# EDGAR Filing Document

**Accession Number:** 0001777962
**File Stem:** 0001171843-26-004153
**Filing Date:** 2026-6
**Character Count:** 22779
**Document Hash:** 1fb9f5e62efe4d94974533f3c5b38232
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001171843-26-004153.hdr.sgml**: 20260616

**ACCESSION NUMBER**: 0001171843-26-004153

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260616

**DATE AS OF CHANGE**: 20260616

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Edesa Biotech, Inc.
- **CENTRAL INDEX KEY:** 0001540159
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** A1
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-87615
- **FILM NUMBER:** 261095663

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 100 SPY COURT
- **CITY:** MARKHAM
- **PROVINCE COUNTRY:** A6
- **BUSINESS PHONE:** (905) 475-1234

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 100 SPY COURT
- **CITY:** MARKHAM
- **PROVINCE COUNTRY:** A6

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Stellar Biotechnologies, Inc.
- **DATE OF NAME CHANGE:** 20120120
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Nijhawan Pardeep
- **CENTRAL INDEX KEY:** 0001777962

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** C/O EDESA BIOTECH INC.
- **STREET 2:** 100 SPY COURT
- **CITY:** MARKHAM
- **PROVINCE COUNTRY:** A6

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 10)**

**EDESA BIOTECH, INC.**

*(Name of Issuer)*

**Common Shares, no par value per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Dr. Pardeep Nijhawan**<br>c/o Edesa Biotech, Inc.<br>100 Spy Court<br>Markham A6 L3R 5H6<br>(289) 800-9600

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/16/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pardeep Nijhawan Medicine Professional Corporation** | Name of reporting person<br>**Pardeep Nijhawan Medicine Professional Corporation** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ONTARIO** | Citizenship or place of organization<br>**ONTARIO** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1164676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1164676.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1164676.00** | Aggregate amount beneficially owned by each reporting person<br>**1164676.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.2%** | Percent of class represented by amount in Row (11)<br>**11.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** For box 13, based on a total of 9,626,964 Common Shares of the Company outstanding as of June 16, 2026, and an additional 326,560 Common Shares underlying vested warrants and an additional 435,414 Common Shares underlying Series A-1 Preferred Shares that are deemed outstanding with respect to this Reporting Person.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Digestive Health Clinic Inc.** | Name of reporting person<br>**The Digestive Health Clinic Inc.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ONTARIO** | Citizenship or place of organization<br>**ONTARIO** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**32013.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**32013.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**32013.00** | Aggregate amount beneficially owned by each reporting person<br>**32013.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.3%** | Percent of class represented by amount in Row (11)<br>**0.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** For box 13, based on a total of 9,626,964 Common Shares of the Company outstanding as of June 16, 2026.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**1968160 Ontario Inc.** | Name of reporting person<br>**1968160 Ontario Inc.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ONTARIO** | Citizenship or place of organization<br>**ONTARIO** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**53104.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**53104.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**53104.00** | Aggregate amount beneficially owned by each reporting person<br>**53104.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.6%** | Percent of class represented by amount in Row (11)<br>**0.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** For box 13, based on a total of 9,626,964 Common Shares of the Company outstanding as of June 16, 2026.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The New Nijhawan Family Trust 2015** | Name of reporting person<br>**The New Nijhawan Family Trust 2015** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ONTARIO** | Citizenship or place of organization<br>**ONTARIO** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**32609.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**32609.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**32609.00** | Aggregate amount beneficially owned by each reporting person<br>**32609.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.3%** | Percent of class represented by amount in Row (11)<br>**0.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** For box 13, based on a total of 9,626,964 Common Shares of the Company outstanding as of June 16, 2026.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pardeep Nijhawan** | Name of reporting person<br>**Pardeep Nijhawan** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**ISRAEL** | Citizenship or place of organization<br>**ISRAEL** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**927620.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1282402.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**927620.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1282402.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2210022.00** | Aggregate amount beneficially owned by each reporting person<br>**2210022.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**19.99%** | Percent of class represented by amount in Row (11)<br>**19.99%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Boxes 8 and 10, consists of 1,164,676 Common Shares beneficially owned by Pardeep Nijhawan Medicine Professional Corporation, 32,013 Common Shares beneficially owned by The Digestive Health Clinic Inc., 53,104 Common Shares beneficially owned by 1968160 Ontario Inc. and 32,609 Common Shares beneficially owned by The New Nijhawan Family Trust 2015. For box 13, based on a total of 9,626,964 Common Shares of the Company outstanding as of June 16, 2026, an additional 56,875 Common Shares underlying vested share options or underlying share options that will vest within 60 days of June 16, 2026, an additional 471,818 Common Shares underlying vested restricted stock units or restricted stock units that will vest within 60 days of June 16, 2026, an additional 326,560 Common Shares underlying vested warrants, an additional 435,414 Common Shares underlying Series A-1 Preferred Shares and an additional 136,833 Common Shares underlying Series B-1 Preferred Shares that are beneficially owned and deemed outstanding with respect to this Reporting Person. Excludes Common Shares underlying Series B-1 Preferred Shares held by Pardeep Nijhawan which are subject to a 19.99% beneficial ownership blocker, Common Shares underlying restricted stock units held by this Reporting Person that will not vest within 60 days of June 16, 2026 and Common Shares underlying share options held by this Reporting Person that will not vest within 60 days of June 16, 2026. The Reporting Person will not have the right to convert any portion of its Series B-1 Preferred Shares if, together with its affiliates, it would beneficially own in excess of 19.99% of the number of Common Shares outstanding immediately after giving effect to such conversion.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Shares, no par value per share

