SEC ownership of Skyline Builders Group Holding Ltd

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002031009.

Comparable stake leader

ASP Isotopes Inc.

Disclosed value leader

ASP Isotopes Inc.

Comparable rows

2/24

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
2 of 24
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
ASP Isotopes Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0002031009
Issuer location
Kowloon Bay

Ownership snapshot

Top shareholders of Skyline Builders Group Holding Ltd (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
ASP Isotopes Inc.
Disclosed value leader
ASP Isotopes Inc.
Comparable rows
2/24
Latest evidence
30 Jun 2026
13D/G 13F 3/4/5 Lead comparable stake: 37% 22 rows are not safely comparable across share classes. 13D/G row: ASP Isotopes Inc. Showing 1-8 of 24 holder rows.

Quick read

ASP Isotopes Inc. leads the comparable SEC ownership view at 37%.

2 of 24 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens ASP Isotopes Inc.'s linked filing trail.
Comparable ownership Top 2
ASP Isotopes Inc. 37%
Philadelphia Financial Management... 8.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 24 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
ASP Isotopes Inc.
13D/G
37%
Reported 13D/G · 29 Aug 2025
$5,609,588
6,164,382 shares
$0 29 Aug 2025
Philadelphia Financial Management of San Francisco, LLC
13F 13D/G
Company
8.2%
Reported 13D/G · 30 Jun 2026
$3,205,214
1,037,286 shares
— 30 Jun 2026
Ngo Chiu Lam
3/4/5
CEO, Director
—
denominator unverified
$1,060,771
318,550 shares
— 18 Mar 2026
PEAK6 LLC
13F
Company
13F
—
denominator unverified
$937,957
303,546 shares
— 30 Jun 2026
Rathbones Group PLC
13F
Company
13F
—
denominator unverified
$884,707
286,313 shares
— 30 Jun 2026
MERCER GLOBAL ADVISORS INC /ADV
13F
Company
13F
—
denominator unverified
$223,741
72,408 shares
— 30 Jun 2026
Cambridge Investment Research Advisors, Inc.
13F
Company
13F
—
denominator unverified
$170,000
55,098 shares
— 30 Jun 2026
Wealthspire Advisors, LLC
13F
Company
13F
—
denominator unverified
$119,577
38,698 shares
— 30 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 29 Oct 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-6 of 6 reporting-owner rows connected to Skyline Builders Group Holding Ltd. Open a relationship link for the CIK-to-CIK filing trail.

Rows
6
Largest Forms 3/4/5 holder
Ngo Chiu Lam
Net 12M change
$0
Latest report
15 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Ngo Chiu Lam CEO, Director $1,060,771 Mixed 18 Mar 2026
Chun Kit Yu Director Mixed 23 Jan 2025
Vuk Jeremic Director Mixed 31 Mar 2026
Chun Man Lo Chief Financial Officer Mixed 18 Mar 2026
John Melkon Director Mixed 15 Jul 2026
Sze Man Chan Interim CFO Mixed 01 Jun 2026

Recent insider transactions for Skyline Builders Group Holding Ltd

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Ngo Chiu Lam SKBL Class A Ordinary Shares 0 318,550 18 Mar 2026 Mr. Lam is the sole owner of Supreme Development (BVI) Holdings Limited.
* marks a reported price that did not pass the local price check.
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