6-K
COSCIENS Biopharma Inc. (CSCIF)
UNITEDSTATES
SECURITIESAND EXCHANGE COMMISSION
Washington,D.C. 20549
FORM6-K
REPORTOF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDERTHE SECURITIES EXCHANGE ACT OF 1934
For the month of May, 2026
Commission File Number: 001-38064
COSCIENSBiopharma Inc.
(Translation of registrant’s name into English)
c/oBorden Ladner Gervais, LLP
22Adelaide St. West, Suite 3400
BayAdelaide Centre, East Tower
TorontoON M5H 4E3
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F ☒ Form 40-F ☐
On May 8, 2026, COSCIENS Biopharma Inc. (the “Company”) issued a Notice of Annual General and Special Meeting of Shareholders (the “Notice of Meeting”) in connection with the annual general and special meeting of shareholders of the Company (the “Meeting”). A copy of the Notice of Meeting is attached hereto as Exhibit 99.1, which is incorporated by reference herein.
DOCUMENTSINDEX
| Exhibit | Description |
|---|---|
| 99.1 | Notice of Annual General and Special Meeting of Shareholders |
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| COSCIENS Biopharma Inc. | ||
|---|---|---|
| Date:<br> May 8, 2026 | By: | /s/ Giuliano La Fratta |
| Name: | Giuliano<br> La Fratta | |
| Title: | Chief<br> Financial Officer |
Exhibit99.1
| May<br> 8, 2026 |  <br><br> 650 De Maisonneuve Blvd., 7th Floor<br><br> Montreal QC, H3A 3T2<br><br> www.computershare.com |
|---|
To: All Canadian Securities Regulatory Authorities
Subject:COSCIENS Biopharma Inc.
Dear Sir/Madam:
We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:
| Meeting Type : | Annual General and Special Meeting |
|---|---|
| Record Date for Notice of Meeting : | May 18, 2026 |
| Record Date for Voting (if applicable) : | May 18, 2026 |
| Beneficial Ownership Determination Date : | May 18, 2026 |
| Meeting Date : | June 17, 2026 |
| Meeting Location (if available) : | Virtual Meeting |
| Issuer sending proxy related materials directly to NOBO: | No |
| Issuer paying for delivery to OBO: | Yes |
| Notice and Access (NAA) Requirements: | **** |
| --- | --- |
| NAA for Beneficial Holders | No |
| NAA for Registered Holders | No |
VotingSecurity Details:
| Description | CUSIP Number | ISIN |
|---|---|---|
| COMMON SHARES | 22112H101 | CA22112H1010 |
Sincerely,
Computershare
Agent for COSCIENS Biopharma Inc.