Cero Therapeutics Holdings, Inc.
CERO- Exchange
- OTC
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001870404
No open-market purchases or sales by Cero Therapeutics Holdings, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Other share classesCEROW
Holders of 5% or more of CERO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Cero Therapeutics Holdings, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Atwood Brian G | 13D/A | 9.90%511.8K shares | +3.20 ppfrom 6.70% | Feb 7, 20252 filings | Apr 4, 2025 | SEC |
| Tibbs Isaiah | 13G | 8.67%1.83M shares | New | Mar 12, 20261 filing | Mar 12, 2026 | 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
6 Schedule 13D and 13G filings on Cero Therapeutics Holdings, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 12, 20263:38 PM ET | Tibbs Isaiah | 13G | 8.67%1.83M shares | New | Feb 19, 2026 | SEC |
| Aug 14, 20259:02 PM ET | Armistice Capital, LLCand 1 other | 13G/A | 4.99%63.3K shares | −5.00 ppfrom 9.99%Below 5% | Jun 30, 2025 | SEC |
| May 15, 20253:12 PM ET | Armistice Capital, LLCand 1 other | 13G | 9.99%584.5K shares | New | Mar 31, 2025 | SEC |
| Apr 4, 20257:17 PM ET | Atwood Brian Gand 2 others | 13D/A | 9.90%511.8K shares | +3.20 ppfrom 6.70% | Mar 31, 2025 | SEC |
| Feb 7, 20255:21 PM ET | Atwood Brian Gand 2 others | 13D/A | 6.70%202.4K shares | – | Feb 7, 2025 | SEC |
| Dec 17, 20247:26 PM ET | YK Bioventures Opportunities GP I, LLCand 3 others | 13G/A | 0.00%17.0K shares | –Below 5% | Dec 13, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Cero Therapeutics Holdings, Inc. shares.
No Form 144 notices for Cero Therapeutics Holdings, Inc. are on file.