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Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 23, 2026, 9:16 PM ET

Sponsor Check › Blackstone Infrastructure › Issuer

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

Limited Partnership · organized in DELAWARE · formed Over five years ago · NEW YORK, NY · SEC CIK 1743614

Part of sponsor group: Blackstone Infrastructure (49 issuers, 121 filings) · grouped because: shared people, shared management entity, similar issuer names · confidence 94% · Not the same sponsor? Request a correction

5Form D filings
$566,012,260max total sold reported
7investors (max reported)
2018–2026filing years
0new offerings, last 12 mo

Data last updated: Oct 23, 2026, 5:45 PM ET · Latest filing by this issuer: Oct 22, 2026 · Courts (RECAP) last checked: not yet · SEC enforcement last checked: not yet

Key records

The five facts investors ask about first. Each section states what was searched and when. Items still in human review are not shown.

1. Lawsuits

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Sources to be searched: CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Search queued. Results are added automatically; check back later or follow this page to be notified.

2. Regulatory actions

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Sources to be searched: SEC litigation releases and administrative proceedings — respondent names in the sec.gov index titles (30,205 releases, 1995-09-19 to 2026-10-23); release text is read only to confirm a candidate. Names that appear only in the body of a release are not found. State securities regulator actions: not yet searched. · Search queued. Results are added automatically; check back later or follow this page to be notified.

3. Bankruptcies

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Sources to be searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Search queued. Results are added automatically; check back later or follow this page to be notified.

4. Differences between public sources

Coming soon.

What will be compared: what the sponsor says publicly (website, marketing materials, claimed profile) against what public records show — SEC Form D filings, Form ADV adviser registration, and state business records. Every comparison is reviewed by a person before it is published.

No comparisons published yet.

Sources to be compared: sponsor public claims · SEC Form D · SEC Form ADV (IAPD) · state business records · As of Oct 23, 2026, 9:16 PM ET.

5. Money to insiders and sales commissions

0 of 1 offering report sales commissions; 0 report finder's fees; 0 report proceeds to related persons.

SourceOffering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell it
EDGAR ↗Oct 22, 2026 D/A
File 021-315344
$0$0$0None listed

As reported by the issuer on Form D (Items 12–15), latest filing per offering. "To insiders" = gross proceeds used for payments to executive officers, directors or promoters. "—" = not reported on that filing. Amounts marked (est.) were reported as estimates.

Offerings (SEC Form D)

Each filing as reported by the issuer. Open a row for the full plain-English detail.

