EDGAR Verified
Primary Source · SEC.gov

Middlesex SG Sidecar LLC

Co-Investment Vehicle2026 vintage506(b)
Latest signalNew Form D filerForm D · 2026-10-14Last filing 2026-10-14

Raised

$11M

Investors

40

Min Invest

$250,000

AltStreet Analysis

·

Generated from EDGAR primary sources

Middlesex SG Sidecar LLC is a Delaware-formed entity that filed a Form D for an equity offering under the Rule 506(b) exemption, reporting $10.7M raised from 40 investors with a $250K minimum investment. The filing lists four executive officers (Brian Milberg, David Friedman, Blake Chroman, Zach McHugh) and has not been matched to a known sponsor platform in the AltStreet database.

This is a mid-sized alternative investment vehicle using the standard private-placement exemption (506(b)) common among single-deal or co-investment structures, with a $250K minimum that sits within the typical range for accredited-investor sidecar vehicles. The investor count (40) relative to capital raised ($10.7M) implies an average check near the stated minimum, consistent with a club-style or sidecar co-investment offering rather than a broadly syndicated fund.

Data Flags

First Sale DateFirst sale date is not disclosed despite $10.7M already reported as sold to 40 investors on a sub-$100M raise, which is inconsistent with a pre-open filing and typically expected to be reported.
generalNo parent platform or related entities were identified for this manager, limiting ability to assess this filing against sibling vehicles.

EDGAR Filing Data

Form D — Primary Source

View on SEC.gov
CIK Number0002159552
Entity NameMiddlesex SG Sidecar LLC
ExemptionRule 506(b)
What the exemption meansRule 506(b) of Regulation D: securities may be sold to an unlimited number of accredited investors and up to 35 non-accredited investors who meet the rule's sophistication standard, without general solicitation or advertising.
Entity TypeLimited Liability Company
Jurisdiction of OrganizationDelaware
Year Organized2026
Issuer Address10 W. Forest Avenue, Englewood, NJ 07631
Phone(929) 226-6900
Industry / Fund TypeCommercial
Securities TypeEquity
First Sale Date—
Filing DateOctober 14, 2026
Accession Number0002159552-26-000001
Total Offering Amount$10,745,000
Total Amount Sold$10,745,000
Amount Remaining$0
Total Investors40
Non-Accredited InvestorsNone
Minimum Investment$250,000
Offering DurationOne year or less
Sales Commissions$0
Finders' Fees$0
Proceeds to Related Persons$0
Revenue RangeDecline to Disclose
State (Issuer Address)NJ
Amendment CountOriginal filing only
Signed ByBrian D Milberg, Manager

Filings on Record

Every filing AltStreet's ledger holds for this CIK, newest first. Each opens the SEC archive folder.

In the Terminal

Filing events

1

latest Oct 14, 2026

Critical / warning

0 / 0

0 watch · 1 info

Statements extracted

0

none on file

NAV prints

0

none on file

Offering chains

1

closed

Latest event New filer · Oct 14, 2026

SEC.gov
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Investor

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  • 1 offering timeline: velocity, share raised, first-sale lag, stalled flags

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Related Persons (Form D)

Executive officers, directors, and promoters listed on the SEC Form D filing. Source: SEC.gov.

Brian Milberg

Executive Officer · Englewood, NJ

David Friedman

Executive Officer · Englewood, NJ

Blake Chroman

Executive Officer · Englewood, NJ

Zach McHugh

Executive Officer · Englewood, NJ

Questions About Middlesex SG Sidecar LLC

Each answer is built from the values on the SEC filing and the AltStreet ledger, not from the issuer's marketing.

What is Middlesex SG Sidecar LLC?

Middlesex SG Sidecar LLC is a Delaware limited liability company organized in 2026 that filed a Form D with the SEC on October 14, 2026 in the Commercial industry group. The filing claims Rule 506(b) for an offering of equity.

Is Middlesex SG Sidecar LLC legit?

AltStreet does not rate legitimacy; it reports the public record. Middlesex SG Sidecar LLC filed a Form D with the SEC on October 14, 2026 claiming Rule 506(b). A Form D is a notice of an exempt offering, not a review or approval of it. The newest notice reports $10,745,000 sold to 40 investors. AltStreet's enforcement record (SEC, FINRA and state actions) shows no action naming the issuer as of today. Before investing, confirm the filing on EDGAR, check the seller's registration on FINRA BrokerCheck, and read the offering documents, which a Form D does not include.

Is Middlesex SG Sidecar LLC registered with or approved by the SEC?

No. A Form D is a notice that an issuer is selling securities under an exemption from registration, and the SEC does not review, approve, or pass on the merits of the offering. The filing shows that Middlesex SG Sidecar LLC claimed Rule 506(b) and disclosed the items the form requires, such as the amount sold, the minimum investment, related persons, and anyone paid to sell the securities. It does not verify the issuer's claims or its business.

How much has Middlesex SG Sidecar LLC raised?

Middlesex SG Sidecar LLC reported $10,745,000 sold from 40 investors of a $10,745,000 total offering as of the Form D filed October 14, 2026.

Who can invest in Middlesex SG Sidecar LLC?

The offering relies on Rule 506(b), which permits sales to accredited investors and to no more than 35 non-accredited investors who meet a sophistication standard, and prohibits general solicitation. The filing reports no non-accredited investors. The minimum investment accepted from an outside investor is $250,000.

What is the minimum investment in Middlesex SG Sidecar LLC?

The Form D lists $250,000 as the minimum investment accepted from any outside investor as of October 14, 2026. Issuers can waive their own minimums, and the figure does not include fees.

Who is selling Middlesex SG Sidecar LLC and how are they paid?

The Form D names no recipient of sales compensation, which usually means the issuer or its affiliates are placing the securities directly. Sales commissions are reported as $0 and finders' fees as $0. Form D allows these to be estimates.

Who is behind Middlesex SG Sidecar LLC?

The Form D lists 4 related persons: Brian D Milberg, executive officer; David L Friedman, executive officer; Blake Chroman, executive officer; Zach McHugh, executive officer. Form D Item 3 requires executive officers, directors, and promoters of the issuer to be listed.

Where is Middlesex SG Sidecar LLC located?

The issuer's address on its SEC filings is 10 W. Forest Avenue, Englewood, NJ 07631. Its phone number of record is 929.226.6900. It is organized under the laws of Delaware.

How long is the Middlesex SG Sidecar LLC offering open?

The issuer indicated that the offering is not intended to last more than one year. An issuer must amend its Form D annually while a continuing offering stays open, and no amendment is on record yet.

What is Middlesex SG Sidecar LLC's revenue?

The issuer declined to disclose its revenue range on the Form D, which the form permits.

Is this your offering?

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Data Methodology

Capital raise figures, investor counts, and filing dates are sourced directly from SEC EDGAR Form D primary documents via the SEC EDGAR submissions API and full-text search index. EDGAR entity profiles and deal-level data are reviewed by AltStreet analysts with backgrounds in corporate finance and securities law — cross-referenced against offering circulars, audited financial statements, and primary regulatory filings before publication. Platform-provided information, where present, is clearly labeled and does not affect EDGAR data or AltStreet editorial coverage. Platforms may request factual corrections for demonstrable inaccuracies by contacting [email protected]. This page does not constitute investment advice.