// company-profile
Q32 Bio Inc.
QTTB// activity-summary
Recent insider activity is bullish. Over the last 30 days, 12 insiders purchased shares (net $30.0M). Buying was led by Xu Diyong.
// 90-day insight
Over the last 90 days, Q32 Bio Inc. insiders bought $30.0M across 12 transactions with no open-market sales.
- Most active insider: Xu Diyong with 3 transactions totaling $15.0M.
- Largest single purchase: $10.0M by Xu Diyong on May 28, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Q32 Bio Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 12, 2026 | Lundberg Sven Ante | QTTB | Award | 9,810 | $0.00 | $0K |
| Jun 12, 2026 | TZIANABOS ARTHUR | QTTB | Award | 9,810 | $0.00 | $0K |
| Jun 12, 2026 | LAPORTE KATHLEEN | QTTB | Award | 9,810 | $0.00 | $0K |
| Jun 12, 2026 | Iwicki Mark T | QTTB | Award | 9,810 | $0.00 | $0K |
| Jun 12, 2026 | GRAYZEL DAVID S. | QTTB | Award | 9,810 | $0.00 | $0K |
45 more transactions hidden
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