QTTB on Nasdaq

Q32 Bio Inc.

American pharmaceutical preparations company, incorporated in Delaware.

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Last updated Oct 18, 2026.

Overview

Compare with Agios Pharmaceuticals, Nektar Therapeutics or OCULAR THERAPEUTIX, INC, or pick any stock.

  • TickerQTTB on Nasdaq
  • IndustryPharmaceutical Preparations
  • HeadquartersDE
  • Incorporated inDE2
  • Business address830 Winter Street, Waltham, Ma 024512
  • Filer categoryNon-accelerated filer, Smaller reporting company2

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

31.5%Operating margin3
55.5%Net margin3
71.0%Return on equity3
-$33.5MFree cash flow3

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Research and development36¢$19.2M
  • Other costs9¢$4.8M
  • Profit55¢$29.8M

Out of $53.7M in revenue.3

Financial statements

Revenue45673$53.7M in 2025+3126% since 2019
0$20.0M$40.0M$60.0M2019: $1.7M$1.7M20192020: $2.7M$2.7M2020+62%2021: $34.0M$34.0M2021+1157%2022: $3.2M$3.2M2022−91%2023: $1.2M$1.2M2023−64%2024: $0$020242025: $53.7M$53.7M2025
Operating income456783$16.9M in 2025
-$150.0M-$100.0M-$50.0M0$50.0M2019: -$109.9M-$109.9M20192020: -$130.3M-$130.3M2020+18%2021: -$95.9M-$95.9M2021−26%2022: -$133.3M-$133.3M2022+39%2023: -$48.3M-$48.3M2023−64%2024: -$66.1M-$66.1M2024+37%2025: $16.9M$16.9M2025
Net income456783$29.8M in 2025
-$150.0M-$100.0M-$50.0M0$50.0M2019: -$103.9M-$103.9M20192020: -$128.7M-$128.7M2020+24%2021: -$95.8M-$95.8M2021−26%2022: -$5.0M-$5.0M2022−95%2023: -$53.7M-$53.7M2023+974%2024: -$47.7M-$47.7M2024−11%2025: $29.8M$29.8M2025

Every line of the income statement as filed: the last 2 fiscal years, latest first.3

Period ending2025-12-312024-12-31
Collaboration arrangement revenue$53.7M$0
Research and development$19.2M$48.1M
General and administrative$17.7M$18.0M
Total operating expenses$36.8M$66.1M
Income (loss) from operations$16.9M-$66.1M
Change in fair value of convertible notes$0$15.9M
Gain on sale of asset$11.7M$0
Other income (expense), net$1.2M$4.1M
Total other income (expense), net$12.9M$20.0M
Income (loss) before provision for income taxes and loss from equity method investment$29.8M-$46.1M
Provision for income taxes$0-$21.0K
Loss from equity method investment$0-$1.6M
Net income (loss)$29.8M-$47.7M
Net income (loss) per share- basic$2.42-$5.12
Net income (loss) per share- diluted$2.42-$6.58
Weighted-average common shares - basic12.3M shares9.3M shares
Weighted-average common shares - diluted12.3M shares9.7M shares

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Leadership

Who has led Q32 Bio Inc., and when. Pick a name to see everywhere that person has worked.

Board members and other officers (26)

Former names

  • Homology Medicines, Inc.Jan 6, 2016 to Mar 22, 20242

Timeline

  1. Mar 27, 2024New chief executive Jodie Pope Morrison becomes CEO11
  2. Mar 27, 2018New chief executive Arthur Tzianabos becomes CEO12

Filings

339 filings to the SEC since October 2021: 6 annual reports, 15 quarterly reports, 52 major events, 153 insider forms, 34 large holders, 79 other. The latest 20:

  1. Oct 14, 20264 EDGAR
  2. Oct 14, 20264 EDGAR
  3. Oct 14, 20264 EDGAR
  4. Oct 9, 2026SCHEDULE 13G EDGAR
  5. Sep 30, 20268-K EDGAR
  6. Sep 14, 20268-K EDGAR
  7. Aug 27, 20264 EDGAR
  8. Aug 27, 20264 EDGAR
  9. Aug 27, 20264 EDGAR
  10. Aug 14, 2026SCHEDULE 13G/A EDGAR
  11. Aug 14, 2026SCHEDULE 13G/A EDGAR
  12. Aug 5, 202610-Q EDGAR
  13. Aug 5, 20268-K EDGAR
  14. Jul 31, 2026SCHEDULE 13G/A EDGAR
  15. Jul 28, 2026EFFECT EDGAR
  16. Jul 28, 2026424B3 EDGAR
  17. Jul 21, 20264/A EDGAR
  18. Jul 21, 20264/A EDGAR
  19. Jul 21, 20264/A EDGAR
  20. Jul 21, 20264/A EDGAR

The 339 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 34 such filings since October 2021, the latest 10:

  1. Oct 9, 2026SCHEDULE 13G
  2. Aug 14, 2026SCHEDULE 13G/A
  3. Aug 14, 2026SCHEDULE 13G/A
  4. Jul 31, 2026SCHEDULE 13G/A
  5. Jul 20, 2026SCHEDULE 13D/A
  6. Jul 10, 2026SCHEDULE 13G
  7. Jul 6, 2026SCHEDULE 13G/A
  8. Jun 4, 2026SCHEDULE 13G
  9. Jun 4, 2026SCHEDULE 13G
  10. Jun 1, 2026SCHEDULE 13D/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 71. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Orbimed Advisors LLC4,127,987$52.6M1.0%+1,875,000
Boxer Capital Management, LLC3,149,310$40.1M3.0%New
Atlas Venture Life Science Advisors, LLC2,717,106$34.6M3.9%+625,000
Bvf Inc/il2,350,000$29.9M0.8%New
Ra Capital Management, L.P.2,332,457$29.7M0.3%New
Point72 Asset Management, L.P.1,173,396$14.9M0.0%New
Opaleye Management Inc.931,000$11.9M1.1%−325,228
Logos Global Management LP800,000$10.2M0.4%New
SummitTX Capital, L.P.733,774$9.3M0.2%New
Vanguard Capital Management LLC518,803$6.6M0.0%+212,402
Ikarian Capital, LLC430,000$5.5M0.9%New
Woodline Partners LP286,212$3.6M0.0%New
American Century Companies Inc272,752$3.5M0.0%+253,982
Sanofi244,083$3.1M0.6%No change
Acorn Capital Advisors, LLC216,171$2.8M0.8%−98,881
Renaissance Technologies LLC179,600$2.3M0.0%−27,315
Jane Street Group, LLC162,747$2.1M0.0%+97,148
Monimus Capital Management, LP132,036$1.7M0.4%−2,274
Boothbay Fund Management, LLC130,427$1.7M0.0%New
Geode Capital Management, LLC122,690$1.6M0.0%+4,538
Citadel Advisors LLC120,663$1.5M0.0%+105,182
BlackRock, Inc.118,507$1.5M0.0%+32,360
Marshall Wace, Llp67,045$854.2K0.0%+14,605
Vanguard Fiduciary Trust Co66,217$843.6K0.0%+16,222
Carlyle Group Inc.60,363$769.0K0.0%−1,042,378

13F reports cover disclosed long positions in U.S. stocks only.

Sources

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