KRRO — KORRO BIO INC
Reported value held$83.86M
Funds holding (latest)30
SectorHealth Care
Funds holding (Q2 2026)25
Institutional value$45.79M · 3.49M sh
New / Add / Cut / Exit4 / 14 / 6 / 0
Top-5 / Top-10 concentration73.2% / 89.8%
Institutional holdings change
Accumulating +21.7%
(+621.73K sh)
Institutional value change
Up +40.9%
As of Q2 2026, 25 SEC-registered investment managers reported holding KRRO (KORRO BIO INC) in their latest 13F filings, with a combined reported value of $45.79M across 3.49M shares. That is +21.7% by share count (+621.73K shares) versus the previous quarter, while reported value moved +40.9%. Ownership is concentrated: the five largest holders account for 73.2% of reported value and the top ten for 89.8%.
Compared with the prior quarter, 4 opened new positions, 14 added to existing stakes, 6 trimmed. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
KRRO 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 — 25 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Balyasny Asset Management history | 951.78K | $12.54M | 0.02% | Reduce |
| BlackRock Inc history | 817.62K | $10.78M | 0.00% | Add |
| AQR Capital Management history | 298.97K | $3.94M | 0.00% | Add |
| Geode Capital Management history | 296.87K | $3.91M | 0.00% | Add |
| Two Sigma Investments history | 178.07K | $2.35M | 0.00% | Add |
| JPMorgan Chase & Co history | 124.73K | $1.65M | 0.00% | New |
| Millennium Management history | 118.43K | $1.56M | 0.00% | Add |
| Goldman Sachs Group history | 116.98K | $1.54M | 0.00% | Add |
| Renaissance Technologies history | 110.52K | $1.46M | 0.00% | Reduce |
| UBS Group AG history | 105.45K | $1.39M | 0.00% | Add |
| Northern Trust Corp history | 88.09K | $1.16M | 0.00% | Add |
| Bank of America Corp history | 51.71K | $681.50K | 0.00% | New |
| Fidelity Management & Research (FMR) history | 38.98K | $513.69K | 0.00% | Hold |
| D. E. Shaw & Co history | 34.21K | $450.93K | 0.00% | New |
| BNY Mellon history | 31.73K | $418.20K | 0.00% | Add |
| Charles Schwab Investment Management history | 24.11K | $317.77K | 0.00% | Add |
| Morgan Stanley history | 22.50K | $296.56K | 0.00% | Reduce |
| Marshall Wace history | 19.06K | $251.21K | 0.00% | Reduce |
| Deutsche Bank AG history | 15.95K | $210.19K | 0.00% | Add |
| Citadel Advisors history | 12.40K | $163.43K | 0.00% | Reduce |
| Wells Fargo & Co history | 9.56K | $126.05K | 0.00% | Add |
| Citigroup Inc history | 5.17K | $68.13K | 0.00% | Add |
| Legal & General Investment Management America history | 1.08K | $14.26K | 0.00% | Add |
| PNC Financial Services history | 193 | $2.54K | 0.00% | Reduce |
| T. Rowe Price Associates history | 17.63K | $233 | 0.00% | New |
Q1 2026 — 21 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Balyasny Asset Management history | 1.04M | $11.77M | 0.02% | New |
| BlackRock Inc history | 460.01K | $5.21M | 0.00% | Add |
| Citadel Advisors history | 269.11K | $3.05M | 0.00% | Reduce |
| AQR Capital Management history | 267.75K | $3.03M | 0.00% | Add |
| Geode Capital Management history | 173.64K | $1.97M | 0.00% | Add |
| Two Sigma Investments history | 165.47K | $1.87M | 0.00% | Add |
| Renaissance Technologies history | 136.23K | $1.54M | 0.00% | Add |
| Millennium Management history | 63.61K | $720.02K | 0.00% | Reduce |
| Northern Trust Corp history | 57.70K | $653.19K | 0.00% | Add |
| Goldman Sachs Group history | 50.54K | $572.12K | 0.00% | Reduce |
| Morgan Stanley history | 41.12K | $465.51K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 38.90K | $440.35K | 0.00% | Add |
| Marshall Wace history | 34.34K | $388.76K | 0.00% | Add |
| BNY Mellon history | 21.73K | $245.98K | 0.00% | Add |
| UBS Group AG history | 21.68K | $245.37K | 0.00% | Add |
| Charles Schwab Investment Management history | 13.39K | $151.62K | 0.00% | Reduce |
