Comparable stake leader
Sidney Chan
SEC ownership of ALR Technologies SG Ltd.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001930419.
Disclosed value leader
—
Comparable rows
0/5
Latest evidence
02 Apr 2026
- Public ticker
- ALRTF on OTC
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Sidney Chan
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
02 Apr 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001930419
- Issuer location
- Singapore, Singapore
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ALR Technologies SG 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
Sidney Chan
Disclosed value leader
—
Comparable rows
0/5
Latest evidence
02 Apr 2026
3/4/5
Some rows are evidence-backed but not safely comparable across classes.
5 rows are not safely comparable across share classes.
Quick read
SEC ownership evidence is available, but the rows are not safely comparable across share classes.
0 of 5 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 Sidney Chan's linked filing trail.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Sidney Chan |
3/4/5
CEO, Director, 10%+ Owner
|
—
class O/S missing
|
—
383,498,482 shares
|
— | 17 Mar 2026 |
| Yuen Shan Kan |
3/4/5
VP, Corporate, Director, 10%+ Owner
|
—
class O/S missing
|
—
383,498,482 shares
|
— | 18 Mar 2026 |
| Peter H. Stafford |
3/4/5
Director
|
—
class O/S missing
|
—
1,500,000 shares
|
— | 18 Mar 2026 |
| Ronald Cheng |
3/4/5
Director
|
—
class O/S missing
|
—
1,205,800 shares
|
— | 18 Mar 2026 |
| Kenneth James Robulak |
3/4/5
Director
|
—
class O/S missing
|
—
1,190,000 shares
|
— | 02 Apr 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
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 04 Aug 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 ALR Technologies SG Ltd.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Sidney Chan
Net 12M change
$0
Latest report
02 Apr 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Sidney Chan | CEO, Director, 10%+ Owner | Mixed | 17 Mar 2026 | |||
| Kenneth James Robulak | Director | Mixed | 02 Apr 2026 | |||
| Yuen Shan Kan | VP, Corporate, Director, 10%+ Owner | Mixed | 18 Mar 2026 | |||
| Peter H. Stafford | Director | Mixed | 18 Mar 2026 | |||
| Benjamin Szeto | Corporate Secretary | Mixed | 18 Mar 2026 | |||
| Ronald Cheng | Director | Mixed | 18 Mar 2026 |
Recent insider transactions for ALR Technologies SG 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kenneth James Robulak | ALRTF | Ordinary Shares | 0 | 1,190,000 | 02 Apr 2026 | Direct | ||||
| Ronald Cheng | ALRTF | Ordinary Shares | 0 | 1,205,800 | 18 Mar 2026 | Direct | ||||
| Peter H. Stafford | ALRTF | Ordinary Shares | 0 | 125,000 | 18 Mar 2026 | By Spouse | ||||
| Peter H. Stafford | ALRTF | Ordinary Shares | 0 | 1,375,000 | 18 Mar 2026 | Direct | ||||
| Yuen Shan Kan | ALRTF | Ordinary Shares | 0 | 189,845,000 | 18 Mar 2026 | Shares owned by my spouse, Sidney Chan | ||||
| Yuen Shan Kan | ALRTF | Ordinary Shares | 0 | 193,653,482 | 18 Mar 2026 | Direct | ||||
| Sidney Chan | ALRTF | Ordinary Shares | 0 | 193,653,482 | 17 Mar 2026 | Shares owned by my spouse, Christine Kan | ||||
| Sidney Chan | ALRTF | Ordinary Shares | 0 | 189,845,000 | 17 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.