Alexandria EVP uses 1,087 shares for tax withholding

Rhea-AI Filing Summary

Alexandria Real Estate Equities, Inc. executive vice president of talent management Madeleine Thorp Alsbrook had 1,087 shares of common stock withheld on March 13, 2026 to cover tax obligations upon the vesting of restricted stock, at a value of $48.41 per share. After this tax-withholding transaction, she directly holds 22,624 shares of common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 1,087 shares

Exercise Price or Tax Liability 1 txn

Insider Alsbrook Madeleine Thorp

Role EVP - Talent Management

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	1,087	$48.41	$53K

Holdings After Transaction: Common Stock — 22,624 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock.

FAQ

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

What insider transaction did ARE executive Madeleine Thorp Alsbrook report?

She reported a routine tax-withholding transaction where 1,087 shares of Alexandria Real Estate Equities common stock were withheld by the company. This occurred upon vesting of restricted stock, satisfying her related tax obligation rather than reflecting an open-market sale.

How many ARE shares were used for tax withholding and at what value?

A total of 1,087 common shares were withheld at an indicated value of $48.41 per share. These shares covered the executive’s tax obligation triggered by restricted stock vesting, and were not sold into the open market to third-party buyers.

How many ARE shares does the reporting executive hold after this Form 4?

Following the tax-withholding transaction, Madeleine Thorp Alsbrook directly holds 22,624 shares of Alexandria Real Estate Equities common stock. This figure reflects her position after 1,087 shares were withheld by the issuer to satisfy the tax liability from restricted stock vesting.

What does transaction code F mean in this ARE Form 4 filing?

Transaction code F indicates payment of an exercise price or tax liability by delivering securities. In this case, 1,087 shares were withheld by Alexandria Real Estate Equities to satisfy the executive’s tax obligation from restricted stock vesting, rather than representing a discretionary sale.

Was the ARE executive’s Form 4 transaction an open-market sale of shares?

No, the transaction was not an open-market sale. The 1,087 shares were withheld by Alexandria Real Estate Equities itself to cover a tax obligation from restricted stock vesting, a common administrative step rather than a voluntary sale for liquidity or portfolio reasons.

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

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Accepted by SEC EDGAR 03/17/2026 - 04:56 PM Learn about SEC filing dates

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

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^*

Alsbrook Madeleine Thorp

(Last) (First) (Middle)

C/O ALEXANDRIA REAL ESTATE EQUITIES, INC

26 NORTH EUCLID AVENUE

(Street)

PASADENA CA 91101

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ALEXANDRIA REAL ESTATE EQUITIES, INC. [ ARE ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP - Talent Management

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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	03/13/2026		F		1,087(1)	D	$48.41	22,624	D

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. Represents shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock.

Remarks:

	/s/ Bill Boyle, Attorney-in-Fact	03/13/2026
	** 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.
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.