Oct 22, 2026 D/A Pooled Investment Fund — $566,012,260 sold of Indefinite · 7 investors EDGAR ↗
FilingForm D/A (amendment) filed Oct 22, 2026 · amends 0001743614-25-000003 ↗
SEC file no. 021-315344 · accession 0001743614-26-000002
Raise progress$566,012,260 sold of Indefinite offered · Indefinite remaining
Total Amount Sold includes sponsor's commitment.
Filing timingDate of first sale: Jul 16, 2018 · Form D filed: Oct 22, 2026 (3020 days after first sale)
Rule: a Form D is generally due within 15 days after the first sale. Both dates are shown as reported; no conclusion is drawn.
Time since first sale3,022 days (8.3 years)
Annual amendmentsIssuer reported the offering may last more than one year. This filing is an amendment dated Oct 22, 2026.
Rule: an ongoing offering generally files an amendment at least annually. Dates shown as reported; no conclusion is drawn.
Investors7 total · issuer reported no non-accredited investors
Exemption claimedRule 506(b) — no general advertising; up to 35 non-accredited investors allowed; Investment Company Act 3C exclusion; Investment Company Act 3C.7 exclusion
Minimum investment accepted$0
Securities offeredPooled investment fund interests
Industry / issuer sizePooled Investment Fund (Other Investment Fund) · net asset value range: Decline to Disclose
Who is paid to sell itNo sales compensation recipients listed on this filing.
Money to insidersSales commissions: $0 · Finder's fees: $0 · Proceeds to officers, directors, promoters: $0
Signed byMichael Knauss, Managing Director and Chief Compliance Officer (Oct 22, 2026)
Changes vs prior filingtotal sold: $532,672,324 → $566,012,260
investors: 5 → 7
Compared with the D/A filed Oct 31, 2025 (EDGAR ↗). Amendment history as filed; no conclusion is drawn.
Market contextMinimum investment: $0. Typical range for similar offerings: $1,000–$100,000.
Offering size: Indefinite. Typical range: $155,000–$5,250,000.
Investors: 7. Typical range: 4–27.
"Similar" = Pooled Investment Fund offerings claiming 506(b) filed in the last 5 years (83,801 filings); ranges are the middle half (25th–75th percentile). No ranking or score.
SourceThis filing on SEC EDGAR ↗ · retrieved from the EDGAR daily index
Oct 31, 2025 D/A Pooled Investment Fund — $532,672,324 sold of Indefinite · 5 investors EDGAR ↗
FilingForm D/A (amendment) filed Oct 31, 2025 · amends 0001743614-21-000001 ↗
SEC file no. 021-315344 · accession 0001743614-25-000003
Raise progress$532,672,324 sold of Indefinite offered · Indefinite remaining
Total Amount Sold includes sponsor's commitment.
Filing timingDate of first sale: Jul 16, 2018 · Form D filed: Oct 31, 2025 (2664 days after first sale)
Rule: a Form D is generally due within 15 days after the first sale. Both dates are shown as reported; no conclusion is drawn.
Time since first sale3,022 days (8.3 years)
Annual amendmentsIssuer reported the offering may last more than one year. This filing is an amendment dated Oct 31, 2025.
Rule: an ongoing offering generally files an amendment at least annually. Dates shown as reported; no conclusion is drawn.
Investors5 total · issuer reported no non-accredited investors
Exemption claimedRule 506(b) — no general advertising; up to 35 non-accredited investors allowed; Investment Company Act 3C exclusion; Investment Company Act 3C.7 exclusion
Minimum investment accepted$0
Securities offeredPooled investment fund interests
Industry / issuer sizePooled Investment Fund (Other Investment Fund) · net asset value range: Decline to Disclose
Who is paid to sell itNo sales compensation recipients listed on this filing.
Money to insidersSales commissions: $0 · Finder's fees: $0 · Proceeds to officers, directors, promoters: $0
Signed byMichael Knauss, Managing Director and Chief Compliance Officer (Oct 30, 2025)
Changes vs prior filingtotal sold: $510,100,000 → $532,672,324
investors: 6 → 5
Compared with the D/A filed Jun 15, 2021 (EDGAR ↗). Amendment history as filed; no conclusion is drawn.
Market contextMinimum investment: $0. Typical range for similar offerings: $1,000–$100,000.
Offering size: Indefinite. Typical range: $155,000–$5,250,000.
Investors: 5. Typical range: 4–27.
"Similar" = Pooled Investment Fund offerings claiming 506(b) filed in the last 5 years (83,801 filings); ranges are the middle half (25th–75th percentile). No ranking or score.
SourceThis filing on SEC EDGAR ↗ · retrieved from the SEC Form D bulk data set
Jun 15, 2021 D/A Pooled Investment Fund — $510,100,000 sold of Indefinite · 6 investors EDGAR ↗
FilingForm D/A (amendment) filed Jun 15, 2021 · amends 0001743613-19-000002 ↗
SEC file no. 021-315344 · accession 0001743614-21-000001
Raise progress$510,100,000 sold of Indefinite offered · Indefinite remaining
Total Amount Sold includes sponsor's commitment.
Filing timingDate of first sale: Jul 16, 2018 · Form D filed: Jun 15, 2021 (1065 days after first sale)
Rule: a Form D is generally due within 15 days after the first sale. Both dates are shown as reported; no conclusion is drawn.
Time since first sale3,022 days (8.3 years)
Annual amendmentsIssuer reported the offering may last more than one year. This filing is an amendment dated Jun 15, 2021.
Rule: an ongoing offering generally files an amendment at least annually. Dates shown as reported; no conclusion is drawn.
