Comparable stake leader
Clarence E. Smith
SEC ownership of ProtoKinetix, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001128189.
Disclosed value leader
Clarence E. Smith
Comparable rows
0/5
Latest evidence
31 Mar 2026
- Public ticker
- PKTX on OTC
- Parsed ownership sources
- 3/4/5 and 13F
- Largest SEC-reported holder
- Clarence E. Smith
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001128189
- Issuer location
- Dalton, OH
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 ProtoKinetix, Inc. (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
Clarence E. Smith
Disclosed value leader
Clarence E. Smith
Comparable rows
0/5
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $720,644
5 rows are not safely comparable across share classes.
Quick read
Clarence E. Smith has the largest disclosed position value at $720.6K.
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 Clarence E. Smith's linked filing trail.
Disclosed position value
Top 4
Clarence E. Smith
$720.6K
Lachlan Grant Young
$150.3K
Michael R. Guzzetta
$11K
Williams Jones Wealth Management,...
$200
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Clarence E. Smith |
3/4/5
President & CEO, Director, 10%+ Owner
|
—
mixed-class rows
|
$720,644
82,564,444 shares
mixed-class rows
|
— | 26 Sep 2024 |
| Lachlan Grant Young |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$150,319
18,021,250 shares
mixed-class rows
|
— | 13 Dec 2022 |
| Michael R. Guzzetta |
3/4/5
CFO
|
—
mixed-class rows
|
$11,046
3,736,369 shares
mixed-class rows
|
— | 26 Oct 2023 |
| Williams Jones Wealth Management, LLC. |
13F
Company
|
—
class O/S missing
|
$200
20,000 shares
|
— | 31 Mar 2026 |
| Edward P. McDonough |
3/4/5
Director
|
—
class O/S missing
|
—
500,000 shares
|
— | 07 Dec 2022 |
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 08 Jun 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 1-4 of 4 reporting-owner rows connected to ProtoKinetix, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
4
Largest Forms 3/4/5 holder
Clarence E. Smith
Net 12M change
$0
Latest report
26 Sep 2024
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Clarence E. Smith | President & CEO, Director, 10%+ Owner | $720,644 | Mixed | 26 Sep 2024 | ||
| Lachlan Grant Young | 10%+ Owner | $150,319 | Mixed | 13 Dec 2022 | ||
| Michael R. Guzzetta | Cfo | $11,046 | Mixed | 26 Oct 2023 | ||
| Edward P. McDonough | Director | Mixed | 07 Dec 2022 |
Recent insider transactions for ProtoKinetix, Inc.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.