Form D · Other Investment Fund

Blackstone Infrastructure Partners (Supplemental Account I-A) L.P.

New York, NY · CIK 0001937830

Offering snapshot reported Jun 15, 2026 · SEC filing

Reported sold
$201M
Indefinite offering
Investors reported
3
Form D · investor count
Minimum accepted
$0
Reported outside-investor minimum
First sale
Jan 24, 2023
As reported in this filing

Fundraising history

Reported sold
Reported amount sold by Form D filing date$0$100M$201MJan 18, 2023Jan 17, 2024: $150,000,000.00Jan 17, 2024Jun 15, 2026: $200,500,000.00Jun 15, 2026

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$150,000,000 → $200,500,000

Filing history

Scroll to see all columns →

FiledFiling typeReported soldChange vs linked filingInvestorsSource
Jun 15, 2026Amendment$200,500,000$50,500,000vs Jan 17, 20243SEC filing
Jan 17, 2024Amendment$150,000,000No comparison3SEC filing
Jan 18, 2023InitialYet to sellNo comparison0SEC 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
021-470969
Total Amount Sold includes the General Partner's commitment as well as sales in parallel funds.

Source: Form D, filed Jun 15, 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 I-A) L.P.

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

Gross asset value
$154M
Beneficial owners
4
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 805-6038053251

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
NameReported 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
Sean Klimczak Executive
Michael Knauss Executive
Eric Liaw Executive
Christopher Placca Executive
Omar Rehman Executive
Joseph Rocco Executive
Vikrant Sawhney Executive
Paul Schlaack Executive
Christopher Striano Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:
345 Park Avenue
New York, NY, 10154