organization · Reporting owner

Blackstone Treasury Holdings III L.L.C.

Disclosed activity across 1 company

Tapewire entity: 14630
SEC CIK: 0001717275

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Blackstone Digital Infrastructure Trust Inc.BXDC · Entity 4495	10% owner	May 15, 2026	May 19, 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.

Blackstone Digital Infrastructure Trust Inc.

Report date May 15, 2026 · Filed May 19, 2026

Jointly reported with Blackstone Holdings III L.P., Blackstone Holdings III GP L.P., Blackstone Holdings III GP Management L.L.C., Blackstone Inc., Blackstone Group Management L.L.C., SCHWARZMAN STEPHEN A

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee footnotes	375,000	Reported balance After 2026-05-15 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-05-15 · Purchase · Acquired 375,000 · Balance 375,000 F1: Reflects shares of common stock, par value $0.01 ("Common Stock") acquired in a directed share program in connection with the Issuer's initial public offering. F2: Reflects Common Stock of the Issuer directly held by Stephen A. Schwarzman. F4: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. F5: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.
Common StockSEC Table I · non-derivative	IndirectSee footnotes	9,111,800	Reported balance After 2026-05-15 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-05-15 · Purchase · Acquired 9,111,795 · Balance 9,111,800 F3: Reflects Common Stock of the Issuer directly held by Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III L.P. is the managing member of Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III GP L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. F4: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. F5: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

Filing footnotes · ownership attribution and instrument terms

F1: Reflects shares of common stock, par value $0.01 ("Common Stock") acquired in a directed share program in connection with the Issuer's initial public offering.

F2: Reflects Common Stock of the Issuer directly held by Stephen A. Schwarzman.

F3: Reflects Common Stock of the Issuer directly held by Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III L.P. is the managing member of Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III GP L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F4: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

F5: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

Transaction history

JSON API

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 date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
May 15, 2026 Filed May 19, 2026 20:30 UTC	Blackstone Digital Infrastructure Trust Inc. BXDC · Entity 4495	PurchaseCommon Stock	9,111,795	$20.00	$182,235,900.00	Disclosure SEC source: 0001193125-26-230882 · ownership.xml · nonDerivative · entry 2 Blackstone Treasury Holdings III L.L.C. · CIK 0001717275 · 10% owner Blackstone Holdings III L.P. · CIK 0001404073 · 10% owner Blackstone Holdings III GP L.P. · CIK 0001478809 · 10% owner Blackstone Holdings III GP Management L.L.C. · CIK 0001478815 · 10% owner Blackstone Inc. · CIK 0001393818 · 10% owner Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 9,111,800 F3 · ownership.nature: Reflects Common Stock of the Issuer directly held by Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III L.P. is the managing member of Blackstone Treasury Holdings III L.L.C. Blackstone Holdings III GP L.P. is the general partner of Blackstone Holdings III L.P. Blackstone Holdings III GP Management L.L.C. is the general partner of Blackstone Holdings III GP L.P. Blackstone Inc. is the sole member of Blackstone Holdings III GP Management L.L.C. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. F4 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. F5 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Read SEC document
May 15, 2026 Filed May 19, 2026 20:30 UTC	Blackstone Digital Infrastructure Trust Inc. BXDC · Entity 4495	PurchaseCommon Stock	375,000	$20.00	$7,500,000.00	Disclosure SEC source: 0001193125-26-230882 · ownership.xml · nonDerivative · entry 1 Blackstone Treasury Holdings III L.L.C. · CIK 0001717275 · 10% owner Blackstone Holdings III L.P. · CIK 0001404073 · 10% owner Blackstone Holdings III GP L.P. · CIK 0001478809 · 10% owner Blackstone Holdings III GP Management L.L.C. · CIK 0001478815 · 10% owner Blackstone Inc. · CIK 0001393818 · 10% owner Blackstone Group Management L.L.C. · CIK 0001404071 · 10% owner SCHWARZMAN STEPHEN A · CIK 0001070844 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnotes Disclosed balance after: 375,000 F1 · kind: Reflects shares of common stock, par value $0.01 ("Common Stock") acquired in a directed share program in connection with the Issuer's initial public offering. F2 · ownership.nature: Reflects Common Stock of the Issuer directly held by Stephen A. Schwarzman. F4 · ownership.nature: Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose. F5 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. 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.