Q32 Bio Inc
Ownership
Ownership Structure
Who owns Q32 Bio Inc (QTTB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 45.7% of the shares are freely tradable; institutional investors hold 70.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Orbimed Advisors LLC | 13.80 | 4,127,987 | +83.2 | 06/30/2026 |
| Boxer Capital Management, LLC | 10.52 | 3,149,310 | +0.0 | 06/30/2026 |
| Atlas Venture Life Science Advisors, LLC | 9.08 | 2,717,106 | +29.9 | 06/30/2026 |
| Bvf Inc | 7.85 | 2,350,000 | +0.0 | 06/30/2026 |
| RA Capital Management, LLC | 7.79 | 2,332,457 | +0.0 | 06/30/2026 |
| Point72 Asset Management, L.P. | 3.92 | 1,173,396 | +0.0 | 06/30/2026 |
| Opaleye Management Inc | 3.11 | 931,000 | -25.9 | 06/30/2026 |
| Logos Global Management LP | 2.67 | 800,000 | +0.0 | 06/30/2026 |
| SummitTX Capital, L.P | 2.45 | 733,774 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.52 | 755,247 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Morrison Jodie Pope | CEO | 340,038 | 2,958,331 $ | Oct 6, 2026 | direct |
| Kalowski Lee | CFO and President | 137,170 | 1,193,379 $ | Oct 6, 2026 | direct |
| Violette Shelia M. | Chief Scientific Officer | 126,854 | 1,103,630 $ | Oct 6, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 6, 2026 | Morrison Jodie Pope | CEO | Sell | 3,221 | 8.32 | 26,798 |
| Oct 6, 2026 | Violette Shelia M. | Chief Scientific Officer | Sell | 917 | 8.32 | 7,629 |
| Oct 6, 2026 | Kalowski Lee | CFO and President | Sell | 1,301 | 8.32 | 10,824 |
| Aug 25, 2026 | Kalowski Lee | CFO and President | Sell | 3,972 | 16.56 | 65,776 |
| Aug 25, 2026 | Morrison Jodie Pope | CEO | Sell | 9,845 | 16.56 | 163,033 |
| Aug 25, 2026 | Violette Shelia M. | Chief Scientific Officer | Sell | 2,798 | 16.56 | 46,335 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.