| Deutsche Bank AG history | 10.54K | $119.36K | 0.00% | Reduce |
| Wells Fargo & Co history | 2.59K | $29.31K | 0.00% | Reduce |
| PNC Financial Services history | 830 | $9.40K | 0.00% | Add |
| Legal & General Investment Management America history | 526 | $5.95K | 0.00% | Hold |
| Citigroup Inc history | 308 | $3.49K | 0.00% | Reduce |
Q4 2025 — 23 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 489.64K | $3.92M | 0.00% | Add |
| BlackRock Inc history | 457.40K | $3.66M | 0.00% | Add |
| Citadel Advisors history | 352.03K | $2.82M | 0.00% | Add |
| Geode Capital Management history | 162.76K | $1.30M | 0.00% | Hold |
| Millennium Management history | 161.09K | $1.29M | 0.00% | Reduce |
| Two Sigma Investments history | 78.98K | $632.66K | 0.00% | Add |
| Renaissance Technologies history | 74.90K | $599.95K | 0.00% | Add |
| Morgan Stanley history | 69.73K | $558.52K | 0.00% | Reduce |
| Northern Trust Corp history | 55.64K | $445.68K | 0.00% | Reduce |
| Goldman Sachs Group history | 51.95K | $416.12K | 0.00% | Add |
| AQR Capital Management history | 40.65K | $325.58K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 37.86K | $303.24K | 0.00% | Reduce |
| UBS Group AG history | 20.00K | $160.16K | 0.00% | Reduce |
| Marshall Wace history | 19.77K | $158.37K | 0.00% | New |
| BNY Mellon history | 18.86K | $151.03K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 16.33K | $130.79K | 0.00% | Reduce |
| Deutsche Bank AG history | 12.76K | $102.19K | 0.00% | Add |
| Wells Fargo & Co history | 7.52K | $60.25K | 0.00% | Add |
| Bank of America Corp history | 5.90K | $47.23K | 0.00% | Add |
| JPMorgan Chase & Co history | 2.84K | $22.73K | 0.00% | Reduce |
| PNC Financial Services history | 740 | $5.93K | 0.00% | Reduce |
| Citigroup Inc history | 607 | $4.86K | 0.00% | Add |
| Legal & General Investment Management America history | 526 | $4.21K | 0.00% | Hold |
Q3 2025 — 23 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 563.68K | $26.99M | 0.00% | Reduce |
| Point72 Asset Management history | 531.97K | $25.48M | 0.04% | Reduce |
| BlackRock Inc history | 446.70K | $21.39M | 0.00% | Reduce |
| Vanguard Group history | 395.66K | $18.95M | 0.00% | Add |
| Millennium Management history | 260.33K | $12.47M | 0.01% | Add |
| JPMorgan Chase & Co history | 199.25K | $9.54M | 0.00% | Add |
| Morgan Stanley history | 167.49K | $8.02M | 0.00% | Add |
| Geode Capital Management history | 162.93K | $7.80M | 0.00% | Add |
| Citadel Advisors history | 153.93K | $7.37M | 0.00% | Reduce |
| Two Sigma Investments history | 64.45K | $3.09M | 0.01% | Add |
| Northern Trust Corp history | 57.27K | $2.74M | 0.00% | Reduce |
| UBS Group AG history | 53.10K | $2.54M | 0.00% | Add |
| AQR Capital Management history | 48.41K | $2.32M | 0.00% | New |
| Renaissance Technologies history | 40.40K | $1.93M | 0.00% | Reduce |
| Charles Schwab Investment Management history | 23.10K | $1.11M | 0.00% | Add |
| BNY Mellon history | 19.31K | $924.88K | 0.00% | Add |
| Goldman Sachs Group history | 15.68K | $750.96K | 0.00% | New |
| Wells Fargo & Co history | 5.17K | $247.59K | 0.00% | Add |
| Bank of America Corp history | 4.70K | $225.28K | 0.00% | Reduce |
| Deutsche Bank AG history | 3.73K | $178.68K | 0.00% | Add |
| PNC Financial Services history | 2.91K | $139.55K | 0.00% | New |
| Legal & General Investment Management America history | 526 | $25.19K | 0.00% | Hold |
| Citigroup Inc history | 337 | $16.14K | 0.00% | Reduce |
Q2 2025 — 30 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 639.22K | $7.98M | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 639.22K | $7.98M | 0.00% | Reduce |
| Point72 Asset Management history | 540.07K | $6.75M | 0.01% | Add |
| Point72 Asset Management history | 540.07K | $6.75M | 0.01% | Add |
