Bright Minds Biosciences Inc.
DRUG- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001827401
No open-market purchases or sales by Bright Minds Biosciences Inc. insiders were filed in the last 90 days; 99 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.
Holders of 5% or more of DRUG
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Bright Minds Biosciences Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Janus Henderson Group PLC | 13G/A | 14.90%1.16M shares | −1.40 ppfrom 16.30% | Feb 7, 20254 filings | Feb 17, 2026 | SEC |
| Cormorant Asset Management, LP | 13G/A | 10.88%1.06M shares | – | Feb 6, 20261 filing | Feb 6, 2026 | SEC |
| Vivo Opportunity Fund Holdings, L.P. | 13G | 6.40%454.2K shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Adage Capital Management, L.P. | 13G | 5.58%395.7K shares | New | Nov 13, 20251 filing | Nov 13, 2025 | SEC |
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
17 Schedule 13D and 13G filings on Bright Minds Biosciences Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 17, 20264:33 PM ET | Janus Henderson Group PLC | 13G/A | 14.90%1.16M shares | −1.40 ppfrom 16.30% | Dec 31, 2025 | SEC |
| Feb 17, 20264:22 PM ET | Commodore Capital LPand 1 other | 13G/A | 0.30%18.9K shares | −6.90 ppfrom 7.20%Below 5% | Dec 31, 2025 | SEC |
| Feb 17, 20264:00 PM ET | Perceptive Advisors LLCand 2 others | 13G/A | 4.60%449.3K shares | −1.70 ppfrom 6.30%Below 5% | Dec 31, 2025 | SEC |
| Feb 6, 20263:00 PM ET | Cormorant Asset Management, LPand 1 other | 13G/A | 10.88%1.06M shares | – | Jan 31, 2026 | SEC |
| Nov 14, 20256:38 PM ET | Vivo Opportunity Fund Holdings, L.P.and 3 others | 13G | 6.40%454.2K shares | New | Sep 30, 2025 | SEC |
| Nov 13, 20259:00 AM ET | Adage Capital Management, L.P.and 2 others | 13G | 5.58%395.7K shares | New | Sep 30, 2025 | SEC |
| Nov 12, 20258:00 AM ET | Sio Capital Management, LLC | 13G/A | 2.69%190.8K shares | −4.58 ppfrom 7.27%Below 5% | Sep 30, 2025 | SEC |
| Aug 14, 202510:58 AM ET | Janus Henderson Group PLCand 1 other | 13G/A | 16.30%1.15M shares | +0.30 ppfrom 16.00% | Jun 30, 2025 | SEC |
| Aug 13, 20252:00 PM ET | Sio Capital Management, LLC | 13G/A | 7.27%512.3K shares | +0.06 ppfrom 7.21% | Jun 30, 2025 | SEC |
| May 15, 20254:51 PM ET | Ra Capital Management, L.P.and 3 others | 13G/A | 2.90%206.4K shares | –Below 5% | Mar 31, 2025 | SEC |
| May 15, 20254:30 PM ET | Perceptive Advisors LLCand 2 others | 13G/A | 6.30%444.6K shares | – | Mar 31, 2025 | SEC |
| Apr 8, 20253:14 PM ET | Sio Capital Management, LLC | 13G | 7.21%507.6K shares | +0.71 ppfrom 6.50% | Mar 31, 2025 | SEC |
| Apr 7, 20254:07 PM ET | Janus Henderson Group PLCand 1 other | 13G/A | 16.00%1.11M shares | +4.40 ppfrom 11.60% | Mar 31, 2025 | SEC |
| Feb 14, 20254:06 PM ET | Point72 Asset Management, L.P.and 2 others | 13G/A | 3.00%135.2K shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 14, 20254:05 PM ET | Commodore Capital LPand 1 other | 13G/A | 7.20%500.0K shares | – | Dec 31, 2024 | SEC |
| Feb 10, 202512:56 PM ET | Sio Capital Management, LLC | 13G | 6.50%451.8K shares | New | Dec 31, 2024 | SEC |
| Feb 7, 202510:49 AM ET | Janus Henderson Group PLCand 1 other | 13G | 11.60%805.0K shares | New | Jan 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Bright Minds Biosciences Inc. shares.
No Form 144 notices for Bright Minds Biosciences Inc. are on file.