QTTB — Q32 BIO INC
Reported value held$34.16M
Funds holding (latest)27
SectorHealth Care
Funds holding (Q2 2026)14
Institutional value$24.28M · 1.91M sh
New / Add / Cut / Exit4 / 6 / 3 / 1
Top-5 / Top-10 concentration90.0% / 98.8%
Institutional holdings change
Accumulating +240.5%
(+1.35M sh)
Institutional value change
Up +575.6%
As of Q2 2026, 14 SEC-registered investment managers reported holding QTTB (Q32 BIO INC) in their latest 13F filings, with a combined reported value of $24.28M across 1.91M shares. That is +240.5% by share count (+1.35M shares) versus the previous quarter, while reported value moved +575.6%. Ownership is concentrated: the five largest holders account for 90.0% of reported value and the top ten for 98.8%.
Compared with the prior quarter, 4 opened new positions, 6 added to existing stakes, 3 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
QTTB is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 14 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Point72 Asset Management history | 1.17M | $14.95M | 0.02% | New |
| Renaissance Technologies history | 179.60K | $2.29M | 0.00% | Reduce |
| Geode Capital Management history | 122.69K | $1.56M | 0.00% | Add |
| Citadel Advisors history | 120.66K | $1.54M | 0.00% | Add |
| BlackRock Inc history | 118.51K | $1.51M | 0.00% | Add |
| Marshall Wace history | 67.05K | $854.15K | 0.00% | Add |
| Two Sigma Investments history | 49.58K | $631.67K | 0.00% | Add |
| Northern Trust Corp history | 23.63K | $301.06K | 0.00% | Reduce |
| UBS Group AG history | 15.01K | $191.20K | 0.00% | Add |
| Balyasny Asset Management history | 12.34K | $157.24K | 0.00% | New |
| Millennium Management history | 10.93K | $139.22K | 0.00% | New |
| Morgan Stanley history | 6.46K | $82.26K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 3.39K | $43.16K | 0.00% | Hold |
| Citigroup Inc history | 2.89K | $36.79K | 0.00% | New |
Q1 2026 — 11 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Renaissance Technologies history | 206.91K | $1.33M | 0.00% | Add |
| Geode Capital Management history | 118.15K | $758.74K | 0.00% | Add |
| BlackRock Inc history | 86.15K | $553.06K | 0.00% | Add |
| Marshall Wace history | 52.44K | $336.66K | 0.00% | New |
| Two Sigma Investments history | 42.35K | $271.86K | 0.00% | Reduce |
| Northern Trust Corp history | 25.03K | $160.71K | 0.00% | Hold |
| Citadel Advisors history | 15.48K | $99.39K | 0.00% | Reduce |
| Morgan Stanley history | 9.56K | $61.38K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 3.40K | $21.83K | 0.00% | Add |
| UBS Group AG history | 270 | $1.73K | 0.00% | Reduce |
| Wells Fargo & Co history | 84 | $539 | 0.00% | New |
Q4 2025 — 13 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 321.05K | $1.07M | 0.00% | Add |
| Geode Capital Management history | 106.11K | $352.39K | 0.00% | Add |
| Renaissance Technologies history | 99.60K | $330.67K | 0.00% | Add |
| BlackRock Inc history | 59.93K | $198.97K | 0.00% | Reduce |
| Millennium Management history | 51.27K | $170.21K | 0.00% | Reduce |
| Two Sigma Investments history | 46.83K | $155.46K | 0.00% | Add |
| Citadel Advisors history | 45.73K | $151.82K | 0.00% | Add |
| Northern Trust Corp history | 25.03K | $83.11K | 0.00% | Reduce |
| UBS Group AG history | 13.61K | $45.17K | 0.00% | Add |
| Morgan Stanley history | 5.48K | $18.19K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 3.36K | $11.17K | 0.00% | Reduce |
| Bank of America Corp history | 1.03K | $3.44K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 324 | $1.08K | 0.00% | Add |
Q3 2025 — 14 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 295.41K | $584.91K | 0.00% | Add |
| Millennium Management history | 104.77K | $207.45K | 0.00% | Reduce |
| BlackRock Inc history | 93.00K | $184.15K | 0.00% | Reduce |
| Geode Capital Management history | 88.50K | $175.28K | 0.00% | Add |
| Renaissance Technologies history | 47.30K | $93.65K | 0.00% | Reduce |
| Northern Trust Corp history | 31.95K | $63.27K | 0.00% | Add |
| Two Sigma Investments history | 31.51K | $62.38K | 0.00% | New |
| Fidelity Management & Research (FMR) history | 15.87K | $31.42K | 0.00% | Reduce |
| Morgan Stanley history | 11.34K | $22.46K | 0.00% | Reduce |
| Citadel Advisors history | 10.12K | $20.03K | 0.00% | Reduce |
| UBS Group AG history | 5.25K | $10.39K | 0.00% | Reduce |
| Bank of America Corp history | 1.52K | $3.02K | 0.00% | Reduce |
| Citigroup Inc history | 236 | $467 | 0.00% | Reduce |
| JPMorgan Chase & Co history | 4 | $8 | 0.00% | New |
