§ BIOTECHNOLOGY
USD · BiotechnologyALT
ALTIMMUNE INC
USDSector · BiotechnologyBeta · 0.14
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
149 increased/new, 38 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/B | 1.67 | EPS (TTM) | -0.92 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 12.8M | 0.0% | +32% |
| State Street | 7.1M | 0.0% | +40% |
| VANGUARD CAPITAL MANAGEMENT LLC | 5.7M | n/a | n/a |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | n/a | n/a |
| Marshall Wace LLP | 4.0M | 0.0% | +335% |
| Millennium Management | 3.3M | 0.0% | +1471% |
◇ AC INTELLIGENCE
Top institutional owners for ALT as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER85.6% · 0 holders
OTHER6.1% · 116 holders
PASSIVE / INDEX3.0% · 9 holders
DEALER / BANK2.4% · 18 holders
SYSTEMATIC / QUANT1.0% · 6 holders
QUALITY / COMPOUNDER0.9% · 13 holders
TACTICAL / MACRO0.8% · 2 holders
ACTIVIST0.1% · 1 holder
GROWTH / MOMENTUM0.0% · 1 holder
DEEP VALUE0.0% · 1 holder
INCOME / DEFENSIVE0.0% · 6 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for ALT in the last 180 days.