Investors6 total · issuer reported no non-accredited investors
Exemption claimedRule 506(b) — no general advertising; up to 35 non-accredited investors allowed; Investment Company Act 3C exclusion; Investment Company Act 3C.7 exclusion
Minimum investment accepted$0
Securities offeredPooled investment fund interests
Industry / issuer sizePooled Investment Fund (Other Investment Fund) · net asset value range: Decline to Disclose
Who is paid to sell itNo sales compensation recipients listed on this filing.
Money to insidersSales commissions: $0 · Finder's fees: $0 · Proceeds to officers, directors, promoters: $0
Signed byOmar Rehman, Managing Director and Chief Compliance Officer (Jun 15, 2021)
Changes vs prior filingtotal sold: $10,100,000 → $510,100,000
investors: 5 → 6
Compared with the D/A filed Jul 24, 2019 (EDGAR ↗). Amendment history as filed; no conclusion is drawn.
Market contextMinimum investment: $0. Typical range for similar offerings: $1,000–$100,000.
Offering size: Indefinite. Typical range: $155,000–$5,250,000.
Investors: 6. Typical range: 4–27.
"Similar" = Pooled Investment Fund offerings claiming 506(b) filed in the last 5 years (83,801 filings); ranges are the middle half (25th–75th percentile). No ranking or score.
SourceThis filing on SEC EDGAR ↗ · retrieved from the SEC Form D bulk data set
Jul 24, 2019 D/A Pooled Investment Fund — $10,100,000 sold of Indefinite · 5 investors EDGAR ↗
FilingForm D/A (amendment) filed Jul 24, 2019 · amends 0001743614-18-000001 ↗
SEC file no. 021-315344 · accession 0001743613-19-000002
Raise progress$10,100,000 sold of Indefinite offered · Indefinite remaining
Total Amount Sold includes sponsor's commitment.
Filing timingDate of first sale: Jul 16, 2018 · Form D filed: Jul 24, 2019 (373 days after first sale)
Rule: a Form D is generally due within 15 days after the first sale. Both dates are shown as reported; no conclusion is drawn.
Time since first sale3,022 days (8.3 years)
Annual amendmentsIssuer reported the offering may last more than one year. This filing is an amendment dated Jul 24, 2019.
Rule: an ongoing offering generally files an amendment at least annually. Dates shown as reported; no conclusion is drawn.
Investors5 total · issuer reported no non-accredited investors
Exemption claimedRule 506(b) — no general advertising; up to 35 non-accredited investors allowed; Investment Company Act 3C exclusion; Investment Company Act 3C.7 exclusion
Minimum investment accepted$0
Securities offeredPooled investment fund interests
Industry / issuer sizePooled Investment Fund (Other Investment Fund) · net asset value range: Decline to Disclose
Who is paid to sell itNo sales compensation recipients listed on this filing.
Money to insidersSales commissions: $0 · Finder's fees: $0 · Proceeds to officers, directors, promoters: $0
Signed byTia Breakley, Managing Director (Jul 24, 2019)
Changes vs prior filingtotal sold: $0 → $10,100,000
investors: 0 → 5
Compared with the D filed Jun 25, 2018 (EDGAR ↗). Amendment history as filed; no conclusion is drawn.
Market contextMinimum investment: $0. Typical range for similar offerings: $1,000–$100,000.
Offering size: Indefinite. Typical range: $155,000–$5,250,000.
Investors: 5. Typical range: 4–27.
"Similar" = Pooled Investment Fund offerings claiming 506(b) filed in the last 5 years (83,801 filings); ranges are the middle half (25th–75th percentile). No ranking or score.
SourceThis filing on SEC EDGAR ↗ · retrieved from the SEC Form D bulk data set
Jun 25, 2018 D Pooled Investment Fund — $0 sold of Indefinite · 0 investors EDGAR ↗
FilingForm D filed Jun 25, 2018
SEC file no. 021-315344 · accession 0001743614-18-000001
Raise progress$0 sold of Indefinite offered · Indefinite remaining
Filing timingDate of first sale: Yet to occur · Form D filed: Jun 25, 2018
Rule: a Form D is generally due within 15 days after the first sale. Both dates are shown as reported; no conclusion is drawn.
Annual amendmentsIssuer reported the offering may last more than one year.
Rule: an ongoing offering generally files an amendment at least annually. Dates shown as reported; no conclusion is drawn.
Investors0 total · issuer reported no non-accredited investors
Exemption claimedRule 506(b) — no general advertising; up to 35 non-accredited investors allowed; Investment Company Act 3C exclusion; Investment Company Act 3C.7 exclusion
Minimum investment accepted$0
Securities offeredPooled investment fund interests
Industry / issuer sizePooled Investment Fund (Other Investment Fund) · net asset value range: Decline to Disclose
Who is paid to sell itNo sales compensation recipients listed on this filing.
Money to insidersSales commissions: $0 · Finder's fees: $0 · Proceeds to officers, directors, promoters: $0
Signed byTia Breakley, Managing Director (Jun 25, 2018)
Market contextMinimum investment: $0. Typical range for similar offerings: $1,000–$100,000.
Offering size: Indefinite. Typical range: $155,000–$5,250,000.
Investors: 0. Typical range: 4–27.
"Similar" = Pooled Investment Fund offerings claiming 506(b) filed in the last 5 years (83,801 filings); ranges are the middle half (25th–75th percentile). No ranking or score.
SourceThis filing on SEC EDGAR ↗ · retrieved from the SEC Form D bulk data set

