63% buyers of institutions opening or closing positions this quarter
14 more new buyers than exits, ownership rose 31.66 percentage points vs the prior quarter, and 1 well-known fund manager in the top 25.
63% buyers of institutions opening or closing positions this quarter
53.5% institutional ownership
Propel Bio Management, portfolio allocation
Institutional ownership vs Biotechnology peers
No Form 4 insider transactions on file
Latest positioning in IMUX across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in IMUX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | abrdn plc | 8.2M | $9.2M | 0.0% | 83.538% | 0.01% |
| 2 | BVF INC/IL | 7.7M | $8.5M | 0.0% | 77.549% | 0.27% |
| 3 | Avidity Partners Management LP | 670K | $6.4M | -85.7% | 6.789% | 1.46% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 5.1M | $5.7M | β | 52.068% | 0.00% |
| 5 | Soleus Capital Management, L.P. | 4.5M | $5.0M | β | 45.599% | 0.20% |
| 6 | Laurion Capital Management LP | 3.9M | $4.3M | 0.0% | 39.339% | 0.19% |
| 7 | MILLENNIUM MANAGEMENT LLC | 3.8M | $4.2M | +10.5% | 38.303% | 0.00% |
| 8 | MORGAN STANLEY | 3.3M | $3.7M | +57.3% | 33.324% | 0.00% |
| 9 | Nantahala Capital Management, LLC | 2.5M | $2.8M | -42.8% | 25.399% | 0.10% |
| 10 | 683 Capital Management, LLC | 2.5M | $2.7M | β | 24.826% | 0.14% |
| 11 | Propel Bio Management, LLC | 2.3M | $2.6M | β | 23.760% | 1.65% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $1.7M | +29.7% | 15.461% | 0.00% |
| 13 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.4M | $1.6M | 0.0% | 14.172% | 0.00% |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.1M | $1.2M | +211.4% | 11.183% | 0.00% |
| 15 | Woodline Partners LP | 967K | $1.1M | β | 9.800% | 0.00% |
| 16 | BlackRock, Inc. | 964K | $1.1M | +34.4% | 9.771% | 0.00% |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 919K | $1.0M | β | 9.314% | 0.00% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 741K | $822K | β | 7.504% | 0.00% |
| 19 | Ikarian Capital, LLC | 675K | $749K | 0.0% | 6.836% | 0.06% |
| 20 | STATE STREET CORP | 566K | $628K | +70.4% | 5.732% | 0.00% |
| 21 | UBS Group AG | 523K | $580K | -2.7% | 5.298% | 0.00% |
| 22 | Simplify Asset Management Inc. | 439K | $487K | β | 4.448% | 0.01% |
| 23 | NORTHERN TRUST CORP | 263K | $292K | +19.3% | 2.668% | 0.00% |
| 24 | Hudson Bay Capital Management LP | 213K | $236K | β | 2.159% | 0.00% |
| 25 | LPL Financial LLC | 169K | $188K | +191.7% | 1.716% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in IMUX β a direct measure of their conviction.
Filings activity in IMUX during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new IMUX position in Q1 2026
Institutions that fully closed their IMUX position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 72 | +24% | 53.54% | +31.66 pp | $69M | +145% |
| Q4 2025 | 58 | 1.7% | 21.88% | 6.93 pp | $28M | 24% |
| Q3 2025 | 59 | +5.4% | 28.81% | +1.47 pp | $37M | +5.4% |
| Q2 2025 | 56 | 13% | 27.34% | 7.17 pp | $35M | 21% |
| Q1 2025 | 64 | +0.0% | 34.51% | 3.68 pp | $44M | 9.6% |
| Q4 2024 | 64 | +3.2% | 38.19% | 33.72 pp | $49M | 47% |
| Q3 2024 | 62 | +8.8% | 71.91% | +23.38 pp | $92M | +48% |
| Q2 2024 | 57 | β | 48.53% | β | $62M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
No recent Form 4 insider transactions on file for IMUX.
Quick answers to the most common questions about buying IMUX stock.
Based on Q1 2026 13F filings, institutional ownership of Immunic, Inc. stands at 53.5%, held across 72 reporting institutions.
abrdn plc is the largest reported institutional holder of IMUX, with approximately 8,243,941 shares worth $0.01B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of IMUX, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for IMUX is 61 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
33 institutions opened new positions in IMUX during Q1 2026, while 19 fully exited. 36 added to existing positions and 2 trimmed.
IMUX institutional ownership rose by 31.66 percentage points quarter-over-quarter, with a net change of β holders.
The top 10 institutions account for 76.5% of all reported 13F value in IMUX, and the top 25 account for 97.3%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.