§ EQUITY
USDQTTB
Q32 BIO INC
USD
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
46 increased/new, 14 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| ORBIMED ADVISORS LLC | 2.3M | 0.3% | ±0% |
| Atlas Venture Life Science Advisors, LLC | 2.1M | 1.7% | ±0% |
| Opaleye Management Inc. | 1.3M | 1.1% | n/a |
| Carlyle Group Inc. | 1.1M | 0.1% | ±0% |
| ARCH Venture Management, LLC | 320K | 0.3% | ±0% |
| ACORN CAPITAL ADVISORS, LLC | 315K | 0.6% | −36% |
◇ AC INTELLIGENCE
Top institutional owners for QTTB 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
OTHER91.5% · 33 holders
QUALITY / COMPOUNDER2.8% · 5 holders
SYSTEMATIC / QUANT2.7% · 3 holders
PASSIVE / INDEX2.1% · 2 holders
DEALER / BANK0.8% · 8 holders
TACTICAL / MACRO0.2% · 1 holder
INCOME / DEFENSIVE0.0% · 1 holder
◇ 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 QTTB in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention QTTB yet.