Who owns Immunic (IMUX)
Which tracked institutional funds hold IMUX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IMUX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on IMUX is one-sided between 2026-Q1 and 2026-Q2: 25 added or opened and 4 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
IMUX’s largest tracked holder by dollar value, Aberdeen Group plc, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in IMUX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 56 tracked filers holding IMUX, 13 increased or opened the position and 76 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in IMUX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 3
- BRAIDWELL LP$10M
- Jones Hill Capital LP$8M
- Jefferies Financial Group Inc.$1M
Full exits 2
- RENAISSANCE TECHNOLOGIES LLC$1M
- HRT FINANCIAL LP$547K
Largest adds
- MILLENNIUM MANAGEMENT LLC$7M
- Woodline Partners LP$6M
- Laurion Capital Management LP$5M
- Aberdeen Group plc$4M
- BVF INC/IL$3M
- VANGUARD CAPITAL MANAGEMENT LLC$3M
Largest trims
- MORGAN STANLEY$3M
- 683 Capital Management, LLC$456K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Aberdeen Group plc trimmed | 824,393 | $13M | 8.9% | 2026-Q2 |
| BVF INC/IL trimmed | 765,295 | $12M | 8.3% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 740,347 | $11M | 8.0% | 2026-Q2 |
| Avidity Partners Management LP trimmed | 669,941 | $10M | 7.3% | 2026-Q2 |
| BRAIDWELL LP new | 645,010 | $10M | 7.0% | 2026-Q2 |
| Laurion Capital Management LP trimmed | 610,326 | $9M | 6.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 571,561 | $9M | 6.2% | 2026-Q2 |
| Jones Hill Capital LP new | 539,814 | $8M | 5.8% | 2026-Q2 |
| Woodline Partners LP trimmed | 471,528 | $7M | 5.1% | 2026-Q2 |
| Soleus Capital Management, L.P. trimmed | 450,000 | $7M | 4.9% | 2026-Q2 |
| Propel Bio Management, LLC trimmed | 325,022 | $5M | 3.5% | 2026-Q2 |
| Nantahala Capital Management, LLC trimmed | 250,646 | $4M | 2.7% | 2026-Q2 |
| UBS Group AG trimmed | 175,756 | $3M | 1.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 170,675 | $3M | 1.8% | 2026-Q2 |
| 683 Capital Management, LLC trimmed | 147,245 | $2M | 1.6% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 139,860 | $2M | 1.5% | 2026-Q2 |
| BlackRock, Inc. trimmed | 132,791 | $2M | 1.4% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 104,816 | $2M | 1.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 90,890 | $1M | 1.0% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 89,687 | $1M | 1.0% | 2026-Q2 |
| Jefferies Financial Group Inc. new | 84,900 | $1M | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 82,029 | $1M | 0.9% | 2026-Q2 |
| Ikarian Capital, LLC trimmed | 67,464 | $1M | 0.7% | 2026-Q2 |
| STATE STREET CORP trimmed | 61,259 | $942K | 0.7% | 2026-Q2 |
| Quadrature Capital Ltd added | 37,786 | $581K | 0.4% | 2026-Q2 |
| Simplify Asset Management Inc. trimmed | 30,725 | $472K | 0.3% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 30,720 | $472K | 0.3% | 2026-Q2 |
| MORGAN STANLEY trimmed | 23,748 | $365K | 0.3% | 2026-Q2 |
| Brevan Howard Capital Management LP trimmed | 23,181 | $356K | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 22,909 | $352K | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 21,620 | $332K | 0.2% | 2026-Q2 |
| LPL Financial LLC trimmed | 17,441 | $268K | 0.2% | 2026-Q2 |
| MML INVESTORS SERVICES, LLC trimmed | 14,662 | $225K | 0.2% | 2026-Q2 |
| ALPS ADVISORS INC new | 13,824 | $212K | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC trimmed | 13,057 | $201K | 0.1% | 2026-Q2 |
| Point72 Asset Management, L.P. new | 10,806 | $166K | 0.1% | 2026-Q2 |
| Strategies Wealth Advisors, LLC trimmed | 10,000 | $154K | 0.1% | 2026-Q2 |
| China Universal Asset Management Co., Ltd. new | 6,400 | $98K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 4,569 | $70K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 3,186 | $49K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 1,000 | $15K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 1,000 | $15K | 0.0% | 2026-Q2 |
| Providence Capital Advisors, LLC new | 682 | $10K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 494 | $8K | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. trimmed | 373 | $6K | 0.0% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO trimmed | 150 | $2K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 145 | $2K | 0.0% | 2026-Q2 |
| FMR LLC trimmed | 128 | $2K | 0.0% | 2026-Q2 |
| Rockefeller Capital Management L.P. trimmed | 100 | $2K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 87 | $1K | 0.0% | 2026-Q2 |
