KRRO · Korro Bio, Inc. · Held by Funds
$9.79
+0.50 (+5.38%)
At close · Oct 22
Return incl. dividend (before tax)
Market Cap
$136.80M
Shares
14.73M
Volume · Oct 22
48.18K
Avg daily vol (3M)
149.92K
Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this exact listed security, matched by CUSIP. Each row is one fund position with its size, value and weight in that fund.
Fund Ownership of KRRO by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 8.25% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 1.72% | 253,387 |
| Index ETFs | 6.53% | 961,605 |
| Active ETFs | 0.09% | 13,238 |
| Active funds | 1.10% | 161,715 |
| Unclassified | 0.46% | 67,495 |
| All registered funds | 9.90% | 1,457,440 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
Funds holding KRRO
94 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 311,262 | $4,102,433 | 0.00% | Long | 2026-06-30 | |
| iShares Russell 2000 ETF | IWM | 262,918 | $3,465,259 | 0.00% | Long | 2026-06-30 | |
| VANGUARD EXTENDED MARKET INDEX FUND | — | 135,396 | $1,784,519 | 0.00% | Long | 2026-06-30 | |
| VANGUARD STRATEGIC SMALL-CAP EQUITY FUND | VSTCX | 106,395 | $1,402,286 | 0.04% | Long | 2026-06-30 | |
| Fidelity Small Cap Index Fund | FSSNX | 121,936 | $1,264,476 | 0.00% | Long | 2026-07-31 | |
| iShares Russell 2000 Value ETF | IWN | 78,719 | $1,037,516 | 0.01% | Long | 2026-06-30 | |
| F/m Emerald Life Sciences Innovation ETF | LFSC | 62,855 | $842,886 | 0.80% | Long | 2026-05-31 | |
| iShares Russell 2000 Growth ETF | IWO | 56,704 | $747,359 | 0.00% | Long | 2026-06-30 | |
| Fidelity Extended Market Index Fund | FSMAX | 35,064 | $470,208 | 0.00% | Long | 2026-05-31 | |
| VANGUARD RUSSELL 2000 INDEX FUND | — | 34,066 | $456,825 | 0.00% | Long | 2026-05-31 | |
| iShares Micro-Cap ETF | IWC | 34,046 | $448,726 | 0.03% | Long | 2026-06-30 | |
| VANGUARD HEALTH CARE INDEX FUND | — | 21,772 | $291,963 | 0.00% | Long | 2026-05-31 | |
| Schwab Small-Cap Index Fund | SWSSX | 26,870 | $278,642 | 0.00% | Long | 2026-07-31 | |
| Master Small Cap Index Series | — | 18,948 | $249,735 | 0.00% | Long | 2026-06-30 | |
| SMALL COMPANY GROWTH PORTFOLIO | — | 14,620 | $192,692 | 0.01% | Long | 2026-06-30 | |
| iShares Core S&P Total U.S. Stock Market ETF | ITOT | 14,179 | $186,879 | 0.00% | Long | 2026-06-30 | |
| Fidelity Small Cap Value Index Fund | FISVX | 12,814 | $168,889 | 0.01% | Long | 2026-06-30 | |
| Nuveen Small Cap Blend Index Fund | — | 14,880 | $154,306 | 0.00% | Long | 2026-07-31 | |
| Fidelity Total Market Index Fund | FSKAX | 11,313 | $151,707 | 0.00% | Long | 2026-05-31 | |
| EQ/2000 Managed Volatility Portfolio | — | 11,376 | $149,936 | 0.00% | Long | 2026-06-30 | |
| Fidelity Nasdaq Composite Index Fund | FNCMX | 10,496 | $140,751 | 0.00% | Long | 2026-05-31 | |
