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This page shows the rows from one Form 4 filing as reported to the SEC.
Big buy
Diyong Xu: large open-market buy of QTTB
$10M open-market purchase by Diyong Xu, Director at Q32 Bio Inc, filed June 2, 2026. Learn more
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Big BuyQTTB
$12.19-3.56% today
Diyong Xu · Director at Q32 Bio Inc
$10M
Diyong Xu bought $10M of QTTB (Q32 Bio Inc).
Insider purchase
Transaction details
Diyong Xu, a Director, reported a $10M open-market purchase equal to 11% of QTTB's market cap.
Diyong Xu (Director) bought 1,250,000 shares of QTTB, Q32 Bio Inc, Healthcare ($87.2M market cap), at $8.00 per share on May 28, 2026 for a total of $10M (11% of the market cap).
Diyong Xu
Director
Purchase value$10M
Shares purchased1,250,000
Price per share$8.00 per share
- % of market cap
- 11%
- Trade date
- May 28, 2026
- Filed
- June 2, 2026
- Filing delay
- 5 days
Permalink https://bluecollarpicks.com/insider-trading/QTTB/buy/2101881
Market context
QTTB market snapshot
Current price$12.19
1-day change-3.56%
Market cap$87.2M
SectorHealthcare
Next earningsAugust 4, 2026
$12.19
Current price$12.19
Analyst target$14.33 (+178.9%)
Last enriched June 5, 2026 at 8:09 AM EDT.
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Public Form 4 filings, normalized for cleaner scanning. What do these codes mean?
| Ticker | Type & Role | Value | |
|---|---|---|---|
| This filing | Big Buy Director | $10M | |
Sell CFO | $18K | ||
Sell CEO | $44.7K | ||
Sell Officer | $12.7K | ||
Grant Director | $64K | ||
Grant Director | $45K | ||
Grant Director | $56K | ||
Sell Officer | $5.4K | ||
Sell CEO | $18.9K | ||
Sell CFO | $7.6K | ||
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Method Public Form 4 filings, normalized for cleaner scanning. Filtered rows stay available in All Form 4 Filings and ticker history. Which view should I use? →
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