Q32 Bio Inc.

NasdaqCM:QTTB Stock Report

Market Cap: US$204.0m

Q32 Bio Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:QTTB Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
28 May 26BuyUS$5,000,000Atlas Venture Advisors, Inc.Company625,000US$8.00
28 May 26BuyUS$15,000,000OrbiMed Advisors LLCCompany1,875,000US$8.00
28 May 26BuyUS$15,000,000OrbiMed Advisors LLCCompany1,875,000US$8.00
25 Feb 26SellUS$44,675Jodie MorrisonIndividual9,896US$4.51
25 Feb 26SellUS$12,708Shelia VioletteIndividual2,815US$4.51
02 Dec 25SellUS$77,871Jodie MorrisonIndividual22,506US$3.46
02 Dec 25SellUS$31,395Lee KalowskiIndividual9,072US$3.46
26 Aug 25SellUS$7,636Lee KalowskiIndividual4,240US$1.80
26 Aug 25SellUS$18,900Jodie MorrisonIndividual10,494US$1.80
26 Aug 25SellUS$5,385Shelia VioletteIndividual2,990US$1.80

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of QTTB?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders120,1310.668%
Public Companies444,3272.47%
Institutions3,535,96119.7%
Hedge Funds3,606,22820%
VC/PE Firms10,280,29157.2%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 39%.

Top Shareholders

Top 25 shareholders own 104.36% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
24.3%
OrbiMed Advisors LLC
4,127,987US$49.7m83.2%0.9%
16%
Atlas Venture Advisors, Inc.
2,717,106US$32.7m29.9%4.37%
13.9%
BVF Partners L.P.
2,350,000US$28.3m0%0.9%
13.8%
RA Capital Management, L.P.
2,332,457US$28.1m0%0.42%
7.41%
Opaleye Management Inc.
1,256,228US$15.1m489%1.93%
6.5%
Abingworth LLP
1,102,741US$13.3m0%12.51%
6.08%
Sirenia Capital Management LP
1,031,654US$12.4m0%no data
1.89%
Arch Venture Partners, L.P.
320,482US$3.9m0%0.36%
1.86%
Acorn Bioventures
315,052US$3.8m-36.2%1.44%
1.81%
Vanguard Capital Management, LLC
306,401US$3.7m0%no data
1.45%
Mackenzie Financial Corporation
246,304US$3.0m0%no data
1.44%
Sanofi
244,083US$2.9m0%0.2%
1.22%
Renaissance Technologies LLC
206,915US$2.5m108%no data
1.18%
Bristol-Myers Squibb Company
200,244US$2.4m0%no data
1.02%
Acadian Asset Management LLC
172,586US$2.1m257%no data
0.79%
Monimus Capital Management, LP
134,310US$1.6m0%0.45%
0.7%
Geode Capital Management, LLC
118,152US$1.4m11.4%no data
0.6%
Pfizer Venture Investments LLC
101,618US$1.2m-63.4%0.58%
0.51%
BlackRock, Inc.
86,147US$1.0m43.7%no data
0.43%
Shelia Violette
73,096US$879.3k0%no data
0.39%
Jane Street Group, LLC
65,599US$789.2k159%no data
0.31%
Marshall Wace LLP
52,440US$630.8k0%no data
0.29%
Vanguard Fiduciary Trust Company
49,995US$601.4k-7.55%no data
0.25%
Two Sigma Investments, LP
42,346US$509.4k-9.57%no data
0.24%
State Street Global Advisors, Inc.
41,514US$499.4k95.5%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/06/09 09:58
End of Day Share Price 2026/06/09 00:00
Earnings2026/03/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Q32 Bio Inc. is covered by 6 analysts. 5 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Imogen MansfieldCantor Fitzgerald & Co.
Joseph PantginisH.C. Wainwright & Co.
Joseph CatanzaroMizuho Securities USA LLC