All Form D filings for this CIK on SEC EDGAR ↗. History: 0 new offerings in the last 12 months · most recent filing Oct 22, 2026.

Key people (related persons as listed on Form D)

NameRelationshipAddress stateOn filingsAlso listed on
BIA GP L.P. entityPromoter
General Partner of the GP of the Issuer (the "GP of the GP")
NYJun 15, 2021 → Oct 22, 202622 other issuers
Blackstone Infrastructure Advisors L.L.C. entityPromoter
Investment Advisor
NYJun 25, 2018 → Oct 22, 202625 other issuers
Blackstone Infrastructure Associates Non-ECI L.P. entityPromoter
General Partner of the Issuer (the "GP")
NYJun 15, 2021 → Oct 22, 202616 other issuers
Christopher PlaccaExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 25, 2018 → Oct 22, 202642 other issuers
Christopher StrianoExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 25, 2018 → Oct 22, 202660 other issuers
Joseph RoccoExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYOct 22, 202627 other issuers
Michael KnaussExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYOct 31, 2025 → Oct 22, 202620 other issuers
Paul SchlaackExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 15, 2021 → Oct 22, 202632 other issuers
Sean KlimczakExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 25, 2018 → Oct 22, 202634 other issuers
Vikrant SawhneyExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 25, 2018 → Oct 22, 202660 other issuers
BIA GP L.L.C. entityPromoter
General Partner of the GP of the Issuer (the "GP of the GP")
NYJun 25, 2018 → Oct 31, 202522 other issuers
Eric LiawExecutive Officer
Executive Officer of the General Partner of the GP of the GP
NYJun 15, 2021 → Oct 31, 202534 other issuers
Omar RehmanExecutive Officer
Of the General Partner of the GP of the GP
NYJun 15, 202132 other issuers
Blackstone Infrastructure Associates L.P. entityPromoter
"General Partner of the Issuer (the ""GP"")"
NYJun 25, 2018 → Jul 24, 20197 other issuers
Matthew SkurbeExecutive Officer
Of the General Partner of the GP of the GP
NYJun 25, 2018 → Jul 24, 201914 other issuers
Tia BreakleyExecutive Officer
Of the General Partner of the GP of the GP
NYJun 25, 2018 → Jul 24, 20199 other issuers
Kathleen SkeroExecutive Officer
Of the General Partner of the GP of the GP
NYJun 25, 201810 other issuers

Executive officers, directors and promoters as self-reported by the issuer. Licensed persons: FINRA BrokerCheck ↗ · SEC IAPD ↗.

Connections

Other issuers listing the same people:

Shared address: this business address appears on filings for 614 other issuers. Stated as a count only — many addresses are shared office buildings or registered agents.

Adviser registration (Form ADV)

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Public profiles

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