| BlackRock Inc history | 461.89K | $5.77M | 0.00% | Add |
| BlackRock Inc history | 461.89K | $5.77M | 0.00% | Add |
| Vanguard Group history | 386.74K | $4.83M | 0.00% | Add |
| Citadel Advisors history | 350.65K | $4.38M | 0.00% | Add |
| Citadel Advisors history | 350.65K | $4.38M | 0.00% | Add |
| Millennium Management history | 255.68K | $3.19M | 0.00% | Add |
| Geode Capital Management history | 155.39K | $1.94M | 0.00% | Add |
| Morgan Stanley history | 81.73K | $1.02M | 0.00% | Add |
| Morgan Stanley history | 81.73K | $1.02M | 0.00% | Add |
| Northern Trust Corp history | 57.87K | $722.77K | 0.00% | Reduce |
| Renaissance Technologies history | 45.70K | $570.79K | 0.00% | New |
| Renaissance Technologies history | 45.70K | $570.79K | 0.00% | New |
| Two Sigma Investments history | 36.75K | $458.96K | 0.00% | New |
| Two Sigma Investments history | 36.75K | $458.96K | 0.00% | New |
| Bank of America Corp history | 28.16K | $351.67K | 0.00% | Add |
| D. E. Shaw & Co history | 24.38K | $304.54K | 0.00% | New |
| UBS Group AG history | 18.58K | $232.08K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 17.78K | $222.02K | 0.00% | Reduce |
| BNY Mellon history | 16.52K | $206.35K | 0.00% | Add |
| Wells Fargo & Co history | 4.33K | $54.12K | 0.00% | Add |
| Deutsche Bank AG history | 3.62K | $45.16K | 0.00% | Hold |
| Deutsche Bank AG history | 3.62K | $45.16K | 0.00% | Hold |
| JPMorgan Chase & Co history | 3.17K | $39.59K | 0.00% | Add |
| JPMorgan Chase & Co history | 3.17K | $39.59K | 0.00% | Add |
| Citigroup Inc history | 2.48K | $31.02K | 0.00% | Reduce |
| Legal & General Investment Management America history | 526 | $6.57K | 0.00% | Reduce |
Q1 2025 — 28 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 643.27K | $11.20M | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | 643.27K | $11.20M | 0.00% | Hold |
| Point72 Asset Management history | 520.89K | $9.07M | 0.02% | Add |
| Point72 Asset Management history | 520.89K | $9.07M | 0.02% | Add |
| BlackRock Inc history | 441.43K | $7.69M | 0.00% | Reduce |
| BlackRock Inc history | 441.43K | $7.69M | 0.00% | Reduce |
| Vanguard Group history | 381.80K | $6.65M | 0.00% | Reduce |
| Citadel Advisors history | 253.25K | $4.41M | 0.00% | Reduce |
| Citadel Advisors history | 253.25K | $4.41M | 0.00% | Reduce |
| Geode Capital Management history | 140.22K | $2.44M | 0.00% | Add |
| Millennium Management history | 108.87K | $1.90M | 0.00% | Add |
| Franklin Resources history | 91.70K | $1.60M | 0.00% | Hold |
| UBS Group AG history | 74.21K | $1.29M | 0.00% | Add |
| Northern Trust Corp history | 58.21K | $1.01M | 0.00% | Reduce |
| Morgan Stanley history | 43.10K | $750.37K | 0.00% | Add |
| Morgan Stanley history | 43.10K | $750.37K | 0.00% | Add |
| Goldman Sachs Group history | 20.94K | $364.63K | 0.00% | Reduce |
| Goldman Sachs Group history | 20.94K | $364.63K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 18.29K | $318.39K | 0.00% | Add |
| BNY Mellon history | 16.11K | $280.52K | 0.00% | Add |
| Citigroup Inc history | 4.83K | $84.11K | 0.00% | Reduce |
| Bank of America Corp history | 4.54K | $79.06K | 0.00% | Reduce |
| Wells Fargo & Co history | 3.79K | $66.04K | 0.00% | Add |
| Deutsche Bank AG history | 3.62K | $62.95K | 0.00% | Reduce |
| Deutsche Bank AG history | 3.62K | $62.95K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 3.07K | $53.43K | 0.00% | Add |
| JPMorgan Chase & Co history | 3.07K | $53.43K | 0.00% | Add |
| Legal & General Investment Management America history | 566 | $9.85K | 0.00% | Reduce |
New Positions (Q2 2026)
- JPMorgan Chase & Co 124.73K sh · $1.65M
- Bank of America Corp 51.71K sh · $681.50K
- D. E. Shaw & Co 34.21K sh · $450.93K
- T. Rowe Price Associates 17.63K sh · $233
Fully Exited (vs previous quarter)
No tracked fund fully exited this quarter.
