MBX
MBX Biosciences, Inc.Company with tickers: MBX
CIK
1776111
CUSIP
55287L101
Shares Outstanding
47,597,536
Website
https://www.mbxbio.com
Investor Relations
https://mbxbio.com/investors/
13F Activity (30d)
3 filings
2 filers
Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this stock, matched by the stock's CUSIP. Each row is one fund position with its size, value and weight in that fund.
Funds holding MBX
136 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 1,158,775 | $34,589,434 | 0.00% | Long | 2026-03-31 | |
| Eventide Healthcare & Life Sciences Fund | — | 890,000 | $26,566,500 | 1.67% | Long | 2026-03-31 | |
| T. Rowe Price Health Sciences Fund, Inc. | — | 721,309 | $21,531,074 | 0.20% | Long | 2026-03-31 | |
| iShares Russell 2000 ETF | — | 697,653 | $20,824,942 | 0.03% | Long | 2026-03-31 | |
| BlackRock Health Sciences Opportunities Portfolio | — | 333,350 | $10,850,543 | 0.17% | Long | 2026-02-27 | |
| Fidelity Fund | — | 321,100 | $9,584,835 | 0.11% | Long | 2026-03-31 | |
| Select Health Care Portfolio | — | 280,000 | $9,114,000 | 0.15% | Long | 2026-02-28 | |
| VIP Contrafund Portfolio | — | 286,900 | $8,563,965 | 0.03% | Long | 2026-03-31 | |
| VANGUARD EXTENDED MARKET INDEX FUND | — | 282,920 | $8,445,162 | 0.01% | Long | 2026-03-31 | |
| iShares Russell 2000 Value ETF | — | 243,159 | $7,258,296 | 0.06% | Long | 2026-03-31 | |
| State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF | — | 200,744 | $5,992,208 | 1.95% | Long | 2026-03-31 | |
| iShares Biotechnology ETF | — | 199,599 | $5,958,030 | 0.07% | Long | 2026-03-31 | |
| VANGUARD RUSSELL 2000 INDEX FUND | — | 141,110 | $4,593,131 | 0.03% | Long | 2026-02-28 | |
| Fidelity Extended Market Index Fund | — | 131,136 | $4,268,477 | 0.01% | Long | 2026-02-28 | |
| Schwab U.S. Small-Cap ETF | — | 121,577 | $3,957,331 | 0.02% | Long | 2026-02-28 | |
| BlackRock Health Sciences Term Trust | BMEZ | 128,549 | $3,837,188 | 0.38% | Long | 2026-03-31 | |
| Driehaus Micro Cap Growth Fund | — | 114,123 | $3,406,572 | 0.74% | Long | 2026-03-31 | |
| VANGUARD HEALTH CARE INDEX FUND | — | 67,179 | $2,186,676 | 0.01% | Long | 2026-02-28 | |
| Adara Smaller Companies Fund | — | 67,071 | $2,183,161 | 0.29% | Long | 2026-02-28 | |
| iShares Micro-Cap ETF | — | 71,759 | $2,142,006 | 0.18% | Long | 2026-03-31 | |
| iShares U.S. Pharmaceuticals ETF | — | 70,280 | $2,097,858 | 0.21% | Long | 2026-03-31 | |
| VictoryShares US Small Mid Cap Value Momentum ETF | — | 67,965 | $2,028,755 | 0.14% | Long | 2026-03-31 | |
| Fidelity Advisor New Insights Fund | — | 63,900 | $1,907,415 | 0.01% | Long | 2026-03-31 | |
| VANGUARD U.S. MOMENTUM FACTOR ETF | — | 51,855 | $1,687,880 | 0.12% | Long | 2026-02-28 | |
| Fidelity Total Market Index Fund | — | 46,624 | $1,517,611 | 0.00% | Long | 2026-02-28 | |
| VIP Health Care Portfolio | — | 50,000 | $1,492,500 | 0.15% | Long | 2026-03-31 | |
| Master Small Cap Index Series | — | 44,972 | $1,342,414 | 0.03% | Long | 2026-03-31 | |
| T. Rowe Price Health Sciences Portfolio | — | 44,028 | $1,314,236 | 0.20% | Long | 2026-03-31 | |
| ALPS Medical Breakthroughs ETF | — | 40,022 | $1,302,716 | 0.94% | Long | 2026-02-28 | |
| JPMorgan Small Cap Value Fund | — | 43,250 | $1,291,013 | 0.11% | Long | 2026-03-31 | |
| Fidelity Series Total Market Index Fund | — | 36,673 | $1,193,706 | 0.00% | Long | 2026-02-28 | |
| iShares Core S&P Total U.S. Stock Market ETF | — | 39,697 | $1,184,955 | 0.00% | Long | 2026-03-31 | |
| Fidelity Enhanced Small Cap ETF | — | 38,070 | $1,136,390 | 0.03% | Long | 2026-03-31 | |
| Fidelity Small Cap Value Index Fund | — | 35,327 | $1,054,511 | 0.06% | Long | 2026-03-31 | |
| Nuveen Small Cap Blend Index Fund | — | 34,600 | $1,045,612 | 0.03% | Long | 2026-04-30 | |
| Fidelity Series Opportunistic Insights Fund | — | 34,700 | $1,035,795 | 0.01% | Long | 2026-03-31 | |
| Roundhill GLP-1 & Weight Loss ETF | — | 34,264 | $1,022,780 | 1.99% | Long | 2026-03-31 | |
| Nuveen Equity Index Fund | — | 32,920 | $994,842 | 0.00% | Long | 2026-04-30 | |
| HARTFORD SMALL COMPANY HLS FUND | — | 31,399 | $937,260 | 0.24% | Long | 2026-03-31 | |
| EQ/2000 Managed Volatility Portfolio | — | 30,573 | $912,604 | 0.03% | Long | 2026-03-31 | |
| BlackRock Health Sciences Trust | BME | 28,457 | $849,441 | 0.16% | Long | 2026-03-31 | |
| Fidelity Nasdaq Composite Index Fund | — | 25,970 | $845,324 | 0.00% | Long | 2026-02-28 | |
| Destinations Small-Mid Cap Equity Fund | — | 25,346 | $825,012 | 0.11% | Long | 2026-02-28 | |
| JPMorgan U.S. Small Company Fund | — | 25,136 | $750,310 | 0.08% | Long | 2026-03-31 | |
| VANGUARD RUSSELL 2000 VALUE INDEX FUND | — | 21,033 | $684,624 | 0.06% | Long | 2026-02-28 | |
| Avantis U.S. Small Cap Equity ETF | — | 20,222 | $658,226 | 0.03% | Long | 2026-02-28 | |
| Small Cap Stock Trust | — | 19,872 | $593,179 | 0.24% | Long | 2026-03-31 | |
| Health Sciences Portfolio | — | 19,741 | $589,269 | 0.17% | Long | 2026-03-31 | |
| VANGUARD BALANCED INDEX FUND | — | 19,276 | $575,389 | 0.00% | Long | 2026-03-31 | |
| LVIP SSGA Small-Cap Index Fund | — | 19,200 | $573,120 | 0.03% | Long | 2026-03-31 |
Showing 1–50 of 136 positions