**(b) Name of Issuer:**
EDESA BIOTECH, INC.

**(c) Address of Issuer's Principal Executive Offices:**
100 Spy Court, Markham, A6, L3R 5H6

This Amendment No. 10 ("Amendment No. 10") amends and supplements the statement on Schedule 13D jointly filed by (i) Pardeep Nijhawan Medicine Professional Corporation, formed in Ontario, Canada, (ii) The Digestive Health Clinic Inc., formed in Ontario, Canada, (iii) 1968160 Ontario Inc., an Ontario, Canada corporation (iv) The New Nijhawan Family Trust 2015, an Ontario, Canada trust and (v) Dr. Pardeep Nijhawan, an individual on June 17, 2019, as amended by Amendment No. 1 filed on August 19, 2019, as further amended by Amendment No. 2 filed on January 16, 2020, as further amended by Amendment No. 3 filed on September 18, 2020, as further amended by Amendment No. 4 filed on November 8, 2022, as further amended by Amendment No. 5 filed on August 21, 2023, as further amended by Amendment No. 6 filed on January 16, 2024, as further amended by Amendment No. 7 filed on November 1, 2024, as further amended by Amendment No. 8 filed on February 14, 2025, as further amended by Amendment No. 9 filed on March 2, 2026, (as so amended and supplemented, the "Schedule 13D"), with respect to the common shares, no par value per share (the "Common Shares") of Edesa Biotech, Inc., a British Columbia corporation (the "Company" or the "Issuer"). Except as expressly amended by this Amendment No. 10, the Schedule 13D remains in full force and effect. The information set forth in response to each separate Item below shall be deemed to be a response to all Items where such information is relevant.

