Immix Biopharma
Developing BCMA-targeted CAR-T therapy for relapsed or refractory AL amyloidosis.
$13.82
After-hours close−0.10 (−0.72%)
At close$13.92(−2.73%)
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Breakdown13F · Form 4
Institutions 49.77%27.08M sharesInsiders 7.31%3.98M sharesOther 42.92%23.35M shares
Shares outstanding 54.40M · Float 43.40M · 79.8% free float
Institutions13F, as of Mar 31, 2026
79 holders · 27.08M shares · 24 new positions · 51 increased · 14 reduced · 14 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Janus Henderson Group PLC | 4.80M | 8.83% | +880.4K | May 18, 2026 |
| Saturn V Capital Management LLC | 3.69M | 6.79% | +694.4K | May 15, 2026 |
| Eventide Asset Management, LLC | 2.55M | 4.69% | 0 | May 15, 2026 |
| Vanguard Capital Management LLC | 1.79M | 3.29% | +1.79Mnew | May 15, 2026 |
| Millennium Management LLC | 1.75M | 3.22% | +90.4K | May 15, 2026 |
| Marshall Wace, LLP | 1.64M | 3.02% | −337.2K | May 15, 2026 |
| Logos Global Management LP | 1.23M | 2.25% | +225.0K | May 15, 2026 |
| Bleichroeder LP | 1.00M | 1.84% | 0 | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Janus Henderson Group PLC | 13.00% | 9.09M | 13G | Jun 5, 2026 ↗ |
| Saturn V Capital Management LP | 6.97% | 3.69M | 13G | Feb 17, 2026 ↗ |
| Eventide Asset Management, LLC | 5.60% | 3.89M | 13G | Aug 14, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Ilya M. Rachman | director, officer: CEO and Chairman | 1.14M | 2.10% | Dec 10, 2025 |
| Nancy T. Chang | director | 925.1K | 1.70% | May 29, 2026 |
| Jason Hsu | director | 899.3K | 1.65% | May 29, 2026 |
| Gabriel S. Morris | director, officer: CFO | 718.3K | 1.32% | Dec 10, 2025 |
| Helen C. Adams | director | 181.0K | 0.33% | May 29, 2026 |
| Magda Marquet | director | 52.3K | 0.10% | May 29, 2026 |
| Jane Buchan | director | 28.7K | 0.05% | May 29, 2026 |
| Carey Ng | director | 26.3K | 0.05% | May 29, 2026 |
| Yekaterina Chudnovsky | director | 6.3K | 0.01% | May 29, 2026 |
1 ten-percent owner holds 899.8K shares by Form 4, outside the officers-and-directors figure above · 1 person has not refiled in the last 18 months (905.2K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Dec 10, 2025 | Gabriel S. Morrisdirector, officer: CFO | Purchase | 770 | $6.58 | 291,429 |
| Dec 10, 2025 | Ilya M. Rachmandirector, officer: CEO and Chairman | Purchase | 746 | $6.67 | 1,141,683 |
| Sep 16, 2025 | Gabriel S. Morrisdirector, officer: CFO | Purchase | 2,600 | $1.97 | 290,659 |
| Sep 17, 2025 | Ilya M. Rachmandirector, officer: CEO and Chairman | Purchase | 2,500 | $2.02 | 1,140,937 |
CongressHouse and Senate disclosures
Not reported.