MBX · MBX Biosciences, Inc. · Held by Funds
$57.50
+0.95 (+1.68%)
At close · Oct 2
Return incl. dividend (before tax)
Market Cap
$2.58B
Shares
48.16M
Volume · Oct 1
434.15K
Avg daily vol (3M)
566.15K
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.
Funds holding MBX
206 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 1,135,375 | $62,672,700 | 0.00% | Long | 2026-06-30 | |
| Fidelity Advisor Biotechnology Fund | — | 817,600 | $53,904,368 | 2.45% | Long | 2026-07-31 | |
| Eventide Healthcare & Life Sciences Fund | — | 873,492 | $48,216,758 | 2.70% | Long | 2026-06-30 | |
| iShares Russell 2000 ETF | IWM | 796,629 | $43,973,921 | 0.05% | Long | 2026-06-30 | |
| Fidelity Stock Selector Small Cap Fund | — | 636,100 | $41,938,073 | 0.57% | Long | 2026-07-31 | |
| T. Rowe Price Health Sciences Fund, Inc. | — | 586,309 | $32,364,257 | 0.27% | Long | 2026-06-30 | |
| Fidelity Small Cap Growth Fund | — | 416,420 | $27,454,571 | 0.31% | Long | 2026-07-31 | |
| Fidelity Series Small Cap Opportunities Fund | FSOPX | 365,200 | $24,077,636 | 0.51% | Long | 2026-07-31 | |
| Fidelity Small Cap Index Fund | FSSNX | 339,492 | $22,382,708 | 0.07% | Long | 2026-07-31 | |
| Fidelity Advisor Health Care Fund | — | 328,000 | $21,625,040 | 0.69% | Long | 2026-07-31 | |
| Select Health Care Portfolio | — | 600,000 | $18,882,000 | 0.33% | Long | 2026-05-31 | |
| Fidelity Fund | — | 321,100 | $17,724,720 | 0.20% | Long | 2026-06-30 | |
| VANGUARD EXTENDED MARKET INDEX FUND | — | 305,998 | $16,891,090 | 0.02% | Long | 2026-06-30 | |
| VIP Contrafund Portfolio | — | 286,900 | $15,836,880 | 0.05% | Long | 2026-06-30 | |
| iShares Russell 2000 Growth ETF | IWO | 286,482 | $15,813,806 | 0.10% | Long | 2026-06-30 | |
| Fidelity Small Cap Growth K6 Fund | FOCSX | 216,210 | $14,254,725 | 0.31% | Long | 2026-07-31 | |
| Fidelity Small Cap Discovery Fund | FSCRX | 190,200 | $12,539,886 | 0.55% | Long | 2026-07-31 | |
| State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF | XPH | 210,962 | $11,645,102 | 2.72% | Long | 2026-06-30 | |
| iShares Biotechnology ETF | IBB | 207,795 | $11,470,284 | 0.13% | Long | 2026-06-30 | |
| Fidelity Series Small Cap Discovery Fund | FJACX | 166,100 | $10,950,973 | 0.56% | Long | 2026-07-31 | |
| BlackRock Health Sciences Opportunities Portfolio | — | 333,350 | $10,490,525 | 0.18% | Long | 2026-05-29 | |
| BlackRock Health Sciences Term Trust | BMEZ | 128,549 | $7,095,905 | 0.66% | Long | 2026-06-30 | |
| Fidelity Enhanced Small Cap Core ETF | FESM | 121,515 | $6,707,628 | 0.12% | Long | 2026-06-30 | |
| THE HARTFORD SMALL COMPANY FUND | — | 101,462 | $6,689,390 | 0.99% | Long | 2026-07-31 | |
| Driehaus Micro Cap Growth Fund | DMCRX | 118,759 | $6,555,497 | 1.10% | Long | 2026-06-30 | |
| VIP Health Care Portfolio | — | 105,000 | $5,796,000 | 0.50% | Long | 2026-06-30 | |
| iShares Micro-Cap ETF | IWC | 103,960 | $5,738,592 | 0.38% | Long | 2026-06-30 | |
| Franklin Biotechnology Discovery Fund | — | 85,528 | $5,638,861 | 0.49% | Long | 2026-07-31 | |
| Dimensional U.S. Small Cap ETF | DFAS | 75,910 | $5,004,746 | 0.03% | Long | 2026-07-31 | |
| Schwab Small-Cap Index Fund | SWSSX | 75,383 | $4,970,001 | 0.07% | Long | 2026-07-31 | |
| Fidelity Small Cap Stock Fund | FSLCX | 70,600 | $4,654,658 | 0.35% | Long | 2026-07-31 | |
| VANGUARD RUSSELL 2000 INDEX FUND | — | 146,357 | $4,605,855 | 0.03% | Long | 2026-05-31 | |
| Fidelity Extended Market Index Fund | FSMAX | 130,156 | $4,096,009 | 0.01% | Long | 2026-05-31 | |
| Small Cap Growth Stock Portfolio | — | 71,133 | $3,926,542 | 0.43% | Long | 2026-06-30 | |
| iShares U.S. Pharmaceuticals ETF | IHE | 69,247 | $3,822,434 | 0.34% | Long | 2026-06-30 | |
| Schwab U.S. Small-Cap ETF | SCHA | 119,833 | $3,771,145 | 0.02% | Long | 2026-05-31 | |
| HARTFORD SMALL COMPANY HLS FUND | — | 66,029 | $3,644,801 | 0.78% | Long | 2026-06-30 | |
| Invesco Dorsey Wright Healthcare Momentum ETF | PTH | 54,646 | $3,602,811 | 1.53% | Long | 2026-07-31 | |
| Fidelity Advisor New Insights Fund | — | 63,900 | $3,527,280 | 0.01% | Long | 2026-06-30 | |
| U.S. SMALL CAP PORTFOLIO | DFSTX | 49,476 | $3,261,953 | 0.02% | Long | 2026-07-31 | |
| Master Small Cap Index Series | — | 58,019 | $3,202,649 | 0.05% | Long | 2026-06-30 | |
| U.S. MICRO CAP PORTFOLIO | DFSCX | 48,432 | $3,193,122 | 0.04% | Long | 2026-07-31 | |
| HARTFORD SMALL CAP GROWTH HLS FUND | — | 52,800 | $2,914,560 | 0.44% | Long | 2026-06-30 | |
| Fidelity Fundamental Small-Mid Cap ETF | FFSM | 42,630 | $2,810,596 | 0.19% | Long | 2026-07-31 | |
| Nuveen Small Cap Blend Index Fund | — | 38,662 | $2,548,986 | 0.06% | Long | 2026-07-31 | |
| MassMutual Small Cap Growth Equity Fund | — | 42,736 | $2,359,027 | 0.32% | Long | 2026-06-30 | |
| Small Cap Stock Trust | — | 41,876 | $2,311,555 | 0.78% | Long | 2026-06-30 | |
| Select Biotechnology Portfolio | FBIOX | 73,100 | $2,300,457 | 0.04% | Long | 2026-05-31 | |
| iShares Core S&P Total U.S. Stock Market ETF | ITOT | 40,785 | $2,251,332 | 0.00% | Long | 2026-06-30 | |
| JPMorgan Small Cap Value Fund | — | 40,764 | $2,250,173 | 0.17% | Long | 2026-06-30 |
Showing 1–50 of 206 positions