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COSCIENS Biopharma Inc.

CSCIF
Exchange
OTC
Industry
Perfumes, Cosmetics & Other Toilet Preparations
SEC CIK
0001113423

No open-market purchases or sales by COSCIENS Biopharma Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Holders of 5% or more of CSCIF

Holders whose latest Schedule 13D or 13G filing reports 5% or more of COSCIENS Biopharma Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of CSCIF
HolderLatest formStakeChangeFirst filedLatest filingFiling
Goodwood Inc.13D/A8.20%257.3K shares0.00 ppfrom 8.20%Dec 20, 20242 filingsJun 11, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

8 Schedule 13D and 13G filings on COSCIENS Biopharma Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on CSCIF
Filed (ET)FilerFormStakeChangeEvent dateFiling
Apr 17, 20265:55 PM ETPuccetti Peterand 1 other13D/A0.50%15.7K shares–Below 5%Mar 1, 2026SEC
Jun 11, 20256:08 AM ETGoodwood Inc.and 3 others13D/A8.20%257.3K shares0.00 ppfrom 8.20%May 30, 2025SEC
Dec 20, 20246:05 PM ETGoodwood Inc.and 3 others13D/A8.20%257.3K shares–Dec 19, 2024SEC
Feb 11, 2022Intracoastal Capital, LLC13G/AOld format–––SEC
Feb 11, 2022Lind Global Macro Fund LP13G/AOld format–––SEC
Feb 16, 2021Armistice Capital, LLC13G/AOld format–––SEC
Feb 12, 2021Lind Global Macro Fund LP13G/AOld format–––SEC
Jan 29, 2021Intracoastal Capital, LLC13G/AOld format–––SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell COSCIENS Biopharma Inc. shares.

No Form 144 notices for COSCIENS Biopharma Inc. are on file.