activity

Rhea-AI Filing Summary

Hologic (HOLX) Chairman, President and CEO Stephen P. MacMillan reported routine equity transactions. On 11/07/2025, 50,405 shares of common stock were withheld to cover taxes at $74.10 per share tied to RSU/PSU settlements. On 11/10/2025, he received an award of 169,582 restricted stock units that vest in three equal annual installments beginning on November 10, 2025. On 11/11/2025, an additional 6,679 shares were withheld for taxes at $74.60.

Following these transactions, he beneficially owned 1,430,711 shares directly (including 1,079,673 deferred RSUs/PSUs) and 1,146,829 shares indirectly through the MacMillan Family Trust.

SEC Form 4

FORM 4

UNITED 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

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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^*

MACMILLAN STEPHEN P

(Last) (First) (Middle)

250 CAMPUS DRIVE

(Street)

MARLBOROUGH MA 01752

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HOLOGIC INC [ HOLX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman, President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
11/07/2025

4. If Amendment, Date of 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

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	11/07/2025		F		50,405(1)	D	$74.1	1,267,808(2)	D
Common Stock	11/10/2025		A		169,582(3)	A	(4)	1,437,390(2)	D
Common Stock	11/11/2025		F		6,679(1)	D	$74.6	1,430,711(2)	D
Common Stock								1,146,829	I	MacMillan Family 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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares withheld for tax obligations in connection with the settlement of performance stock units/restricted stock units for which service-based vesting requirements have been satisfied.

2. Includes 1,079,673 restricted stock units/performance stock units, the settlement of which has been deferred pursuant to the Issuer's Deferred Equity Plan.

3. Represents restricted stock units which vest in equal installments on each of the first three anniversaries of the grant date, November 10, 2025.

4. Restricted stock units are settled in shares of common stock on a one-for-one basis.

	/s/ Mark W. Irving, attorney-in-fact for Mr. MacMillan	11/12/2025
	** Signature of Reporting Person	Date
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).
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FAQ

What insider transactions did HOLX's CEO report?

Shares were withheld for taxes on 11/07/2025 (50,405 at $74.10) and 11/11/2025 (6,679 at $74.60), and an award of 169,582 RSUs was granted on 11/10/2025.

How many HOLX RSUs were granted and how do they vest?

169,582 RSUs, vesting in equal installments on each of the first three anniversaries of the November 10, 2025 grant date.

What are the CEO’s HOLX holdings after the transactions?

1,430,711 shares directly (including 1,079,673 deferred RSUs/PSUs) and 1,146,829 shares indirectly via the MacMillan Family Trust.

What does transaction code "F" indicate for HOLX?

Code F indicates shares withheld to satisfy tax obligations upon settlement of RSUs/PSUs.

Are HOLX RSUs settled in cash or stock?

Restricted stock units are settled in shares of common stock on a one-for-one basis.

Is any portion of the CEO’s HOLX equity deferred?

Yes. The direct beneficial ownership includes 1,079,673 RSUs/PSUs with settlement deferred under the Deferred Equity Plan.