| Fidelity Series Total Market Index Fund | FCFMX | 9,938 | $133,269 | 0.00% | Long | 2026-05-31 | |
| T. Rowe Price Extended Equity Market Index Fund | PEXMX | 8,500 | $112,030 | 0.01% | Long | 2026-06-30 | |
| Dimensional U.S. Small Cap ETF | DFAS | 9,978 | $103,472 | 0.00% | Long | 2026-07-31 | |
| EQ/Small Company Index Portfolio | — | 7,000 | $92,260 | 0.00% | Long | 2026-06-30 | |
| Small Cap Index Fund | NSIDX | 5,888 | $77,604 | 0.00% | Long | 2026-06-30 | |
| Fidelity ZERO Total Market Index Fund | FZROX | 7,460 | $77,360 | 0.00% | Long | 2026-07-31 | |
| Diversified Equity Alpha Master Portfolio | — | 5,321 | $70,131 | 0.00% | Long | 2026-06-30 | |
| EQ/AB Small Cap Growth Portfolio | — | 5,180 | $68,272 | 0.00% | Long | 2026-06-30 | |
| VANGUARD RUSSELL 2000 VALUE INDEX FUND | — | 5,064 | $67,908 | 0.01% | Long | 2026-05-31 | |
| Goldman Sachs Absolute Return Tracker Fund | — | 4,883 | $64,358 | 0.00% | Long | 2026-06-30 | |
| VANGUARD BALANCED INDEX FUND | — | 4,762 | $62,763 | 0.00% | Long | 2026-06-30 | |
| Avantis U.S. Small Cap Equity ETF | AVSC | 4,640 | $62,222 | 0.00% | Long | 2026-05-31 | |
| LVIP State Street Small-Cap Index Fund | — | 4,500 | $59,310 | 0.00% | Long | 2026-06-30 | |
| Global X Russell 2000 ETF | RSSL | 5,318 | $55,148 | 0.00% | Long | 2026-07-31 | |
| Fidelity ZERO Extended Market Index Fund | FZIPX | 4,390 | $45,524 | 0.00% | Long | 2026-07-31 | |
| Small-Cap Index Portfolio | — | 3,414 | $44,997 | 0.00% | Long | 2026-06-30 | |
| STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO | SSMHX | 3,400 | $44,812 | 0.00% | Long | 2026-06-30 | |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | — | 3,358 | $44,258 | 0.00% | Long | 2026-06-30 | |
| iShares Russell 3000 ETF | IWV | 3,244 | $42,756 | 0.00% | Long | 2026-06-30 | |
| Bridge Builder Small/Mid Cap Value Fund | BBVSX | 2,830 | $37,299 | 0.00% | Long | 2026-06-30 | |
| ATM Small Cap Managed Volatility Portfolio | — | 2,411 | $31,777 | 0.00% | Long | 2026-06-30 | |
| Small Cap Index Fund | VCSLX | 2,289 | $30,695 | 0.00% | Long | 2026-05-31 | |
| 1290 VT Micro Cap Portfolio | — | 2,272 | $29,945 | 0.01% | Long | 2026-06-30 | |
| NVIT Small Cap Index Fund | — | 2,271 | $29,932 | 0.00% | Long | 2026-06-30 | |
| Fidelity Small Cap Growth Index Fund | FECGX | 1,913 | $25,213 | 0.00% | Long | 2026-06-30 | |
| DWS Small Cap Index VIP | — | 1,744 | $22,986 | 0.00% | Long | 2026-06-30 | |
| T. Rowe Price Small-Cap Index Fund | — | 1,679 | $22,129 | 0.00% | Long | 2026-06-30 | |
| Fidelity Flex Small Cap Index Fund | FLXSX | 1,951 | $20,232 | 0.00% | Long | 2026-07-31 | |
| BlackRock Small Cap Index V.I. Fund | — | 1,530 | $20,165 | 0.00% | Long | 2026-06-30 |
Showing 1–50 of 94 positions
Key facts
CIK
1703647
CUSIP
500946108
13F (30d)
12 filings
12 filers
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