Immix Biopharma, Inc.
IMMX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001873835
No open-market purchases or sales by Immix Biopharma, Inc. insiders were filed in the last 90 days; 109 institutions reported holding it in 13F filings for Q2 2026, worth $579.6M in total; no superinvestor holds it.
Holders of 5% or more of IMMX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Immix Biopharma, 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 | 13.00%9.09M shares | +3.90 ppfrom 9.10% | Feb 17, 20263 filings | Jun 5, 2026 | SEC |
| Saturn V Capital Management LLC | 13G | 6.97%3.69M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Millennium Management LLC | 13G | 5.30%2.81M shares | New | Mar 20, 20261 filing | Mar 20, 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 Immix Biopharma, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jun 5, 202612:56 PM ET | Janus Henderson Group PLC | 13G/A | 13.00%9.09M shares | +3.90 ppfrom 9.10% | May 29, 2026 | SEC |
| May 15, 202612:38 PM ET | Janus Henderson Group PLC | 13G/A | 9.10%4.80M shares | +1.70 ppfrom 7.40% | Mar 31, 2026 | SEC |
| Mar 20, 20264:25 PM ET | Millennium Management LLCand 2 others | 13G | 5.30%2.81M shares | New | Mar 13, 2026 | SEC |
| Feb 17, 20262:50 PM ET | Saturn V Capital Management LLCand 1 other | 13G | 6.97%3.69M shares | New | Dec 26, 2025 | SEC |
| Feb 17, 202612:57 PM ET | Janus Henderson Group PLC | 13G | 7.40%3.92M shares | New | Dec 31, 2025 | SEC |
| Jan 29, 20256:17 AM ET | Hirschman Orinand 1 other | 13G/A | 0.00%0 shares | –Below 5% | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Immix Biopharma, Inc. shares.
No Form 144 notices for Immix Biopharma, Inc. are on file.