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 | Q4 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Balyasny Asset Management | 951.78K | 1.04M | — | — | — | — | 5.78K | — | — | 3.77K | — |
| BlackRock Inc | 817.62K | 460.01K | 457.40K | 446.70K | 461.89K | 441.43K | 452.45K | 449.95K | — | — | — |
| AQR Capital Management | 298.97K | 267.75K | 40.65K | 48.41K | — | — | — | — | — | — | — |
| Geode Capital Management | 296.87K | 173.64K | 162.76K | 162.93K | 155.39K | 140.22K | 137.09K | 137.50K | 139.66K | 58.24K | 57.37K |
| Two Sigma Investments | 178.07K | 165.47K | 78.98K | 64.45K | 36.75K | — | — | — | 6.36K | — | — |
| JPMorgan Chase & Co | 124.73K | — | 2.84K | 199.25K | 3.17K | 3.07K | 2.85K | 12.39K | 2.61K | 13.16K | 18 |
| Millennium Management | 118.43K | 63.61K | 161.09K | 260.33K | 255.68K | 108.87K | 95.81K | 72.26K | 84.20K | 60.89K | — |
| Goldman Sachs Group | 116.98K | 50.54K | 51.95K | 15.68K | — | 20.94K | 23.30K | 12.81K | 8.99K | 45.17K | — |
| Renaissance Technologies | 110.52K | 136.23K | 74.90K | 40.40K | 45.70K | — | — | — | — | 9.89K | 9.89K |
| UBS Group AG | 105.45K | 21.68K | 20.00K | 53.10K | 18.58K | 74.21K | 73.04K | 9.73K | 4.41K | 271 | 637 |
| Northern Trust Corp | 88.09K | 57.70K | 55.64K | 57.27K | 57.87K | 58.21K | 60.55K | 57.83K | 15.28K | 10.29K | 10.51K |
| Bank of America Corp | 51.71K | — | 5.90K | 4.70K | 28.16K | 4.54K | 7.04K | 6.46K | 4.92K | 5.03K | 4.23K |
| Fidelity Management & Research (FMR) | 38.98K | 38.90K | 37.86K | 563.68K | 639.22K | 643.27K | 641.74K | 579.56K | 639.12K | 727.21K | 727.21K |
| D. E. Shaw & Co | 34.21K | — | — | — | 24.38K | — | — | — | — | — | — |
| BNY Mellon | 31.73K | 21.73K | 18.86K | 19.31K | 16.52K | 16.11K | 14.79K | 14.35K | 19.15K | — | — |
| Charles Schwab Investment Management | 24.11K | 13.39K | 16.33K | 23.10K | 17.78K | 18.29K | 17.50K | 17.57K | 17.57K | 3.15K | — |
| Morgan Stanley | 22.50K | 41.12K | 69.73K | 167.49K | 81.73K | 43.10K | 28.56K | 23.36K | 13.02K | 7.67K | 5.97K |
| Marshall Wace | 19.06K | 34.34K | 19.77K | — | — | — | 18.46K | — | 9.10K | 13.41K | — |
| Deutsche Bank AG | 15.95K | 10.54K | 12.76K | 3.73K | 3.62K | 3.62K | 4.11K | 3.17K | — | — | — |
| Citadel Advisors | 12.40K | 269.11K | 352.03K | 153.93K | 350.65K | 253.25K | 369.73K | 529.17K | 529.17K | 529.18K | 529.21K |
▲ 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