Q2 2025 — 16 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 269.43K | $401.45K | 0.00% | Reduce |
| BlackRock Inc history | 178.68K | $266.23K | 0.00% | Reduce |
| Millennium Management history | 130.38K | $194.26K | 0.00% | New |
| Renaissance Technologies history | 77.00K | $114.73K | 0.00% | New |
| Goldman Sachs Group history | 63.54K | $94.67K | 0.00% | Add |
| Geode Capital Management history | 61.60K | $91.83K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 42.44K | $63.23K | 0.00% | Reduce |
| AQR Capital Management history | 26.53K | $39.53K | 0.00% | Reduce |
| Northern Trust Corp history | 26.06K | $38.83K | 0.00% | Reduce |
| Morgan Stanley history | 18.65K | $27.79K | 0.00% | Add |
| Marshall Wace history | 16.93K | $25.22K | 0.00% | New |
| UBS Group AG history | 12.58K | $18.74K | 0.00% | Reduce |
| Citadel Advisors history | 10.90K | $16.24K | 0.00% | New |
| Bank of America Corp history | 2.20K | $3.27K | 0.00% | Reduce |
| Citigroup Inc history | 1.82K | $2.71K | 0.00% | Reduce |
| Wells Fargo & Co history | 139 | $207 | 0.00% | Reduce |
Q1 2025 — 17 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 457.37K | $754.66K | 0.00% | Reduce |
| Vanguard Group history | 309.21K | $510.20K | 0.00% | Reduce |
| Geode Capital Management history | 137.51K | $226.95K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 62.39K | $102.94K | 0.00% | Add |
| Northern Trust Corp history | 60.13K | $99.22K | 0.00% | Hold |
| Goldman Sachs Group history | 44.37K | $73.22K | 0.00% | Add |
| AQR Capital Management history | 41.30K | $68.15K | 0.00% | New |
| UBS Group AG history | 33.43K | $55.16K | 0.00% | Reduce |
| Deutsche Bank AG history | 25.02K | $41.28K | 0.00% | Hold |
| BNY Mellon history | 16.19K | $26.72K | 0.00% | Add |
| Morgan Stanley history | 14.66K | $24.18K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 14.19K | $23.41K | 0.00% | Reduce |
| Bank of America Corp history | 7.29K | $12.03K | 0.00% | Reduce |
| Citigroup Inc history | 4.40K | $7.26K | 0.00% | Reduce |
| Wells Fargo & Co history | 3.66K | $6.04K | 0.00% | Add |
| JPMorgan Chase & Co history | 2.93K | $4.83K | 0.00% | Add |
| Legal & General Investment Management America history | 523 | $863 | 0.00% | Hold |
New Positions (Q2 2026)
- Point72 Asset Management 1.17M sh · $14.95M
- Balyasny Asset Management 12.34K sh · $157.24K
- Millennium Management 10.93K sh · $139.22K
- Citigroup Inc 2.89K sh · $36.79K
Fully Exited (vs previous quarter)
- Wells Fargo & Co sold 84 sh · $539
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 |
|---|---|---|---|---|---|---|---|---|---|---|
| Point72 Asset Management | 1.17M | — | — | — | — | — | — | 76.69K | — | — |
| Renaissance Technologies | 179.60K | 206.91K | 99.60K | 47.30K | 77.00K | — | — | 16.16K | 14.76K | — |
| Geode Capital Management | 122.69K | 118.15K | 106.11K | 88.50K | 61.60K | 137.51K | 133.26K | 131.77K | 107.65K | 17.97K |
| Citadel Advisors | 120.66K | 15.48K | 45.73K | 10.12K | 10.90K | — | 10.20K | — | 18.28K | 11.21K |
| BlackRock Inc | 118.51K | 86.15K | 59.93K | 93.00K | 178.68K | 457.37K | 467.44K | 408.66K | — | — |
| Marshall Wace | 67.05K | 52.44K | — | — | 16.93K | — | — | — | — | — |
| Two Sigma Investments | 49.58K | 42.35K | 46.83K | 31.51K | — | — | 53.17K | — | — | — |
| Northern Trust Corp | 23.63K | 25.03K | 25.03K | 31.95K | 26.06K | 60.13K | 60.19K | 61.26K | — | — |
| UBS Group AG | 15.01K | 270 | 13.61K | 5.25K | 12.58K | 33.43K | 47.98K | 3.64K | 2.65K | 940 |
| Balyasny Asset Management | 12.34K | — | — | — | — | — | — | — | — | — |
| Millennium Management | 10.93K | — | 51.27K | 104.77K | 130.38K | — | 10.72K | 100.34K | — | — |
| Morgan Stanley | 6.46K | 9.56K | 5.48K | 11.34K | 18.65K | 14.66K | 72.86K | 16.52K | 6.76K | 723 |
| Fidelity Management & Research (FMR) | 3.39K | 3.40K | 3.36K | 15.87K | 42.44K | 62.39K | 49.18K | 426.30K | 179.64K | 3.51K |
| Citigroup Inc | 2.89K | — | — | 236 | 1.82K | 4.40K | 4.70K | 4.39K | 1.35K | — |
| JPMorgan Chase & Co | — | — | 324 | 4 | — | 2.93K | 2.83K | 3.69K | 2.62K | 51 |
| Bank of America Corp | — | — | 1.03K | 1.52K | 2.20K | 7.29K | 11.93K | 11.45K | 13.29K | 9.36K |
| Vanguard Group | — | — | 321.05K | 295.41K | 269.43K | 309.21K | 316.57K | 285.42K | 138.37K | 107.75K |
| Wells Fargo & Co | — | 84 | — | — | 139 | 3.66K | 3.58K | 2.78K | 2.73K | 79 |
| Goldman Sachs Group | — | — | — | — | 63.54K | 44.37K | 18.42K | 12.43K | 11.94K | — |
| Deutsche Bank AG | — | — | — | — | — | 25.02K | 25.02K | 3.13K | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details