Filer Snapshot

Sidney Chan

CIK 0001308120. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

25

Latest filing

17 Mar 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: Forms 3/4/5 owner position for ALRTF. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

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Populates from the latest parsed 13F information table.

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13D/G large stake

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No recent parsed 13D/G stake row for this CIK.

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Source: SEC Forms 3/4/5

3 filed on 17 Mar 2026 for CIK 0001308120.

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Business address
7400 Beaufont Springs Drive, Suite 300, Suite 300, Richmond, VA, 23225

Filer intelligence

What SEC filings say about Sidney Chan

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

  • Forms 3/4/5 show insider context for ALRTF.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 2 rows

Officer, director, and 10% owner holdings or transactions.

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Forms 3/4/5 insider context

ALRTF

17 Mar 2026 · CEO · 10% owner

Issuer page Owner page

ALRT

07 Nov 2022 · CEO · 10% owner

Issuer page Owner page

Latest update

What changed recently for Sidney Chan

Ownership report updated

Latest ownership report period: 17 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

17 Mar 2026

Page type

Ownership filings

Latest period

17 Mar 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 17 Mar 2026.

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SEC filing record

CIK 0001308120 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
25
First seen
12 Nov 2004
Latest filing
17 Mar 2026
Entity
Individual

Observed form types

3 SC 13D/A SC 13D 4 4/A

CIK-linked evidence first

Sidney Chan SEC filings Sidney Chan owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 24 SEC filings for Sidney Chan.

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3 File 000-56491

3 filing

Filing date
17 Mar 2026
Reporting date
17 Mar 2026
SEC evidence
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SC 13D/A

SC 13D/A filing

Filing date
18 Nov 2022
Reporting date
Not listed
SEC evidence
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SC 13D

SC 13D filing

Filing date
14 Nov 2022
Reporting date
Not listed
SEC evidence
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SC 13D/A

SC 13D/A filing

Filing date
10 Nov 2022
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
09 Nov 2022
Reporting date
07 Nov 2022
SEC evidence
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
08 Jul 2022
Reporting date
07 Jul 2022
SEC evidence
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
14 Dec 2021
Reporting date
10 Dec 2021
SEC evidence
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Next action
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4/A File 000-30414

OWNERSHIP DOCUMENT

Filing date
06 Jul 2021
Reporting date
30 Jun 2021
SEC evidence
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
23 Sep 2020
Reporting date
21 Sep 2020
SEC evidence
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
26 Dec 2019
Reporting date
11 Dec 2019
SEC evidence
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4 File 000-30414

OWNERSHIP DOCUMENT

Filing date
19 Jun 2019
Reporting date
19 Jun 2019
SEC evidence
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Next action
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4/A File 000-30414

OWNERSHIP DOCUMENT

Filing date
17 Apr 2019
Reporting date
12 Apr 2019
SEC evidence
Open document Open filing
Next action
Verify source filing
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