Form D · Other Investment Fund

Blackstone Infrastructure Partners (Supplemental Account II) L.P.

New York, NY · CIK 0001743614

Offering snapshot reported Oct 22, 2026 · SEC filing

Reported sold: $566M
Investors reported: 7
Minimum accepted: $0
First sale: Jul 16, 2018

Fundraising history

Reported sold

Dates are filing dates, not cash receipt dates. Decreases are reported revisions, not evidence of withdrawals. Separate offering histories are not added together.

What changed?

Latest filing versus its linked predecessor, where available.

Reported sold$532,672,324 → $566,012,260
Reported investors5 → 7

Filing history

Scroll to see all columns →

Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Oct 22, 2026	Amendment	$566,012,260	$33,339,936vs Oct 31, 2025	7	SEC filing
Oct 31, 2025	Amendment	$532,672,324	$22,572,324vs Jun 15, 2021	5	SEC filing
Jun 15, 2021	Amendment	$510,100,000	No comparison	Not reported	SEC filing
Jul 24, 2019	Amendment	$10,100,000	No comparison	5	SEC filing
Jun 25, 2018	Initial	Yet to sell	No comparison	0	SEC filing

Offering details

Securities: Pooled investment fund
Exemptions: 06b, 3C, 3C.7
Duration over one year: Yes
Business combination: No

Sales commissions: $0
Finders' fees: $0
Form D file number: 021-315344

Total Amount Sold includes sponsor's commitment.

Source: Form D, filed Oct 22, 2026. Minimum accepted may differ from a standard advertised minimum.

Fund connections

The linked fund shows its most recently reported ADV details.

Matched by reported Form D file number

BLACKSTONE INFRASTRUCTURE PARTNERS (SUPPLEMENTAL ACCOUNT II) L.P.

Investment adviser: BLACKSTONE INFRASTRUCTURE ADVISORS L.L.C.

Gross asset value: $779M
Beneficial owners: 6
ADV minimum commitment: $0

Reported in Form ADV on May 26, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator SEI GLOBAL SERVICES INC OAKS, Pennsylvania, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP NEW YORK, New York, United States

Custodian MEDIOBANCA - BANCA DI CREDITO FINANZIARIO SPA MILAN, Italy Related to adviser: No

Custodian MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED SAN FRANCISCO, California, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

MEDIOBANCA - BANCA DI CREDITO FINANZIARIO SPA
LEI PSNL19R2RXX5U3QWHI44

MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
SEC 8-7221 · LEI 8NAV47T0Y26Q87Y0QP81

Filing source

Form ADV 2107581 · May 26, 2026 · Schedule D 7.B.(1), fund 805-8718547368

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
Name	Reported role
N/A Bia Gp L.L.C.	Promoter
N/A Bia Gp L.P.	Promoter
N/A Blackstone Infrastructure Advisors L.L.C.	Promoter
N/A Blackstone Infrastructure Associates L.P.	Promoter
N/A Blackstone Infrastructure Associates Non Eci L.P.	Promoter
Tia Breakley	Executive
Sean Klimczak	Executive
Michael Knauss	Executive
Eric Liaw	Executive
Christopher Placca	Executive
Omar Rehman	Executive
Joseph Rocco	Executive
Vikrant Sawhney	Executive
Paul Schlaack	Executive
Kathleen Skero	Executive
Matthew Skurbe	Executive
Christopher Striano	Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

345 Park Avenue
New York, NY, 10154