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person · Reporting owner

Boss Michael E.

Disclosed activity across 1 company

Tapewire entity
54391
SEC CIK
0002105218

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ALEXANDRIA REAL ESTATE EQUITIES, INC.ARE · Entity 419Co-Regional Market DirectorSeptember 15, 2026September 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ALEXANDRIA REAL ESTATE EQUITIES, INC.

Report date September 15, 2026 · Filed September 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect51,345 Reported balance After 2026-09-15 transaction · row 1
1 source row

Row 1 · 2026-09-15 · Tax withholding · Disposed 1,462 · Balance 51,345

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

Filing footnotes · ownership attribution and instrument terms

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

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 15, 2026 Filed Sep 17, 2026 20:33 UTC ALEXANDRIA REAL ESTATE EQUITIES, INC. ARE · Entity 419 Tax withholdingCommon Stock 1,462 $52.93 $77,383.66
Disclosure

SEC source: 0002105218-26-000010 · wk-form4_1789677183.xml · nonDerivative · entry 1

Boss Michael E. · CIK 0002105218 · Co-Regional Market Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,345

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

Read SEC document
March 31, 2026 Filed Apr 2, 2026 20:46 UTC ALEXANDRIA REAL ESTATE EQUITIES, INC. ARE · Entity 419 GrantCommon Stock 21,543 $0.00 $0.00
Disclosure

SEC source: 0002105218-26-000008 · wk-form4_1775162791.xml · nonDerivative · entry 1

Boss Michael E. · CIK 0002105218 · Co-Regional Market Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,807

Read SEC document
March 13, 2026 Filed Mar 17, 2026 20:56 UTC ALEXANDRIA REAL ESTATE EQUITIES, INC. ARE · Entity 419 Tax withholdingCommon Stock 797 $48.41 $38,582.77
Disclosure

SEC source: 0002105218-26-000006 · wk-form4_1773780988.xml · nonDerivative · entry 1

Boss Michael E. · CIK 0002105218 · Co-Regional Market Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,264

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

Read SEC document
January 23, 2026 Filed Jan 27, 2026 21:44 UTC ALEXANDRIA REAL ESTATE EQUITIES, INC. ARE · Entity 419 Tax withholdingCommon Stock 149 $59.69 $8,893.81
Disclosure

SEC source: 0002105218-26-000004 · wk-form4_1769550260.xml · nonDerivative · entry 2

Boss Michael E. · CIK 0002105218 · Co-Regional Market Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,061

F2 · shares: Represents shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock.

Read SEC document
January 23, 2026 Filed Jan 27, 2026 21:44 UTC ALEXANDRIA REAL ESTATE EQUITIES, INC. ARE · Entity 419 Disposition to issuerCommon Stock 1,759 $0.00 $0.00
Disclosure

SEC source: 0002105218-26-000004 · wk-form4_1769550260.xml · nonDerivative · entry 1

Boss Michael E. · CIK 0002105218 · Co-Regional Market Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,210

F1 · shares: Represents the forfeiture of a portion of a restricted stock award previously reported.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.