[Form 4] EXACT SCIENCES CORP Insider Trading Activity

Rhea-AI Filing Summary

EXACT SCIENCES CORP EVP and Chief Financial Officer Aaron Bloomer reported a series of equity changes tied to the company’s merger with Abbott Laboratories. At the merger’s effective time, each share of Exact common stock and each vested equity unit was converted into the right to receive $105.00 in cash per share, less applicable taxes.

The filing shows performance-based and time-based restricted stock units being fully vested, cancelled, and exchanged for this cash consideration, while certain newer RSUs were assumed as Abbott restricted stock units on substantially the same terms. Following these transactions, the Form 4 indicates no remaining Exact Sciences common stock or RSU holdings for Bloomer.

Insider Trade Summary

5 transactions reported

Mixed 5 txns

Insider Bloomer Aaron

Role EVP, Chief Financial Officer

Type	Security	Shares	Price	Value
Disposition	Restricted Stock Units	4,395	$0.00	--
Disposition	Restricted Stock Units	28,063	$0.00	--
Grant/Award	Common Stock	89,911	$0.00	--
Disposition	Common Stock	138,679	$0.00	--
Disposition	Common Stock	417	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock — 138,679 shares (Direct); Common Stock — 0 shares (Indirect, Held in 401(k) Plan)

Footnotes (1)

1. On March 23, 2026, pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 19, 2025, by and among Exact Sciences Corporation, a Delaware corporation (the "Issuer"), Abbott Laboratories, an Illinois corporation ("Parent"), and Badger Merger Sub I, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a direct, wholly owned subsidiary of Parent. At the effective time of the Merger (the "Effective Time"), each performance based restricted stock unit ("PSU") outstanding as of immediately prior to the Effective Time was deemed to be fully vested, with any performance conditions deemed satisfied based on actual levels of achievement of applicable target levels as of November 19, 2025, and was cancelled and converted into the right to receive $105.00 in cash, without interest (the "Merger Consideration") in respect of each share of the Issuer's common stock, par value $0.01 per share ("Common Stock") subject to such PSU, less any applicable tax withholding. At the Effective Time, on the terms and subject to the conditions set forth in the Merger Agreement, each share of Common Stock, issued and outstanding immediately prior to the Effective Time, with certain exceptions, was converted into the right to receive the Merger Consideration. Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock. These RSUs vest in four equal annual installments beginning on February 27, 2026. At the Effective Time, each RSU granted before November 19, 2025 and outstanding as of immediately prior to the Effective Time was deemed to be fully vested and cancelled and converted into the right to receive the Merger Consideration in respect of each share of Common Stock subject to such RSU, less any applicable tax withholding. At the Effective Time, each outstanding RSU as of immediately prior to the Effective Time that was granted on or after November 19, 2025 was assumed by Parent at the Effective Time as a Parent restricted stock unit on substantially the same terms and conditions as were applicable to the corresponding RSU (including with respect to double-trigger vesting protections), with the number of Parent common shares underlying such Parent restricted stock unit determined based on the Merger Consideration divided by the average closing price of a Parent common share for the 10 consecutive trading days ending on and including the trading day immediately preceding the Effective Time. These RSUs vest in four equal annual installments beginning on February 25, 2027.

Form 4 Insider Transactions: What Each Field Means →

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

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^*

Bloomer Aaron

(Last) (First) (Middle)

C/O EXACT SCIENCES CORP

5505 ENDEAVOR LANE

(Street)

MADISON WISCONSIN 53719

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
EXACT SCIENCES CORP [ EXAS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/23/2026		A		89,911(1)(2)	A	$0	138,679	D
Common Stock	03/23/2026		D		138,679	D	(3)	0	D
Common Stock	03/23/2026		D		417	D	(3)	0	I	Held in 401(k) Plan

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
Restricted Stock Units	(4)	03/23/2026		D			4,395	(5)	(5)	Common Stock	4,395	(6)	0	D
Restricted Stock Units	(4)	03/23/2026		D			28,063	(8)	(8)	Common Stock	28,063	(7)	0	D

Explanation of Responses:

1. On March 23, 2026, pursuant to the terms of that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of November 19, 2025, by and among Exact Sciences Corporation, a Delaware corporation (the "Issuer"), Abbott Laboratories, an Illinois corporation ("Parent"), and Badger Merger Sub I, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Parent ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a direct, wholly owned subsidiary of Parent.

2. At the effective time of the Merger (the "Effective Time"), each performance based restricted stock unit ("PSU") outstanding as of immediately prior to the Effective Time was deemed to be fully vested, with any performance conditions deemed satisfied based on actual levels of achievement of applicable target levels as of November 19, 2025, and was cancelled and converted into the right to receive $105.00 in cash, without interest (the "Merger Consideration") in respect of each share of the Issuer's common stock, par value $0.01 per share ("Common Stock") subject to such PSU, less any applicable tax withholding.

3. At the Effective Time, on the terms and subject to the conditions set forth in the Merger Agreement, each share of Common Stock, issued and outstanding immediately prior to the Effective Time, with certain exceptions, was converted into the right to receive the Merger Consideration.

4. Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

5. These RSUs vest in four equal annual installments beginning on February 27, 2026.

6. At the Effective Time, each RSU granted before November 19, 2025 and outstanding as of immediately prior to the Effective Time was deemed to be fully vested and cancelled and converted into the right to receive the Merger Consideration in respect of each share of Common Stock subject to such RSU, less any applicable tax withholding.

7. At the Effective Time, each outstanding RSU as of immediately prior to the Effective Time that was granted on or after November 19, 2025 was assumed by Parent at the Effective Time as a Parent restricted stock unit on substantially the same terms and conditions as were applicable to the corresponding RSU (including with respect to double-trigger vesting protections), with the number of Parent common shares underlying such Parent restricted stock unit determined based on the Merger Consideration divided by the average closing price of a Parent common share for the 10 consecutive trading days ending on and including the trading day immediately preceding the Effective Time.

8. These RSUs vest in four equal annual installments beginning on February 25, 2027.

	/s/ Aaron Bloomer by Mark Busch, attorney-in- fact	03/23/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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* Form 4: SEC 1474 (03-26)