**Item 5. Interest in Securities of the Issuer**

**(a)**
As of the date hereof, Pardeep Nijhawan may be deemed to be the beneficial owner of an aggregate of 2,210,022 Common Shares, comprised of: (i) sole voting and dispositive power of 927,620 Common Shares, comprised of: (a) 262,094 Common Shares, (b) 471,818 Common Shares underlying vested restricted stock units or restricted stock units that will vest within 60 days of June 16, 2026, (c) 56,875 Common Shares underlying vested share options or underlying share options that will vest within 60 days of June 16, 2026 and (d) 136,833 Common Shares underlying Series B-1 Preferred Shares that are beneficially owned and deemed outstanding with respect to this Reporting Person; and (ii) shared voting and dispositive power of 1,282,402 Common Shares, comprised of: (a) 402,702 Common Shares, an additional 326,560 Common Shares underlying vested warrants and 435,414 Common Shares underlying Series A-1 Preferred Shares that are deemed outstanding held by Pardeep Nijhawan Medicine Professional Corporation, (b) 32,013 Common Shares held by The Digestive Health Clinic Inc., (c) 53,104 Common Shares held by 1968160 Ontario Inc., and (d) 32,609 Common Shares held by The New Nijhawan Family Trust 2015. Pardeep Nijhawan's holdings exclude Common Shares underlying Series B-1 Preferred Shares held by Pardeep Nijhawan which are subject to a 19.99% beneficial ownership blocker, Common Shares underlying restricted stock units held by this Reporting Person that will not vest within 60 days of June 16, 2026 and Common Shares underlying share options held by this Reporting Person that will not vest within 60 days of June 16, 2026. The Reporting Person will not have the right to convert any portion of its Series B-1 Preferred Shares if, together with its affiliates, it would beneficially own in excess of 19.99% of the number of Common Shares outstanding immediately after giving effect to such conversion. Pardeep Nijhawan's holdings represent an aggregate of approximately 19.99% of the Issuer's outstanding Common Shares (based on a total of 9,626,964 Common Shares of the Issuer outstanding as of June 16, 2026, 56,875 Common Shares underlying vested share options or underlying share options that will vest within 60 days of June 16, 2026, 471,818 Common Shares underlying vested restricted stock units or restricted stock units that will vest within 60 days of June 16, 2026, 326,560 Common Shares underlying vested warrants, 435,414 Common Shares underlying Series A-1 Preferred Shares and 136,833 Common Shares underlying Series B-1 Preferred Shares that are beneficially owned and deemed outstanding with respect to this Reporting Person). As of the date hereof, Pardeep Nijhawan Medicine Professional Corporation may be deemed to be the beneficial owner, with shared voting and dispositive power, of an aggregate of 1,164,676 Common Shares, comprised of: (i) 402,702 Common Shares, (ii) 326,560 Common Shares underlying vested warrants and (iii) 435,414 Common Shares underlying Series A-1 Preferred Shares that are deemed outstanding with respect to this Reporting Person. Pardeep Nijhawan Medicine Professional Corporation's holdings represent an aggregate of approximately 11.2% of the Issuer's outstanding Common Shares (based on a total of 9,626,964 Common Shares of the Issuer outstanding as of June 16, 2026, 326,560 Common Shares underlying vested warrants and 435,414 Common Shares underlying Series A-1 Preferred Shares that are deemed outstanding with respect to this Reporting Person). As of the date hereof, The Digestive Health Clinic Inc. may be deemed to be the beneficial owner, with shared voting and dispositive power, of 32,013 Common Shares, representing an aggregate of approximately 0.3% of the Issuer's outstanding Common Shares (based on a total of 9,626,964 Common Shares of the Issuer outstanding as of June 16, 2026). As of the date hereof, 1968160 Ontario Inc. may be deemed to be the beneficial owner, with shared voting and dispositive power, of 53,104 Common Shares, representing an aggregate of approximately 0.6% of the Issuer's outstanding Common Shares (based on a total of 9,626,964 Common Shares of the Issuer outstanding as of June 16, 2026). As of the date hereof, The New Nijhawan Family Trust 2015 may be deemed to be the beneficial owner, with shared voting and dispositive power, of 32,609 Common Shares, representing an aggregate of approximately 0.3% of the Issuer's outstanding Common Shares (based on a total of 9,626,964 Common Shares of the Issuer outstanding as of June 16, 2026).

**(b)**
The information contained in Item 5(a) of this Schedule 13D is hereby incorporated by reference in its entirety into this Item 5(b).

**(c)**
Except as set forth in this Schedule 13D, the Reporting Persons have not effected any transactions with respect to the Common Shares of the Issuer during the past 60 days.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Pardeep Nijhawan Medicine Professional Corporation

**Signature:** /s/ Pardeep Nijhawan

**Name/Title:** Pardeep Nijhawan, Chief Executive Officer

**Date:** 06/16/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** The Digestive Health Clinic Inc.

**Signature:** /s/ Pardeep Nijhawan

**Name/Title:** Pardeep Nijhawan, Chief Executive Officer

**Date:** 06/16/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** 1968160 Ontario Inc.

**Signature:** /s/ Pardeep Nijhawan

**Name/Title:** Pardeep Nijhawan, Chief Executive Officer

**Date:** 06/16/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** The New Nijhawan Family Trust 2015

**Signature:** /s/ Pardeep Nijhawan

**Name/Title:** Pardeep Nijhawan, Trustee

**Date:** 06/16/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Pardeep Nijhawan

**Signature:** /s/ Pardeep Nijhawan

**Name/Title:** Pardeep Nijhawan

**Date:** 06/16/2026