| Allworth Financial LP trimmed | 84 | $1K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 38 | $586 | 0.0% | 2026-Q2 |
| SHP Wealth Management trimmed | 14 | $215 | 0.0% | 2026-Q2 |
| CALDWELL SUTTER CAPITAL, INC. added | 10 | $154 | 0.0% | 2026-Q2 |
| DANSKE BANK A/S new | 2 | $31 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd trimmed | 2 | $31 | 0.0% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 919,164 | $1M | 0.7% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP new | 493,393 | $547K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| Hudson Bay Capital Management LP added | 213,017 | $236K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| OMERS ADMINISTRATION Corp new | 168,300 | $187K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| GOLDMAN SACHS GROUP INC new | 149,770 | $166K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| BANK OF AMERICA CORP /DE/ added | 143,867 | $160K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC added | 113,366 | $126K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Qube Research & Technologies Ltd added | 111,460 | $124K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HB Wealth Management, LLC | 91,450 | $102K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 85,000 | $94K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA INVESTMENTS, LP trimmed | 67,186 | $75K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Cambridge Investment Research Advisors, Inc. new | 48,500 | $54K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Creative Planning added | 35,022 | $39K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Graham Capital Management, L.P. new | 33,297 | $37K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Tower Research Capital LLC (TRC) added | 32,868 | $36K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| XTX Topco Ltd trimmed | 30,824 | $34K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Bank of New York Mellon Corp trimmed | 28,358 | $31K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Schonfeld Strategic Advisors LLC trimmed | 28,300 | $31K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Scientech Research LLC new | 26,635 | $30K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CTC Alternative Strategies, Ltd. new | 24,390 | $27K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Corient Private Wealth LLC new | 22,100 | $25K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| LINCOLN CAPITAL CORP new | 20,400 | $23K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| AXQ CAPITAL, LP new | 18,151 | $20K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Balboa Wealth Partners | 12,000 | $13K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| COMMONWEALTH EQUITY SERVICES, LLC new | 10,360 | $12K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Private Advisor Group, LLC | 10,000 | $11K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Dynamic Advisor Solutions LLC | 10,000 | $11K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Crescent Grove Advisors, LLC | 10,000 | $11K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CWM, LLC | 8,642 | $10K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 5,020,337 | $3M | 1.9% | 2025-Q4 stale (2 quarters behind) |
| Focus Partners Wealth added | 2,622,462 | $2M | 1.6% | 2025-Q4 stale (2 quarters behind) |
| GSA CAPITAL PARTNERS LLP added | 527,455 | $282K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| Squarepoint Ops LLC added | 352,875 | $188K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Connective Capital Management, LLC new | 301,296 | $161K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Seven Fleet Capital Management LP new | 155,223 | $83K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC trimmed | 40,000 | $21K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Marex Group plc added | 32,700 | $17K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| StoneX Group Inc. new | 20,540 | $11K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Exome Asset Management LLC new | 173,900 | $153K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| Ring Mountain Capital, LLC | 18,039 | $16K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| WOLVERINE TRADING, LLC trimmed | 10,953 | $10K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Omega Fund Management, LLC | 1,788,160 | $1M | 0.9% | 2025-Q2 stale (4 quarters behind) |
| Ghisallo Capital Management LLC new | 835,000 | $582K | 0.4% | 2025-Q2 stale (4 quarters behind) |
| RTW INVESTMENTS, LP trimmed | 402,107 | $280K | 0.2% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.