Q32 Bio Inc
$15.03-6.9%
+$175.0M
Net Activity
+138.00% total shares
Institutions Holding
72
Popularity Rank
#5307
Avg Weight
0.19%
Total Value
$285.9M
Market Cap
$185.1M
72 institutions currently hold QTTB, with 46 net buyers and 23 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
23
Net Buying Institutions
46
Top 5 by Value
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Across its top 20 institutional holders, QTTB's holder base skews toward low-concentration, high-turnover investors on average (avg. concentration score 21/100, avg. turnover score 60/100).
QTTB ranks #5307 out of 37501 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
72 institutions disclose a position in QTTB, but none treat it as a major bet — even Atlas Venture Life Science Advisors, LLC, its most concentrated holder, allocates just 3.9% of its own portfolio to it.
Orbimed Advisors LLC has added to its QTTB position for two straight quarters, increasing it by $45.1M to reach $52.6M today.
QTTB is down 6.9% today, but institutions show net buying of $175.0M this quarter — a divergence between today's price move and the underlying institutional flow.
QTTB posted net income of $33.8M over the trailing twelve months, and currently trades at a P/E of 5.5.
+$195.8M
Total Buy Value
$24.2M
Total Sell Value
46
Net Buyers
23
Net Sellers
QTTB
Q2 2026
Top 5 Institutional Movers
+$40.1M
+$38.1M
+$29.9M
+$29.7M
QTTB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
2
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Sirenia Capital Management LP | 13G/A | 2026-08-14 | 0.0% |
| Point72 Asset Management, L.P. | 13G/A | 2026-08-14 | 5.0% |
| Opaleye Management Inc. | 13G/A | 2026-07-31 | 5.5% |
| ORBIMED ADVISORS LLC | 13D/A | 2026-07-20 | 13.9% |
| The Carlyle Group Inc. | 13G/A | 2026-07-06 | 4.1% |
4
Filings (14d)
Q32 Bio (ticker: QTTB) put out a press release on August 5, 2026, covering its Q2 2026 financial results (quarter ending June 30) along with a corporate update. That release is attached as Exhibit 99.1 to this 8-K. Note that the 8-K itself just tells you the announcement exists — the actual numbers are in the exhibit.
View Full Filing (SEC EDGAR)Q32 Bio (ticker QTTB) entered into an underwriting agreement on July 14, 2026, to sell about 6 million shares at $18.25 each and about 4.9 million pre-funded warrants at $18.2499 each, raising roughly $187.6 million (or up to $215.8 million if underwriters take the extra shares). The company will use the proceeds for working capital and to fund research, clinical development, and commercialization, including advancing its drug bempikibart into future trials. The offering is expected to close on July 16, 2026.
View Full Filing (SEC EDGAR)Q32 Bio Inc. issued a press release on July 13, 2026, announcing positive 36-week results from its SIGNAL-AA clinical trial. The disclosure was made under Regulation FD.
View Full Filing (SEC EDGAR)Q32 Bio Inc. announced topline results from Part B of its SIGNAL-AA Phase 2a clinical trial of bempikibart for alopecia areata. The company filed a presentation related to the announcement as an exhibit to this 8-K with the SEC. The filing does not include the specific data, but the presentation is available for review.
View Full Filing (SEC EDGAR)746964105
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,839
Total reported value
$1.5T
Held by 4839 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,763
Total reported value
$1.2T
Held by 4763 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,691
Total reported value
$473.3B
Held by 4691 institutions — one of the most-tracked stocks on AlphaSMO
Access QTTB's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/QTTBCLI
npx alphasmo stocks get QTTB